Rejoinder of Colombia

Document Number
17564
Document Type
Date of the Document
Document File
Document

INTERNATIONAL COURT OF JUSTICE

____________________________________________

CASE CONCERNING

AERIAL HERBICIDE SPRAYING

(ECUADOR v. COLOMBIA)

REJOINDER OF THE

REPUBLIC OF COLOMBIA

VOLUME I

1 FEBRUARY 2012 TABLE OF CONTENTS

Chapter 1. INTRODUCTIONAND OVERVIEW

A. General Remarks ................................ 1

B. Colombia’s Fight Against Drugs .................... 5

C. Ecuador’s Request for a Court-Ordered Buffer Zone ... 15

D. Ecuador’s Memorial and Reply ................... 24

E. Concluding Remarks ............................ 26

F. Outline of Rejoinder ............................ 27

Chapter 2. ECUADOR’S ARGUMENTS BASED ON
THE ALLEGED TOXICITY OF THE SPRAY

MIXTUREAND ON DRIFT

A. Introduction ................................... 31

B. The Spray Mixture ............................. 32

(1) E cuador’s sElEctivE usE of thE documEntary

EvidEncE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

(2) t hE composition of thE spray mixtu . . . . . . . . . .45

(3) t hEstatE dEpartmEnt rEpEatEdly cErtifiEd that
thE spray mixturE doEs not posE unrEasonablE
risks or advErsE EffEcts to humans or thE

EnvironmEnt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

(4) c onclusions on thE spray mixtur . . . . . . . . . . . . .83

iiiC. The Issue of Drift .............................. 85

(1) forEst canopy . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

(2) a ircraft spEEd and hEight of spray rElEasE . . . . .95

(3) d roplEt sizE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128

(4) a pplication ratE . . . . . . . . . . . . . . . . . . . . . . . . . .132

(5) tEmpEraturE ,humidity and wind conditions . . . .138

(6) a llEgEd night-timE spraying . . . . . . . . . . . . . . . .150

(7) c onclusions on drift . . . . . . . . . . . . . . . . . . . . . .158

D. Conclusions .................................. 161

Chapter3. ECUADOR HAS NOT SUBSTANTIATED ITS
CLAIMS OF DAMAGE

A. Introduction .................................. 165

B. The Absence of Hard Evidence of the Damage
Alleged ..................................... 171

C. The Witness Evidence Relied upon by Ecuador is not
Credible ..................................... 177

(1) g EnEral assEssmEnt of thE witnEss statEmEnts .178

(2) Ecuador ’s approach to thE witnEss EvidEncE . . .203

(3) thE spray data falsifiEs thE allEgations of thE
witnEssEs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220

D. Summary Assessment of the Scientific Evidence ..... 296

(1) thE assErtEd “ vulnErability” of thE EcosystEm
and bordEr populations in E cuador . . . . . . . . . . .297

iv (2) Ecuador ’s casE procEEds on thE basis of a
flawEd approach to risk managEmEnt . . . . . . . . .303

(3) Ecuador ’s casE procEEds on a flawEd approach
to modEling drift . . . . . . . . . . . . . . . . . . . . . . . . .307

(4) thE sciEntific EvidEncE dEmonstratEs thE lack

of significant toxicological EffEcts of thE
spray mixturE for humans or animals . . . . . . . . .310

(5) givEn thE location and mannEr in which it

was sprayEd thE spray mixturE could not havE
causEd thE harms allEgEd to plants . . . . . . . . . .332

E. OverallAppreciation of Ecuador’s Case on Harm .... 336

(1) allEgations vErsus E vidEncE . . . . . . . . . . . . . . .336

(2) thE issuE of causation . . . . . . . . . . . . . . . . . . . . .341

(3) puErto m Estanza . . . . . . . . . . . . . . . . . . . . . . . . .350

F. Conclusion .................................. 360

Chapter 4. LEGALISSUES

A. Introduction .................................. 363

B. EIAand the Environmental Management Plan ....... 364

(1) thE EnvironmEntal m anagEmEnt plan for
pEcig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .366

(2) colombia ’s ExErcisE of duE diligEncE in

conducting thE program . . . . . . . . . . . . . . . . . . . .386

(3) Eia rEquirEmEnts in intErnational law and
thEir application . . . . . . . . . . . . . . . . . . . . . . . . .407

(4) conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .418

vC. Ecuador’s Claims based on Violation of Territorial
Sovereignty .................................. 420

(1) E cuador ’s rEliancE on a panoply of irrElEvant

rulEs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .420

(2) t hE sourcE of obligation . . . . . . . . . . . . . . . . . . .424

(3) t hE aErial spraying program in no way

affEcts E cuador ’s tErritorial sovErEignty or
intEgrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .427

D. Ecuador’s Claims based on Breach of International

Environmental Law ............................ 427

E. Ecuador’s Claims based on Human Rights and the
Rights of Indigenous Peoples ..................... 432

(1) introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .432

(2) “t argEting ”: E cuador s incomprEhEnsion of
c olombia ’s casE . . . . . . . . . . . . . . . . . . . . . . . . . .435

(3) t hE tErritoriality of human rights obligations .436

(4) E cuador ’s argumEnt basEd on thE obligation
to “rEspEct and EnsurE ” . . . . . . . . . . . . . . . . . . .444

(5) E cuador ’s fact-frEE casE basEd on indigEnous

rights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .445

f . Conclusions .................................. 450

Chapter 5. REMEDIALISSUES

A. Compensation ................................ 457

B. Other Claims by Ecuador ....................... 459

viSUMMARY

A. Introduction .................................. 473

B. Alleged Toxicity of the Spray Mixture and Drift .....475

C. Ecuador has not Substantiated its Claims of Damage .. 483

D. Legal Issues .................................. 490

E. Remedial Issues ............................... 497

SUBMISSIONS ................................... 499

APPENDIX ...................................... 501

Analysis of Ecuadorian Witness Statements as to Timing and
Location of Spraying andAlleged Effects

LIST OF ANNEXES
(VOLUMES II, III, IV, VAND VI) ................... 765

vii Chapter 1

INTRODUCTION AND OVERVIEW

A. General Remarks

1.1. In its Reply as in its Memorial , Ecuador has portrayed a
devastating image of the situation of its northern regions

bordering Colombia, allegedly as a result of the drift from aerial

spraying operations to eradicate illicit coca crops conducted by

Colombia on its own territory between 2000 and 2007.
same time , Ecuador’s Reply contains offensive language and

makes numerous accusations against Colombia. It is suggested

for example that Colombia failed to provide evidence regarding

the Program for the Eradication of Illicit Crops by Aerial
1
Spraying with Glyphosate and deliberately misrepresented the
facts, including alleged violation s of Ecuador’s sovereignty and

territorial integrity . Colombia vigorously rejects these

accusations.

1.2. In fact, Ecuador’s written pleadings are largely based on

misrepresentations and on witness statements prepared for the

purposes of this litigation.

selection of the documents obtained from the U
Department of State under its Freedom of Information Act

(“FOIA”) requests, Ecuador attempted to show in its Reply that

residues of the spray mixture used in the aerial spraying

1
Hereinafter also referred to as PECIG, for its Spanish acronym.

viii Chapter 1

INTRODUCTION AND OVERVIEW

A. General Remarks

1.1. In its Reply as in its Memorial , Ecuador has portrayed a
devastating image of the situation of its northern regions

bordering Colombia, allegedly as a result of the drift from aerial

spraying operations to eradicate illicit coca crops conducted by

Colombia on its own territory between 2000 and 2007. At the
same time , Ecuador’s Reply contains offensive language and

makes numerous accusations against Colombia. It is suggested

for example that Colombia failed to provide evidence regarding

the Program for the Eradication of Illicit Crops by Aerial
1
Spraying with Glyphosate and deliberately misrepresented the
facts, including alleged violation s of Ecuador’s sovereignty and

territorial integrity . Colombia vigorously rejects these

accusations.

1.2. In fact, Ecuador’s written pleadings are largely based on

misrepresentations and on witness statements prepared for the

purposes of this litigation. In particular, through a careful

selection of the documents obtained from the U nited States
Department of State under its Freedom of Information Act

(“FOIA”) requests, Ecuador attempted to show in its Reply that

residues of the spray mixture used in the aerial spraying

1
Hereinafter also referred to as PECIG, for its Spanish acronym.

1operations may have been deposited on its territory and ma y

have caused alleged adverse effects on human health and the

environment.

1.3. Ecuador seeks to use the spray flight data as evidence of

the fact that Colombia did not conform to its own operational
requirements and failed to minimize drift. This material is

employed in an attempt to corroborate the witness statements

produced with the Memorial, which remain , with all their

imperfections, the core element of Ecuador’s case.

1.4. Colombia requested from the United States’ Government
copies of the entire record fu rnished to Ecuador pursuant to its

FOIA requests and analysed the Reply in the light of all these

documents, with the collaboration of qualified scientists whose
2
expert reports are attached to this Rejoinder. There are several

observations to make with r egard to Ecuador’s treatment of the
material acquired under the FOIA requests.

1.5. First, as will be shown in Chapter 2, Ecuador’s

allegations as to the conduct of the program are not based on an

2 CR, Vol. II, Annexes: 1, Dr A.J. Hewitt, Ph.D., Response to Report
“Spray Drift Modeling of Conditions of Application for Coca Crops in
Colombia by D.K. Giles, Jan. 2011” , 1 Nov. 2011; 2, Dr A.J. Hewitt, Ph.D.,
Aerial Spray Drift Modeling of Plan Colombia Applicatio, 1 Nov. 2011;
3, Dr K.R. Solomon, Ph. D., Expert Report of Keith R. Solomon on Behalf of
Colombia, Nov. 2011; 4, Dr S. Dobson, OBE Ph.D., Response to scientific
papers in Annexes to Volume II of Ecuador’s Reply (201Dec. 2011; 5, A.
Tait, International Mapping Associates, Statistical Summary of Data for

Spray Events Within the Relevant Area Along the Border between Colombia
and Ecuador , Dec. 2011; 6, DrB.M. Evans, Ph.D., Expert Report by Dr
Barry M. Evans, Dec. 2011.

2operations may have been deposited on its territory and ma y

have caused alleged adverse effects on human health and the

environment.

1.3. Ecuador seeks to use the spray flight data as evidence of

the fact that Colombia did not conform to its own operational
requirements and failed to minimize drift. This material is

employed in an attempt to corroborate the witness statements

produced with the Memorial, which remain , with all their

imperfections, the core element of Ecuador’s case.

1.4. Colombia requested from the United States’ Government
copies of the entire record fu rnished to Ecuador pursuant to its

FOIA requests and analysed the Reply in the light of all these

documents, with the collaboration of qualified scientists whose
2
expert reports are attached to this Rejoinder. There are several

observations to make with r egard to Ecuador’s treatment of the
material acquired under the FOIA requests.

1.5. First, as will be shown in Chapter 2, Ecuador’s

allegations as to the conduct of the program are not based on an

2 CR, Vol. II, Annexes: 1, Dr A.J. Hewitt, Ph.D., Response to Report
“Spray Drift Modeling of Conditions of Application for Coca Crops in
Colombia by D.K. Giles, Jan. 2011” , 1 Nov. 2011; 2, Dr A.J. Hewitt, Ph.D.,
Aerial Spray Drift Modeling of Plan Colombia Applicatio, 1 Nov. 2011;
3, Dr K.R. Solomon, Ph. D., Expert Report of Keith R. Solomon on Behalf of
Colombia, Nov. 2011; 4, Dr S. Dobson, OBE Ph.D., Response to scientific
papers in Annexes to Volume II of Ecuador’s Reply (201Dec. 2011; 5, A.
Tait, International Mapping Associates, Statistical Summary of Data for

Spray Events Within the Relevant Area Along the Border between Colombia
and Ecuador , Dec. 2011; 6, DrB.M. Evans, Ph.D., Expert Report by Dr
Barry M. Evans, Dec. 2011.1.9. Likewise, Ecuador claims that the human rights of

Ecuadorian nationals and indigenous communities were violated

as a result of the sprayings over illicit coca crops in Colombian

territory. However, quite aside from any legal considerations

(which will be addressed in Chapter 4 below), Ecuador’s claims
have not been established as a matter of fact and cannot be

reconciled with the scientific evidence which supports the

conclusion that the spraying mixture used in the program could

not possibly cause the adverse effects on the environment,

fauna, flora and human health that Ecuador complains about.

1.10. The fact of the matter is that the spray mixture does not

even remotely correspond to the lethal potion described by

Ecuador. Glyphosate has been studied extensively, perhaps

more than any other herbicide, and its properties are very well -

known. Glyphosate and glyphosate-based formulations are used
in gardens all over the world for weed control and in the most

eco-sensitive envir onments, to control invasive plants . I f

Ecuador (and its witnesses) a re to be believed and glyphosate

could really cause the kind of injury complained of, any harmful

effects would have been manifest by now. If glyphosate had

such a negative impact on the environment, it would have had
devastating effects for the soil fertility and crop yield of millions

of hectares of land throughout the planet. There would be a

substantial body of scientific evidence documenting such large

scale devastation. Glyphosate use would have been banned or

severely restricted. None of these consequences have been

41.9. Likewise, Ecuador claims that the human rights of

Ecuadorian nationals and indigenous communities were violated

as a result of the sprayings over illicit coca crops in Colombian

territory. However, quite aside from any legal considerations

(which will be addressed in Chapter 4 below), Ecuador’s claims
have not been established as a matter of fact and cannot be

reconciled with the scientific evidence which supports the

conclusion that the spraying mixture used in the program could

not possibly cause the adverse effects on the environment,

fauna, flora and human health that Ecuador complains about.

1.10. The fact of the matter is that the spray mixture does not

even remotely correspond to the lethal potion described by

Ecuador. Glyphosate has been studied extensively, perhaps

more than any other herbicide, and its properties are very well -

known. Glyphosate and glyphosate-based formulations are used
in gardens all over the world for weed control and in the most

eco-sensitive envir onments, to control invasive plants . I f

Ecuador (and its witnesses) a re to be believed and glyphosate

could really cause the kind of injury complained of, any harmful

effects would have been manifest by now. If glyphosate had

such a negative impact on the environment, it would have had
devastating effects for the soil fertility and crop yield of millions

of hectares of land throughout the planet. There would be a

substantial body of scientific evidence documenting such large

scale devastation. Glyphosate use would have been banned or

severely restricted. None of these consequences have been “The Security Council notes with concern the
increasing link, in some cases, between drug
trafficking and the financing of terrorism, including
through the use of proceeds derived from illicit

cultivation, production of and trafficking in narcotic
drugs and their precursors, as well as illegal arms
trafficking (…)

The Security Council encourages States to

strengthen international, regional and sub -regional
cooperation to counter drug -trafficking,
transnational organized crime, terrorism and
corruption... Through compliance with their

obligations under international law, including the
relevant resolutions of the Security Council, States
can help strengthen internati onal peace and
security.”4

1.13. The statement continued by referring to the relevant

international conventions, including the UN Convention Against

Illicit Traffic in Narcotic Drugs and Psychotropic Substances of

1988.

1.14. Colombia’s aerial spraying program must be seen in this
context, as a key component of a broader struggle against

terrorism and drug trafficking. The program is designed to

attack directly the supply of coca, thus decreasing the revenues

generated through drug trafficking. It must be stressed that the

program is a national one, not limited to border areas. Spraying

operations have been conducted in 23 of the 32 Colombian

provinces in exactly the same manner, and in compliance with

4 UN Security Council, “Statement by the President of the Security
Council”, S/PRST/2010/4, 24 February 2010, pp. 1- 2. Available at:
http://www.unic.or.jp/security_co/pdf/prst_2010_4.pdf (Last visited 10 Nov.
2011)

6 “The Security Council notes with concern the
increasing link, in some cases, between drug
trafficking and the financing of terrorism, including
through the use of proceeds derived from illicit

cultivation, production of and trafficking in narcotic
drugs and their precursors, as well as illegal arms
trafficking (…)

The Security Council encourages States to

strengthen international, regional and sub -regional
cooperation to counter drug -trafficking,
transnational organized crime, terrorism and
corruption... Through compliance with their

obligations under international law, including the
relevant resolutions of the Security Council, States
can help strengthen internati onal peace and
security.”4

1.13. The statement continued by referring to the relevant

international conventions, including the UN Convention Against

Illicit Traffic in Narcotic Drugs and Psychotropic Substances of

1988.

1.14. Colombia’s aerial spraying program must be seen in this
context, as a key component of a broader struggle against

terrorism and drug trafficking. The program is designed to

attack directly the supply of coca, thus decreasing the revenues

generated through drug trafficking. It must be stressed that the

program is a national one, not limited to border areas. Spraying

operations have been conducted in 23 of the 32 Colombian

provinces in exactly the same manner, and in compliance with

4 UN Security Council, “Statement by the President of the Security
Council”, S/PRST/2010/4, 24 February 2010, pp. 1- 2. Available at:
http://www.unic.or.jp/security_co/pdf/prst_2010_4.pdf (Last visited 10 Nov.
2011)groups that have sought to destabilize Colombian institutions,

affected the country’s productivity and promoted arms

trafficking, violence and corruption, resulting in enormous

damage to Colombia’s society, economy and environment.

1.17. Ecuador asserts that the aerial fumigations “have been
6
ineffective as a means of stemming the cultivation of coca.” A

review of the statistical data shows that this is untrue.
According to the 2011 Report of the United Nations Office on

Drugs and Crime (“UNODC”), during the last ten years,

Colombia succeeded in reducing the overall area under coca

cultivation by 65.1%, moving from 163,300 hectares in 2000 to

57,000 in 2010. 7 As a result , while in 2000 73. 8% of all the

coca cultivation existing in the world w as located in Colombia,

in 2010 this percentage decreased to 38 .2%. This successful

campaign could certainly not have been accomplished without

the aerial sprayings.

1.18. In a report issued in 2010 entitled The Globalization of

Crime: a Transnational Organized Crime Threat Assessment ,

UNODC commended Colombia as “the country which has made

most progress over the last few years in curbin g the threats to

national and international security emerging from drug

6
7 EM, para. 2.54.
UNODC, World Drug Report 2011, p. 99. Available at:
http://www.unodc.org/documents/data -and-analysis/WDR2011/
World_Drug_Report_2011_ebook.pdf?bcsi_scan_1DAA8B70D81D7BD8=q
BC4TDYO8vj0PlYZ1kLMkcaGuiwFAAAA3DOsAw==&bcsi_scan_filena
me=World_Drug_Report_2011_ebook.pdf (Last visited 10 Nov. 2011)

8groups that have sought to destabilize Colombian institutions,

affected the country’s productivity and promoted arms

trafficking, violence and corruption, resulting in enormous

damage to Colombia’s society, economy and environment.

1.17. Ecuador asserts that the aerial fumigations “have been
6
ineffective as a means of stemming the cultivation of coca.” A

review of the statistical data shows that this is untrue.
According to the 2011 Report of the United Nations Office on

Drugs and Crime (“UNODC”), during the last ten years,

Colombia succeeded in reducing the overall area under coca

cultivation by 65.1%, moving from 163,300 hectares in 2000 to

57,000 in 2010. 7 As a result , while in 2000 73. 8% of all the

coca cultivation existing in the world w as located in Colombia,

in 2010 this percentage decreased to 38 .2%. This successful

campaign could certainly not have been accomplished without

the aerial sprayings.

1.18. In a report issued in 2010 entitled The Globalization of

Crime: a Transnational Organized Crime Threat Assessment ,

UNODC commended Colombia as “the country which has made

most progress over the last few years in curbin g the threats to

national and international security emerging from drug

6
7 EM, para. 2.54.
UNODC, World Drug Report 2011, p. 99. Available at:
http://www.unodc.org/documents/data -and-analysis/WDR2011/
World_Drug_Report_2011_ebook.pdf?bcsi_scan_1DAA8B70D81D7BD8=q
BC4TDYO8vj0PlYZ1kLMkcaGuiwFAAAA3DOsAw==&bcsi_scan_filena
me=World_Drug_Report_2011_ebook.pdf (Last visited 10 Nov. 2011)1.20. The Director of the US Office of National Drug Control

Policy, R. Gil Kerlikowske, recently declared:

“Thanks in large part to Colombia’s relentless
eradication campaigns, for example, the production
of pure cocaine fell from an estimated 700 metric
tons potential pure cocaine production in 2001 to
only 270 metric tons in 2009 – a 61 percent drop.” 12

1.21. The success of the program has also affected the finances

of the narco -terrorist groups located in Colombia, as is

confirmed by a recognized authority on Latin-American policy,
Dr Gabriel Marcella:

“The success of the aerial eradication operations in
depriving the narco- terrorists of funding has been
confirmed by the FARC itself. Among the computer
files seized during the Colombian military raid of

the camp of FARC commander Raúl Reyes on
March 1, 2008, was an email in which Reyes
bemoaned the impact of the spraying: ‘In the area of
finances, we have been unable to do a big deal, we

have only done some small things, and the situation
is difficult because of the eradication and
fumigation.’ Other captured records reflect the
FARC’s efforts to stop the spraying operations by
raising concerns about alleged environmental

effects. In one document, Raúl Reyes discussed a
message from Ecuado rian Minister of National
Security, Gustavo Larrea, in which the Ecuadorian
minister was believed to be seeking to foster
relations with the FARC in part by agreeing that

Ecuador ‘will sue the state and government of
Colombia before the International Court for the
damages the aerial spraying has caused.’ In another

12 Embassy of the United States in Colombia, Press Releases 2011, 18
Jan. 2011, “Remarks by White House Drug Policy Director, Gil Kerlikowske
to Mentor Foundation Colombia in Bogotá, Colombia” . Available at:

http://bogota.usembassy.gov/pr_001_18112011.html (Last visited 10 Nov.
2011)

101.20. The Director of the US Office of National Drug Control

Policy, R. Gil Kerlikowske, recently declared:

“Thanks in large part to Colombia’s relentless
eradication campaigns, for example, the production
of pure cocaine fell from an estimated 700 metric
tons potential pure cocaine production in 2001 to
only 270 metric tons in 2009 – a 61 percent drop.” 12

1.21. The success of the program has also affected the finances

of the narco -terrorist groups located in Colombia, as is

confirmed by a recognized authority on Latin-American policy,
Dr Gabriel Marcella:

“The success of the aerial eradication operations in
depriving the narco- terrorists of funding has been
confirmed by the FARC itself. Among the computer
files seized during the Colombian military raid of

the camp of FARC commander Raúl Reyes on
March 1, 2008, was an email in which Reyes
bemoaned the impact of the spraying: ‘In the area of
finances, we have been unable to do a big deal, we

have only done some small things, and the situation
is difficult because of the eradication and
fumigation.’ Other captured records reflect the
FARC’s efforts to stop the spraying operations by
raising concerns about alleged environmental

effects. In one document, Raúl Reyes discussed a
message from Ecuado rian Minister of National
Security, Gustavo Larrea, in which the Ecuadorian
minister was believed to be seeking to foster
relations with the FARC in part by agreeing that

Ecuador ‘will sue the state and government of
Colombia before the International Court for the
damages the aerial spraying has caused.’ In another

12 Embassy of the United States in Colombia, Press Releases 2011, 18
Jan. 2011, “Remarks by White House Drug Policy Director, Gil Kerlikowske
to Mentor Foundation Colombia in Bogotá, Colombia” . Available at:

http://bogota.usembassy.gov/pr_001_18112011.html (Last visited 10 Nov.
2011)1.24. These efforts would be in vain without a joint concerted

effort with other countries and regions; a fortiori in the case of a

bordering country. All the links in the criminal chain must be

fought: illicit crops, drug processing, clandestine laboratories,

transport, distribution, consumption, money laundering, etc.

1.25. As stated in the Counter-Memorial, the cultivation of

illicit crops and their transformation into processed drugs are the
worst cause of environmental degradation in Colombia. This

damage is caused by the slashing of forests to plant coca crops

and the pollution generated by its processing. Between 2000

and 2010, 251,370 hectares of forest were cleared to plant coca,

of which 121,026 hectares were primary forests of high

complexity, bio-diversity and richness. To refrain from taking

all measures necessary to counter illicit crops would have

involved major neglect of Colombia’s responsibilities as one of

the world’s most mega-diverse countries.

1.26. It is also important to recall that “the main concentration

of coca cultivation is associated to the Putumayo River, mainly

in zones of expansion of the area of influence of coca
cultivation…” 15 This area, as can be verified in the 2010

UNODC Coca Survey, corresponds precisely to the area

bordering Ecuador. 16

15 CR, Vol. V I, Annex 60: UNODC, Colombia Coca Cultivation
Survey 2010, June, 2011, p. 31.
16 Ibid., p. 30.

121.24. These efforts would be in vain without a joint concerted

effort with other countries and regions; a fortiori in the case of a

bordering country. All the links in the criminal chain must be

fought: illicit crops, drug processing, clandestine laboratories,

transport, distribution, consumption, money laundering, etc.

1.25. As stated in the Counter-Memorial, the cultivation of

illicit crops and their transformation into processed drugs are the
worst cause of environmental degradation in Colombia. This

damage is caused by the slashing of forests to plant coca crops

and the pollution generated by its processing. Between 2000

and 2010, 251,370 hectares of forest were cleared to plant coca,

of which 121,026 hectares were primary forests of high

complexity, bio-diversity and richness. To refrain from taking

all measures necessary to counter illicit crops would have

involved major neglect of Colombia’s responsibilities as one of

the world’s most mega-diverse countries.

1.26. It is also important to recall that “the main concentration

of coca cultivation is associated to the Putumayo River, mainly

in zones of expansion of the area of influence of coca
cultivation…” 15 This area, as can be verified in the 2010

UNODC Coca Survey, corresponds precisely to the area

bordering Ecuador. 16

15 CR, Vol. V I, Annex 60: UNODC, Colombia Coca Cultivation
Survey 2010, June, 2011, p. 31.
16 Ibid., p. 30.Figure 1-2 Coca cultivation density in the Putumayo-Caquetá
18
region, 2010.

18
CR, Vol. VI, Annex 60: UNODC, Colombia Coca Cultivation
Survey 2010, June, 2011, p. 30.

14Figure 1-2 Coca cultivation density in the Putumayo-Caquetá
18
region, 2010.

18
CR, Vol. VI, Annex 60: UNODC, Colombia Coca Cultivation
Survey 2010, June, 2011, p. 30.issue at a few meters (or, at most, at tens of metres) downwind

of the spraying sites. It follows that the compulsory suspension
of any sprayings within 10 kilometres from the common

boundary is unnecessary, irrelevant and unacceptable. In this

regard, it is important to recall certain points already discussed

in the Counter-Memorial.

1.30. The border area between Colombia and Ecuador is

divided into three sectors: the Pacific, the Amazonian and the
Andean. The aerial sprayings have taken place only in the first

two sectors since the third, the Andean sector, which is also the

most heavily populate d, is not affected by the cultivation of
illicit coca crops. It should also be noted that the sprayings

carried out in Colombian territory in the first two sectors of the

border area cover only 140.13 kilometres of the 717 kilometres

that make up the tota l length of the boundary, i.e. they only
concern 19.55% of the boundary, as shown in the following

figure:

16issue at a few meters (or, at most, at tens of metres) downwind

of the spraying sites. It follows that the compulsory suspension

of any sprayings within 10 kilometres from the common

boundary is unnecessary, irrelevant and unacceptable. In this

regard, it is important to recall certain points already discussed

in the Counter-Memorial.
76°0'W

1.30. The border area between Colombia and Ecuador is

divided into three sectors: the Pacific, the Amazonian and the

Andean. The aerial sprayings have taken place only in the first

two sectors since the third, the Andean sector, which is also the

77°0'W
most heavily populate d, is not affected by the cultivation of

illicit coca crops. It should also be noted that the sprayings

carried out in Colombian territory in the first two sectors of the

border area cover only 140.13 kilometres of the 717 kilometres

that make up the tota l length of the boundary, i.e. they only

concern 19.55% of the boundary, as shown in the following

78°0'W
figure:

79°0'W

Figure 1-31.31. For the most part, Ecuador’s complaints arose from spray
events that are alleged to have taken place in the Ecuadorian

province of Sucumbíos, which adjoins Colombia via the

Putumayo River, which has a width of between 600 and 1,500

metres in the sector, and through the San Miguel River, shown

in Figure 1-4 below, which is on average 350 metres wide:

Figure 1-4 San Miguel River

1.32. Indicative of the misrepresentations of the facts on which
Ecuador relies is the manner in which Ecuador, which should be

well acquainted with the region since it fought for over a century

to uphold its rights as an “Amazonian” nation, now asserts

before the Court that, “[n]one of the border rivers are very wide;

the distance between the Ecuadorian and Colombian banks can

181.31. For the most part, Ecuador’s complaints arose from spray
events that are alleged to have taken place in the Ecuadorian

province of Sucumbíos, which adjoins Colombia via the

Putumayo River, which has a width of between 600 and 1,500

metres in the sector, and through the San Miguel River, shown

in Figure 1-4 below, which is on average 350 metres wide:

Figure 1-4 San Miguel River

1.32. Indicative of the misrepresentations of the facts on which
Ecuador relies is the manner in which Ecuador, which should be

well acquainted with the region since it fought for over a century

to uphold its rights as an “Amazonian” nation, now asserts

before the Court that, “[n]one of the border rivers are very wide;

the distance between the Ecuadorian and Colombian banks canpolice forces, build laboratories to process cocaine and establish
25
deposits for arms.

1.34. The “Comisión de Transparencia y Verdad ‘Caso

Angostura’” [Commission on Transparency and Truth for the

Angostura Case] set up by the Ecuadorian Government in order

to verify the situation existing in its territory bordering

Colombia noted the following in a report of December 2009,

with regard to the Putumayo-San Miguel sector:

“For example, nearby the geodesic line that
connects the Putumayo and San Miguel Rivers

(border between the two countries in the Sucumbíos
region), drug processing laboratories, permanent
and mobile camps, weapons and fuel storage
facilities have been established. Along that border,

42 illegal crosses can be found.”

“The Sucumbíos Province is used as an operations

center by the FARC’s 48 and 32 fronts. Front 29 has
influence in Carchi and Esmeraldas. Whereas in
Esmeraldas (Ecuadorian province in the west of the
common border) other groups emerging from

paramilitarism such as Los Rastrojos, Nueva
Generación, Las Aguilas Negras and Los Zorros

25
http://www.elmercurio.com.ec/291201-policia-de-ecuador-descubre-
laboratorio-de-cocaina-en-costa-del-pacifico.html (Last visited 10 Nov.
2011);
http://www.eluniversal.com.co/cartagena/nacional/ecuador-encuentra-
cultivo-de-coca-en-frontera-con-colombia-21838 (Last visited 10 Nov. 2011)
http://www.eluniversal.com.mx/internacional/70082.html (Last visited 10
Nov. 2011);
http://www.eltiempo.com/archivo/documento/CMS-4848236 (Last visited 10
Nov. 2011);
http://www.eluniversal.com.co/cartagena/internacional/hallan-en-ecuador-
laboratorio-de-procesamiento-de-droga-36576 (Last visited 10 Nov. 2011);
http://www.eluniversal.com.co/cartagena/internacional/decomisan-385-kil…-
de-marihuana-en-norte-de-ecuador-45858 (Last visited 10 Nov. 2011).

20police forces, build laboratories to process cocaine and establish
25
deposits for arms.

1.34. The “Comisión de Transparencia y Verdad ‘Caso

Angostura’” [Commission on Transparency and Truth for the

Angostura Case] set up by the Ecuadorian Government in order

to verify the situation existing in its territory bordering

Colombia noted the following in a report of December 2009,

with regard to the Putumayo-San Miguel sector:

“For example, nearby the geodesic line that
connects the Putumayo and San Miguel Rivers

(border between the two countries in the Sucumbíos
region), drug processing laboratories, permanent
and mobile camps, weapons and fuel storage
facilities have been established. Along that border,

42 illegal crosses can be found.”

“The Sucumbíos Province is used as an operations

center by the FARC’s 48 and 32 fronts. Front 29 has
influence in Carchi and Esmeraldas. Whereas in
Esmeraldas (Ecuadorian province in the west of the
common border) other groups emerging from

paramilitarism such as Los Rastrojos, Nueva
Generación, Las Aguilas Negras and Los Zorros

25
http://www.elmercurio.com.ec/291201-policia-de-ecuador-descubre-
laboratorio-de-cocaina-en-costa-del-pacifico.html (Last visited 10 Nov.
2011);
http://www.eluniversal.com.co/cartagena/nacional/ecuador-encuentra-
cultivo-de-coca-en-frontera-con-colombia-21838 (Last visited 10 Nov. 2011)
http://www.eluniversal.com.mx/internacional/70082.html (Last visited 10
Nov. 2011);
http://www.eltiempo.com/archivo/documento/CMS-4848236 (Last visited 10
Nov. 2011);
http://www.eluniversal.com.co/cartagena/internacional/hallan-en-ecuador-
laboratorio-de-procesamiento-de-droga-36576 (Last visited 10 Nov. 2011);
http://www.eluniversal.com.co/cartagena/internacional/decomisan-385-kil…-
de-marihuana-en-norte-de-ecuador-45858 (Last visited 10 Nov. 2011).and insists further that this be done indefinitely, unconditionally

and by order of the Court.

1.37. On 25 June 2005 the group “Frente 49” of the “FARC”,

situated in Ecuadorian territory, attacked the Colombian military

base at Teteyé, on the Putumayo River, killing l9 Colombian

soldiers, kidnapping one soldier and leaving 11 more gravely
28
injured. In spite of the gravity of this incident – and
notwithstanding the fact that drug trafficking is the main source

of financing for the FARC – a month later Ecuador reiterated its

request to establish a no-spraying zone of 10 kilometres parallel

to the boundary.

1.38. Nevertheless, in a spirit of friendliness and cooperation,

at the end of 2005 the Colombian Government offered – in a

gesture that was heavily criticized from many quarters in

Colombia – to suspend temporarily the sprayings in the zone up

to 10 kilometres parallel to the border with Ecuador.

1.39. Colombia’s gesture provoked an immediate and

significant increase in the cultivation of illicit coca crops in the

area and resulted in growing attacks by armed groups from

Ecuadorian territory in the area in support of the activities
29
connected with drug trafficking.

28
Ecuador Inmediato.Com, “Uribe Demanda a Ecuador por ataque
de las FARC”, 27 June 2006. Available at:
http://www.ecuadorinmediato.com/Noticias/news_user_view/ecuadorinmedia
to_noticias--16255 (Last visited 10 Nov. 2011)
29 On 21 February 2006, an attack took place in the locality of San
Joaquín on the Putumayo River; on 1stMarch 2006, an attack was launched

22and insists further that this be done indefinitely, unconditionally

and by order of the Court.

1.37. On 25 June 2005 the group “Frente 49” of the “FARC”,

situated in Ecuadorian territory, attacked the Colombian military

base at Teteyé, on the Putumayo River, killing l9 Colombian

soldiers, kidnapping one soldier and leaving 11 more gravely
28
injured. In spite of the gravity of this incident – and
notwithstanding the fact that drug trafficking is the main source

of financing for the FARC – a month later Ecuador reiterated its

request to establish a no-spraying zone of 10 kilometres parallel

to the boundary.

1.38. Nevertheless, in a spirit of friendliness and cooperation,

at the end of 2005 the Colombian Government offered – in a

gesture that was heavily criticized from many quarters in

Colombia – to suspend temporarily the sprayings in the zone up

to 10 kilometres parallel to the border with Ecuador.

1.39. Colombia’s gesture provoked an immediate and

significant increase in the cultivation of illicit coca crops in the

area and resulted in growing attacks by armed groups from

Ecuadorian territory in the area in support of the activities
29
connected with drug trafficking.

28
Ecuador Inmediato.Com, “Uribe Demanda a Ecuador por ataque
de las FARC”, 27 June 2006. Available at:
http://www.ecuadorinmediato.com/Noticias/news_user_view/ecuadorinmedia
to_noticias--16255 (Last visited 10 Nov. 2011)
29 On 21 February 2006, an attack took place in the locality of San
Joaquín on the Putumayo River; on 1stMarch 2006, an attack was launchedfor all the illegal and violent activities connected to the world

drug problem.

1.41. Today, Colombia is a much safer place and it s economic

and social situation has considerably improved. According to the

UNODC, world cocaine production has shown a marked
downward trend, due to the decline in production in Colombia. 31

Banning aerial sprayings altogether in a strip of territory along

the Colombia-Ecuador border would set the clock back to a time

when terrorist groups and the drug trade prospered. It is an

unacceptable option for Colombia, violative of its sovereignty;

but its negative impacts would be felt well beyond the South
American continent. Such a state of affairs would only benefit

terrorist groups who will be able to resume their oper ations with

profits generated by drug cultivation and trafficking. Colombia

will return to this point in Chapter 5.

D. Ecuador’s Memorial and Reply

1.42. While Ecuador’s position has not changed significantly
from the case laid out in the Memorial , its Reply shows a

marked difference of degree in the overall approach to the main

issues underlying its claims. On the one hand, Ecuador se ts

great stock in t he material it obtained from the US Department

of State pursuant to its FOIA requests and heavily relies on it in
an attempt to give credibility to its witness evidence of human

and environmental harm. On the other hand, Ecuador has given

up any direct su ggestion that the sprayings have caused deaths,

31
UNODC, World Drug Report 2011, p. 37.

24for all the illegal and violent activities connected to the world

drug problem.

1.41. Today, Colombia is a much safer place and it s economic

and social situation has considerably improved. According to the

UNODC, world cocaine production has shown a marked
downward trend, due to the decline in production in Colombia. 31

Banning aerial sprayings altogether in a strip of territory along

the Colombia-Ecuador border would set the clock back to a time

when terrorist groups and the drug trade prospered. It is an

unacceptable option for Colombia, violative of its sovereignty;

but its negative impacts would be felt well beyond the South
American continent. Such a state of affairs would only benefit

terrorist groups who will be able to resume their oper ations with

profits generated by drug cultivation and trafficking. Colombia

will return to this point in Chapter 5.

D. Ecuador’s Memorial and Reply

1.42. While Ecuador’s position has not changed significantly
from the case laid out in the Memorial , its Reply shows a

marked difference of degree in the overall approach to the main

issues underlying its claims. On the one hand, Ecuador se ts

great stock in t he material it obtained from the US Department

of State pursuant to its FOIA requests and heavily relies on it in
an attempt to give credibility to its witness evidence of human

and environmental harm. On the other hand, Ecuador has given

up any direct su ggestion that the sprayings have caused deaths,

31
UNODC, World Drug Report 2011, p. 37. E. Concluding Remarks

1.45. In its Reply, Ecuador attempts to portray a dramatic

situation of its northern border area, allegedly as a result of the

deposit of residues of the spray mixture used in aerial spraying
operations conducted within Colombian territory between 2000

and 2007. The Reply does not allude, however, to the situation

in the border provinces of Ecuador caused by the Government’s
long-standing neglect and the presence of drug traffickers , who

have set up cocaine laboratories and smugglers, as pointed out

by the Comisión de Transparencia y Verdad convened by the
Ecuadorian Government to investigate the situation in the border

with Colombia. It also fails to mention the illegal armed groups

coming from Colombia that, with the tolerance or indifference

of Ecuador’s authorities, remain in Ecuadorian territory and
profit from the illicit crops located in Colombia.

1.46. Ecuador attempts to substantiate its a llegations by
prefabricated testimony; by presenting unwarranted conclusions

and counterfactual assumptions as undisputed facts , and by

seeking to establish that Colombia breached its own regulations

with regard to the conduct of the spraying program . Ecuador
completely ignores the criminal and social phenomenon of illicit

drugs and seeks to distort the real scope of the efforts deployed

against it by Colombia. Ecuador wholly disregards the links
between the financing of transnational crime and terrorism and

drug trafficking. Colombia’s aerial spraying program must be

seen as a key component of a much broader struggle against

terrorism and drug trafficking . This is the real context of the

26 E. Concluding Remarks

1.45. In its Reply, Ecuador attempts to portray a dramatic

situation of its northern border area, allegedly as a result of the

deposit of residues of the spray mixture used in aerial spraying
operations conducted within Colombian territory between 2000

and 2007. The Reply does not allude, however, to the situation

in the border provinces of Ecuador caused by the Government’s
long-standing neglect and the presence of drug traffickers , who

have set up cocaine laboratories and smugglers, as pointed out

by the Comisión de Transparencia y Verdad convened by the
Ecuadorian Government to investigate the situation in the border

with Colombia. It also fails to mention the illegal armed groups

coming from Colombia that, with the tolerance or indifference

of Ecuador’s authorities, remain in Ecuadorian territory and
profit from the illicit crops located in Colombia.

1.46. Ecuador attempts to substantiate its a llegations by
prefabricated testimony; by presenting unwarranted conclusions

and counterfactual assumptions as undisputed facts , and by

seeking to establish that Colombia breached its own regulations

with regard to the conduct of the spraying program . Ecuador
completely ignores the criminal and social phenomenon of illicit

drugs and seeks to distort the real scope of the efforts deployed

against it by Colombia. Ecuador wholly disregards the links
between the financing of transnational crime and terrorism and

drug trafficking. Colombia’s aerial spraying program must be

seen as a key component of a much broader struggle against

terrorism and drug trafficking . This is the real context of the caused by the spray program. Its case must fail: it is not

a breach of international law for de minimis quantities of

a known and widely used herbicide to drift across a

border, if they do no ha rm there. Ecuador has chosen to
seek to prove its case primarily by some 45 witness

statements, supplemented by documents which for the

most part are parasitic upon accounts by local residents

after the event (and not independently checked by the
writers of those documents). Th is critical body of

material is examined and analysed in detail; the analysis

shows that it is not worthy of any credit at all, being

largely contradicted by the spray data, and involving
assertions of the scientifically impossible or implausible.

The allegations of the individual witness statements are

analysed in the Appendix to this Rejoinder. 35Ecuador’s

case on damage and causation fails entirely.

That being so, Ecuador’s claims as to the law take a

decided back seat – indeed they miss the bus altogether.

But they are dealt with, compendiously, in Chapter 4 ,

which discusses in turn (a) Ecuador’s claim concerning
assessment, showing that, contrary to Ecuador’s

portrayal, Colombia undertook prior studies, an

Environmental Manageme nt Plan that includes the

essential elements of an Environmental Impact

Assessment, has continuously monitored the aerial
35
CR, Vol. I , p. 503, Appendix: Analysis of Ecuadorian Witness
Statements as to Timing and Location of Spraying and Alleged Effects
(261p.).

28 caused by the spray program. Its case must fail: it is not

a breach of international law for de minimis quantities of

a known and widely used herbicide to drift across a

border, if they do no ha rm there. Ecuador has chosen to
seek to prove its case primarily by some 45 witness

statements, supplemented by documents which for the

most part are parasitic upon accounts by local residents

after the event (and not independently checked by the
writers of those documents). Th is critical body of

material is examined and analysed in detail; the analysis

shows that it is not worthy of any credit at all, being

largely contradicted by the spray data, and involving
assertions of the scientifically impossible or implausible.

The allegations of the individual witness statements are

analysed in the Appendix to this Rejoinder. 35Ecuador’s

case on damage and causation fails entirely.

That being so, Ecuador’s claims as to the law take a

decided back seat – indeed they miss the bus altogether.

But they are dealt with, compendiously, in Chapter 4 ,

which discusses in turn (a) Ecuador’s claim concerning
assessment, showing that, contrary to Ecuador’s

portrayal, Colombia undertook prior studies, an

Environmental Manageme nt Plan that includes the

essential elements of an Environmental Impact

Assessment, has continuously monitored the aerial
35
CR, Vol. I , p. 503, Appendix: Analysis of Ecuadorian Witness
Statements as to Timing and Location of Spraying and Alleged Effects
(261p.). 6. Dr Barry Evans, Expert Report , (satellite imagery;

vegetation before and after spraying)Annex 6; and

7. Mr José Vicente Zapata, Critique of the Report
Prepared by Ms. Cl audia Rojas Quiñonez, dated

January 2011 on “The Aerial Spraying Program and
Violations of Colombia´s Domestic Laws Regarding
the Environment and The Rights of Indigenous

Peoples”, (Colombian law) Annex 7.

The Court is respectfully requested to refer to these reports as
independent documents. Their conclusions will referred to as

necessary in this Rejoinder . Volumes II -VI comprise the
documentary annexes to this Rejoinder.

30 6. Dr Barry Evans, Expert Report , (satellite imagery;

vegetation before and after spraying)Annex 6; and

7. Mr José Vicente Zapata, Critique of the Report
Prepared by Ms. Cl audia Rojas Quiñonez, dated

January 2011 on “The Aerial Spraying Program and
Violations of Colombia´s Domestic Laws Regarding
the Environment and The Rights of Indigenous

Peoples”, (Colombian law) Annex 7.

The Court is respectfully requested to refer to these reports as
independent documents. Their conclusions will referred to as

necessary in this Rejoinder . Volumes II -VI comprise the
documentary annexes to this Rejoinder.most, tens of metres downwind of the application site. On this

basis no buffer zone is called for, beyond the 100 metres

provided for in Colombia’s re gulations, surrounding bodies of

water, etc. With the use of accurate modelling and analysis of

relevant spray events within 1 km of the border, Colombia will

demonstrate that there was no de posit in Ecuador – or, if there

was any, it was de minimis , insignificant and would have been

well below the levels of concern for sensitive areas of interest.

2.4. The question of the composition of the spray mixture and

the issue of drift will be dealt with in Sections B and C
respectively. Section D deals with certain related issues by way

of summary of Colombia’s case on harm.

B. The Spray Mixture

2.5. Even though Ecuador has now retreated from its claim

that Colombia’s aerial spraying program has directly caused

deaths and admits that “its effects on people might not

necessarily be fatal”, 37it maintains in its Reply that Colombia

did not disclose the precise components of the spray mixture and

that it misrepresented its alleged harmful effects on the human

and natural environment. Ecuador’s Reply uses intemperate

language and calls Colombia’s defence a “grand deception” and

a “pantomime”, claiming that Colombia “entirely distorts reality
38
in order to hide the true danger of the program”.

                                                            
37 ER, para. 2.4.
38 ER, paras. 2.1-2.5.

32most, tens of metres downwind of the application site. On this

basis no buffer zone is called for, beyond the 100 metres

provided for in Colombia’s re gulations, surrounding bodies of

water, etc. With the use of accurate modelling and analysis of

relevant spray events within 1 km of the border, Colombia will

demonstrate that there was no de posit in Ecuador – or, if there

was any, it was de minimis , insignificant and would have been

well below the levels of concern for sensitive areas of interest.

2.4. The question of the composition of the spray mixture and

the issue of drift will be dealt with in Sections B and C
respectively. Section D deals with certain related issues by way

of summary of Colombia’s case on harm.

B. The Spray Mixture

2.5. Even though Ecuador has now retreated from its claim

that Colombia’s aerial spraying program has directly caused

deaths and admits that “its effects on people might not

necessarily be fatal”, 37it maintains in its Reply that Colombia

did not disclose the precise components of the spray mixture and

that it misrepresented its alleged harmful effects on the human

and natural environment. Ecuador’s Reply uses intemperate

language and calls Colombia’s defence a “grand deception” and

a “pantomime”, claiming that Colombia “entirely distorts reality
38
in order to hide the true danger of the program”.

                                                            
37 ER, para. 2.4.
38 ER, paras. 2.1-2.5.2.9. Despite having received thes e studies through its FOIA

requests, Ecuador ignores them altogether in its Reply . Ecuador

has preferred not to file information in its possession that

directly undermines its claims.

2.10. By way of background, it is worth noting that the 2003

acute toxicity studies of the sp ray mixture (acute oral, acute

dermal, acute inhalation, primar y eye irritation, primary skin

irritation and dermal sensitizati on), contracted by the US State

Department and reviewed by the EPA, were part of a process of

monitoring and review of the aer ial eradication program carried

out in Colombia with the cooperation of the United States

Government. The US Congress first authorized the aerial

eradication program in 2000. Ther eafter, it has continued to

authorize these operations in every year up to the present,

through three different Administ rations (those of President

Clinton, President George W. Bush and President Obama).

2.11. The spray mixture has been subject to comprehensive

analyses carried out by the EPA and the State Department.

Pursuant to the relevant US domestic appropriations

legislation,39 in order to make funds available for the

39                                                          
Foreign Operations, Export Financing, and Related Programs
Appropriations Act, 2002 (FOAA 2002). Available at:
http://www.gpo.gov/fdsys/pkg/BILLS-107hr2506enr/pdf/BILLS-107hr
2506enr.pdf (Last visited 10 Nov. 2011); Consolidated Appropriations
Resolution, 2003. Available at: http://www.gpo.gov/fdsys/pkg/PLAW-
108publ7/pdf/PLAW-108publ7.pdf (Last visited 10 Nov. 2011);
Consolidated Appropriations Act, 2004. Available at:

http://www.dsca.mil/programs/lpa/2004/getdoc.cgi_dbname=108_cong_
public_laws&docid=f_publ199.108.pdf (Last visited 10 Nov. 2011);
Consolidated Appropriations Act, 2005. Available at:
http://www.gpo.gov/fdsys/pkg/PLAW-108publ447/pdf/PLAW-108publ

342.9. Despite having received thes e studies through its FOIA

requests, Ecuador ignores them altogether in its Reply . Ecuador

has preferred not to file information in its possession that

directly undermines its claims.

2.10. By way of background, it is worth noting that the 2003

acute toxicity studies of the sp ray mixture (acute oral, acute

dermal, acute inhalation, primar y eye irritation, primary skin

irritation and dermal sensitizati on), contracted by the US State

Department and reviewed by the EPA, were part of a process of

monitoring and review of the aer ial eradication program carried

out in Colombia with the cooperation of the United States

Government. The US Congress first authorized the aerial

eradication program in 2000. Ther eafter, it has continued to

authorize these operations in every year up to the present,

through three different Administ rations (those of President

Clinton, President George W. Bush and President Obama).

2.11. The spray mixture has been subject to comprehensive

analyses carried out by the EPA and the State Department.

Pursuant to the relevant US domestic appropriations

legislation,39 in order to make funds available for the

39                                                          
Foreign Operations, Export Financing, and Related Programs
Appropriations Act, 2002 (FOAA 2002). Available at:
http://www.gpo.gov/fdsys/pkg/BILLS-107hr2506enr/pdf/BILLS-107hr
2506enr.pdf (Last visited 10 Nov. 2011); Consolidated Appropriations
Resolution, 2003. Available at: http://www.gpo.gov/fdsys/pkg/PLAW-
108publ7/pdf/PLAW-108publ7.pdf (Last visited 10 Nov. 2011);
Consolidated Appropriations Act, 2004. Available at:

http://www.dsca.mil/programs/lpa/2004/getdoc.cgi_dbname=108_cong_
public_laws&docid=f_publ199.108.pdf (Last visited 10 Nov. 2011);
Consolidated Appropriations Act, 2005. Available at:
http://www.gpo.gov/fdsys/pkg/PLAW-108publ447/pdf/PLAW-108publ “(1) the herbicide is being used in accordance with

Environmental Protection Agency label
requirements for comparable use in the United
States and with Colombian laws; and

(2) the herbicide, in the manner it is being used,
does not pose unreasonable risks or adverse effects

to humans or the environment including endemic
species.” 41

2.12. On that basis, the US Secretary of State determined and

certified to Congress that the required conditions were met by

the spray mixture used in the Colombia aerial eradication

program in 2002, 2003, 2004, 2005, 2006, 2007 and 2008. 42

2.13. Colombia is reproducing in full at Annexes 53-A to 53-G

the Memoranda of Justification Concerning the Aerial

Eradication of Coca in Colombia issued by the State Department

from 2002 to 2008, together with their attachments. These

documents are publicly available on the website of the US State

Department. They were discussed in Colombia’s Counter-

Memorial and partially annexed to that pleading. 43Inexplicably,

Ecuador makes no mention whatsoever of them, or their

findings, in the Reply.

2.14. Section I of Chapter 2 of the Reply alleges that Colombia

employed (without disclosure) highly toxic glyphosate-based

                                                            
41 Omnibus Appropriation Act, 2009. Available at:
http://www.gpo.gov/fdsys/pkg/PLAW-111publ8/pdf/PLAW-111publ8.pdf
(Last visited 10 Nov. 2011); Consolidated Appropriations Act, 2010.
Available at: http://www.gpo.gov/f dsys/pkg/PLAW-111publ117/pdf/PLAW-
111publ117.pdf (Last visited 10 Nov. 2011).
42
For copies of the Memoranda, see CCM, Vol. III, Annexes 140, 143,
144, 146, 147, 149 and CR, Vol. IV, Annex 53, Memoranda of Justification
43 the United States Department of State, 2002-2008.
See CCM, Vol. III, Annexes 140, 143, 144, 146, 147, 149.

36 “(1) the herbicide is being used in accordance with

Environmental Protection Agency label
requirements for comparable use in the United
States and with Colombian laws; and

(2) the herbicide, in the manner it is being used,
does not pose unreasonable risks or adverse effects

to humans or the environment including endemic
species.” 41

2.12. On that basis, the US Secretary of State determined and

certified to Congress that the required conditions were met by

the spray mixture used in the Colombia aerial eradication

program in 2002, 2003, 2004, 2005, 2006, 2007 and 2008. 42

2.13. Colombia is reproducing in full at Annexes 53-A to 53-G

the Memoranda of Justification Concerning the Aerial

Eradication of Coca in Colombia issued by the State Department

from 2002 to 2008, together with their attachments. These

documents are publicly available on the website of the US State

Department. They were discussed in Colombia’s Counter-

Memorial and partially annexed to that pleading. 43Inexplicably,

Ecuador makes no mention whatsoever of them, or their

findings, in the Reply.

2.14. Section I of Chapter 2 of the Reply alleges that Colombia

employed (without disclosure) highly toxic glyphosate-based

                                                            
41 Omnibus Appropriation Act, 2009. Available at:
http://www.gpo.gov/fdsys/pkg/PLAW-111publ8/pdf/PLAW-111publ8.pdf
(Last visited 10 Nov. 2011); Consolidated Appropriations Act, 2010.
Available at: http://www.gpo.gov/f dsys/pkg/PLAW-111publ117/pdf/PLAW-
111publ117.pdf (Last visited 10 Nov. 2011).
42
For copies of the Memoranda, see CCM, Vol. III, Annexes 140, 143,
144, 146, 147, 149 and CR, Vol. IV, Annex 53, Memoranda of Justification
43 the United States Department of State, 2002-2008.
See CCM, Vol. III, Annexes 140, 143, 144, 146, 147, 149.the relevant Sales Registration was submitted as Annexes 33, 39

and 46 of Colombia’s Counter-Memorial and discussed in that

pleading. 46 Again, this document is nowhere mentioned in

Ecuador’s Reply. Similarly, the Reply does not refer to any of

the publicly availabl e Colombian documents or the numerous

websites that contain detailed information on the composition of

the spray mixture, publishe d since 2001 and which were

47
discussed in Colombia’s Counter-Memorial.

2.18. The formula used in the mixture has been described since

2000 in public documents issued by entities charged with

environmental control, such as the Ministry of the Environment,

and in all the audits carried out by Colombia every year on a
48
monthly basis. Likewise, the formula is described in all the

studies and documents that form part of Colombia’s
49
Environmental Management Plan.

2.19. Officials from various agen cies and entities – among

them, those charged with verifying compliance with the EMP

which includes verification of the formula used and its effects 50

– participate in field audits and monitoring. They include

officials from the General Prosecutor’s Office, the Ministry of

                                                            
46
47 CCM, para. 4.46. See also: CCM, Vol. II, Annexes: 33, 39 and 46.
48 CCM, paras. 6.5-6.10.
ER, Vol. V, Annex 132: Order 599 of the Ministry for the
Environment of 23 Dec. 1999, p. 5 : "Dilution 10,4 litres of Roundup (43,9%)
+ 13 litres of water + 0.25 of adjuvant".
49 See CR, Vol. III, Annex33: Note N° 32280 from the National
Narcotics Directorate (DNE) to the Mi nistry for the Environment enclosing
the Environmental Management Plan (EMP) of the Program for the

Eradication of Illicit Crops by AeriaSpraying with Glyphosate (PECIG),
50Nov. 2001, p. 47, Chart 2.5.
Ibid., pp. 235-236.

38the relevant Sales Registration was submitted as Annexes 33, 39

and 46 of Colombia’s Counter-Memorial and discussed in that

pleading. 46 Again, this document is nowhere mentioned in

Ecuador’s Reply. Similarly, the Reply does not refer to any of

the publicly availabl e Colombian documents or the numerous

websites that contain detailed information on the composition of

the spray mixture, publishe d since 2001 and which were

47
discussed in Colombia’s Counter-Memorial.

2.18. The formula used in the mixture has been described since

2000 in public documents issued by entities charged with

environmental control, such as the Ministry of the Environment,

and in all the audits carried out by Colombia every year on a
48
monthly basis. Likewise, the formula is described in all the

studies and documents that form part of Colombia’s
49
Environmental Management Plan.

2.19. Officials from various agen cies and entities – among

them, those charged with verifying compliance with the EMP

which includes verification of the formula used and its effects 50

– participate in field audits and monitoring. They include

officials from the General Prosecutor’s Office, the Ministry of

                                                            
46
47 CCM, para. 4.46. See also: CCM, Vol. II, Annexes: 33, 39 and 46.
48 CCM, paras. 6.5-6.10.
ER, Vol. V, Annex 132: Order 599 of the Ministry for the
Environment of 23 Dec. 1999, p. 5 : "Dilution 10,4 litres of Roundup (43,9%)
+ 13 litres of water + 0.25 of adjuvant".
49 See CR, Vol. III, Annex33: Note N° 32280 from the National
Narcotics Directorate (DNE) to the Mi nistry for the Environment enclosing
the Environmental Management Plan (EMP) of the Program for the

Eradication of Illicit Crops by AeriaSpraying with Glyphosate (PECIG),
50Nov. 2001, p. 47, Chart 2.5.
Ibid., pp. 235-236.2000 of the Commission of the Cartagena Agreement on the
52
Common Provisions on Industrial Property.

2.22. In this regard, it is apposite to refer to a statement of the

US EPA in connection with the us e of pesticides used for the

aerial spraying program in Colombia:

“Data requirements on the chemical identity and

composition of the formulated pesticide product,
may be found in 40 CFR [Code of Federal
Regulations] 158.150. The list of ingredients for a

pesticide product and the percent of each ingredient
in the formulation are cont ained in the confidential
statement of formula [CSF]. The CSF is FIFRA
[Federal Insecticide, Fungicide, and Rodenticide

Act] confidential business information (CBI) and is
entitled to treatment as trade secret or proprietary
information. Agency risk assessments do not
53
typically contain this information.”

2.23. Ecuador cannot demand th at Colombia divulge
information it does not possess, information which is covered by

trade secrecy. Disclosure of such information is in any event

unnecessary for the present case, since the formula used in the

spraying program has been widely disclosed and publicized. It

has also been the object – as a whole and in its individual

components – of a number of studies, analyses and toxicological

tests on animals, soil and wate r that have shown no adverse

effects on human or animal health or on the environment.

52                                                          
CR, Vol. VI, Annex 61: Decision N° 486 of the Commission of the
Cartagena Agreement on the Common Provisions on Industrial Property,
53ticle 260, 14 Sep. 2000.
CR, Vol. IV, Annex 54: United States Environmental Protection
Agency (EPA), Office of Pesticide Programs. Details of the 2003
Consultation for the Department of State. Use of Pesticide for Coca and
Poppy Eradication Program in Colombia, June 2003, p. 10.

402000 of the Commission of the Cartagena Agreement on the
52
Common Provisions on Industrial Property.

2.22. In this regard, it is apposite to refer to a statement of the

US EPA in connection with the us e of pesticides used for the

aerial spraying program in Colombia:

“Data requirements on the chemical identity and

composition of the formulated pesticide product,
may be found in 40 CFR [Code of Federal
Regulations] 158.150. The list of ingredients for a

pesticide product and the percent of each ingredient
in the formulation are cont ained in the confidential
statement of formula [CSF]. The CSF is FIFRA
[Federal Insecticide, Fungicide, and Rodenticide

Act] confidential business information (CBI) and is
entitled to treatment as trade secret or proprietary
information. Agency risk assessments do not
53
typically contain this information.”

2.23. Ecuador cannot demand th at Colombia divulge
information it does not possess, information which is covered by

trade secrecy. Disclosure of such information is in any event

unnecessary for the present case, since the formula used in the

spraying program has been widely disclosed and publicized. It

has also been the object – as a whole and in its individual

components – of a number of studies, analyses and toxicological

tests on animals, soil and wate r that have shown no adverse

effects on human or animal health or on the environment.

52                                                          
CR, Vol. VI, Annex 61: Decision N° 486 of the Commission of the
Cartagena Agreement on the Common Provisions on Industrial Property,
53ticle 260, 14 Sep. 2000.
CR, Vol. IV, Annex 54: United States Environmental Protection
Agency (EPA), Office of Pesticide Programs. Details of the 2003
Consultation for the Department of State. Use of Pesticide for Coca and
Poppy Eradication Program in Colombia, June 2003, p. 10.2.27. As observed by Dr Solomon in his expert report attached

to this Rejoinder, Ecuador’s arguments reveal:

“…[C]onfusion between the statements of hazard as

appear on the label of the formulated product and
the toxicity of the spray mixture. Statements such as
‘Harmful if swallowed’ on the label of the product

refer to the undiluted concentrated material in the
container and are intended for the information of
those who handle the undiluted product. These
instructions are intended for the mixers and loaders

and are not relevant to bystanders who would be
exposed to the diluted product as sprayed. These
comments also are relevant to the discussion of the

pictograms discussed in the response (Ecuador
2011, Figures 2.1 & 2.2, 2.41). By analogy, pure
alcohol is ‘dangerous if swallowed’ but, when
diluted with a mixer or in wine, it is an enjoyable
54
beverage”.

2.28. Dr Solomon adds that:

“None of the glyphosate-products used in the spray

programs for coca and poppy in Colombia present a
hazard to humans as sprayed . This is shown in the
results of toxicity tests carried out on the mixture as
sprayed in Colombia. This mixture consisted of the

formulated product, Cosmo-Flux® 411F, and water
in the proportion as loaded into the spray-aircraft.
These tests on toxicity were carried out under Good

Laboratory Practices, using standard protocols with
appropriate Quality Assurance and Quality Control.
Also included in the testing were confirmatory
analyses of the content of glyphosate in the mixture

to ensure that the values were consistent with the

54                                                          
CR, Vol. II, Annex 3: Dr K.R. Solomon, Ph.D., Expert Report of
Keith R. Solomon on Behalf of Colombia, Nov. 2011, para. 11 (hereafter
referred to as Solomon Report (2011)). The reference concerns ER,
paras. 2.19 -2-20.

422.27. As observed by Dr Solomon in his expert report attached

to this Rejoinder, Ecuador’s arguments reveal:

“…[C]onfusion between the statements of hazard as

appear on the label of the formulated product and
the toxicity of the spray mixture. Statements such as
‘Harmful if swallowed’ on the label of the product

refer to the undiluted concentrated material in the
container and are intended for the information of
those who handle the undiluted product. These
instructions are intended for the mixers and loaders

and are not relevant to bystanders who would be
exposed to the diluted product as sprayed. These
comments also are relevant to the discussion of the

pictograms discussed in the response (Ecuador
2011, Figures 2.1 & 2.2, 2.41). By analogy, pure
alcohol is ‘dangerous if swallowed’ but, when
diluted with a mixer or in wine, it is an enjoyable
54
beverage”.

2.28. Dr Solomon adds that:

“None of the glyphosate-products used in the spray

programs for coca and poppy in Colombia present a
hazard to humans as sprayed . This is shown in the
results of toxicity tests carried out on the mixture as
sprayed in Colombia. This mixture consisted of the

formulated product, Cosmo-Flux® 411F, and water
in the proportion as loaded into the spray-aircraft.
These tests on toxicity were carried out under Good

Laboratory Practices, using standard protocols with
appropriate Quality Assurance and Quality Control.
Also included in the testing were confirmatory
analyses of the content of glyphosate in the mixture

to ensure that the values were consistent with the

54                                                          
CR, Vol. II, Annex 3: Dr K.R. Solomon, Ph.D., Expert Report of
Keith R. Solomon on Behalf of Colombia, Nov. 2011, para. 11 (hereafter
referred to as Solomon Report (2011)). The reference concerns ER,
paras. 2.19 -2-20. that the observations conducted and the gathered
testimony do not afford evidence of any
repercussions in Ecuadorian territory.” 57

2.31. All Ecuador has to say about this episode in its Reply is

that “Colombia’s reliance on thes e statements is both misplaced

and disingenuous”. 58 Ecuador affirms that “Ecuador’s searches

for glyphosate residues were hopel ess exercises: they were

conducted at the wrong times a nd places” and states that

glyphosate was not found because it dissipates quickly from the
59
soil and after that it is undetectable. Significantly, what

Ecuador fails to comment on, is that the Ecuadorian Foreign

Ministry also stated that th ere had been no violation of

Ecuadorian airspace and that no evidence was found of any

repercussions of Colombia’s ae rial sprayings in Ecuadorian

territory. Further, no traces were apparently found of the

mysterious and “highly toxic” i ngredients that Ecuador alleges

formed part of the spray mixture.

2.32. The program of aerial eradication of illicit coca concerns

the territory of Colombia and has been carried out in conformity

with its laws and regulations in the regions where illicit coca

crops are located, including the regions of Nariño and Putumayo

situated along the Colombia-Ecuador border. Colombia

conducted the program in a manner that displayed the utmost

attention to any possible risks posed by the herb icide used for

human and animal health and the environment. As demonstrated

                                                            
57 CCM, Vol. II, Annex 84 (emphasis added).
58
59 ER, para. 3.28.
ER, para. 3.30.

44 that the observations conducted and the gathered
testimony do not afford evidence of any
repercussions in Ecuadorian territory.” 57

2.31. All Ecuador has to say about this episode in its Reply is

that “Colombia’s reliance on thes e statements is both misplaced

and disingenuous”. 58 Ecuador affirms that “Ecuador’s searches

for glyphosate residues were hopel ess exercises: they were

conducted at the wrong times a nd places” and states that

glyphosate was not found because it dissipates quickly from the
59
soil and after that it is undetectable. Significantly, what

Ecuador fails to comment on, is that the Ecuadorian Foreign

Ministry also stated that th ere had been no violation of

Ecuadorian airspace and that no evidence was found of any

repercussions of Colombia’s ae rial sprayings in Ecuadorian

territory. Further, no traces were apparently found of the

mysterious and “highly toxic” i ngredients that Ecuador alleges

formed part of the spray mixture.

2.32. The program of aerial eradication of illicit coca concerns

the territory of Colombia and has been carried out in conformity

with its laws and regulations in the regions where illicit coca

crops are located, including the regions of Nariño and Putumayo

situated along the Colombia-Ecuador border. Colombia

conducted the program in a manner that displayed the utmost

attention to any possible risks posed by the herb icide used for

human and animal health and the environment. As demonstrated

                                                            
57 CCM, Vol. II, Annex 84 (emphasis added).
58
59 ER, para. 3.28.
ER, para. 3.30.2.35. In addition to 44% of the formulated glyphosate-based

products, the tank mixture used for spraying is composed of 1%

Cosmo-Flux 411F adjuvant and 55% water. 66

2.36. As explained in the document dated 23 September 2011

submitted by the EPA in response to questions raised by

Colombia, and filed with this Rejoinder as Annex 55, the name

Gly-41 is an alternate bran d name for the product called

Roundup Ultra. The same product is commercialized and sold in

the United States under severa l names approved by the EPA.

When the US company Monsanto applied for registration of this

product in the US, it submitted 82 studies; a full bibliography of
67
these studies is also reproduced as part of Annex 55.

2.37. Ecuador distorts the com position of glyphosate and of

the term “glyphosate-based produc t” and creates an untenable

confusion of concepts. For instance, Ecuador states that:

“glyphosate is not the only chemical in these glyphosate-based

products …such herbicides incl ude additional chemicals known

as ‘formulants’. One class of “formulants’ is composed of

surfactants… they can be even more toxic to human health and

the environment than glyphosate itself.” 68This is simply wrong.

As noted by Dr Solomon:

                                                            
66 EM, Vol. II, Annex 15, Tenth Ar ticle. See also, CCM, paras. 4.42-
4.44.
67 CR, Vol. IV, Annex 55: Note from the Environmental Protection
Agency (EPA) to the United States Embassy in Colombia, enclosing answers

and bibliography of studies on glyphosate herbicide, 23 Sep. 2011, Answer to
68estion 4, pp. 2 - 3 and attached bibliography.
ER, para. 2.43.

462.35. In addition to 44% of the formulated glyphosate-based

products, the tank mixture used for spraying is composed of 1%

Cosmo-Flux 411F adjuvant and 55% water. 66

2.36. As explained in the document dated 23 September 2011

submitted by the EPA in response to questions raised by

Colombia, and filed with this Rejoinder as Annex 55, the name

Gly-41 is an alternate bran d name for the product called

Roundup Ultra. The same product is commercialized and sold in

the United States under severa l names approved by the EPA.

When the US company Monsanto applied for registration of this

product in the US, it submitted 82 studies; a full bibliography of
67
these studies is also reproduced as part of Annex 55.

2.37. Ecuador distorts the com position of glyphosate and of

the term “glyphosate-based produc t” and creates an untenable

confusion of concepts. For instance, Ecuador states that:

“glyphosate is not the only chemical in these glyphosate-based

products …such herbicides incl ude additional chemicals known

as ‘formulants’. One class of “formulants’ is composed of

surfactants… they can be even more toxic to human health and

the environment than glyphosate itself.” 68This is simply wrong.

As noted by Dr Solomon:

                                                            
66 EM, Vol. II, Annex 15, Tenth Ar ticle. See also, CCM, paras. 4.42-
4.44.
67 CR, Vol. IV, Annex 55: Note from the Environmental Protection
Agency (EPA) to the United States Embassy in Colombia, enclosing answers

and bibliography of studies on glyphosate herbicide, 23 Sep. 2011, Answer to
68estion 4, pp. 2 - 3 and attached bibliography.
ER, para. 2.43.2.39. As stated by the EPA in the document filed at Annex 55,

studies of this type are typi cally undertaken in order to

determine what precautionary statements should appear on

pesticide labels and are perfor med with the undiluted product

formulation. This process is explained in the following terms by

the EPA:

“[T]he precautionary statements that appear on
pesticide labels (i.e., the Signal Word, Hazards to

Humans and Domestic Animals, and First Aid
statements) are typically determined by the results
of the six acute toxicity studies performed with the

undiluted product formulation. The acute oral, acute
dermal and acute inhalation studies evaluate
systemic acute toxicity vi a the designated routes of
exposure. The primary ey e irritation and primary

skin irritation studies measure irritation or corrosion
potential, while the derm al sensitization study
evaluates the potential for allergic contact

dermatitis. With the exception of dermal
sensitization, each acute study is assigned to a
toxicity category (I to IV) based on the study

results, with I being the most toxic (or
irritating/corrosive) and IV being the least toxic (or
irritating/corrosive). The toxicity categories
determine certain precautio nary statements that
72
appear on pesticide labels (…)”.

2.40. In this case as well, the studies included the following:

acute oral toxicity, acute derm al toxicity, acute inhalation

toxicity, primary eye irritati on, primary skin irritation and
dermal sensitization. The spray formulation as a whole and

some of its individual ingredients, including Roundup SL, Fuete

72                                                          
CR, Vol. IV, Annex 55: Note from the Environmental Protection
Agency (EPA) to the United States Embassy in Colombia, enclosing answers
and bibliography of studies on glyphosate herbicide, 23 Sep. 2011, Answer to
Question 8, p. 5.

482.39. As stated by the EPA in the document filed at Annex 55,

studies of this type are typi cally undertaken in order to

determine what precautionary statements should appear on

pesticide labels and are perfor med with the undiluted product

formulation. This process is explained in the following terms by

the EPA:

“[T]he precautionary statements that appear on
pesticide labels (i.e., the Signal Word, Hazards to

Humans and Domestic Animals, and First Aid
statements) are typically determined by the results
of the six acute toxicity studies performed with the

undiluted product formulation. The acute oral, acute
dermal and acute inhalation studies evaluate
systemic acute toxicity vi a the designated routes of
exposure. The primary ey e irritation and primary

skin irritation studies measure irritation or corrosion
potential, while the derm al sensitization study
evaluates the potential for allergic contact

dermatitis. With the exception of dermal
sensitization, each acute study is assigned to a
toxicity category (I to IV) based on the study

results, with I being the most toxic (or
irritating/corrosive) and IV being the least toxic (or
irritating/corrosive). The toxicity categories
determine certain precautio nary statements that
72
appear on pesticide labels (…)”.

2.40. In this case as well, the studies included the following:

acute oral toxicity, acute derm al toxicity, acute inhalation

toxicity, primary eye irritati on, primary skin irritation and
dermal sensitization. The spray formulation as a whole and

some of its individual ingredients, including Roundup SL, Fuete

72                                                          
CR, Vol. IV, Annex 55: Note from the Environmental Protection
Agency (EPA) to the United States Embassy in Colombia, enclosing answers
and bibliography of studies on glyphosate herbicide, 23 Sep. 2011, Answer to
Question 8, p. 5.2.43. The toxicity studies that Ec uador has chosen to ignore

are highly probative on two levels : (i) they confirm that the

composition of the spray mixtur e corresponds exactly to what

Colombia has previously stated in these proceedings is the

composition of the spray mixture us ed, and (ii) they classified

the mixture as category III (mildly toxic) for eye irritation and

category IV (slightly toxic) for all the rest.

2.44. This material alone is sufficient to rebut Ecuador’s

arguments. However, the eviden ce does not end here. Indeed –

as recalled in detail in Colombia’s Counter-Memorial (and

ignored by Ecuador in its Reply) – there is no scientific evidence

of significant risks to human or animal health or the

environment due to exposure to the spray mixture used in

Colombia’s aerial eradication program. 75The studies contracted

by the US State Department and reviewed by EPA, and the

analyses conducted by the Ecuadorian Atomic Energy

Commission and independent scie ntists all reach the same

conclusion.

2.45. Notwithstanding this evidence, Colombia will address

below Ecuador’s unfounded allegations that there were

mysterious ingredients in the mixture and will show that no

significant threats are posed to human or animal health or the

environment by the spray mixture used in the spray program or

by any of its components.

75                                                          
CCM, paras. 7.10-7.15, 7.42-7.123.

502.43. The toxicity studies that Ec uador has chosen to ignore

are highly probative on two levels : (i) they confirm that the

composition of the spray mixtur e corresponds exactly to what

Colombia has previously stated in these proceedings is the

composition of the spray mixture us ed, and (ii) they classified

the mixture as category III (mildly toxic) for eye irritation and

category IV (slightly toxic) for all the rest.

2.44. This material alone is sufficient to rebut Ecuador’s

arguments. However, the eviden ce does not end here. Indeed –

as recalled in detail in Colombia’s Counter-Memorial (and

ignored by Ecuador in its Reply) – there is no scientific evidence

of significant risks to human or animal health or the

environment due to exposure to the spray mixture used in

Colombia’s aerial eradication program. 75The studies contracted

by the US State Department and reviewed by EPA, and the

analyses conducted by the Ecuadorian Atomic Energy

Commission and independent scie ntists all reach the same

conclusion.

2.45. Notwithstanding this evidence, Colombia will address

below Ecuador’s unfounded allegations that there were

mysterious ingredients in the mixture and will show that no

significant threats are posed to human or animal health or the

environment by the spray mixture used in the spray program or

by any of its components.

75                                                          
CCM, paras. 7.10-7.15, 7.42-7.123.concerning the conduct of the Program in Colombia. As

mentioned in the Counter-Memorial, the Colombian National

Health Institute has monitored health complaints arising as a

result of the program from 2002 to date and has found no causal

link between alleged exposure and the appearance of the clinical

80
symptoms complained of. Those conclusions were reached

either because it was determined that no spraying operations

were carried out in the relevant area at the time referred to in the

complaint, or because it was concluded that the health effects

resulted from causes other than exposure to the spray mixture. In

other words, even in Colombian territory, no relation between

the sprayings and any alleged damages has been established

since the beginning of the progr am to date. Instead, it was

concluded that the complaints received were mainly related to

81
the endemic health conditions of the region in question.

82
2.49. Quite apart from its use in the Galapagos Islands,

glyphosate and glyphosate-based form ulations are widely used

in Ecuador. Table 1 (opposite) lists some examples of herbicides

registered in Ecuador contai ning glyphosate as an active

ingredient. The source of this information is the Ecuadorian

counterpart of the ICA, i.e. the Agencia Ecuatoriana de

Aseguramiento de Calidad del Agro , also known as

83
Agrocalidad.

                                                            
80 CCM, para. 7.64.
81
CCM, Vol. II, Annexes 68 and 69.
82 CCM, para. 4.49.
83
The mission and strategic objectives of this governmental agency of

Ecuador are described on its website: http://www.agrocalidad.gov.ec/
agrocalidad/index.php/es/la-institucion/mision (Last visited 10 Nov. 2011).

52concerning the conduct of the Program in Colombia. As

mentioned in the Counter-Memorial, the Colombian National

Health Institute has monitored health complaints arising as a

result of the program from 2002 to date and has found no causal

link between alleged exposure and the appearance of the clinical

80
symptoms complained of. Those conclusions were reached

either because it was determined that no spraying operations

were carried out in the relevant area at the time referred to in the

complaint, or because it was concluded that the health effects

resulted from causes other than exposure to the spray mixture. In

other words, even in Colombian territory, no relation between

the sprayings and any alleged damages has been established

since the beginning of the progr am to date. Instead, it was

concluded that the complaints received were mainly related to

81
the endemic health conditions of the region in question.

82
2.49. Quite apart from its use in the Galapagos Islands,

glyphosate and glyphosate-based form ulations are widely used

in Ecuador. Table 1 (opposite) lists some examples of herbicides

registered in Ecuador contai ning glyphosate as an active

ingredient. The source of this information is the Ecuadorian

counterpart of the ICA, i.e. the Agencia Ecuatoriana de

Aseguramiento de Calidad del Agro , also known as

83
Agrocalidad.

                                                            
80 CCM, para. 7.64.
81
CCM, Vol. II, Annexes 68 and 69.
82 CCM, para. 4.49.
83
The mission and strategic objectives of this governmental agency of

Ecuador are described on its website: http://www.agrocalidad.gov.ec/
agrocalidad/index.php/es/la-institucion/mision (Last visited 10 Nov. 2011).2.51. As to Roundup SL and GLY-41, Ecuador continues to

put great stock in the hazard statements contained on the labels

of these products (and of Roundup Export), 86 as evidence that

they pose a risk to human health, animals, crops and the

environment, whilst ignoring the scientific evidence showing
87
risk to be minimal. Such an approach misrepresents the origin

and purpose of warning labels and ignores the difference

between hazard and risk.

2.52. For instance, for products registered in the United States,

these statements are based on the EPA’s assessment of the

scientific documentation filed in support of the registration of

the product. In the EPA’s own words:

“Labels of herbicide and other pesticide products

have precautionary and use restriction statements
for protection of people. In most cases the origin of
these statements for a product is based on EPA's

assessment of the scientific data and other
information supporting the registration of the
product. These data and information sources can

include toxicology studies on the active ingredient
as well as the formulated product, exposure studies
of mixers, loaders, app licators, and bystanders,
physical/chemistry studies, and incident reports.

This information is used in order to determine
potential risks to people who may be exposed to the
ingredients and applicati on material (spray, dust,

granules, etc.) prior to, dur ing, or after application.
Thus, some precautions and restrictions apply to
undiluted product and diluted spray mixture, e.g.,

restrictions that pertain to mixer/loaders versus
applicators or bystanders. Based on these risks, EPA

86                                                          
87 ER, paras. 2.19, 2.32, 2.37.
The labels are reproduced at EM, Vol. III, Annex 129 and ER,
Vol. III, Annex 28.

542.51. As to Roundup SL and GLY-41, Ecuador continues to

put great stock in the hazard statements contained on the labels

of these products (and of Roundup Export), 86 as evidence that

they pose a risk to human health, animals, crops and the

environment, whilst ignoring the scientific evidence showing
87
risk to be minimal. Such an approach misrepresents the origin

and purpose of warning labels and ignores the difference

between hazard and risk.

2.52. For instance, for products registered in the United States,

these statements are based on the EPA’s assessment of the

scientific documentation filed in support of the registration of

the product. In the EPA’s own words:

“Labels of herbicide and other pesticide products

have precautionary and use restriction statements
for protection of people. In most cases the origin of
these statements for a product is based on EPA's

assessment of the scientific data and other
information supporting the registration of the
product. These data and information sources can

include toxicology studies on the active ingredient
as well as the formulated product, exposure studies
of mixers, loaders, app licators, and bystanders,
physical/chemistry studies, and incident reports.

This information is used in order to determine
potential risks to people who may be exposed to the
ingredients and applicati on material (spray, dust,

granules, etc.) prior to, dur ing, or after application.
Thus, some precautions and restrictions apply to
undiluted product and diluted spray mixture, e.g.,

restrictions that pertain to mixer/loaders versus
applicators or bystanders. Based on these risks, EPA

86                                                          
87 ER, paras. 2.19, 2.32, 2.37.
The labels are reproduced at EM, Vol. III, Annex 129 and ER,
Vol. III, Annex 28.2.54. As noted above, from 2002 to 2008, the US Secretary of

State has specifically certified that the herbicide mixture

employed by Colombia was used in accordance with EPA label

requirements for comparable use in the United States and with

the requirements under Colombian law contained in the

Colombian Environmental Mana gement Plan for aerial

fumigation. 90

2.55. In addition to the process of consultation and review

undertaken in the United States by the EPA and the State

Department, independent scien tific evidence supports the

conclusion that commercia lly available glyphosate and

glyphosate-based formulated products have no serious ill effects

on human health, nor do they seve rely affect animals or the

environment. 91 For example, as discussed in the Counter-

Memorial, independent analyses of Colombia’s aerial sprayings

program were conducted under the au spices of an organ of the

Organization of American States (“OAS”), the Inter-American

Commission of Drug Abuse Control (“CICAD“). These

analyses culminated in two studies, which were completed in

2005 (“CICAD I”) and in 2009 (“CICAD II”). 92

                                                                                                                                
July 19, 2006); Nelson v. American Home Prods. Corp. , 93 F. Supp. 2d 954
968-969 (W.D. Mo. 2000).
90 See, for all, CR, Vol. IV, Annex 53-G: Department of State

Memorandum of Justification Concerning the Secretary of State’s 2008
Certification of Conditions Related to Aerial Eradication of Illicit Coca in
91lombia, 2008, pp. 2-3.
CCM, para. 4.47. See also: CCM, Vol. II, Annexes 96, 101; Vol. III,
Annexes 124, 125, 126, 128, 132.
92 The CICAD studies have been filed as CCM, Vol. III, Annexes 116

and 131 A-I.

562.54. As noted above, from 2002 to 2008, the US Secretary of

State has specifically certified that the herbicide mixture

employed by Colombia was used in accordance with EPA label

requirements for comparable use in the United States and with

the requirements under Colombian law contained in the

Colombian Environmental Mana gement Plan for aerial

fumigation. 90

2.55. In addition to the process of consultation and review

undertaken in the United States by the EPA and the State

Department, independent scien tific evidence supports the

conclusion that commercia lly available glyphosate and

glyphosate-based formulated products have no serious ill effects

on human health, nor do they seve rely affect animals or the

environment. 91 For example, as discussed in the Counter-

Memorial, independent analyses of Colombia’s aerial sprayings

program were conducted under the au spices of an organ of the

Organization of American States (“OAS”), the Inter-American

Commission of Drug Abuse Control (“CICAD“). These

analyses culminated in two studies, which were completed in

2005 (“CICAD I”) and in 2009 (“CICAD II”). 92

                                                                                                                                
July 19, 2006); Nelson v. American Home Prods. Corp. , 93 F. Supp. 2d 954
968-969 (W.D. Mo. 2000).
90 See, for all, CR, Vol. IV, Annex 53-G: Department of State

Memorandum of Justification Concerning the Secretary of State’s 2008
Certification of Conditions Related to Aerial Eradication of Illicit Coca in
91lombia, 2008, pp. 2-3.
CCM, para. 4.47. See also: CCM, Vol. II, Annexes 96, 101; Vol. III,
Annexes 124, 125, 126, 128, 132.
92 The CICAD studies have been filed as CCM, Vol. III, Annexes 116

and 131 A-I. the SAT would have to be from countrie95other than
the United States and Colombia.”

Dr Solomon added:

“The SAT operated independently of the U.S. and
Colombian governments (and of the State

Department contractor D yncorp). None of these
entities had input or editori al control of the reports
of the SAT, except insofar as various reports

published by the governments of Colombia and the
United States were used as references, where
appropriate.” 96

2.58. With regard to the possible risks of the herbicide to

human health, CICAD I noted that the only adverse side effect

of glyphosate that had been do cumented was a slight to
97
moderate irritation of the ey es and, possibly, the skin. This

conclusion also matches findings of the acute toxicity studies

carried out on the spray mixt ure in 2003 by an independent

laboratory contracted by the Stat e Department and reviewed by

the EPA, the conclusions reached in the Dobson Reports, and a

number of other scientific studi es showing that skin or eye

irritation may occur only in case of direct exposure to the spray

mixture or over-spray. 98 Yet, even in the case of the mixers and

                                                            
95 CR, Vol. II, Annex 10, p. 3.
96
97 Ibid., p. 4. See also, CR, Vol. II, Annex 3, para. 5.
98 CCM, Vol. III, Annex 116: CICAD I, p. 78.
See CR, Vol. II, Annex 4: Dr S. Dobson, OBE Ph.D., Response to
Scientific Papers in Annexes to Vo lume II of Ecuador’s Reply (2011) , Dec.
2011, (hereafter referred to as Dobson Report (2011)) para. 37, p. 15; CCM,
Vol. I: Appendix, Dobson Report (2009), paras. 26-29; CR, Vol. V, Annex
56: United States Environmental Protection Agency (EPA), Memorandum of

13 May 2003, Technical Review of the six acute toxicity studies on the spray
mixture for Eradication of Illicit Crops in Colombia, p. 2.

58 the SAT would have to be from countrie95other than
the United States and Colombia.”

Dr Solomon added:

“The SAT operated independently of the U.S. and
Colombian governments (and of the State

Department contractor D yncorp). None of these
entities had input or editori al control of the reports
of the SAT, except insofar as various reports

published by the governments of Colombia and the
United States were used as references, where
appropriate.” 96

2.58. With regard to the possible risks of the herbicide to

human health, CICAD I noted that the only adverse side effect

of glyphosate that had been do cumented was a slight to
97
moderate irritation of the ey es and, possibly, the skin. This

conclusion also matches findings of the acute toxicity studies

carried out on the spray mixt ure in 2003 by an independent

laboratory contracted by the Stat e Department and reviewed by

the EPA, the conclusions reached in the Dobson Reports, and a

number of other scientific studi es showing that skin or eye

irritation may occur only in case of direct exposure to the spray

mixture or over-spray. 98 Yet, even in the case of the mixers and

                                                            
95 CR, Vol. II, Annex 10, p. 3.
96
97 Ibid., p. 4. See also, CR, Vol. II, Annex 3, para. 5.
98 CCM, Vol. III, Annex 116: CICAD I, p. 78.
See CR, Vol. II, Annex 4: Dr S. Dobson, OBE Ph.D., Response to
Scientific Papers in Annexes to Vo lume II of Ecuador’s Reply (2011) , Dec.
2011, (hereafter referred to as Dobson Report (2011)) para. 37, p. 15; CCM,
Vol. I: Appendix, Dobson Report (2009), paras. 26-29; CR, Vol. V, Annex
56: United States Environmental Protection Agency (EPA), Memorandum of

13 May 2003, Technical Review of the six acute toxicity studies on the spray
mixture for Eradication of Illicit Crops in Colombia, p. 2. “...[T]o protect information that ‘contains or relates

to trade secrets or co mmercial or financial
information obtained from a person and privileged
or confidential.’”

Further, this Agency must:

“…[I]nitially protect information claimed as

confidential as well as information where the
Agency might expect a company to assert a
confidentiality claim if it knew EPA was

considering disclosure of the information. Inert
ingredients in pesticides are frequently claimed as
confidential by registrants, so the Agency routinely
102
gives inert ingredients such initial protection.”

2.61. Whatever the individual chemical components of the

spray mixture, in its 2002 analysis the EPA expressly concluded

that: “The components of the spray adjuvant, Cosmoflux 411F,

are substances with low oral and dermal toxicity that have been

approved for use in/on food by EPA and the Food and Drug
103
Administration.”

2.62. Further, as remarked by Dr Solomon in the report

submitted in this case:

“Ecuador’s Reply (Ecuador, 2011 at para. 2.49) also
discusses Cosmo-Flux 411F and claims that the

ingredients are in some way ‘secret’. This is not the
case. Despite Ecuador’s a ssertion, the ingredients

102                                                         
CR, Vol. IV, Annex 55: Note from the Environmental Protection
Agency (EPA) to the Unite d States Embassy in Bogotá, enclosing answers
and bibliography of studies on glyphosate herbicide, 23 Sep. 2011, Answer to
Question 5, p. 3.
103 CR, Vol. IV, Annex 53-A: State Department Memorandum of
Justification Concerning Determination on Health, Environmental, and Legal
Aspects of Coca Eradication in Colombia, 2002, Response from EPA

Assistant Administrator Johnson to Se cretary of State, Executive Summary,
Consultation Review of the use of pesticide for coca eradication in Colombia,
Section Findings, p. 10.

60 “...[T]o protect information that ‘contains or relates

to trade secrets or co mmercial or financial
information obtained from a person and privileged
or confidential.’”

Further, this Agency must:

“…[I]nitially protect information claimed as

confidential as well as information where the
Agency might expect a company to assert a
confidentiality claim if it knew EPA was

considering disclosure of the information. Inert
ingredients in pesticides are frequently claimed as
confidential by registrants, so the Agency routinely
102
gives inert ingredients such initial protection.”

2.61. Whatever the individual chemical components of the

spray mixture, in its 2002 analysis the EPA expressly concluded

that: “The components of the spray adjuvant, Cosmoflux 411F,

are substances with low oral and dermal toxicity that have been

approved for use in/on food by EPA and the Food and Drug
103
Administration.”

2.62. Further, as remarked by Dr Solomon in the report

submitted in this case:

“Ecuador’s Reply (Ecuador, 2011 at para. 2.49) also
discusses Cosmo-Flux 411F and claims that the

ingredients are in some way ‘secret’. This is not the
case. Despite Ecuador’s a ssertion, the ingredients

102                                                         
CR, Vol. IV, Annex 55: Note from the Environmental Protection
Agency (EPA) to the Unite d States Embassy in Bogotá, enclosing answers
and bibliography of studies on glyphosate herbicide, 23 Sep. 2011, Answer to
Question 5, p. 3.
103 CR, Vol. IV, Annex 53-A: State Department Memorandum of
Justification Concerning Determination on Health, Environmental, and Legal
Aspects of Coca Eradication in Colombia, 2002, Response from EPA

Assistant Administrator Johnson to Se cretary of State, Executive Summary,
Consultation Review of the use of pesticide for coca eradication in Colombia,
Section Findings, p. 10.possible toxic effects of the mi xture on humans. When it comes

to humans, or mammals in genera l, the conclusion is radically

different. The relevant part of the study, omitted by Ecuador but

cited in Colombia’s Counter-Memorial, expressly concluded

that: “the addition of Cosmo-Fl ux to the spray mixture did not

affect the toxicity of the glyphosate to mammals.” 109 On the

basis of the available data the final conclusion of the study was

as follows:

“[I]t is clear that potenti al exposures to glyphosate
and Cosmo-Flux as used for the eradication of coca
and poppy in Colombia do not present a risk to

human bystanders. In all cases, the margin of
exposure for the most sensitive endpoint in
laboratory animal studies with glyphosate was

greater than 100 – a conservative value often used
to account for uncertainty in risk assessments of this
type. As well, estimated worst-case exposures were

below the Reference Dose (RfD) established for
glyphosate by the USD EPA. The toxicity values
used in both of these approaches were derived from

chronic exposures where the animals were dosed
over extended time periods. They are thus
additionally protective of short and infrequent

exposures that would o ccur during the use o110
glyphosate in the eradication spray program.”

2.66. Moreover, the source of the information relied upon by

Ecuador is not correct. As stated by Dr Solomon:

“Although Cosmo-Flux 411F is added to many
agricultural pesticides to increase their efficacy, the
increase in toxicity to coca may not be a great as is

claimed in Ecuador’s Reply (Weller 2011, p. 15, see

109                                                         
CCM, Vol. III, Annex 116: CICA D I, p. 78, cited in CCM, at
110a. 4.52.
CCM, Vol. III, Annex 116: CICAD I, p. 85 (emphasis added).

62possible toxic effects of the mi xture on humans. When it comes

to humans, or mammals in genera l, the conclusion is radically

different. The relevant part of the study, omitted by Ecuador but

cited in Colombia’s Counter-Memorial, expressly concluded

that: “the addition of Cosmo-Fl ux to the spray mixture did not

affect the toxicity of the glyphosate to mammals.” 109 On the

basis of the available data the final conclusion of the study was

as follows:

“[I]t is clear that potenti al exposures to glyphosate
and Cosmo-Flux as used for the eradication of coca
and poppy in Colombia do not present a risk to

human bystanders. In all cases, the margin of
exposure for the most sensitive endpoint in
laboratory animal studies with glyphosate was

greater than 100 – a conservative value often used
to account for uncertainty in risk assessments of this
type. As well, estimated worst-case exposures were

below the Reference Dose (RfD) established for
glyphosate by the USD EPA. The toxicity values
used in both of these approaches were derived from

chronic exposures where the animals were dosed
over extended time periods. They are thus
additionally protective of short and infrequent

exposures that would o ccur during the use o110
glyphosate in the eradication spray program.”

2.66. Moreover, the source of the information relied upon by

Ecuador is not correct. As stated by Dr Solomon:

“Although Cosmo-Flux 411F is added to many
agricultural pesticides to increase their efficacy, the
increase in toxicity to coca may not be a great as is

claimed in Ecuador’s Reply (Weller 2011, p. 15, see

109                                                         
CCM, Vol. III, Annex 116: CICA D I, p. 78, cited in CCM, at
110a. 4.52.
CCM, Vol. III, Annex 116: CICAD I, p. 85 (emphasis added).2.68. Significantly, the overall conc lusions of the CICAD II

study, published in 2009 in the Journal of Toxicology and

Environmental Health stated as follows:

“Overall, the risks to sensitive wildlife and human
health from the use of glyphosate in the control of

coca (and poppy) production in Colombia are small
to negligible, especially when compared to the risks
to wildlife and humans that result from the entire

process of the production of cocaine (and heroin) in
Colombia.” 114

2.69. As will be seen, the EPA also stressed in its 2002 (and

subsequent) reviews that ther e are no risks of concern for

glyphosate or for the spray ad juvant, Cosmo-Flux 411F, and

concluded that the spray mixture used by Colombia for its aerial

coca eradication program poses no significant adverse effects

for human health. 115In particular, with regard to Cosmo-Flux

411F, the 2002 review noted as follows:

“The components of the spray adjuvant, Cosmoflux
411F, are substances with low oral and dermal

toxicity that have been approved for use in/on food
by EPA and the Food and Drug Administration.
There are no expected toxicological effects of

concern for acute (short-term) or chronic (long-

                                                            
114 CCM, Vol. III, Annex 131-A: CICAD II, p. 919.
115
See below paras. 2.89-2.92. S ee also: CR, Vol. IV, Annex 53-A,
Department of State Memorandum of Justification Concerning Determination
on Health, Environmental, and Legal Aspects of Coca Eradication in
Colombia, 2002; CR, Vol. IV, Annex 53-B, Department of State Certification
Related to Aerial Eradication in Colombia Under the Andean Counterdrug
Initiative Section of the Foreign Operations, Export Financing, and Related
Programs Appropriations Act, Division E, Consolidated Appropriation
Resolution, 2003; CR, Vol. IV, Annex 53-C, Department of State

Memorandum of Justification Concerning the Secretary of State’s 2004
Certification of Conditions Related to Aerial Eradication of Illicit Coca and
Opium Poppy in Colombia, 2004.

642.68. Significantly, the overall conc lusions of the CICAD II

study, published in 2009 in the Journal of Toxicology and

Environmental Health stated as follows:

“Overall, the risks to sensitive wildlife and human
health from the use of glyphosate in the control of

coca (and poppy) production in Colombia are small
to negligible, especially when compared to the risks
to wildlife and humans that result from the entire

process of the production of cocaine (and heroin) in
Colombia.” 114

2.69. As will be seen, the EPA also stressed in its 2002 (and

subsequent) reviews that ther e are no risks of concern for

glyphosate or for the spray ad juvant, Cosmo-Flux 411F, and

concluded that the spray mixture used by Colombia for its aerial

coca eradication program poses no significant adverse effects

for human health. 115In particular, with regard to Cosmo-Flux

411F, the 2002 review noted as follows:

“The components of the spray adjuvant, Cosmoflux
411F, are substances with low oral and dermal

toxicity that have been approved for use in/on food
by EPA and the Food and Drug Administration.
There are no expected toxicological effects of

concern for acute (short-term) or chronic (long-

                                                            
114 CCM, Vol. III, Annex 131-A: CICAD II, p. 919.
115
See below paras. 2.89-2.92. S ee also: CR, Vol. IV, Annex 53-A,
Department of State Memorandum of Justification Concerning Determination
on Health, Environmental, and Legal Aspects of Coca Eradication in
Colombia, 2002; CR, Vol. IV, Annex 53-B, Department of State Certification
Related to Aerial Eradication in Colombia Under the Andean Counterdrug
Initiative Section of the Foreign Operations, Export Financing, and Related
Programs Appropriations Act, Division E, Consolidated Appropriation
Resolution, 2003; CR, Vol. IV, Annex 53-C, Department of State

Memorandum of Justification Concerning the Secretary of State’s 2004
Certification of Conditions Related to Aerial Eradication of Illicit Coca and
Opium Poppy in Colombia, 2004.components. The published risk assessments 120 have chosen

formulations which contained POEA because this was the worst

case scenario – as POEA is the most toxic of the surfactants

used – and yet no significant adverse effects were found, except

for, in early studies, a toxicity caused by some components of

POEA for aquatic organisms in sh allow waters. As noted by Dr

Dobson, “Over time, POEA as used in pesticide formulations

has changed to reduce the presence of these more toxic

components.” 121

2.72. In this respect Dr Solomon affirms in his report filed

with this Rejoinder that:

“…Ecuador’s Reply (Ecuador 2011, at para. 2.45)
confuses the toxicity of pur e POEA with that of the

mixture as used for spraying. The complete lack of
significant oral, dermal, and inhalation toxicity of
the spray mixture (Table 1) demonstrates that the

exposures from the diluted spray are below the
threshold of toxicity.”

Dr Solomon adds further:

“POEA consists of ethoxylated tallow-amines and is

made from the natural pr oduct, tallow (animal fat).
As a result, POEA consists of a mixture of products
with differing chain of the fatty-acid “tail”, i.e. the

“blend” referred to in Ecuador’s Reply (Ecuador
2011, at para. 2.48). This is characteristic of POEA
and tallow itself. Tallow is animal fat and, despite

being a blend, is not toxic to humans. Slight
differences in chain-length have little impact on
toxicological properties and the potency of the

mixture is considered in th e toxicity tests discussed

120                                                         
See Giesy et al ., CCM, Vol. III, Annex 124. See also: CCM,
121. III, Annexes 116 (CICAD I), 125, 126, and 131 (CICAD II).
CR, Vol. II, Annex 4: Dobson Report (2011), para. 33.

66components. The published risk assessments 120 have chosen

formulations which contained POEA because this was the worst

case scenario – as POEA is the most toxic of the surfactants

used – and yet no significant adverse effects were found, except

for, in early studies, a toxicity caused by some components of

POEA for aquatic organisms in sh allow waters. As noted by Dr

Dobson, “Over time, POEA as used in pesticide formulations

has changed to reduce the presence of these more toxic

components.” 121

2.72. In this respect Dr Solomon affirms in his report filed

with this Rejoinder that:

“…Ecuador’s Reply (Ecuador 2011, at para. 2.45)
confuses the toxicity of pur e POEA with that of the

mixture as used for spraying. The complete lack of
significant oral, dermal, and inhalation toxicity of
the spray mixture (Table 1) demonstrates that the

exposures from the diluted spray are below the
threshold of toxicity.”

Dr Solomon adds further:

“POEA consists of ethoxylated tallow-amines and is

made from the natural pr oduct, tallow (animal fat).
As a result, POEA consists of a mixture of products
with differing chain of the fatty-acid “tail”, i.e. the

“blend” referred to in Ecuador’s Reply (Ecuador
2011, at para. 2.48). This is characteristic of POEA
and tallow itself. Tallow is animal fat and, despite

being a blend, is not toxic to humans. Slight
differences in chain-length have little impact on
toxicological properties and the potency of the

mixture is considered in th e toxicity tests discussed

120                                                         
See Giesy et al ., CCM, Vol. III, Annex 124. See also: CCM,
121. III, Annexes 116 (CICAD I), 125, 126, and 131 (CICAD II).
CR, Vol. II, Annex 4: Dobson Report (2011), para. 33.2.75. In any event, the fact that some of the information

regarding certain ingredients is confidential is irrelevant for

present purposes since, whatever the information that the

manufacturer sought to keep confidential, the scientific evidence

and the reports of the US State Department in consultation with

the EPA show that the spray mixture did not and does not pose

significant risks to human health, animals or the environment.

The risk assessment was based on the formulation used and

therefore would cover also Ec uador’s “unnamed ingredients”,

assuming, quod non, that any such ingredients existed.

2.76. Ecuador depicts the spray mixture used by Colombia as

an imaginary cocktail of chemical s and seeks to corroborate its

assertions with statements made by Colombia at various times.

It is thus alleged that the mixture contains, in addition to the

ingredients revealed by Colombia: dioxin, dioxane,

formaldehyde, an “anti-foaming additive” called COSMO IN D,

and a second unnamed additive, allegedly used to minimize

foaming, all of which are said to be extremely toxic for human
126
health.

2.77. As to the alleged use of di oxin, Ecuador relies on a Note

Verbale sent by Colombia to Ecuador on 14 July 2001 stating

that the spray mixture contained dioxin. 127 No reference to

dioxin is made in any of the contemporaneous documents of

different entities that describe the formula of the spray

                                                            
126
127 ER, paras. 2.57-2.61.
ER, para. 2.58. The letter is reproduced at EM, Vol. II, Annex 42.

682.75. In any event, the fact that some of the information

regarding certain ingredients is confidential is irrelevant for

present purposes since, whatever the information that the

manufacturer sought to keep confidential, the scientific evidence

and the reports of the US State Department in consultation with

the EPA show that the spray mixture did not and does not pose

significant risks to human health, animals or the environment.

The risk assessment was based on the formulation used and

therefore would cover also Ec uador’s “unnamed ingredients”,

assuming, quod non, that any such ingredients existed.

2.76. Ecuador depicts the spray mixture used by Colombia as

an imaginary cocktail of chemical s and seeks to corroborate its

assertions with statements made by Colombia at various times.

It is thus alleged that the mixture contains, in addition to the

ingredients revealed by Colombia: dioxin, dioxane,

formaldehyde, an “anti-foaming additive” called COSMO IN D,

and a second unnamed additive, allegedly used to minimize

foaming, all of which are said to be extremely toxic for human
126
health.

2.77. As to the alleged use of di oxin, Ecuador relies on a Note

Verbale sent by Colombia to Ecuador on 14 July 2001 stating

that the spray mixture contained dioxin. 127 No reference to

dioxin is made in any of the contemporaneous documents of

different entities that describe the formula of the spray

                                                            
126
127 ER, paras. 2.57-2.61.
ER, para. 2.58. The letter is reproduced at EM, Vol. II, Annex 42.Note Verbale of 14 July 2001, the quantity of dioxane present in

the spray mixture is “100 times below WHO and FAO

standards, so there is no reason for concern regarding human or
132
animal health.” Dr Dobson observes th at dioxane “would be

present in the formulation in very small amounts” and “will not

cause adverse health effects as a minor component of the
133
glyphosate spray.”

2.79. Formaldehyde was already covered in Dr Dobson’s

report filed with Colombia’s Counter-Memorial. 134There is no

evidence that this chemical is present in the mixture and

Ecuador has not produced any evidence in support of its

allegations. No reference to the use of formaldehyde in the

formula was found in the hundreds of documents by different

Colombian entities reviewed. In any event, as noted by Dr

Dobson in his first report, any presence of this component “in

low volume would not be manifest as risk.” Dr Solomon notes

in his report that the hazard from formaldehyde “was not

determined by WHO/FAO Joint Meeting on Pesticide
135
Specifications to be toxicologically significant.”

2.80. As to Ecuador’s allegation th at the spray contains an
136
“anti-foaming additive” called COSMO IN D, it would be

extremely unlikely that an anti-foaming agent would be toxic to

human and animal health. COSM O IN D is on an EPA list of

                                                            
132 EM, Vol. II, Annex 42.
133 CR, Vol. II, Annex 4: Dobson Report (2011), para. 34 .
134 CCM, Vol. I, Appendix: Dobson Report (2011), para. 20.
135
136 CR, Vol. II, Annex 3: Solomon Report, para. 20 (emphasis added).
ER, para. 2.61.

70Note Verbale of 14 July 2001, the quantity of dioxane present in

the spray mixture is “100 times below WHO and FAO

standards, so there is no reason for concern regarding human or
132
animal health.” Dr Dobson observes th at dioxane “would be

present in the formulation in very small amounts” and “will not

cause adverse health effects as a minor component of the
133
glyphosate spray.”

2.79. Formaldehyde was already covered in Dr Dobson’s

report filed with Colombia’s Counter-Memorial. 134There is no

evidence that this chemical is present in the mixture and

Ecuador has not produced any evidence in support of its

allegations. No reference to the use of formaldehyde in the

formula was found in the hundreds of documents by different

Colombian entities reviewed. In any event, as noted by Dr

Dobson in his first report, any presence of this component “in

low volume would not be manifest as risk.” Dr Solomon notes

in his report that the hazard from formaldehyde “was not

determined by WHO/FAO Joint Meeting on Pesticide
135
Specifications to be toxicologically significant.”

2.80. As to Ecuador’s allegation th at the spray contains an
136
“anti-foaming additive” called COSMO IN D, it would be

extremely unlikely that an anti-foaming agent would be toxic to

human and animal health. COSM O IN D is on an EPA list of

                                                            
132 EM, Vol. II, Annex 42.
133 CR, Vol. II, Annex 4: Dobson Report (2011), para. 34 .
134 CCM, Vol. I, Appendix: Dobson Report (2011), para. 20.
135
136 CR, Vol. II, Annex 3: Solomon Report, para. 20 (emphasis added).
ER, para. 2.61.Federal Insecticide, Fungicide and Rodicide Act (“FIFRA”),

that:

“(A) the product's composition is such as to warrant
the proposed claims for it;

(B) the product's labelling and other material

required to be submitted comply with the
requirements of FIFRA;

(C) the product will perf orm its intended function
without unreasonable a dverse effects on the

environment; and

(D) when used in accordan ce with widespread and
commonly recognized pract ice the product will not
generally cause unreasonable adverse effects on the

environment. (Note: The term "unreasonable
adverse effects on the environment" means (1) any
unreasonable risk to man or the environment, taking

into account the economic, social, and
environmental costs and benefits of the use of any
pesticide, or (2) a human dietary risk for residues

that result from a use of a pesticide in or on any
food that is inconsistent with the safety standard
under section408 of the Federal Food, Drug, and
140
Cosmetic Act.)”

2.84. Further, in case of herbicides with identical or

substantially similar chemi cal composition, only the first

manufacturer which registers a pr oduct submits toxicity studies,

while any subsequent manufactur er is exempted from this

requirement.

                                                            
140 CR, Vol. IV, Annex 55: Note from the Environmental Protection

Agency (EPA) to the Unite d States Embassy in Bogotá, enclosing answers
and bibliography of studies on glyphosate herbicide, 23 Sep. 2011, Answer to
Question 7, p. 4.

72Federal Insecticide, Fungicide and Rodicide Act (“FIFRA”),

that:

“(A) the product's composition is such as to warrant
the proposed claims for it;

(B) the product's labelling and other material

required to be submitted comply with the
requirements of FIFRA;

(C) the product will perf orm its intended function
without unreasonable a dverse effects on the

environment; and

(D) when used in accordan ce with widespread and
commonly recognized pract ice the product will not
generally cause unreasonable adverse effects on the

environment. (Note: The term "unreasonable
adverse effects on the environment" means (1) any
unreasonable risk to man or the environment, taking

into account the economic, social, and
environmental costs and benefits of the use of any
pesticide, or (2) a human dietary risk for residues

that result from a use of a pesticide in or on any
food that is inconsistent with the safety standard
under section408 of the Federal Food, Drug, and
140
Cosmetic Act.)”

2.84. Further, in case of herbicides with identical or

substantially similar chemi cal composition, only the first

manufacturer which registers a pr oduct submits toxicity studies,

while any subsequent manufactur er is exempted from this

requirement.

                                                            
140 CR, Vol. IV, Annex 55: Note from the Environmental Protection

Agency (EPA) to the Unite d States Embassy in Bogotá, enclosing answers
and bibliography of studies on glyphosate herbicide, 23 Sep. 2011, Answer to
Question 7, p. 4.toxicologically the same product and their denominations simply

correspond to the different commercial names under which the

products used in Colombia are sold.

2.88. Roundup Export was tested by the US EPA and found to

be in compliance with the EPA’ s requirements. Ecuador bases

its allegation that the product is hi ghly toxic on the fact that its

label states: “Not Registered for use in the United States of

America”. 147 However,this statement is a commercial or

marketing indication that has nothi ng to do with the toxicity of

the product. It is an indication from the manufacturer as to

whether the product is intended for domestic sale or for export.

As explained by the EPA in the document attached at Annex 55,

“Roundup Export Herbicide is the primary brand
name for the glyphosate product registered under

EPA Registration Number 524-308. This product’s
sale and use are not banned in the United States. In
1997, Monsanto voluntarily added this statement

(‘Not registered for Use in the United States of
America’) to the label of this brand name and
voluntarily chose to market this product only

outside of the United Stat es. This registration has
several alternate brand names (…). Labels with
these alternate brand names do not have the above

statement and are marketed in the United States.
EPA acknowledges the label statement is confusing
and has initiated communications with Monsanto to
revise or delete this statement.” 148

                                                            
147 ER, para. 2.19.
148
CR, Vol. IV, Annex 55: Note from the Environmental Protection
Agency (EPA) to the Unite d States Embassy in Bogotá, enclosing answers
and bibliography of studies on glyphosate herbicide, 23 Sep. 2011. Answer to
Question 6, p. 3.

74toxicologically the same product and their denominations simply

correspond to the different commercial names under which the

products used in Colombia are sold.

2.88. Roundup Export was tested by the US EPA and found to

be in compliance with the EPA’ s requirements. Ecuador bases

its allegation that the product is hi ghly toxic on the fact that its

label states: “Not Registered for use in the United States of

America”. 147 However,this statement is a commercial or

marketing indication that has nothi ng to do with the toxicity of

the product. It is an indication from the manufacturer as to

whether the product is intended for domestic sale or for export.

As explained by the EPA in the document attached at Annex 55,

“Roundup Export Herbicide is the primary brand
name for the glyphosate product registered under

EPA Registration Number 524-308. This product’s
sale and use are not banned in the United States. In
1997, Monsanto voluntarily added this statement

(‘Not registered for Use in the United States of
America’) to the label of this brand name and
voluntarily chose to market this product only

outside of the United Stat es. This registration has
several alternate brand names (…). Labels with
these alternate brand names do not have the above

statement and are marketed in the United States.
EPA acknowledges the label statement is confusing
and has initiated communications with Monsanto to
revise or delete this statement.” 148

                                                            
147 ER, para. 2.19.
148
CR, Vol. IV, Annex 55: Note from the Environmental Protection
Agency (EPA) to the Unite d States Embassy in Bogotá, enclosing answers
and bibliography of studies on glyphosate herbicide, 23 Sep. 2011. Answer to
Question 6, p. 3.2.91. Moreover, nowhere in its an alysis does the EPA state

that Roundup Export was being us ed. On the contrary, the EPA

stated as follows:

“In summary, HED concludes that:

There are no risks of concern for glyphosate, per se,
from the dermal or inhalation routes of exposure,

since toxicity is very low.

The identified components of the adjuvant
Cosmoflux 411F are not highly toxic by the oral and
dermal routes; they have been approved for use

in/on food by the Agency.
Glyphosate is not highly toxic. Based on the

conditions of glyphosate use described by DoS,
there is likely minimal exposure or concern for
acute and chronic dietary or incidental oral risks.

There is concern for acute eye toxicity because of
an inert ingredient present in the glyphosate

formulated product used to treat coca. The potential
for eye effects is primarily for mixers/loaders of the
concentrated glyphosate product , which should be

mitigated by protective eye wear which DoS states
is being used.

Due to the acute eye irritation caused by the
concentrated glyphosate product and the lack of
acute toxicity data on the tank mixture, the Agency

recommends that DoS consider using an alternate
glyphosate product in future coca and/or poppy
aerial eradication efforts.”151

2.92. This passage is strikingly different from Ecuador’s self-

serving interpretation. The EP A’s clear conclusion is that

151                                                         
See CR, Vol. IV, Annex 53-A: Department of State Memorandum of
Justification Concerning Determination on Health, Environmental, and Legal
Aspects of Coca Eradication in Colombia, 2002, Response from EPA
Assistant Administrator Johnson to Secretary of State, Consultation Review
of the use of pesticide for coca eradication in Colombia, Section Risk
Characterization, pp. 30-31 (emphasis added).

762.91. Moreover, nowhere in its an alysis does the EPA state

that Roundup Export was being us ed. On the contrary, the EPA

stated as follows:

“In summary, HED concludes that:

There are no risks of concern for glyphosate, per se,
from the dermal or inhalation routes of exposure,

since toxicity is very low.

The identified components of the adjuvant
Cosmoflux 411F are not highly toxic by the oral and
dermal routes; they have been approved for use

in/on food by the Agency.
Glyphosate is not highly toxic. Based on the

conditions of glyphosate use described by DoS,
there is likely minimal exposure or concern for
acute and chronic dietary or incidental oral risks.

There is concern for acute eye toxicity because of
an inert ingredient present in the glyphosate

formulated product used to treat coca. The potential
for eye effects is primarily for mixers/loaders of the
concentrated glyphosate product , which should be

mitigated by protective eye wear which DoS states
is being used.

Due to the acute eye irritation caused by the
concentrated glyphosate product and the lack of
acute toxicity data on the tank mixture, the Agency

recommends that DoS consider using an alternate
glyphosate product in future coca and/or poppy
aerial eradication efforts.”151

2.92. This passage is strikingly different from Ecuador’s self-

serving interpretation. The EP A’s clear conclusion is that

151                                                         
See CR, Vol. IV, Annex 53-A: Department of State Memorandum of
Justification Concerning Determination on Health, Environmental, and Legal
Aspects of Coca Eradication in Colombia, 2002, Response from EPA
Assistant Administrator Johnson to Secretary of State, Consultation Review
of the use of pesticide for coca eradication in Colombia, Section Risk
Characterization, pp. 30-31 (emphasis added).potential for acute toxicity) in future coca and/or poppy aerial
153
eradication programs.”

2.94. As to the alleged use of Roundup Ultra, Ec uador relies

on representations made by Colomb ia on two occasions: i) with

a diplomatic note addressed by the Colombian Ministry of

Foreign Affairs to its Ecuadoria n counterpart on 14 July 2001,

and ii) at a bilateral meeting with Ecuador held on 13-15
154
February 2002. On both occasions, reference was made to the

fact that the registered name of the spray formulation was

Roundup Ultra, a product manufact ured by Monsanto and that

this formulation would be repl aced in future with Roundup SL.

As noted above, Roundup Ultra ha s the same EPA Registration

Number of, inter alia, Roundup SL and Gly-41. As stated by the

EPA:

“The product that is sold under these alternate brand
names must be identical in ingredient formula

composition and labelling to the product with the
primary brand name, except the labels will have an
alternate brand name and ma y have a subset of the

approved uses of the regi stration. The registrant
may not alter the precautionary labelling of a
155
product sold under an alternate brand name.”

                                                            
153 CR, Vol. IV, Annex 53-A: Department of State Memorandum of
Justification Concerning Determination on Health, Environmental, and Legal

Aspects of Coca Eradication in Colombia, 2002, Response from EPA
Assistant Administrator Johnson to Secretary of State, Consultation Review
of the use of pesticide for coca eradication in Colombia, Section I, Sub –
section Exposure, p. 17.
154 ER, paras. 2.24-2.26.
155 CR, Vol. IV, Annex 55: Note from the Environmental Protection
Agency (EPA) to the Unite d States Embassy in Bogotá, enclosing answers

and bibliography of studies on glyphosate herbicide, 23 Sep. 2011, Answer to
Question 2, p. 2.

78potential for acute toxicity) in future coca and/or poppy aerial
153
eradication programs.”

2.94. As to the alleged use of Roundup Ultra, Ec uador relies

on representations made by Colomb ia on two occasions: i) with

a diplomatic note addressed by the Colombian Ministry of

Foreign Affairs to its Ecuadoria n counterpart on 14 July 2001,

and ii) at a bilateral meeting with Ecuador held on 13-15
154
February 2002. On both occasions, reference was made to the

fact that the registered name of the spray formulation was

Roundup Ultra, a product manufact ured by Monsanto and that

this formulation would be repl aced in future with Roundup SL.

As noted above, Roundup Ultra ha s the same EPA Registration

Number of, inter alia, Roundup SL and Gly-41. As stated by the

EPA:

“The product that is sold under these alternate brand
names must be identical in ingredient formula

composition and labelling to the product with the
primary brand name, except the labels will have an
alternate brand name and ma y have a subset of the

approved uses of the regi stration. The registrant
may not alter the precautionary labelling of a
155
product sold under an alternate brand name.”

                                                            
153 CR, Vol. IV, Annex 53-A: Department of State Memorandum of
Justification Concerning Determination on Health, Environmental, and Legal

Aspects of Coca Eradication in Colombia, 2002, Response from EPA
Assistant Administrator Johnson to Secretary of State, Consultation Review
of the use of pesticide for coca eradication in Colombia, Section I, Sub –
section Exposure, p. 17.
154 ER, paras. 2.24-2.26.
155 CR, Vol. IV, Annex 55: Note from the Environmental Protection
Agency (EPA) to the Unite d States Embassy in Bogotá, enclosing answers

and bibliography of studies on glyphosate herbicide, 23 Sep. 2011, Answer to
Question 2, p. 2.2.98. This evidence – some of which is contemporary to the

harm allegedly caused to Ecuadorian nationals as reported in the

witness statements submitted in these proceedings – disproves

Ecuador’s allegations that the mixture posed significant risks to

human and animal health or the environment. Furthermore, this

evidence also shows that – contrary to what is asserted by

Ecuador – Colombia did take into account the EPA’s

recommendation in 2002 to use an alternative glyphosate

product in the eradication program. 159

2.99. As discussed above, it is clear from the record that the

recommendation made by the US EPA in 2002 to switch to an

alternative glyphosate product was suggested as a precautionary

measure for the people exposed to direct contact with the

mixture. In the Memorandum of Justification Concerning the

Aerial Eradication of Coca and Opium Poppy in Colombia

published in December 2003, the Stat e Department specifically

stated that this recommendation “was meant as a precaution for

those persons filling spray tanks on the airplane who risked

splashing the full-strength glyphos ate into the eyes or onto the

skin.”160 The State Department added that it did “not believe that

the recommendation was intended to indicate any potential risk

to persons exposed to the spray mixture as actually applied by

                                                            
159 ER, para. 2.23.
160 CR, Vol. IV, Annex 53-B: Department of State Certification Related
to Aerial Eradication in Colombia Under the Andean Counterdrug Initiative
Section of the Foreign Operations, Export Financing, and Related Programs

Appropriations Act, Division E, Consolidated Appropriation Resolution,
2003, Report on Issues Related to the Aerial Eradication of Illicit Coca in
Colombia, Section 1. (B) The herbicid e mixture is being used in accordance
with any additional controls recommended by the EPA for this program.

802.98. This evidence – some of which is contemporary to the

harm allegedly caused to Ecuadorian nationals as reported in the

witness statements submitted in these proceedings – disproves

Ecuador’s allegations that the mixture posed significant risks to

human and animal health or the environment. Furthermore, this

evidence also shows that – contrary to what is asserted by

Ecuador – Colombia did take into account the EPA’s

recommendation in 2002 to use an alternative glyphosate

product in the eradication program. 159

2.99. As discussed above, it is clear from the record that the

recommendation made by the US EPA in 2002 to switch to an

alternative glyphosate product was suggested as a precautionary

measure for the people exposed to direct contact with the

mixture. In the Memorandum of Justification Concerning the

Aerial Eradication of Coca and Opium Poppy in Colombia

published in December 2003, the Stat e Department specifically

stated that this recommendation “was meant as a precaution for

those persons filling spray tanks on the airplane who risked

splashing the full-strength glyphos ate into the eyes or onto the

skin.”160 The State Department added that it did “not believe that

the recommendation was intended to indicate any potential risk

to persons exposed to the spray mixture as actually applied by

                                                            
159 ER, para. 2.23.
160 CR, Vol. IV, Annex 53-B: Department of State Certification Related
to Aerial Eradication in Colombia Under the Andean Counterdrug Initiative
Section of the Foreign Operations, Export Financing, and Related Programs

Appropriations Act, Division E, Consolidated Appropriation Resolution,
2003, Report on Issues Related to the Aerial Eradication of Illicit Coca in
Colombia, Section 1. (B) The herbicid e mixture is being used in accordance
with any additional controls recommended by the EPA for this program.were the individuals who mix and load it, i.e. the pilots and the

mechanics who service the airplanes that conduct the sprayings.

2.104. Third, even in the case of mixers and loaders of the
163
product, no incidents were ever reported, and any concerns

that might have existed were significantly mitigated in 2003 –
164
and not in 2005 as Ecuador alleges – when the formulation

was changed to a product having lower toxicity.

2.105. Consequently, the reported harm which Ecuador claims

its nationals have experienced following spraying episodes

cannot be caused by mere spray drift of the mixture – even

assuming (quod non) that spray drift occurred – in the course of

the aerial eradications pursued by Colombia over Colombian

territory.

2.106. While the question of spray drift will be discussed in

more detail in the following section, it should be noted here that

both the 2002 and 2003 Memoranda of Justification concluded

that the eradication program “t akes appropriate measures to

minimize off target drift”, and recognized that it was

“employing Best management Practices to minimize drift.” 165

                                                            
163 CR, Vol. IV, Annex 41-D: Audit to the Program for the Eradication

of Illicit Crops. Report on Activities, Program for the Eradication of Illicit
Crops by Aerial Spraying with Glyphosate. Audited period: 5. Nov. to
4 Dec.2004, 7 Dec. 2004, p. 14.
164 ER, para. 2.23.
165 See: Annex CR, Vol. IV, Annex 53-A: Department of State
Memorandum of Justification Concerning Determination on Health,
Environmental, and Legal Aspects of Coca Eradication in Colombia, 2002,
Response from EPA Assistant Administra tor Johnson to Secretary of State,

August 19, 2002, Sub-section VIII Spray Drift, p. 24. See also: Annex CR,
Vol. IV, Annex 53-B: Department of State Certification Related to Aerial
Eradication in Colombia Under the Andean Counterdrug Initiative Section of

82were the individuals who mix and load it, i.e. the pilots and the

mechanics who service the airplanes that conduct the sprayings.

2.104. Third, even in the case of mixers and loaders of the
163
product, no incidents were ever reported, and any concerns

that might have existed were significantly mitigated in 2003 –
164
and not in 2005 as Ecuador alleges – when the formulation

was changed to a product having lower toxicity.

2.105. Consequently, the reported harm which Ecuador claims

its nationals have experienced following spraying episodes

cannot be caused by mere spray drift of the mixture – even

assuming (quod non) that spray drift occurred – in the course of

the aerial eradications pursued by Colombia over Colombian

territory.

2.106. While the question of spray drift will be discussed in

more detail in the following section, it should be noted here that

both the 2002 and 2003 Memoranda of Justification concluded

that the eradication program “t akes appropriate measures to

minimize off target drift”, and recognized that it was

“employing Best management Practices to minimize drift.” 165

                                                            
163 CR, Vol. IV, Annex 41-D: Audit to the Program for the Eradication

of Illicit Crops. Report on Activities, Program for the Eradication of Illicit
Crops by Aerial Spraying with Glyphosate. Audited period: 5. Nov. to
4 Dec.2004, 7 Dec. 2004, p. 14.
164 ER, para. 2.23.
165 See: Annex CR, Vol. IV, Annex 53-A: Department of State
Memorandum of Justification Concerning Determination on Health,
Environmental, and Legal Aspects of Coca Eradication in Colombia, 2002,
Response from EPA Assistant Administra tor Johnson to Secretary of State,

August 19, 2002, Sub-section VIII Spray Drift, p. 24. See also: Annex CR,
Vol. IV, Annex 53-B: Department of State Certification Related to Aerial
Eradication in Colombia Under the Andean Counterdrug Initiative Section ofof harm to human and animal health and the environment is

posed by either the spray mixtur e as a whole or any of its

components.

2.109. Likewise, in the course of the implementation of the

PECIG, officials from various Colombian agencies and entities

– among them, those charged with verifying compliance with

the EMP which includes verification of the formula used and its

effects – participate in field audits and monitoring. They

include officials from the General Prosecutor’s Office, the

Ministry of the Environment, the ICA, the Anti-Narcotics Police
(“DIRAN”), the Agustín Codazzi Geographic Institute

(“IGAC”), the Institute of Meteorology and Environment

(“IDEAM”) and, when necessary, the Autonomous Regional

Corporations (“CARs”), as well as members of universities.

These audits and monitoring have consistently shown that the

spray mixture does not cause adverse effects on human health or

the environment.

2.110. In an effort to provide some credence to its accusations,

Ecuador selectively picked and chose from the information in its

possession and conveniently ignored or dismissed the studies

that run directly against its allegations. However, Ecuador’s case

falls away when it is confronted with the entirety of the record

and with the existing scientific evidence.

2.111. For all the reasons set out above, Ecuador’s allegations

that the mixture is highly toxi c and causes significant harm are

utterly misplaced and unfounded.

84of harm to human and animal health and the environment is

posed by either the spray mixtur e as a whole or any of its

components.

2.109. Likewise, in the course of the implementation of the

PECIG, officials from various Colombian agencies and entities

– among them, those charged with verifying compliance with

the EMP which includes verification of the formula used and its

effects – participate in field audits and monitoring. They

include officials from the General Prosecutor’s Office, the

Ministry of the Environment, the ICA, the Anti-Narcotics Police
(“DIRAN”), the Agustín Codazzi Geographic Institute

(“IGAC”), the Institute of Meteorology and Environment

(“IDEAM”) and, when necessary, the Autonomous Regional

Corporations (“CARs”), as well as members of universities.

These audits and monitoring have consistently shown that the

spray mixture does not cause adverse effects on human health or

the environment.

2.110. In an effort to provide some credence to its accusations,

Ecuador selectively picked and chose from the information in its

possession and conveniently ignored or dismissed the studies

that run directly against its allegations. However, Ecuador’s case

falls away when it is confronted with the entirety of the record

and with the existing scientific evidence.

2.111. For all the reasons set out above, Ecuador’s allegations

that the mixture is highly toxi c and causes significant harm are

utterly misplaced and unfounded.protective value of 4.1 g/ha s uggested by Ecuador’s expert, Dr

Weller, is not exceeded. 169

2.114. Indeed, “levels of drift downwind of the spray

applications rapidly approach zero within a few hundred metres

and are well below levels of concern for exposure to sensitive
170
areas”. According to Dr Hewitt, even Dr Giles, in his

modeling – which is flawed due to the fact that it assumes no

canopy and assumes many other counter-factual factor s so as to

maximize the expected spray drift – acknowledges that

deposition of glyphosate “fall[s] to less than 1 g/ha by 10 km
171
downwind.” This is a de minimis amount, the broad

equivalent of distributing a pinch of salt (approximately 1/5 of a

teaspoon) over an area the size of a soccer field (90 m x 120 m).

2.115. Moreover, Ecuador assumes a va riety of factors so as to

maximize the expected deposition from spray drift, whilst

ignoring a number of other releva nt variables. In order to

determine the true extent of drif t, variables that have a strong

impact in reducing drift, notably the forest canopy and terrain

elevations, need to be properly taken into account.

2.116. In responding to Ecuador’s misleading account in the

Reply of the various variables affecting drift, the relevant spray

events will be examined in the light of the following variables:

                                                            
169 ER, Vol. II, Annex 3, p. 14. See also, CR, Vol. II, Annex 4: Dobson
Report (2011), paras. 4-5, 30, 66.
170
CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
171a. 32, p. 14.
Ibid., para. 24, p. 10.

86protective value of 4.1 g/ha s uggested by Ecuador’s expert, Dr

Weller, is not exceeded. 169

2.114. Indeed, “levels of drift downwind of the spray

applications rapidly approach zero within a few hundred metres

and are well below levels of concern for exposure to sensitive
170
areas”. According to Dr Hewitt, even Dr Giles, in his

modeling – which is flawed due to the fact that it assumes no

canopy and assumes many other counter-factual factor s so as to

maximize the expected spray drift – acknowledges that

deposition of glyphosate “fall[s] to less than 1 g/ha by 10 km
171
downwind.” This is a de minimis amount, the broad

equivalent of distributing a pinch of salt (approximately 1/5 of a

teaspoon) over an area the size of a soccer field (90 m x 120 m).

2.115. Moreover, Ecuador assumes a va riety of factors so as to

maximize the expected deposition from spray drift, whilst

ignoring a number of other releva nt variables. In order to

determine the true extent of drif t, variables that have a strong

impact in reducing drift, notably the forest canopy and terrain

elevations, need to be properly taken into account.

2.116. In responding to Ecuador’s misleading account in the

Reply of the various variables affecting drift, the relevant spray

events will be examined in the light of the following variables:

                                                            
169 ER, Vol. II, Annex 3, p. 14. See also, CR, Vol. II, Annex 4: Dobson
Report (2011), paras. 4-5, 30, 66.
170
CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
171a. 32, p. 14.
Ibid., para. 24, p. 10.Putumayo and San Miguel border rivers. These elevations

similarly act as natural barriers further minimizing drift.

2.120. Likewise, Ecuador’s misleading portrayal of the

Program’s management and pilots’ training and performance, in

an attempt to magnify its hypothetical drift arguments, is also

rebutted by, among others, contemporaneous documents

furnished to Ecuador by the State Department under FOIA,
175
which Ecuador opted not to include with its Reply.

(1) FOREST CANOPY

2.121. The Ecuador-Colombia border region is tropical

rainforest with a high tree canopy, as acknowledged by

Ecuador’s own experts:

“The canopy height of the rainforest in the Ecuador-

Colombia border region is in the range of 30 to 35
metres. Emergent trees may extend even higher,
reaching 50 or even 65 metres above ground
176
(Balslev, 2010).”

Balslev provides the following photographs:

                                                            
175 See below paras. 2.171-2.202.
176
ER, Vol. II, Annex 1, p. 10.

88Putumayo and San Miguel border rivers. These elevations

similarly act as natural barriers further minimizing drift.

2.120. Likewise, Ecuador’s misleading portrayal of the

Program’s management and pilots’ training and performance, in

an attempt to magnify its hypothetical drift arguments, is also

rebutted by, among others, contemporaneous documents

furnished to Ecuador by the State Department under FOIA,
175
which Ecuador opted not to include with its Reply.

(1) FOREST CANOPY

2.121. The Ecuador-Colombia border region is tropical

rainforest with a high tree canopy, as acknowledged by

Ecuador’s own experts:

“The canopy height of the rainforest in the Ecuador-

Colombia border region is in the range of 30 to 35
metres. Emergent trees may extend even higher,
reaching 50 or even 65 metres above ground
176
(Balslev, 2010).”

Balslev provides the following photographs:

                                                            
175 See below paras. 2.171-2.202.
176
ER, Vol. II, Annex 1, p. 10.Figure 2-3 The tropical rain forest near the Colombia-Ecuador
border at its eastern extreme near Güeppi [sic] (Source: Alverson et al.
2008). 179

2.122. The modeling performed by Dr Giles in support of the

Reply ignores this clear indication that the presence of canopy

was of critical importance. All his modeling assumes no canopy.

As confirmed by Dr Hewitt in his report:

“[…] assessments by Giles of the effect of aircraft
height on spray drift have ignored the significant
canopy downwind of the spra y applications which

would effectively filter out any airborne spray drift.
It is not appropriate to model these applications with
an aircraft flying above little or no canopy when the

region includ180significant canopy and
structures.”

179                                                         
180 ER, Vol. II, Annex 4, p. 11.
CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 14, p. 6.

90Figure 2-3 The tropical rain forest near the Colombia-Ecuador
border at its eastern extreme near Güeppi [sic] (Source: Alverson et al.
2008). 179

2.122. The modeling performed by Dr Giles in support of the

Reply ignores this clear indication that the presence of canopy

was of critical importance. All his modeling assumes no canopy.

As confirmed by Dr Hewitt in his report:

“[…] assessments by Giles of the effect of aircraft
height on spray drift have ignored the significant
canopy downwind of the spra y applications which

would effectively filter out any airborne spray drift.
It is not appropriate to model these applications with
an aircraft flying above little or no canopy when the

region includ180significant canopy and
structures.”

179                                                         
180 ER, Vol. II, Annex 4, p. 11.
CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 14, p. 6.2.125. Dobson also points out in hi s report the erroneous basis

on which Ecuador’s experts built their theory on drift, given that

they ignore the presence of forest canopy, an essential feature of

the relevant area:

“In their Section 1, Menzie & Booth (2011) rely on

the modeling by Hansman & Mena (2011) and Giles
(2011) presented in the Reply of Ecuador (2011).
The paper presented by Hewitt (2011) in the
Colombian response demonstrates that the

assumptions made by Ecuador’s experts do not
apply to spraying where there is a significant forest
canopy. If the canopy is taken into account, drift is

hugely reduced and the suggested values for
deposition at distance from the spraying are reduced
by many orders of magnitude. The suggestion that
the original assessment by Menzie et al. (2009) is
183
vindicated is, therefore, erroneous.”

2.126. Moreover, the undulating terr ain of the Amazon region,

with elevations ranging between 30 and 100 metres, also acts as

natural barriers further mini mizing drift. The following

photograph (Figure 2-4) taken in Putumayo, shows terrain

undulations and the high tree canopy that characterize the area.
Clearly visible are the clearings wh ere trees have been felled to

grow coca crops, as well as the surrounding vegetation which is

unaffected following the sprayings. The natural barrier effect

afforded by the height of the trees present in the area can also be

seen:

                                                            
183 CR, Vol. II, Annex 4: Dobson Report (2011), para. 31, p. 13.

922.125. Dobson also points out in hi s report the erroneous basis

on which Ecuador’s experts built their theory on drift, given that

they ignore the presence of forest canopy, an essential feature of

the relevant area:

“In their Section 1, Menzie & Booth (2011) rely on

the modeling by Hansman & Mena (2011) and Giles
(2011) presented in the Reply of Ecuador (2011).
The paper presented by Hewitt (2011) in the
Colombian response demonstrates that the

assumptions made by Ecuador’s experts do not
apply to spraying where there is a significant forest
canopy. If the canopy is taken into account, drift is

hugely reduced and the suggested values for
deposition at distance from the spraying are reduced
by many orders of magnitude. The suggestion that
the original assessment by Menzie et al. (2009) is
183
vindicated is, therefore, erroneous.”

2.126. Moreover, the undulating terr ain of the Amazon region,

with elevations ranging between 30 and 100 metres, also acts as

natural barriers further mini mizing drift. The following

photograph (Figure 2-4) taken in Putumayo, shows terrain

undulations and the high tree canopy that characterize the area.
Clearly visible are the clearings wh ere trees have been felled to

grow coca crops, as well as the surrounding vegetation which is

unaffected following the sprayings. The natural barrier effect

afforded by the height of the trees present in the area can also be

seen:

                                                            
183 CR, Vol. II, Annex 4: Dobson Report (2011), para. 31, p. 13.Figure 2-5 Putumayo River and Coembí confluence.

Figure 2-6 Putumayo River, Puerto Ospina – Güepi segment.

94Figure 2-5 Putumayo River and Coembí confluence.

Figure 2-6 Putumayo River, Puerto Ospina – Güepi segment.that the mean wind speeds are in the order of between 1 m/sec
188
and 2 m/sec, i.e., 3.6-7.2 km/h.

2.130. Ecuador analysed the spray data provided by the United

States’ State Department, by ge nerating a sub-set of spray

events comprised within 10 km of the border. However, as

clearly stated by Dr Hewitt in CICAD II, at a speed of 333 km/h

(207 mi/h) and “an RH [relative humidity] of 90% which is

more typical of the conditions that occur in the Nariño and

Putumayo areas in the SW part of Colombia,” “the majority of

the active ingredient (>90%) deposits within 100 metres of the
189
swath edge.” There is no question of significant deposition

susceptible of causing damage, as a result of drift, since at 300

metres from the edge of the sp ray swath, the deposition rate is

less than 3.7 g/ha, and levels of drift “rapidly approach zero

within a few hundred meters and are well below levels of
190
concern for exposure to sensitive areas”. By way of contrast,

the level of concern for amphibians, the most sensitive animal

species according to Ecuador, is 1,368 g/ha for deposition over

water 15cm deep; and between 36 and 1,958 g/ha for various

crops. 191

2.131. On this basis the sub-set of spray events comprised

within 10 km of the border is both extravagant and irrelevant for
                                                            
188
CR, Vol. II, Annex 19: Institute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate Characterization of The Nariño
and Putumayo Border Zone With Ecuador , 7 Dec. 2011, Vol. II pp. 702,
706-730.
189 CCM, Vol. III, Annex 131-B, p. 925.
190 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 32, p. 14.
191
Ibid., para. 8, p. 5; CCM, Vol. III, Annex 131-B, p. 927.

96that the mean wind speeds are in the order of between 1 m/sec
188
and 2 m/sec, i.e., 3.6-7.2 km/h.

2.130. Ecuador analysed the spray data provided by the United

States’ State Department, by ge nerating a sub-set of spray

events comprised within 10 km of the border. However, as

clearly stated by Dr Hewitt in CICAD II, at a speed of 333 km/h

(207 mi/h) and “an RH [relative humidity] of 90% which is

more typical of the conditions that occur in the Nariño and

Putumayo areas in the SW part of Colombia,” “the majority of

the active ingredient (>90%) deposits within 100 metres of the
189
swath edge.” There is no question of significant deposition

susceptible of causing damage, as a result of drift, since at 300

metres from the edge of the sp ray swath, the deposition rate is

less than 3.7 g/ha, and levels of drift “rapidly approach zero

within a few hundred meters and are well below levels of
190
concern for exposure to sensitive areas”. By way of contrast,

the level of concern for amphibians, the most sensitive animal

species according to Ecuador, is 1,368 g/ha for deposition over

water 15cm deep; and between 36 and 1,958 g/ha for various

crops. 191

2.131. On this basis the sub-set of spray events comprised

within 10 km of the border is both extravagant and irrelevant for
                                                            
188
CR, Vol. II, Annex 19: Institute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate Characterization of The Nariño
and Putumayo Border Zone With Ecuador , 7 Dec. 2011, Vol. II pp. 702,
706-730.
189 CCM, Vol. III, Annex 131-B, p. 925.
190 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 32, p. 14.
191
Ibid., para. 8, p. 5; CCM, Vol. III, Annex 131-B, p. 927.2.133. In the years 2003, 2004, 2006 and 2007, there were no
197
spray events with speeds of over 333 km/h (207 mph). For

each of the other years, 2000-2002 and 2005, Colombia

requested Dr Hewitt to run the AGDISP model used by both

Hewitt and Giles, in order to model drift and resulting

deposition for the spray event with the highest recorded speed

closest to the border or the rive r bank on the Ecuadorian side of

the border. 198

199
2.134. In 2000, there were 4 such spray events. The event

with the highest speed was 209.72 mph, which took place at an

altitude of 42.76 metres above ground level. The distance to the

river bank on the Ecuadorian si de of the border was 1,225

metres. The event closest to the border of the fastest events

within the relevant area ha d a speed of 209.45 mph, and took

place at an altitude of 51.33 metr es above ground level. The

distance to the river bank on the Ecuadorian side of the border
200
for that event was 1,153 metres. In both cases the spray events

are thus more than 1,000 metres from the Ecuadorian territory.

However, as Dr Hewitt states, the levels of deposit downwind
201
“rapidly approach zero w ithin a few hundred meters.” As

such, there could have been only minimal deposition resulting

197                                                         
CR, Vol. II, Annex 5: IMA Report (2011), Table 3, p. 6.
198 Certain records showed values of zero in the fields for application
rate (Spray Rate or Volume, depending on the year). However, in the interest
of completeness, for those records that showed values of zero, Colombia will
use 23.65 l/ha (6.25 gal/ha), which is the parameter of the EMP, instead of

the 21.65 l/ha (5.7 gal/ha) average (S ee below para. 2.211), for purposes of
drift and deposit calculations.
199 CR, Vol. II, Annex 5: IMA Report (2011), Table 3, p. 6.
200 Ibid., Table 5, p. 8.
201 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),

para. 32, p. 14.

982.133. In the years 2003, 2004, 2006 and 2007, there were no
197
spray events with speeds of over 333 km/h (207 mph). For

each of the other years, 2000-2002 and 2005, Colombia

requested Dr Hewitt to run the AGDISP model used by both

Hewitt and Giles, in order to model drift and resulting

deposition for the spray event with the highest recorded speed

closest to the border or the rive r bank on the Ecuadorian side of

the border. 198

199
2.134. In 2000, there were 4 such spray events. The event

with the highest speed was 209.72 mph, which took place at an

altitude of 42.76 metres above ground level. The distance to the

river bank on the Ecuadorian si de of the border was 1,225

metres. The event closest to the border of the fastest events

within the relevant area ha d a speed of 209.45 mph, and took

place at an altitude of 51.33 metr es above ground level. The

distance to the river bank on the Ecuadorian side of the border
200
for that event was 1,153 metres. In both cases the spray events

are thus more than 1,000 metres from the Ecuadorian territory.

However, as Dr Hewitt states, the levels of deposit downwind
201
“rapidly approach zero w ithin a few hundred meters.” As

such, there could have been only minimal deposition resulting

197                                                         
CR, Vol. II, Annex 5: IMA Report (2011), Table 3, p. 6.
198 Certain records showed values of zero in the fields for application
rate (Spray Rate or Volume, depending on the year). However, in the interest
of completeness, for those records that showed values of zero, Colombia will
use 23.65 l/ha (6.25 gal/ha), which is the parameter of the EMP, instead of

the 21.65 l/ha (5.7 gal/ha) average (S ee below para. 2.211), for purposes of
drift and deposit calculations.
199 CR, Vol. II, Annex 5: IMA Report (2011), Table 3, p. 6.
200 Ibid., Table 5, p. 8.
201 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),

para. 32, p. 14.2.136. In 2002, the spray data from the US State Department
207
shows 203 events above 333 km/h (207 mph). The highest

recorded speed was 242.9 mph, with an altitude of 50.4 metres

above ground level. The distan ce to the river bank on the

Ecuadorian side of the border was 807 metres. Likewise, the

event closest to the border of the fastest events was at a speed of

207.1 mph, at an altitude of 40.71 metres above ground level.

The distance to the river bank on the Ecuadorian side of the

border was 153 metres. 208 Dr Hewitt modeled these events and

estimated deposition values of 0.76 g/ha and 0.70 g/ha,

respectively. 209 In the circumstances, there was no significant

deposition of spray mixture in Ecuadorian territory as a result of

drift.

2.137. In 2005, there were 128 ev ents above 333 km/h (207
210
mph). The highest speed was 224.6 mph, which was the case

for two events; of these, the highe st was at an a ltitude of 43.97

metres above ground level, at a distance of 683 metres from the

river bank on the Ecuadorian side of the border. Likewise, the

event closest to the border of th e fastest events took place at a

recorded speed of 211.7 mph, at an altitude of 50.68 metres

above ground level. The distan ce to the river bank on the

Ecuadorian side of the border was 277 metres. 211Dr Hewitt

modeled these events and esti mated deposition values of

207                                                         
CR, Vol. II, Annex 5: IMA Report (2011), Table 3, p. 6.
208 Ibid., Table 5, p. 8.
209 CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 15 and 17.
210 CR, Vol. II, Annex 5: IMA Report (2011), Table 3, p. 6.
211
Ibid., Table 5, p. 8.

1002.136. In 2002, the spray data from the US State Department
207
shows 203 events above 333 km/h (207 mph). The highest

recorded speed was 242.9 mph, with an altitude of 50.4 metres

above ground level. The distan ce to the river bank on the

Ecuadorian side of the border was 807 metres. Likewise, the

event closest to the border of the fastest events was at a speed of

207.1 mph, at an altitude of 40.71 metres above ground level.

The distance to the river bank on the Ecuadorian side of the

border was 153 metres. 208 Dr Hewitt modeled these events and

estimated deposition values of 0.76 g/ha and 0.70 g/ha,

respectively. 209 In the circumstances, there was no significant

deposition of spray mixture in Ecuadorian territory as a result of

drift.

2.137. In 2005, there were 128 ev ents above 333 km/h (207
210
mph). The highest speed was 224.6 mph, which was the case

for two events; of these, the highe st was at an a ltitude of 43.97

metres above ground level, at a distance of 683 metres from the

river bank on the Ecuadorian side of the border. Likewise, the

event closest to the border of th e fastest events took place at a

recorded speed of 211.7 mph, at an altitude of 50.68 metres

above ground level. The distan ce to the river bank on the

Ecuadorian side of the border was 277 metres. 211Dr Hewitt

modeled these events and esti mated deposition values of

207                                                         
CR, Vol. II, Annex 5: IMA Report (2011), Table 3, p. 6.
208 Ibid., Table 5, p. 8.
209 CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 15 and 17.
210 CR, Vol. II, Annex 5: IMA Report (2011), Table 3, p. 6.
211
Ibid., Table 5, p. 8.produce greater dispersion in the atmosphere as noted through

stability classes, and hence with greater dilution there can be
217
lower deposition at far-field distances.” That observation is

corroborated by the results of the modeling of spray events with

high speeds set out above, in al l of which deposition in Ecuador

was insignificant.

2.140. Furthermore, the basis on which Ecuador purportedly

supports its dramatic depiction of the incidence of aircraft speed

on drift is erroneous, given that it ignores variables that must be

factored in when accounting for that incidence, such as the

existence of canopy surrounding and downwind of the spray
218
application swath, among others. All the fastest and closest

spray events described above took place at altitudes ranging

between 36 and 50 metres above ground level.

(b) Height of spraying

2.141. As in the case of speed, height is but one of a series of

variables or factors that need to be jointly taken into account,
PARAMETER
together with other variables, including the presence of canopy,

wind conditions, relative humid ity, etc., for purposes of

calculating drift and deposition.

2.142. As shown above, for instance, canopy acts as a natural

barrier to drift; further, the typical relative humidity levels

characteristic of the border area results in >90% of the spray

                                                            
217 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 31, p. 13.
218
See above paras. 2.122-2.127.

102produce greater dispersion in the atmosphere as noted through

stability classes, and hence with greater dilution there can be
217
lower deposition at far-field distances.” That observation is

corroborated by the results of the modeling of spray events with

high speeds set out above, in al l of which deposition in Ecuador

was insignificant.

2.140. Furthermore, the basis on which Ecuador purportedly

supports its dramatic depiction of the incidence of aircraft speed

on drift is erroneous, given that it ignores variables that must be

factored in when accounting for that incidence, such as the

existence of canopy surrounding and downwind of the spray
218
application swath, among others. All the fastest and closest

spray events described above took place at altitudes ranging

between 36 and 50 metres above ground level.

(b) Height of spraying

2.141. As in the case of speed, height is but one of a series of

variables or factors that need to be jointly taken into account,
PARAMETER
together with other variables, including the presence of canopy,

wind conditions, relative humid ity, etc., for purposes of

calculating drift and deposition.

2.142. As shown above, for instance, canopy acts as a natural

barrier to drift; further, the typical relative humidity levels

characteristic of the border area results in >90% of the spray

                                                            
217 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 31, p. 13.
218
See above paras. 2.122-2.127.2.145. Thus, 50 metres is the general rule, with which Colombia

has complied (in 86% of spray even ts in the relevant area), as

corroborated by the spray data provided by the State
224
Department. Even in Ecuador’s anal ysis of a much broader

(and not relevant) set of data, it is acknowledged that the 50m
225
general rule was observed in 83% of the spray events.

2.146. The EMP clearly and expressly allows pilots to fly above

50 metres, without any explicit limit, in orde r to avoid obstacles

present in the targeted plots. These obstacles not only include

man-made traps devised by drug traffickers such as attaching

cables between scattered tall tree s within the plot so as to
226
endanger the aircraft; the trees themselves, left within the

plots by growers so as to impair crop detection from above and

to prevent the planes from descending over the plots to carry out

the sprayings, as shown in Figure 2-7, often prove to be

obstacles since, as Ecuador ac knowledges, average tree canopy

in the Ecuador-Colombia border area ranges between 30-35

metres, with emergent trees gr owing as high as 50 or even

65 metres. 227

                                                            
224 CR, Vol. II, Annex 5: IMA Report (2011), Table 8, p. 12.
225 ER, Vol. I, Annex 1, p. 19.
226 ER, Vol. IV, Annex 117, paras. 4, 6.
227
ER, paras. 2.112, 2.114; ER, Vol. II, Annex 1, p. 10.

1042.145. Thus, 50 metres is the general rule, with which Colombia

has complied (in 86% of spray even ts in the relevant area), as

corroborated by the spray data provided by the State
224
Department. Even in Ecuador’s anal ysis of a much broader

(and not relevant) set of data, it is acknowledged that the 50m
225
general rule was observed in 83% of the spray events.

2.146. The EMP clearly and expressly allows pilots to fly above

50 metres, without any explicit limit, in orde r to avoid obstacles

present in the targeted plots. These obstacles not only include

man-made traps devised by drug traffickers such as attaching

cables between scattered tall tree s within the plot so as to
226
endanger the aircraft; the trees themselves, left within the

plots by growers so as to impair crop detection from above and

to prevent the planes from descending over the plots to carry out

the sprayings, as shown in Figure 2-7, often prove to be

obstacles since, as Ecuador ac knowledges, average tree canopy

in the Ecuador-Colombia border area ranges between 30-35

metres, with emergent trees gr owing as high as 50 or even

65 metres. 227

                                                            
224 CR, Vol. II, Annex 5: IMA Report (2011), Table 8, p. 12.
225 ER, Vol. I, Annex 1, p. 19.
226 ER, Vol. IV, Annex 117, paras. 4, 6.
227
ER, paras. 2.112, 2.114; ER, Vol. II, Annex 1, p. 10.above 77 metres, and those spray events were, moreover,

conducted at speeds ranging between 134 and 172 mph, i.e.,

substantially below the maximu m speed modeled by Dr Hewitt

in CICAD II, i.e. 333 km/h (207 mph). Accordingly, for this

reason and those set out below, th ese spray events did not result

in increased drift likely to cau se significant deposition in

Ecuadorian territory. On the cont rary, as Colombia will show,

deposition values were insignificant.

2.148. Colombia requested Dr Hewitt to run the AGDISP

model, used by both Hewitt and Giles, in order to analyse drift

and deposition of the spray event with the highest recorded

altitude above ground level closest to the border or the river

bank on the Ecuadorian side of the border. 230

231
2.149. In 2000, there were 4 spray events above 77 metres.

The highest of such events was at an altitude of 160.26 metres

above ground level. The distance to the border was 947 metres.

The event closest to the border of the highest events within the

relevant area was at an alti tude of 142 metres above ground
232
level. The distance to the border was 922 metres. In both

cases the spray events are close to 1,000 metres from the border.

Dr Hewitt confirmed the conclusion that any deposition would

have been insignificant afte r modeling these events; he

230                                                         
Certain records showed values of zero in the fields for application
rate (Spray Rate or Volume, depending on the year). However, in the interest
of completeness, for those records that showed values of zero, Colombia will
use 23.65 l/ha (6.25 gal/ha), which is the parameter of the EMP, instead of
the 21.65 l/ha (5.7 gal/ha) average (s ee below para. 2.211), for purposes of
drift and deposit calculations.
231
232 CR, Vol. II, Annex 5: IMA Report (2011), Table 8, p. 12.
Ibid., Table 10, p. 14.

106above 77 metres, and those spray events were, moreover,

conducted at speeds ranging between 134 and 172 mph, i.e.,

substantially below the maximu m speed modeled by Dr Hewitt

in CICAD II, i.e. 333 km/h (207 mph). Accordingly, for this

reason and those set out below, th ese spray events did not result

in increased drift likely to cau se significant deposition in

Ecuadorian territory. On the cont rary, as Colombia will show,

deposition values were insignificant.

2.148. Colombia requested Dr Hewitt to run the AGDISP

model, used by both Hewitt and Giles, in order to analyse drift

and deposition of the spray event with the highest recorded

altitude above ground level closest to the border or the river

bank on the Ecuadorian side of the border. 230

231
2.149. In 2000, there were 4 spray events above 77 metres.

The highest of such events was at an altitude of 160.26 metres

above ground level. The distance to the border was 947 metres.

The event closest to the border of the highest events within the

relevant area was at an alti tude of 142 metres above ground
232
level. The distance to the border was 922 metres. In both

cases the spray events are close to 1,000 metres from the border.

Dr Hewitt confirmed the conclusion that any deposition would

have been insignificant afte r modeling these events; he

230                                                         
Certain records showed values of zero in the fields for application
rate (Spray Rate or Volume, depending on the year). However, in the interest
of completeness, for those records that showed values of zero, Colombia will
use 23.65 l/ha (6.25 gal/ha), which is the parameter of the EMP, instead of
the 21.65 l/ha (5.7 gal/ha) average (s ee below para. 2.211), for purposes of
drift and deposit calculations.
231
232 CR, Vol. II, Annex 5: IMA Report (2011), Table 8, p. 12.
Ibid., Table 10, p. 14. 238
Ecuadorian side of the border was 479 metres. Dr Hewitt

modeled these events and esti mated deposition values of

1.66g/ha and 1.59 g/ha, respectively, 239 which are insignificant

and therefore could not have re sulted in the damages alleged by

Ecuador.

2.152. In 2003, there were no spray events over 77 metres. 240

2.153. In 2004, there was 1 such spray event. 241 It was at an

altitude of 138.28 metres above gr ound level. The distance to
242
the border was 209 metres. Dr Hewitt modeled this event and
243
estimated a deposition amount of 1.15 g/ha. Therefore, there

could have been no significant deposition of the spray mixture

as a result of drift in Ecuadorian territory.

244
2.154. In 2005, 4 spray events were above 77 metres. The

highest event was at an altitude of 107.87 metres above ground

level. The distance to the rive r bank on the Ecuadorian side of

the border was 704 metres. Likewi se, the event closest to the

border of the highest events ha d an altitude of 95.62 metres

above ground level. The dist ance to the border was 464
245
metres. In both cases the spray events were beyond 400

metres from the border, and as Dr Hewitt states, the levels of

                                                            
238
239 CR, Vol. II, Annex 5: IMA Report (2011), p. Table 10, p. 14.
CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 3 and 4.
240 CR, Vol. II, Annex 5: IMA Report (2011), Table 8, p. 12.
241 Ibid.
242
243 Ibid., Table 10, p. 14.
CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, row 12.
244 CR, Vol. II, Annex 5: IMA Report (2011), Table 8, p. 12.
245 Ibid., Table 10, p. 14.

108 238
Ecuadorian side of the border was 479 metres. Dr Hewitt

modeled these events and esti mated deposition values of

1.66g/ha and 1.59 g/ha, respectively, 239 which are insignificant

and therefore could not have re sulted in the damages alleged by

Ecuador.

2.152. In 2003, there were no spray events over 77 metres. 240

2.153. In 2004, there was 1 such spray event. 241 It was at an

altitude of 138.28 metres above gr ound level. The distance to
242
the border was 209 metres. Dr Hewitt modeled this event and
243
estimated a deposition amount of 1.15 g/ha. Therefore, there

could have been no significant deposition of the spray mixture

as a result of drift in Ecuadorian territory.

244
2.154. In 2005, 4 spray events were above 77 metres. The

highest event was at an altitude of 107.87 metres above ground

level. The distance to the rive r bank on the Ecuadorian side of

the border was 704 metres. Likewi se, the event closest to the

border of the highest events ha d an altitude of 95.62 metres

above ground level. The dist ance to the border was 464
245
metres. In both cases the spray events were beyond 400

metres from the border, and as Dr Hewitt states, the levels of

                                                            
238
239 CR, Vol. II, Annex 5: IMA Report (2011), p. Table 10, p. 14.
CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 3 and 4.
240 CR, Vol. II, Annex 5: IMA Report (2011), Table 8, p. 12.
241 Ibid.
242
243 Ibid., Table 10, p. 14.
CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, row 12.
244 CR, Vol. II, Annex 5: IMA Report (2011), Table 8, p. 12.
245 Ibid., Table 10, p. 14.Indeed, Dr Hewitt modeled these events and estimated
253
deposition values of 1.17 g/ha and 0.94 g/ha, respectively.

2.157. In conclusion, all of these amounts, ranging between

0.25 and 1.66 g/ha, are below the level of concern for sensitive

animal and plant species. I ndeed, the level of concern for

amphibians, the most sensitive animal species according to

Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for
254
various crops, even the over-protec tive value of 4.1 g/ha
255
suggested by Ecuador’s expert, Dr Weller, is not exceeded.

This explains why Ecuador has failed to provide any evidence in
support of its baseless claims.

2.158. Ecuador states that “[t]he data generated by the spray
planes and obtained from the U.S. State Department show that

Colombia’s violation of bot h altitude and speed limits

simultaneously has been a common occurrence.” 256 Ecuador

bases this assertion on the basis of its anal ysis of spray events

within a much broader – and not relevant – area and using

altitudes that are not those foreseen by the Program’s EMP.

2.159. This approach is flawed and misleading. As shown

above, only 51 spray events (1.2%) in the relevant area are

above 77 metres, i.e., as per the EMP 50-metre general rule

except for obstacles, in this case, accounting for safe passage

253                                                         
CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
254Table of Model Results, rows 11 and 14.
CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 8, p. 5; CCM, Vol. III, Annex 131-B, p. 927.
255 ER, Vol. II, Annex 3, p. 14. See also, CR, Vol. II, Annex 4: Dobson
Report (2011), paras. 4-5, 30, 66.
256 ER, para. 2.107.

110Indeed, Dr Hewitt modeled these events and estimated
253
deposition values of 1.17 g/ha and 0.94 g/ha, respectively.

2.157. In conclusion, all of these amounts, ranging between

0.25 and 1.66 g/ha, are below the level of concern for sensitive

animal and plant species. I ndeed, the level of concern for

amphibians, the most sensitive animal species according to

Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for
254
various crops, even the over-protec tive value of 4.1 g/ha
255
suggested by Ecuador’s expert, Dr Weller, is not exceeded.

This explains why Ecuador has failed to provide any evidence in
support of its baseless claims.

2.158. Ecuador states that “[t]he data generated by the spray
planes and obtained from the U.S. State Department show that

Colombia’s violation of bot h altitude and speed limits

simultaneously has been a common occurrence.” 256 Ecuador

bases this assertion on the basis of its anal ysis of spray events

within a much broader – and not relevant – area and using

altitudes that are not those foreseen by the Program’s EMP.

2.159. This approach is flawed and misleading. As shown

above, only 51 spray events (1.2%) in the relevant area are

above 77 metres, i.e., as per the EMP 50-metre general rule

except for obstacles, in this case, accounting for safe passage

253                                                         
CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
254Table of Model Results, rows 11 and 14.
CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 8, p. 5; CCM, Vol. III, Annex 131-B, p. 927.
255 ER, Vol. II, Annex 3, p. 14. See also, CR, Vol. II, Annex 4: Dobson
Report (2011), paras. 4-5, 30, 66.
256 ER, para. 2.107.large stretch (some 109 miles, i.e., 176 kilometres) of the border

between Ecuador and Colombia in the region of Sucumbíos and

Putumayo, and it does so showing the entirety of the spray

events in the eight year peri od from 2000 to 2008. Figure 2.6 in

the Reply likewise shows the same stretch of border, this time

showing the spray events colour coded by altitude.

2.162. The effect of depicting the spray events in this fashion is

to create near solid blocks of co lour. This is especially so given

that the ground tracks of the individual spray lines are not

depicted to scale, but rather use a thicker line. These figures

show spray events over a period of some eight years, at a scale

and resolution such that the depiction is meaningless.

2.163. Figures 2.13 and 2.14 in the Reply, which purport to

show the alleged distance of the spray events adjacent to the

border, follow the same approac h, depicting the entirety of the

spray events within 10km of the border over the entire eight year

period. However, compounding the misleading character of the

figures, Ecuador in addition depicts shaded bands which purport

to show the distance from the nearest spray line.

2.164. The way in which Ecuador has represented this data is

calculated to mislead. Rather th an merely showing concentric

circles showing the boundary of 1 km, 2 km, 3 km, 5 km, 7 km

and 10 km from the nearest spray event in Colombian territory,

Ecuador has chosen to colour th ese bands in shades of red of

decreasing intensity. It is to be emphasised that these figures do

not indicate deposition rates.

112large stretch (some 109 miles, i.e., 176 kilometres) of the border

between Ecuador and Colombia in the region of Sucumbíos and

Putumayo, and it does so showing the entirety of the spray

events in the eight year peri od from 2000 to 2008. Figure 2.6 in

the Reply likewise shows the same stretch of border, this time

showing the spray events colour coded by altitude.

2.162. The effect of depicting the spray events in this fashion is

to create near solid blocks of co lour. This is especially so given

that the ground tracks of the individual spray lines are not

depicted to scale, but rather use a thicker line. These figures

show spray events over a period of some eight years, at a scale

and resolution such that the depiction is meaningless.

2.163. Figures 2.13 and 2.14 in the Reply, which purport to

show the alleged distance of the spray events adjacent to the

border, follow the same approac h, depicting the entirety of the

spray events within 10km of the border over the entire eight year

period. However, compounding the misleading character of the

figures, Ecuador in addition depicts shaded bands which purport

to show the distance from the nearest spray line.

2.164. The way in which Ecuador has represented this data is

calculated to mislead. Rather th an merely showing concentric

circles showing the boundary of 1 km, 2 km, 3 km, 5 km, 7 km

and 10 km from the nearest spray event in Colombian territory,

Ecuador has chosen to colour th ese bands in shades of red of

decreasing intensity. It is to be emphasised that these figures do

not indicate deposition rates.coca control and glyphosate formulations and adjuvants, which
263
formed part of CICAD II.

2.167. Additionally, the fact of use of the aircraft was

mentioned in documents which Ec uador itself annexed to its

Memorial, including the EMP approved by the Colombian
264
Ministry of the Environment in 2001, and the 2002 United

States State Department “Repor t on Issues Related to Aerial
265
Eradication of Illicit Coca in Colombia”.

2.168. In sum, Colombia has at no point sought to conceal the

use of different types of aircraft, nor did it claim that the AT-802

was the only aircraft ever used.

2.169. What is dispositive for the present case is that, as noted,

the 2009 CICAD II study relating to drift took into account the

speeds of the three aircraft in order to model drift and
266
deposition. Furthermore, as shown above, drift modeling of

spray events by Hewitt filed with this Rejoinder as Annex 2

includes modeling of the fastest speeds at which spraying took

place in flights flown by the fastest of the three aircraft. As

explained by Dr Hewitt, the speeds of the three aircraft would

not result in the “dramatic impact” relating to droplet size

alleged by Ecuador, as further expl ained in the relevant section

below. 267 Ecuador’s arguments with regard to the specific

                                                            
263 CCM, Vol. III, Annex 131-C, p. 930.
264 EM, Vol. II, Annex 15.
265 EM, Vol. III, Annex 144.
266 CCM, Vol. III, Annex 131-B, p. 923.
267
See below paras. 2.202-2.209 and CR, Vol. II, Annex 1: Hewitt
Report – Response to Giles (2011), p. 13.

114coca control and glyphosate formulations and adjuvants, which
263
formed part of CICAD II.

2.167. Additionally, the fact of use of the aircraft was

mentioned in documents which Ec uador itself annexed to its

Memorial, including the EMP approved by the Colombian
264
Ministry of the Environment in 2001, and the 2002 United

States State Department “Repor t on Issues Related to Aerial
265
Eradication of Illicit Coca in Colombia”.

2.168. In sum, Colombia has at no point sought to conceal the

use of different types of aircraft, nor did it claim that the AT-802

was the only aircraft ever used.

2.169. What is dispositive for the present case is that, as noted,

the 2009 CICAD II study relating to drift took into account the

speeds of the three aircraft in order to model drift and
266
deposition. Furthermore, as shown above, drift modeling of

spray events by Hewitt filed with this Rejoinder as Annex 2

includes modeling of the fastest speeds at which spraying took

place in flights flown by the fastest of the three aircraft. As

explained by Dr Hewitt, the speeds of the three aircraft would

not result in the “dramatic impact” relating to droplet size

alleged by Ecuador, as further expl ained in the relevant section

below. 267 Ecuador’s arguments with regard to the specific

                                                            
263 CCM, Vol. III, Annex 131-C, p. 930.
264 EM, Vol. II, Annex 15.
265 EM, Vol. III, Annex 144.
266 CCM, Vol. III, Annex 131-B, p. 923.
267
See below paras. 2.202-2.209 and CR, Vol. II, Annex 1: Hewitt
Report – Response to Giles (2011), p. 13.by contemporary documents a nd evaluations, they are

competent, experienced and disciplined professionals.

2.173. With regard to pilot training, the following certification

from the United States’ Embassy in Bogota describes the

rigorous tests and continuous ev aluations to which they are

subjected:

“In reply to your kind reque st, we inform you that
the fixed-wing pilots enga ged in our program for
eradication of illicit crops have to take the Apart

(Annual Proficiency and Read iness Test). This test
includes, besides the basic aerial skills, the aerial
operations tasks and the CRM (Crew Resource
Management).

The assessment criteria are established based on

knowledge of the ATM (Aircrew Training Manual).
The test is developed and designed to keep an
optimal training and performance level and to

standardize the technical pr ocedures used by spray
pilots.

Besides the aforementioned test, a skill test is
applied without prior notice at least once a year.

Likewise, an annual evaluation of spraying accuracy
has been implemented to ensure that pilots keep

their capacity to apply the chemical correctly from
the aircraft. This is an evaluation carried out in a
simulated and controlled environment with the

highest criterion of real scenarios.
Additionally, every six months, training on the

Environmental Management Plan is given. During
this training, required parameters for optimal and
environmentally safe application are reviewed.

With the training to the pilots group and its

corresponding tests, a greater awareness of the

116by contemporary documents a nd evaluations, they are

competent, experienced and disciplined professionals.

2.173. With regard to pilot training, the following certification

from the United States’ Embassy in Bogota describes the

rigorous tests and continuous ev aluations to which they are

subjected:

“In reply to your kind reque st, we inform you that
the fixed-wing pilots enga ged in our program for
eradication of illicit crops have to take the Apart

(Annual Proficiency and Read iness Test). This test
includes, besides the basic aerial skills, the aerial
operations tasks and the CRM (Crew Resource
Management).

The assessment criteria are established based on

knowledge of the ATM (Aircrew Training Manual).
The test is developed and designed to keep an
optimal training and performance level and to

standardize the technical pr ocedures used by spray
pilots.

Besides the aforementioned test, a skill test is
applied without prior notice at least once a year.

Likewise, an annual evaluation of spraying accuracy
has been implemented to ensure that pilots keep

their capacity to apply the chemical correctly from
the aircraft. This is an evaluation carried out in a
simulated and controlled environment with the

highest criterion of real scenarios.
Additionally, every six months, training on the

Environmental Management Plan is given. During
this training, required parameters for optimal and
environmentally safe application are reviewed.

With the training to the pilots group and its

corresponding tests, a greater awareness of the “…. ‘expansion of [aerial spraying] operations’
during the 1990s ‘brought with it associated

problems in Colombian contract pilot capability’,
and expressed concern about their ‘lack of
experience’. The State Department cited as a
particular problem the fact that ‘management’ had

failed to ‘adequately deal with the pilots ( sic) lack
of discipline”274

2.176. This fragmented quotation completely distorts the

content of the two documents.

2.177. First of all, the Memorandum of 4 July 1996 refers to the

specific observations pertaining to one month in a single year

(June 1996), and not to “the 1990s” as Ecuador claims. What

the Memorandum of 4 July 1996 actually states is the following:

“The expansion of operat ions detailed in the

Operations Planning para graph, has brought with it
associated problems in Colombian contract pilot
capability.

(…)

Operation Planning: … The push by the CNP to
increase the overall effectiveness of the counter
narcotics effort has resulted in their call to evolve or

improve employment tactics and expand operations.
These new concepts of operation have in some cases
caused serious difficulties because the concepts

have not fully addressed T-65 275rational
capabilities and limitations.”

2.178. The Memorandum of July 1996, instead of pointing out

deficiencies in the Program’s execution, or referring to the

274                                                         
ER, para. 2.124, quoting ER, Vol. III, Annexes 34 and 35.
275 CR, Vol. IV, Annex 48: Memorandum from Peter P. Trent,
INL/RM/ASD, PSC Bogota, to Gr ant Harden, INL/RM/ASD, COR,
Document G 16, 4 July 1996, pp. 1-2.

118 “…. ‘expansion of [aerial spraying] operations’
during the 1990s ‘brought with it associated

problems in Colombian contract pilot capability’,
and expressed concern about their ‘lack of
experience’. The State Department cited as a
particular problem the fact that ‘management’ had

failed to ‘adequately deal with the pilots ( sic) lack
of discipline”274

2.176. This fragmented quotation completely distorts the

content of the two documents.

2.177. First of all, the Memorandum of 4 July 1996 refers to the

specific observations pertaining to one month in a single year

(June 1996), and not to “the 1990s” as Ecuador claims. What

the Memorandum of 4 July 1996 actually states is the following:

“The expansion of operat ions detailed in the

Operations Planning para graph, has brought with it
associated problems in Colombian contract pilot
capability.

(…)

Operation Planning: … The push by the CNP to
increase the overall effectiveness of the counter
narcotics effort has resulted in their call to evolve or

improve employment tactics and expand operations.
These new concepts of operation have in some cases
caused serious difficulties because the concepts

have not fully addressed T-65 275rational
capabilities and limitations.”

2.178. The Memorandum of July 1996, instead of pointing out

deficiencies in the Program’s execution, or referring to the

274                                                         
ER, para. 2.124, quoting ER, Vol. III, Annexes 34 and 35.
275 CR, Vol. IV, Annex 48: Memorandum from Peter P. Trent,
INL/RM/ASD, PSC Bogota, to Gr ant Harden, INL/RM/ASD, COR,
Document G 16, 4 July 1996, pp. 1-2. OV-10 training. This apparent lack of discipline is
singularly the most dangerous safety of flight issue
277
in the OV-10 program.”

2.180. Ecuador chose simply to delete the word “apparent”

from the last sentence, linking it to another partial quote from

Annex 38, a document from August 1997, in order to claim that

the alleged “lack of discipline” mentioned in the 1996 document

was demonstrated by the latter. The passage from Annex 38

refers to a specific situation wi th regard to spraying in the

province of Caquetá, in August 1997, an area far distant from

Putumayo and Nariño. The complete passage reads as follows:

“Despite the fact the site experienced shortages in
personnel during the month, the Contractor was able

to satisfy mission requirements through creative
scheduling. All aspects of readiness were performed
in an outstanding manner, with the exception of the

performance of some of the spray pilots. Recent
verification of a series of complaints by local
farmers in the Caquetá Department of Colombia

provided clear examples that some spray pilots were
using poor judgment. This, combined with
unacceptable techniques resulted in collateral
damage to legitimate crops and pastures. The

overall damage to the image of the program this
month by these pilots was significant.” 278

2.181. The event took place three years prior to the start of the

spraying operations in the area close to the border with Ecuador.

Moreover, in that same passage of Annex 38, the State

Department acknowledged that the contractor had complied with

all the mission requirements and that all aspects concerning

277                                                         
ER, Vol. III, Annex 36.
278 ER, Vol. III, Annex 38 (emphasis added).

120 OV-10 training. This apparent lack of discipline is
singularly the most dangerous safety of flight issue
277
in the OV-10 program.”

2.180. Ecuador chose simply to delete the word “apparent”

from the last sentence, linking it to another partial quote from

Annex 38, a document from August 1997, in order to claim that

the alleged “lack of discipline” mentioned in the 1996 document

was demonstrated by the latter. The passage from Annex 38

refers to a specific situation wi th regard to spraying in the

province of Caquetá, in August 1997, an area far distant from

Putumayo and Nariño. The complete passage reads as follows:

“Despite the fact the site experienced shortages in
personnel during the month, the Contractor was able

to satisfy mission requirements through creative
scheduling. All aspects of readiness were performed
in an outstanding manner, with the exception of the

performance of some of the spray pilots. Recent
verification of a series of complaints by local
farmers in the Caquetá Department of Colombia

provided clear examples that some spray pilots were
using poor judgment. This, combined with
unacceptable techniques resulted in collateral
damage to legitimate crops and pastures. The

overall damage to the image of the program this
month by these pilots was significant.” 278

2.181. The event took place three years prior to the start of the

spraying operations in the area close to the border with Ecuador.

Moreover, in that same passage of Annex 38, the State

Department acknowledged that the contractor had complied with

all the mission requirements and that all aspects concerning

277                                                         
ER, Vol. III, Annex 36.
278 ER, Vol. III, Annex 38 (emphasis added). contributed to the OV-10 incident.” 281(Emphasis

added)

2.185. The State Department’s assessment begins by

recognising the contractor’s emphasis on efficiency. The rating

was “satisfactory”, instead of “excellent” for two reasons that

both referred to a technical and isolated incident with an OV-10

in May 1999, in the Larandia FOL (in the province of Caquetá).

It was not, by any means, a ge neralised situation throughout the

Program as Ecuador attempts to portray it.

2.186. It is also clear that the observations from the State

Department relating to the speci fic OV-10 incident in Caquetá

(again, not Nariño or Putumayo), were immediately attended to

by the contractor, as a Memora ndum of the same month (May

1999) states:

“…in Colombia, an OV-10D had a gear-up

controlled impact with the ground after take off.
The cause of this mishap has been investigated and
the appropriate countermeasures have been

implemented. One area of concern, which surfaced
as a result of this mishap, was the new Tri-Max fire
extinguishing system whic h was not in service due

to problems with system charging and missing
operating instructions. Thes e problems have also
been resolved.” 282

2.187. In any event, Ecuador also fails to explain how this

incident involving an aircraft in Colombian territory far from the

                                                            
281 ER, Vol. III, Annex 39: Memorandum to Dyncorp PSD Manager

282m INL/RM/AD Stephen H. Harris, COR, Monthly Evaluation, May 1999.
CR, Vol. IV, Annex 49: Memorandum from INL/AD Safety –
George C. Arzente to INL/AD Opera tions – Paul O’sullivan on Award Fee
Input, Document J-24, 16 June 1998.

122 contributed to the OV-10 incident.” 281(Emphasis

added)

2.185. The State Department’s assessment begins by

recognising the contractor’s emphasis on efficiency. The rating

was “satisfactory”, instead of “excellent” for two reasons that

both referred to a technical and isolated incident with an OV-10

in May 1999, in the Larandia FOL (in the province of Caquetá).

It was not, by any means, a ge neralised situation throughout the

Program as Ecuador attempts to portray it.

2.186. It is also clear that the observations from the State

Department relating to the speci fic OV-10 incident in Caquetá

(again, not Nariño or Putumayo), were immediately attended to

by the contractor, as a Memora ndum of the same month (May

1999) states:

“…in Colombia, an OV-10D had a gear-up

controlled impact with the ground after take off.
The cause of this mishap has been investigated and
the appropriate countermeasures have been

implemented. One area of concern, which surfaced
as a result of this mishap, was the new Tri-Max fire
extinguishing system whic h was not in service due

to problems with system charging and missing
operating instructions. Thes e problems have also
been resolved.” 282

2.187. In any event, Ecuador also fails to explain how this

incident involving an aircraft in Colombian territory far from the

                                                            
281 ER, Vol. III, Annex 39: Memorandum to Dyncorp PSD Manager

282m INL/RM/AD Stephen H. Harris, COR, Monthly Evaluation, May 1999.
CR, Vol. IV, Annex 49: Memorandum from INL/AD Safety –
George C. Arzente to INL/AD Opera tions – Paul O’sullivan on Award Fee
Input, Document J-24, 16 June 1998.2.190. However, in the Executive Summary of the same

document, the importance and success of the operations

conducted in Colombia, as well as the quality of all the

personnel involved, are highlighted as follows:

“General conclusions indicate a well-motivated
interested workforce who believe and understand
the mission of the Air Wing in Colombia. The

quality of the personnel is outstanding and the
success of the operations in Colombia can be
attributed to them.” 285

2.191. Paragraph 2.131 of Ecuador’s Reply begins by stating,

without any evidence, that the contractor “apparently” did not

implement the observations on safety made by the State

Department 11 months earlier, in March 2000. Ecuador goes on

to include a quote extracted from the document submitted as

Annex 51 to its Reply, an evaluation from January 2001,

claiming that the State Depart ment complained about the

“constant” need “to remind spray p ilots of what to avoid, for

example villages, etc.” 286 In fact, Annex 51 does not contain

any such sentence. In any event, it is difficult to see how the

fact that pilots are encouraged and reminded to comply with all

safety measures in the exercise of their functions can be

regarded as in any way extraordinary or objectionable – still less

relevant to the present case.

                                                            
285
ER, Vol. III, Annex 40, p. 1. Complete version found in Original
286exes CD.
ER, Vol. III, Annex 51, no page mentioned, in Original Annexes
CD.

1242.190. However, in the Executive Summary of the same

document, the importance and success of the operations

conducted in Colombia, as well as the quality of all the

personnel involved, are highlighted as follows:

“General conclusions indicate a well-motivated
interested workforce who believe and understand
the mission of the Air Wing in Colombia. The

quality of the personnel is outstanding and the
success of the operations in Colombia can be
attributed to them.” 285

2.191. Paragraph 2.131 of Ecuador’s Reply begins by stating,

without any evidence, that the contractor “apparently” did not

implement the observations on safety made by the State

Department 11 months earlier, in March 2000. Ecuador goes on

to include a quote extracted from the document submitted as

Annex 51 to its Reply, an evaluation from January 2001,

claiming that the State Depart ment complained about the

“constant” need “to remind spray p ilots of what to avoid, for

example villages, etc.” 286 In fact, Annex 51 does not contain

any such sentence. In any event, it is difficult to see how the

fact that pilots are encouraged and reminded to comply with all

safety measures in the exercise of their functions can be

regarded as in any way extraordinary or objectionable – still less

relevant to the present case.

                                                            
285
ER, Vol. III, Annex 40, p. 1. Complete version found in Original
286exes CD.
ER, Vol. III, Annex 51, no page mentioned, in Original Annexes
CD.2.195. Ecuador refers to certain observations made to the

contractor by the State Depa rtment in March 2002, but again

takes them out of context. The first part of paragraph 2.132 of

the Ecuadorian Reply reads as follows: “In March 2002, the

State Department criticized the ‘systemic failure in following of

aircraft operational procedures’ and complained about the ‘lack
290
of importance placed on the safety program.’”

2.196. However, the complete text reads as follows:

“The contractor failed to notify the Advisor Staff of
two major engine problems in the T-65 program, the
staff was notified two days after the event when the
PNC was looking for replacement engines. These

engine problems were a major cost impact on the
program; they affected T-65 eradication operations
and reflect a systemic failure in following aircraft

operational procedures. There was no safety'
investigation performed nor a CIR completed on the
T-65 engine problems that were found this month,

this reflects a lack of importance placed on the
safety program of the T-65 operation by the
contractor.” 291

2.197. From this evaluation, referring solely to the month of

March 2002, it is evident that the State Department was alluding

to a specific incident relating to problems with the engines of the

T-65 aircraft, and the fact that the matter had not been

investigated sufficiently speedily. Ecuador fails to explain how a

failure in the timely reporting of two damaged engines could

have affected it or how it relates to the subject-matter of the

present case.

290                                                         
ER, Vol. III, Annex 44, p. 5, in Original Annexes CD.
291 Ibid. (Emphasis added)

1262.195. Ecuador refers to certain observations made to the

contractor by the State Depa rtment in March 2002, but again

takes them out of context. The first part of paragraph 2.132 of

the Ecuadorian Reply reads as follows: “In March 2002, the

State Department criticized the ‘systemic failure in following of

aircraft operational procedures’ and complained about the ‘lack
290
of importance placed on the safety program.’”

2.196. However, the complete text reads as follows:

“The contractor failed to notify the Advisor Staff of
two major engine problems in the T-65 program, the
staff was notified two days after the event when the
PNC was looking for replacement engines. These

engine problems were a major cost impact on the
program; they affected T-65 eradication operations
and reflect a systemic failure in following aircraft

operational procedures. There was no safety'
investigation performed nor a CIR completed on the
T-65 engine problems that were found this month,

this reflects a lack of importance placed on the
safety program of the T-65 operation by the
contractor.” 291

2.197. From this evaluation, referring solely to the month of

March 2002, it is evident that the State Department was alluding

to a specific incident relating to problems with the engines of the

T-65 aircraft, and the fact that the matter had not been

investigated sufficiently speedily. Ecuador fails to explain how a

failure in the timely reporting of two damaged engines could

have affected it or how it relates to the subject-matter of the

present case.

290                                                         
ER, Vol. III, Annex 44, p. 5, in Original Annexes CD.
291 Ibid. (Emphasis added)relation to the operations of Dyncorp. Those reports and

evaluations were generally highly positive and complimentary.

As such Ecuador presents only a distorted account of the true

situation. Further, not only does Ecuador fail to substantiate any

of its unwarranted conclusions on the basis of the State

Department’s observations as to Dyncorp’s operations and the

Program, but there is no causa l link between these minor

isolated criticisms of the opera tions and the supposedly adverse

effects allegedly caused to Ecuador by spray drift.

2.201. In conclusion, the evidence relied upon by Ecuador in

support of its allegations with re gard to pilot performance and

management of the Program is fragmented, taken out of context

and distorted. It pre-dates and does not even refer to spraying

operations in the border area. The conclusions it seeks to draw

are falsified by contemporaneous documents from the same

sources, sources which Ecuador has in its possession and chose

not to submit or analyse.

(3) D ROPLET SIZE

2.202. According to Ecuador, Colombia agrees that, in addition

to aircraft speed and height of the spray release, droplet size
294
“significantly contribute[s] to drift”. What Colombia stated

was that drift is contingent on, among other factors, “the initial
295
size of the spray droplets.”

294                                                         
ER, para. 2.134.
295 CCM, para. 4.68.

128relation to the operations of Dyncorp. Those reports and

evaluations were generally highly positive and complimentary.

As such Ecuador presents only a distorted account of the true

situation. Further, not only does Ecuador fail to substantiate any

of its unwarranted conclusions on the basis of the State

Department’s observations as to Dyncorp’s operations and the

Program, but there is no causa l link between these minor

isolated criticisms of the opera tions and the supposedly adverse

effects allegedly caused to Ecuador by spray drift.

2.201. In conclusion, the evidence relied upon by Ecuador in

support of its allegations with re gard to pilot performance and

management of the Program is fragmented, taken out of context

and distorted. It pre-dates and does not even refer to spraying

operations in the border area. The conclusions it seeks to draw

are falsified by contemporaneous documents from the same

sources, sources which Ecuador has in its possession and chose

not to submit or analyse.

(3) D ROPLET SIZE

2.202. According to Ecuador, Colombia agrees that, in addition

to aircraft speed and height of the spray release, droplet size
294
“significantly contribute[s] to drift”. What Colombia stated

was that drift is contingent on, among other factors, “the initial
295
size of the spray droplets.”

294                                                         
ER, para. 2.134.
295 CCM, para. 4.68.km/h (207 mph). This means that in all of these spray events,

i.e., 90.9% of the total, median droplet size would have been

larger than 128 µm. Indeed, 3,317 (84.7%) of the spray events

were slower than 296 km/h (184 m ph), resulting in droplet size

larger than 173 µm. Furthermore, 1,627 (41.5%) were slower

than 259 km/h (160 mph), the lowest speed modeled by Dr

Hewitt for CICAD II. For these, droplet size would be larger

than 219 µm. Thus, a very high percentage of the droplet sizes
of the spray events in the relevant area are substantially larger

than 150 µm, at the high end of the range of average diameter

commonly involved in applications of pesticides to tree canopy

foliage. In any case, the remaining 9.1% of spray events were

also modeled by Dr Hewitt and the resulting deposition rates

were insignificant. 298

2.206. Ecuador states that “a full 50 per cent of the droplets are

even smaller than the 128-140 µm median size.” 299 This is not

true. First of all, Dr Hewitt in his CICAD II report did not state

that 128-140 µm was the median size; he only compared median

droplet sizes resulting from m odeling of the tank mixture (128

µm) and glyphosate alone (140 µm) at the highest speed 333

km/h (207mph). What he did conclude was that at an aircraft

speed of 333 km/h (207 mph), the droplet size of the tank

mixture was 128 µm; at 259 km/h (160 mph) the droplet size of

the tank mixture was 219 µm.

                                                            
298 See above paras. 2.134-2.139.
299 ER, para. 2.136.

130km/h (207 mph). This means that in all of these spray events,

i.e., 90.9% of the total, median droplet size would have been

larger than 128 µm. Indeed, 3,317 (84.7%) of the spray events

were slower than 296 km/h (184 m ph), resulting in droplet size

larger than 173 µm. Furthermore, 1,627 (41.5%) were slower

than 259 km/h (160 mph), the lowest speed modeled by Dr

Hewitt for CICAD II. For these, droplet size would be larger

than 219 µm. Thus, a very high percentage of the droplet sizes
of the spray events in the relevant area are substantially larger

than 150 µm, at the high end of the range of average diameter

commonly involved in applications of pesticides to tree canopy

foliage. In any case, the remaining 9.1% of spray events were

also modeled by Dr Hewitt and the resulting deposition rates

were insignificant. 298

2.206. Ecuador states that “a full 50 per cent of the droplets are

even smaller than the 128-140 µm median size.” 299 This is not

true. First of all, Dr Hewitt in his CICAD II report did not state

that 128-140 µm was the median size; he only compared median

droplet sizes resulting from m odeling of the tank mixture (128

µm) and glyphosate alone (140 µm) at the highest speed 333

km/h (207mph). What he did conclude was that at an aircraft

speed of 333 km/h (207 mph), the droplet size of the tank

mixture was 128 µm; at 259 km/h (160 mph) the droplet size of

the tank mixture was 219 µm.

                                                            
298 See above paras. 2.134-2.139.
299 ER, para. 2.136. air. The effect of evaporation is due to the loss of
water, which is important because even the most

concentrated tank mixture included approximately
50% by volume of water. This means that at least
half of the droplet volume could potentially be lost
through evaporation.” 301

2.209. Lastly, as explained by Dr Hewitt, the operative principle

is that even when there is a greater dispersion in the atmosphere,

with greater dilution there is lo wer deposition – i.e., below the

levels of concern for sensitive areas – at far-field distances. 302

(4) APPLICATION RATE

2.210. At the outset, it should be noted that Dr Giles’

conclusions with regard to application rates in Colombia’s

PECIG are based on erroneous assumptions. As explained by Dr

Hewitt:

“Giles suggests that the use rate of sprays applied in
PECIG is higher than assessed in the Hewitt et al
(2009) paper. On page 25 of his report, a table is
presented showing application rates of 10.4 L/ha as

assumed by Hewitt et al (2009) compared to various
higher rates between 20 and 28 L/ha. Application
rates for sprays applied by aircraft can be described

by the total application volume rate (which includes
everything in the tank mixt ure – i.e. the carrier,
which is usually water, plus the formulated pesticide
product plus any adjuva nts) and by the active

ingredient application rate. The formulated pesticide
product usually includes both the active ingredient
(glyphosate in this case) a nd various inert materials

used to optimize delivery/ mixing. Different rates

                                                            
301 CCM, Vol. III, Annex 131-B, pp. 925-926 (emphasis added).
302 CR, Vol. II Annex 1: Hewitt Re port – Response to Giles (2011),
para. 23, p. 10. Cf. Ibid, para. 31, p. 13.

132 air. The effect of evaporation is due to the loss of
water, which is important because even the most

concentrated tank mixture included approximately
50% by volume of water. This means that at least
half of the droplet volume could potentially be lost
through evaporation.” 301

2.209. Lastly, as explained by Dr Hewitt, the operative principle

is that even when there is a greater dispersion in the atmosphere,

with greater dilution there is lo wer deposition – i.e., below the

levels of concern for sensitive areas – at far-field distances. 302

(4) APPLICATION RATE

2.210. At the outset, it should be noted that Dr Giles’

conclusions with regard to application rates in Colombia’s

PECIG are based on erroneous assumptions. As explained by Dr

Hewitt:

“Giles suggests that the use rate of sprays applied in
PECIG is higher than assessed in the Hewitt et al
(2009) paper. On page 25 of his report, a table is
presented showing application rates of 10.4 L/ha as

assumed by Hewitt et al (2009) compared to various
higher rates between 20 and 28 L/ha. Application
rates for sprays applied by aircraft can be described

by the total application volume rate (which includes
everything in the tank mixt ure – i.e. the carrier,
which is usually water, plus the formulated pesticide
product plus any adjuva nts) and by the active

ingredient application rate. The formulated pesticide
product usually includes both the active ingredient
(glyphosate in this case) a nd various inert materials

used to optimize delivery/ mixing. Different rates

                                                            
301 CCM, Vol. III, Annex 131-B, pp. 925-926 (emphasis added).
302 CR, Vol. II Annex 1: Hewitt Re port – Response to Giles (2011),
para. 23, p. 10. Cf. Ibid, para. 31, p. 13. changed for the same active ingredient rate, there
will be little or no difference in drift from
applications such as those in PECIG. Hence the

Hewitt et al (2009) paper is not in error in its
calculations of spray drift levels for using a spray
volume rate of 10.4 L/ha rather than 23.65 L/ha or

any other value cited from PECIG sources, because
the active ingredient rate range was correct for the
operational uses.” 303

2.211. Notwithstanding this necessary clarif ication, Dr Giles

acknowledges that “the actual valu es, are in the range of 23.65
304
l/ha [6.25 gal/ha] based on the flight path data.” Indeed, that

data shows that for the 2,435 spray events in the relevant area

that recorded a value for appl ication rate (excluding 2000, 2001

and 2004, as Ecuador did), the average was in fact 22.67 l/ha
305
(5.98 gal/ha).

2.212. Out of all the spray events in the relevant area for which

application rates were recorde d, 1,522 were at or below 23.65

l/ha. Of the 913 spray events that recorded application rates

exceeding the 23.65 l/ha figure, 552 (60.5%) did so by a margin

of only 5%, i.e., up to 24.83 l/ha. Not a single event exceeded it

by more than 20%. 306 It should be recalled that, in any case, the

presence of trees or foliage surrounding and downwind of the

spray application swath acts as an effective barrier to filter out

307
drift of spray.

                                                            
303 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 18, p. 8.
304 ER, Vol. II, Annex 2, p. 24.
305 CR, Vol. II, Annex 5: IMA Report (2011), para. 6.7, p. 16.
306
307 Ibid., Table 11, p. 15.
See above paras. 2.122-2.127.

134 changed for the same active ingredient rate, there
will be little or no difference in drift from
applications such as those in PECIG. Hence the

Hewitt et al (2009) paper is not in error in its
calculations of spray drift levels for using a spray
volume rate of 10.4 L/ha rather than 23.65 L/ha or

any other value cited from PECIG sources, because
the active ingredient rate range was correct for the
operational uses.” 303

2.211. Notwithstanding this necessary clarif ication, Dr Giles

acknowledges that “the actual valu es, are in the range of 23.65
304
l/ha [6.25 gal/ha] based on the flight path data.” Indeed, that

data shows that for the 2,435 spray events in the relevant area

that recorded a value for appl ication rate (excluding 2000, 2001

and 2004, as Ecuador did), the average was in fact 22.67 l/ha
305
(5.98 gal/ha).

2.212. Out of all the spray events in the relevant area for which

application rates were recorde d, 1,522 were at or below 23.65

l/ha. Of the 913 spray events that recorded application rates

exceeding the 23.65 l/ha figure, 552 (60.5%) did so by a margin

of only 5%, i.e., up to 24.83 l/ha. Not a single event exceeded it

by more than 20%. 306 It should be recalled that, in any case, the

presence of trees or foliage surrounding and downwind of the

spray application swath acts as an effective barrier to filter out

307
drift of spray.

                                                            
303 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 18, p. 8.
304 ER, Vol. II, Annex 2, p. 24.
305 CR, Vol. II, Annex 5: IMA Report (2011), para. 6.7, p. 16.
306
307 Ibid., Table 11, p. 15.
See above paras. 2.122-2.127.conclusion after modeling these events and estimated deposition
311
values of 0.31 g/ha and 0.23 g/ha, respectively.

2.215. In 2003, the highest application rate recorded was of

2.8gal/acre (i.e., 26.12 l/h a), in 4 spray events. 312 The one

closest to the border of these 4 events was at a distance of

71metres from the Ecuadorian side of the river. The closest

spray event with an application rate higher than 23.65 l/ha (with

a value of 2.6 gal/acre, i.e. 24.31 l/ha) was at a distance of
313
12metres from the border. Dr Hewitt modeled these events

and estimated deposition values of 0.58 g/ha and 0.57 g/ha,
314
respectively. Even in these circumstances, there was no

significant deposition of the spray mi xture as a result of drift in

Ecuadorian territory.

2.216. In 2005, the highest application rate recorded was of
315
7.5gal/ha (i.e., 28.39 l/ha). The distance to the river bank on

the Ecuadorian side of the border was 710 metres. The closest

spray event with an application rate higher than 23.65 l/ha (with

a value of 6.7 gal/ha, i.e. 25.36 l/ha) was at a distance of

277metres from the river bank on the Ecuadorian side of the

border. 316 On this basis there coul d have been no significant

deposition, and drift could not ha ve resulted in any of the

damages complained of by Ecuador. Dr Hewitt confirmed this

                                                            
311 CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 35 and 40.
312
313 CR, Vol. II, Annex 5: IMA Report (2011), Table 13, p. 17.
Ibid., Table 14, p. 18.
314 CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 24 and 25.
315 CR, Vol. II, Annex 5: IMA Report (2011), Table 13, p. 17.
316
Ibid., Table 14, p. 18.

136conclusion after modeling these events and estimated deposition
311
values of 0.31 g/ha and 0.23 g/ha, respectively.

2.215. In 2003, the highest application rate recorded was of

2.8gal/acre (i.e., 26.12 l/h a), in 4 spray events. 312 The one

closest to the border of these 4 events was at a distance of

71metres from the Ecuadorian side of the river. The closest

spray event with an application rate higher than 23.65 l/ha (with

a value of 2.6 gal/acre, i.e. 24.31 l/ha) was at a distance of
313
12metres from the border. Dr Hewitt modeled these events

and estimated deposition values of 0.58 g/ha and 0.57 g/ha,
314
respectively. Even in these circumstances, there was no

significant deposition of the spray mi xture as a result of drift in

Ecuadorian territory.

2.216. In 2005, the highest application rate recorded was of
315
7.5gal/ha (i.e., 28.39 l/ha). The distance to the river bank on

the Ecuadorian side of the border was 710 metres. The closest

spray event with an application rate higher than 23.65 l/ha (with

a value of 6.7 gal/ha, i.e. 25.36 l/ha) was at a distance of

277metres from the river bank on the Ecuadorian side of the

border. 316 On this basis there coul d have been no significant

deposition, and drift could not ha ve resulted in any of the

damages complained of by Ecuador. Dr Hewitt confirmed this

                                                            
311 CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 35 and 40.
312
313 CR, Vol. II, Annex 5: IMA Report (2011), Table 13, p. 17.
Ibid., Table 14, p. 18.
314 CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 24 and 25.
315 CR, Vol. II, Annex 5: IMA Report (2011), Table 13, p. 17.
316
Ibid., Table 14, p. 18.respectively, 322which could not have resulted in any of the

damages complained of by Ecuador.

2.219. In conclusion, all of these values, ranging between

0.05 g/ha and 1.22 g/ha, are well below the levels of concern for

sensitive animal and plant species. As noted above, the level of

concern for amphibians, the most sensitive animal species

according to Ecuador, is 1,368 g/ha; and between 36 and

1,958g/ha for various crops. 323 This shows that no damage

could have been caused in Ecuador.

(5) TEMPERATURE ,HUMIDITY AND WIND CONDITIONS

2.220. Ecuador’s assertion with regard to the combined effect of

higher temperature and lower relative humidity oversimplifies a

complex interaction and misrep resents the actual conditions
324
present in the Putumayo and Nariño provinces. This leads to

incorrect assumptions and conclusions with regard to the risk of

spray drift.

2.221. In this area, relative humi dity is not “low”, but is

typically between 70% and 90%. As regards temperature, the
325
usual mid-day ranges are between 22.5°C and 30.3°C.

Precisely due to these characteristics and the complex relation

between relative humidity and temperature, Dr Hewitt ran the
                                                            
322 CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 58 and 61.
323 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 8, p. 5; CCM, Vol. III, Annex 131-B, p. 927.
324
325 ER, para. 2.151.
CR, Vol. II, Annex 19: Institute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate Characterization of The Nariño
and Putumayo Border Zone With Ecuador, 7 Dec. 2011, Vol. II pp. 697-702.

138respectively, 322which could not have resulted in any of the

damages complained of by Ecuador.

2.219. In conclusion, all of these values, ranging between

0.05 g/ha and 1.22 g/ha, are well below the levels of concern for

sensitive animal and plant species. As noted above, the level of

concern for amphibians, the most sensitive animal species

according to Ecuador, is 1,368 g/ha; and between 36 and

1,958g/ha for various crops. 323 This shows that no damage

could have been caused in Ecuador.

(5) TEMPERATURE ,HUMIDITY AND WIND CONDITIONS

2.220. Ecuador’s assertion with regard to the combined effect of

higher temperature and lower relative humidity oversimplifies a

complex interaction and misrep resents the actual conditions
324
present in the Putumayo and Nariño provinces. This leads to

incorrect assumptions and conclusions with regard to the risk of

spray drift.

2.221. In this area, relative humi dity is not “low”, but is

typically between 70% and 90%. As regards temperature, the
325
usual mid-day ranges are between 22.5°C and 30.3°C.

Precisely due to these characteristics and the complex relation

between relative humidity and temperature, Dr Hewitt ran the
                                                            
322 CR, Vol. II, Annex 2: Hewitt Sp ray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 58 and 61.
323 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 8, p. 5; CCM, Vol. III, Annex 131-B, p. 927.
324
325 ER, para. 2.151.
CR, Vol. II, Annex 19: Institute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate Characterization of The Nariño
and Putumayo Border Zone With Ecuador, 7 Dec. 2011, Vol. II pp. 697-702. “If a droplet does experience complete loss of all its
volatile components by ev aporation prior to
deposition, its final size will depend on the

proportion of the contents which were non-volatile
and typically such small droplets would be
dispersed and diluted in th e atmosphere to tiny (de
328
minimum) amounts.”

2.223. Thus, in the conditions typical of the relevant area, the

interaction between relative humidity and temperature does not

result in increased drift risk. Over 90% of the spray deposits

within 100 m of the swath edge and, as Dr Hewitt states, the

levels of deposit downwind “rapidly approach zero within a few

hundred meters.” 329 Even the smaller droplets that could be

subject to drift would carry an insignificant amount of the active

ingredient.

2.224. As for wind, Ecuador suggests, on the basis of the Giles

Report, that “strong winds may carry spray droplets –

particularly the small droplets dispersed by Colombia’s spray

planes – great distances, leadi ng to deposition at 10 kilometres
330
or more from the application site.” However, as stated by Dr

Hewitt, at long-range distances the relationship between wind

speed and deposition of drifting particles is not the same.

Higher wind speeds often produce greater dispersion in the

                                                            
328 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 16, p. 7.
329
330 Ibid., para. 32, p. 14.
ER, para. 2.152.

140 “If a droplet does experience complete loss of all its
volatile components by ev aporation prior to
deposition, its final size will depend on the

proportion of the contents which were non-volatile
and typically such small droplets would be
dispersed and diluted in th e atmosphere to tiny (de
328
minimum) amounts.”

2.223. Thus, in the conditions typical of the relevant area, the

interaction between relative humidity and temperature does not

result in increased drift risk. Over 90% of the spray deposits

within 100 m of the swath edge and, as Dr Hewitt states, the

levels of deposit downwind “rapidly approach zero within a few

hundred meters.” 329 Even the smaller droplets that could be

subject to drift would carry an insignificant amount of the active

ingredient.

2.224. As for wind, Ecuador suggests, on the basis of the Giles

Report, that “strong winds may carry spray droplets –

particularly the small droplets dispersed by Colombia’s spray

planes – great distances, leadi ng to deposition at 10 kilometres
330
or more from the application site.” However, as stated by Dr

Hewitt, at long-range distances the relationship between wind

speed and deposition of drifting particles is not the same.

Higher wind speeds often produce greater dispersion in the

                                                            
328 CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 16, p. 7.
329
330 Ibid., para. 32, p. 14.
ER, para. 2.152.2.228. In the southern parts of Nariño and Putumayo provinces

mild winds are prevalent (64% of daily records for 100 months

between 2000 and 2008) and the mean wind speeds are in the

order of between 1 m /sec and 2 m /sec, i.e., 3.6-7.2 km /h, low

values. Further, m eteorological analyses show that for m ost of

the year, predom inant winds in the border area blow from

Ecuador towards Colombia and th eir speeds are low. 335 T his

can be clear ly seen in the m ultiannual average for Mean Wind

Speed, in Colom bia’s Atlas of W inds and Eolic Energy: 336

                                                           
335 CR, Vol. II, Annex 19: Institute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate Characterization of The Nariño
and Putumayo Border Zone With Ecuador, 7 Dec. 2011, Vol. II pp. 702, 706-

336.
Available at:
https://documentacion.ideam.gov.co/openbiblio/Bvirtual/019813/Capitulo1…
df, p. 33.

1422.228. In the southern parts of Nariño and Putumayo provinces

mild winds are prevalent (64% of daily records for 100 months

between 2000 and 2008) and the mean wind speeds are in the

order of between 1 m/sec and 2 m/sec, i.e., 3.6-7.2 km/h, low

values. Further, meteorological an alyses show that for most of

the year, predominant winds in the border area blow from

Ecuador towards Colombia and their speeds are low. 335 This

can be clearly seen in the multiannual average for Median Wind

Speed, in Colombia’s Atlas of Winds and Eolic Energy: 336

                                                            
335
CR, Vol. II, Annex 19: Institute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate Characterization of The Nariño
and Putumayo Border Zone With Ecuador, 7 Dec. 2011, Vol. II pp. 702, 706-
730.
336 Available at:
https://documentacion.ideam.gov.co/openbiblio/Bvirtual/019813/Capitulo1…

df, p. 33.2.229. For purposes of drift and deposit calculations, in CICAD

II, Dr Hewitt ran the AGDISP model with a wind speed input of

2.7 m/sec (9.3 km/h); the results showed that over 90% of the
337
spray deposited within 100 m of the swath edge. Thus,

downwind the amount of spra y mixture deposited began

decreasing exponentially as clos e as 200 metres and fell below

the level of concern for sens itive species. According to

DrHewitt, as a result of the modeling in 2011, the levels of

deposit downwind “rapidly approach zero within a few hundred
338
meters.”

2.230. Ecuador relies upon its expert’s findings with regard to

the purported long-distance deposit of the spray mixture –

conveniently ignoring the shortcomings in the inputs used in the

modeling as explained by Dr He witt when analysing the Giles

Report, including assuming that wind in the area will always

blow south towards Ecuador. 339 That is not the case.

2.231. Colombia’s Atlas of Winds and Eolic Energy ( Atlas de

Viento y Energía Eólica de Colombia ) contains maps showing

the multiannual figures for wind speed and trends for wind
340
direction for each month of the year. These show that the

general trend of the winds in the relevant area near the border is

337                                                         
338 CCM, Vol. III, Annex 131-B, p. 925.
CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 32, p. 14.
339 Ibid., para. 2, p. 5.
340 For speed, available at:
https://documentacion.ideam.gov.co/openbiblio/Bvirtual/019813/Capitulo1…

df, pp. 21-33, 156-158; for wind direction, available at:
https://documentacion.ideam.gov.co/openbiblio/Bvirtual/019813/Anexo4.pdf

1442.229. For purposes of drift and deposit calculations, in CICAD

II, Dr Hewitt ran the AGDISP model with a wind speed input of

2.7 m/sec (9.3 km/h); the results showed that over 90% of the
337
spray deposited within 100 m of the swath edge. Thus,

downwind the amount of spra y mixture deposited began

decreasing exponentially as clos e as 200 metres and fell below

the level of concern for sens itive species. According to

DrHewitt, as a result of the modeling in 2011, the levels of

deposit downwind “rapidly approach zero within a few hundred
338
meters.”

2.230. Ecuador relies upon its expert’s findings with regard to

the purported long-distance deposit of the spray mixture –

conveniently ignoring the shortcomings in the inputs used in the

modeling as explained by Dr He witt when analysing the Giles

Report, including assuming that wind in the area will always

blow south towards Ecuador. 339 That is not the case.

2.231. Colombia’s Atlas of Winds and Eolic Energy ( Atlas de

Viento y Energía Eólica de Colombia ) contains maps showing

the multiannual figures for wind speed and trends for wind
340
direction for each month of the year. These show that the

general trend of the winds in the relevant area near the border is

337                                                         
338 CCM, Vol. III, Annex 131-B, p. 925.
CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
para. 32, p. 14.
339 Ibid., para. 2, p. 5.
340 For speed, available at:
https://documentacion.ideam.gov.co/openbiblio/Bvirtual/019813/Capitulo1…

df, pp. 21-33, 156-158; for wind direction, available at:
https://documentacion.ideam.gov.co/openbiblio/Bvirtual/019813/Anexo4.pd…. Detailed monthly wind trend maps for Nariño and

Putumayo, on the basis of the Atlas’ data are included in the

Report by IDEAM, 341 and a sample is provided below (Figure 2-

10).

Figure 2-10 Mean wind speed and predominant wind direction in
March in Putumayo Department.

2.233. Ecuador’s failure to produce any evidence in support of

the actual wind conditions in the area – for the purpose of

providing a foundation for the assumptions it makes with regard

341                                                         
CR, Vol. II, Annex 19: Institute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate Characterization of The Nariño
and Putumayo Border Zone With Ecuador, 7 Dec. 2011, Vol. II pp. 706-730.

1462.232. Detailed monthly wind trend maps for Nariño and

Putumayo, on the basis of the Atlas’ data are included in the

Report by IDEAM, 341 and a sample is provided below (Figure 2-

10).

Figure 2-10 Mean wind speed and predominant wind direction in
March in Putumayo Department.

2.233. Ecuador’s failure to produce any evidence in support of

the actual wind conditions in the area – for the purpose of

providing a foundation for the assumptions it makes with regard

341                                                         
CR, Vol. II, Annex 19: Institute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate Characterization of The Nariño
and Putumayo Border Zone With Ecuador, 7 Dec. 2011, Vol. II pp. 706-730.Figure 2-11 Photograph taken in Tumaco (Nariño Province),
showing validation of wind conditions present at Plot targeted for

eradication, by means of smoke discharge (Beeper) .

2.237. This procedure (emission of “beeper”) is repeated by the

pilots during the spray missions in order to confirm that wind

conditions remain appropriate (Fig ure 2-12). Risk of drift is

thus reduced to a minimum.

148Figure 2-11 Photograph taken in Tumaco (Nariño Province),
showing validation of wind conditions present at Plot targeted for

eradication, by means of smoke discharge (Beeper) .

2.237. This procedure (emission of “beeper”) is repeated by the

pilots during the spray missions in order to confirm that wind

conditions remain appropriate (Fig ure 2-12). Risk of drift is

thus reduced to a minimum.that over 90% of the spray mixture deposits within 100 m of the

swath edge and thereafter, th e remaining deposition downwind

of the swath edge begins to decrease exponentially and rapidly

falls below the level of concern for the most sensitive species,

falling effectively to zero within 300 metres. 344

(6) A LLEGED NIGHT -TIME SPRAYING

2.240. Ecuador asserts that “the data collected by the spray

planes confirm Colombia’s ni ght time spraying on a massive

scale.”345

2.241. This is not true. No aerial spraying operations for the

eradication of illicit crops in areas adjacent to the border with
346
Ecuador have been conducted during night time. It is true

that at one point, the relevant agencies contemplated the

possibility of conducting night sprayings – the operational

parameters of the 2001 EMP allowed it – and a few

experimental test runs were conducted. But the option was

discarded due to the risk such operations entailed for the safety

of pilots and aircraft. At no time were these tests ever
conducted in areas adjacent to the border with Ecuador.

2.242. This is evidenced by the certification from the United

States’ Embassy in Bogotá on the matter:

“The Government of the United States with the

cooperation of the Colombian National Police
                                                            
344
CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
345a. 32, p. 14; CCM, Vol. III, Annex 131-B, pp. 925-926.
346 ER, para. 2.147.
CCM, para. 7.27.

150that over 90% of the spray mixture deposits within 100 m of the

swath edge and thereafter, th e remaining deposition downwind

of the swath edge begins to decrease exponentially and rapidly

falls below the level of concern for the most sensitive species,

falling effectively to zero within 300 metres. 344

(6) A LLEGED NIGHT -TIME SPRAYING

2.240. Ecuador asserts that “the data collected by the spray

planes confirm Colombia’s ni ght time spraying on a massive

scale.”345

2.241. This is not true. No aerial spraying operations for the

eradication of illicit crops in areas adjacent to the border with
346
Ecuador have been conducted during night time. It is true

that at one point, the relevant agencies contemplated the

possibility of conducting night sprayings – the operational

parameters of the 2001 EMP allowed it – and a few

experimental test runs were conducted. But the option was

discarded due to the risk such operations entailed for the safety

of pilots and aircraft. At no time were these tests ever
conducted in areas adjacent to the border with Ecuador.

2.242. This is evidenced by the certification from the United

States’ Embassy in Bogotá on the matter:

“The Government of the United States with the

cooperation of the Colombian National Police
                                                            
344
CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011),
345a. 32, p. 14; CCM, Vol. III, Annex 131-B, pp. 925-926.
346 ER, para. 2.147.
CCM, para. 7.27.2.245. The time of spraying is recorded by the SATLOC and

DelNorte software systems. 349Given that the default software

time is GMT + 0:00 (Greenwich Mean Time) and local time in

Colombia is GMT minus 5 hours (-5 :00), pilots would have to

key in “-5” (minus five) on the software’s offset in order for it to

record the local time at which the spraying actually took place.

2.246. However, it appeared that so me pilots keyed in “5” (i.e.

+5) as the offset, which the so ftware records as GMT +5:00,

causing a 10-hour time-lag with regard to the real local time of

spraying. Further, it ap pears that other pilots did not make any

such adjustment, and therefore the software remained at GMT

+0:00, causing a time-lag of 5 hours with regard to local time.

In this regard, it is relevant to recall that adjusting the time offset

is not one of the tasks listed in the pre-flight check lists that

pilots are required to follow. 350

2.247. These differences of plus 10 or 5 hours, between the time

recorded on the system and local time in Colombia, are

evidenced on the spraying records. For instance, in the case of a

10-hour time-lag, spray events conducted at 13:00 local time

were recorded by the software as if they had been conducted at

23:00; if the time-lag was 5 hours , spray events were recorded

as conducted at 18:00. That is the reason why the software

recorded numerous spray events which appeared to indicate that

                                                            
349 CCM, Vol. II, Annex 67.
350
CR, Vol. IV, Annex 51: U.S. Emb. Certification with regard to night
spraying tests and erroneous time data from DelNorte, from the NAS
Director, James Story, to the Colombian Ministry of Foreign Affairs,
27 Sep. 2011.

1522.245. The time of spraying is recorded by the SATLOC and

DelNorte software systems. 349Given that the default software

time is GMT + 0:00 (Greenwich Mean Time) and local time in

Colombia is GMT minus 5 hours (-5 :00), pilots would have to

key in “-5” (minus five) on the software’s offset in order for it to

record the local time at which the spraying actually took place.

2.246. However, it appeared that so me pilots keyed in “5” (i.e.

+5) as the offset, which the so ftware records as GMT +5:00,

causing a 10-hour time-lag with regard to the real local time of

spraying. Further, it ap pears that other pilots did not make any

such adjustment, and therefore the software remained at GMT

+0:00, causing a time-lag of 5 hours with regard to local time.

In this regard, it is relevant to recall that adjusting the time offset

is not one of the tasks listed in the pre-flight check lists that

pilots are required to follow. 350

2.247. These differences of plus 10 or 5 hours, between the time

recorded on the system and local time in Colombia, are

evidenced on the spraying records. For instance, in the case of a

10-hour time-lag, spray events conducted at 13:00 local time

were recorded by the software as if they had been conducted at

23:00; if the time-lag was 5 hours , spray events were recorded

as conducted at 18:00. That is the reason why the software

recorded numerous spray events which appeared to indicate that

                                                            
349 CCM, Vol. II, Annex 67.
350
CR, Vol. IV, Annex 51: U.S. Emb. Certification with regard to night
spraying tests and erroneous time data from DelNorte, from the NAS
Director, James Story, to the Colombian Ministry of Foreign Affairs,
27 Sep. 2011. “There are spray data submitted to Ecuador from

DelNorte system which may indicate night spraying
operations after those dates. The information
contained in DelNorte data system is erroneous

because the internal clock of the aircraft used for
spraying was never synchronized correctly.

The Government of the United States uses an
additional form called Daily Flight Summary, which
shows the exact take-off and landing time for all

aircraft involved in aerial eradication missions.
These forms have been shown to the Government of
Colombia previously and can be checked with for

verification of information. We especially
appreciate to take into account the data contained in
these forms instead of the ones in DelNorte system,

since the information contained in them corresponds
to the actual situation.

Please accept our most sincere apologies for the
confusion that this error may have caused in the

analysis of this case and 353hope that this letter
clarifies the discrepancies.”

2.251. In sum, whenever pilots co rrectly adjusted local time

(GMT -5:00), the records in the software will be within the

range of the time recorded on the DFS. Otherwise, a time-lag of

plus 5 or 10 hours between the DFS and the spray data recorded

on the data card will appear. To determine the actual time of

spraying it is necessary to refer to the time of the start of the

mission recorded on the DFS.

2.252. In order to show this time-lag in spray records for the

time of spraying, spray missions from every year, in which

                                                            
353
CR, Vol. IV, Annex 51: U.S. Em b. Certification with regard to
night spraying tests and erroneous time data from Del Norte, from the NAS
Director, James Story, to the Colombian Ministry of Foreign Affairs,
27 Sep. 2011.

154 “There are spray data submitted to Ecuador from

DelNorte system which may indicate night spraying
operations after those dates. The information
contained in DelNorte data system is erroneous

because the internal clock of the aircraft used for
spraying was never synchronized correctly.

The Government of the United States uses an
additional form called Daily Flight Summary, which
shows the exact take-off and landing time for all

aircraft involved in aerial eradication missions.
These forms have been shown to the Government of
Colombia previously and can be checked with for

verification of information. We especially
appreciate to take into account the data contained in
these forms instead of the ones in DelNorte system,

since the information contained in them corresponds
to the actual situation.

Please accept our most sincere apologies for the
confusion that this error may have caused in the

analysis of this case and 353hope that this letter
clarifies the discrepancies.”

2.251. In sum, whenever pilots co rrectly adjusted local time

(GMT -5:00), the records in the software will be within the

range of the time recorded on the DFS. Otherwise, a time-lag of

plus 5 or 10 hours between the DFS and the spray data recorded

on the data card will appear. To determine the actual time of

spraying it is necessary to refer to the time of the start of the

mission recorded on the DFS.

2.252. In order to show this time-lag in spray records for the

time of spraying, spray missions from every year, in which

                                                            
353
CR, Vol. IV, Annex 51: U.S. Em b. Certification with regard to
night spraying tests and erroneous time data from Del Norte, from the NAS
Director, James Story, to the Colombian Ministry of Foreign Affairs,
27 Sep. 2011. that on the DFS was 12:04, evidencing a time-lag of
plus 10 hours, and the 21 minutes of the aircraft’s

flight to spray area and preparation for spraying.
Row 2 corresponds to the aircraft with tail number

PNC 4003, code L. It may be seen that the time
recorded by DelNorte wa s 23:25, while that on the
DFS was 12:04, evidencing a time-lag of plus 11

hours, and the 21 minutes of the aircraft’s flight to
spray area and preparation for spraying.

Row 3 corresponds to the aircraft with tail number
PNC 4007, code O. It may be seen that the time
recorded by DelNorte software was 17:25, while

that on the DFS was 12:04, evidencing a time-lag of
plus 5 hours, and the 21 minutes of the aircraft’s
flight to spray area and preparation for spraying.

Row 4 corresponds to the aircraft with tail number
PNC 4008, code P. It may be seen that the time

recorded by DelNorte so ftware was 12:25, and that
on the DFS was 12:04, thus showing that the pilot
set the offset correctly (GMT -5:00), and therefore
there was no time-lag, but only the difference of the

21 minutes of the aircraft’s flight to spray area and
preparation for spraying.

Row 5 corresponds to the aircraft with tail number
PNC 4011, code F. It may be seen that the time

recorded by DelNorte wa s 22:25, while that on the
DFS was 12:04, evidencing a time-lag of plus
10hours, and the 21 minutes of the aircraft’s flight
to spray area and preparation for spraying.

Consequently, it may be seen that on the time

recorded by the DelNorte software for the aircraft
shown in Row 4, the offset was set correctly by the
pilot and is thus consistent with the time recorded
on the DFS.” 355

355                                                         
CR, Vol. II, Annex 18: Anti-Narcotics Directorate of the Colombian
National Police (DIRAN), Eradication of Illicit Crops Division, Analysis of
Certain Spraying Operational Aspects, October 2011, Section I, Analysis of
Time Records, pp. 32-33.

156 that on the DFS was 12:04, evidencing a time-lag of

plus 10 hours, and the 21 minutes of the aircraft’s

flight to spray area and preparation for spraying.

Row 2 corresponds to the aircraft with tail number

PNC 4003, code L. It may be seen that the time

recorded by DelNorte was 23:25, while that on the

DFS was 12:04, evidencing a time-lag of plus 11

hours, and the 21 minutes of the aircraft’s flight to

spray area and preparation for spraying.

Row 3 corresponds to the aircraft with tail number 76°25'W

PNC 4007, code O. It may be seen that the time

recorded by DelNorte software was 17:25, while

that on the DFS was 12:04, evidencing a time-lag of

plus 5 hours, and the 21 minutes of the aircraft’s

flight to spray area and preparation for spraying.

Row 4 corresponds to the aircraft with tail number

PNC 4008, code P. It may be seen that the time

recorded by DelNorte so ftware was 12:25, and that

on the DFS was 12:04, thus showing that the pilot

set the offset correctly (GMT -5:00), and therefore

there was no time-lag, but only the difference of the
76°30'W
21 minutes of the aircraft’s flight to spray area and

preparation for spraying.

Row 5 corresponds to the aircraft with tail number

PNC 4011, code F. It may be seen that the time

recorded by DelNorte was 22:25, while that on the

DFS was 12:04, evidencing a time-lag of plus

10hours, and the 21 minutes of the aircraft’s flight

to spray area and preparation for spraying.

Consequently, it may be seen that on the time

recorded by the DelNorte software for the aircraft

shown in Row 4, the offset was set correctly by the 76°35'W

pilot and is thus consistent with the time recorded
355
on the DFS.”

                                                            
355 CR, Vol. II, Annex 18: Anti-Narcotics Directorate of the Colombian

National Police (DIRAN), Eradication of Illicit Crops Division, Analysis of

Certain Spraying Operational Aspects, October 2011, Section I, Analysis of
Time Records, pp. 32-33.2.255. To conclude, none of the spray missions were conducted

at night. That the times recorded by SATLOC or DelNorte

software may indicate the cont rary is due to a discrepancy

caused by errors in the offset of the spray system’s clocks. The

example explained above is clear evidence of this and is
consistent with the times recorded on the DFS for that spray

mission.

2.256. It has been shown that Colombia has not conducted night

time aerial spraying operations, as it stated in its Counter-

Memorial. Ecuador’s other arguments with regard to this issue,

such as temperature inversions, are thus irreleva nt. Moreover,
356
they have been fully addressed by Colombia’s expert on drift.

(7) C ONCLUSIONS ON DRIFT

2.257. Ecuador’s arguments are built on the unwarranted

assumption that the area up to 10-km adjacent to the border is

the relevant area. However, as Colombia has shown, deposition

due to drift effectively falls to zero within a few hundred metres.

Thus, spray events at locations farther into Colombian territory
are irrelevant for the analysis.

2.258. Ecuador assumes a variety of factors so as to maximize

the expected deposition from spray drift, whilst ignoring a

number of other releva nt variables. In order to determine the

                                                            
356 With regard to temperature inversions and the fact that they do not
increase the amount of spray drift, see CR, Vol. II, Annex 1: Hewitt Report –
Response to Giles (2011), p. 9.

 

1582.255. To conclude, none of the spray missions were conducted

at night. That the times recorded by SATLOC or DelNorte

software may indicate the cont rary is due to a discrepancy

caused by errors in the offset of the spray system’s clocks. The

example explained above is clear evidence of this and is
consistent with the times recorded on the DFS for that spray

mission.

2.256. It has been shown that Colombia has not conducted night

time aerial spraying operations, as it stated in its Counter-

Memorial. Ecuador’s other arguments with regard to this issue,

such as temperature inversions, are thus irreleva nt. Moreover,
356
they have been fully addressed by Colombia’s expert on drift.

(7) C ONCLUSIONS ON DRIFT

2.257. Ecuador’s arguments are built on the unwarranted

assumption that the area up to 10-km adjacent to the border is

the relevant area. However, as Colombia has shown, deposition

due to drift effectively falls to zero within a few hundred metres.

Thus, spray events at locations farther into Colombian territory
are irrelevant for the analysis.

2.258. Ecuador assumes a variety of factors so as to maximize

the expected deposition from spray drift, whilst ignoring a

number of other releva nt variables. In order to determine the

                                                            
356 With regard to temperature inversions and the fact that they do not
increase the amount of spray drift, see CR, Vol. II, Annex 1: Hewitt Report –
Response to Giles (2011), p. 9.

 Program’s operations and the pilots ’ training and performance.

Not only does Ecuador fail to substantiate establish any of its

unwarranted conclusions on the ba sis of the State Department’s

observations as to Dyncorp’s operations and the Program, but
there is no causal link between the minor isolated criticisms of

the operations and the adverse effects allegedly caused to

Ecuador by spray drift.

2.262. As concerns droplet size, a very high percentage of the

droplet sizes of the spray even ts in the relevant area are

substantially larger than 150 µm, at the high end of the range of

average diameter commonly i nvolved in applications of

pesticides to tree canopy foliage. In any case, the remaining

9.1% of spray events were also modeled by Dr Hewitt and the
357
resulting deposition rates were insignificant.

2.263. With regard to application rate, Dr Hewitt also modeled

the relevant events with the resu lt that deposition in Ecuadorian

territory was zero or insignifican t; therefore, it could not have

caused the damages alleged by Ecuador.

2.264. Dr Hewitt ran the modeling for the spray events with
high altitudes, speeds and application rates assuming that wind

direction is always south, i.e. from Colombia towards Ecuador,

and with a wind speed of 5.14 m/s (as used by Dr Giles), which

is not usually the case under re alistic conditions in the region.

Even in this scenario, all the results showed deposition values

well below the levels of concern for sensitive animal and plant

                                                            
357 See above, paras. 2.202-2.209, and 2.134-2.139.

 

160Program’s operations and the pilots ’ training and performance.

Not only does Ecuador fail to substantiate establish any of its

unwarranted conclusions on the ba sis of the State Department’s

observations as to Dyncorp’s operations and the Program, but
there is no causal link between the minor isolated criticisms of

the operations and the adverse effects allegedly caused to

Ecuador by spray drift.

2.262. As concerns droplet size, a very high percentage of the

droplet sizes of the spray even ts in the relevant area are

substantially larger than 150 µm, at the high end of the range of

average diameter commonly i nvolved in applications of

pesticides to tree canopy foliage. In any case, the remaining

9.1% of spray events were also modeled by Dr Hewitt and the
357
resulting deposition rates were insignificant.

2.263. With regard to application rate, Dr Hewitt also modeled

the relevant events with the resu lt that deposition in Ecuadorian

territory was zero or insignifican t; therefore, it could not have

caused the damages alleged by Ecuador.

2.264. Dr Hewitt ran the modeling for the spray events with
high altitudes, speeds and application rates assuming that wind

direction is always south, i.e. from Colombia towards Ecuador,

and with a wind speed of 5.14 m/s (as used by Dr Giles), which

is not usually the case under re alistic conditions in the region.

Even in this scenario, all the results showed deposition values

well below the levels of concern for sensitive animal and plant

                                                            
357 See above, paras. 2.202-2.209, and 2.134-2.139.

 case falls away when it is confronted with the entirety of the
record and with the existing scientific evidence.

2.269. Colombia has also shown that deposition due to drift

effectively falls to zero within a few hundred metres. Thus,

spray events at locations farther into Colombian territory are

irrelevant for the analysis. Ecuador assumes a variety of factors

so as to maximize the expected deposition from spray drift,

whilst ignoring a number of other relevant variables.

2.270. In order to determine the true extent of drift, variables
that have a strong impact in re ducing drift, notably the forest

canopy and terrain elevations, wind speed and direction need to

be properly accounted for. The pr esence of forest canopy is an

essential feature of the releva nt area. Also, meteorological

analyses show that, for most of the year, predominant winds in

the border area blow from Ecuador towards Colombia, i.e., there

would be no drift towards Ecua dor, and the predominant wind
speeds are low.

2.271. Finally, as explained in de tail above, Dr Hewitt’s

modelling of even the worst cas e actual spray events (high

altitude, speed and application rate), with a wind speed of 5.14

m/s always blowing towards Ecuador, which is not usually the

case under realistic conditions, resulted in insignificant

deposition values, well below the levels of concern for sensitive
animal and plant species. Thus no damage could have been

caused in Ecuador, which explains why Ecuador has failed to

provide any evidence in support of its baseless claims.

 
162case falls away when it is confronted with the entirety of the
record and with the existing scientific evidence.

2.269. Colombia has also shown that deposition due to drift

effectively falls to zero within a few hundred metres. Thus,

spray events at locations farther into Colombian territory are

irrelevant for the analysis. Ecuador assumes a variety of factors

so as to maximize the expected deposition from spray drift,

whilst ignoring a number of other relevant variables.

2.270. In order to determine the true extent of drift, variables
that have a strong impact in re ducing drift, notably the forest

canopy and terrain elevations, wind speed and direction need to

be properly accounted for. The pr esence of forest canopy is an

essential feature of the releva nt area. Also, meteorological

analyses show that, for most of the year, predominant winds in

the border area blow from Ecuador towards Colombia, i.e., there

would be no drift towards Ecua dor, and the predominant wind
speeds are low.

2.271. Finally, as explained in de tail above, Dr Hewitt’s

modelling of even the worst cas e actual spray events (high

altitude, speed and application rate), with a wind speed of 5.14

m/s always blowing towards Ecuador, which is not usually the

case under realistic conditions, resulted in insignificant

deposition values, well below the levels of concern for sensitive
animal and plant species. Thus no damage could have been

caused in Ecuador, which explains why Ecuador has failed to

provide any evidence in support of its baseless claims.

  Chapter 3

ECUADOR HAS NOT SUBSTANTIATED ITS

CLAIMS OF DAMAGE

A. Introduction

3.1. As Colombia has explained in its Counter-Memorial and

has already touched upon in

scientific evidence shows clearly that the spray mixture was not
capable of causing the types of harm to humans and animals

alleged by Ecuador, nor was it capable of causing damage to

plants in the minimal amounts which the modeling shows would
have been deposited even by the closest spray events.

3.2. In the light of the s pray data obtained from the US State

Department, Ecuador does not now argue that the damage
alleged was caused by direct overspray of Ecuadorian territory.

As such, Ecuador’s case is necessarily that the damage has been

caused by the deposition within its territory of the spray mixture
as the result of drift from spraying operations within Colombian

territory.

3.3. However, in Chapter 2, Colombia has demonstrated that,
contrary to the misleading picture Ecuador attempts to portray of

the spray flight data (in pa rticular as regards the height and

speed at which the various individual spray events took place ),

the manner in which the spray program was conducted was such

164 Chapter 3

ECUADOR HAS NOT SUBSTANTIATED ITS

CLAIMS OF DAMAGE

A. Introduction

3.1. As Colombia has explained in its Counter-Memorial and

has already touched upon in Chapter 2 of this Rejoinder , the

scientific evidence shows clearly that the spray mixture was not
capable of causing the types of harm to humans and animals

alleged by Ecuador, nor was it capable of causing damage to

plants in the minimal amounts which the modeling shows would
have been deposited even by the closest spray events.

3.2. In the light of the s pray data obtained from the US State

Department, Ecuador does not now argue that the damage
alleged was caused by direct overspray of Ecuadorian territory.

As such, Ecuador’s case is necessarily that the damage has been

caused by the deposition within its territory of the spray mixture
as the result of drift from spraying operations within Colombian

territory.

3.3. However, in Chapter 2, Colombia has demonstrated that,
contrary to the misleading picture Ecuador attempts to portray of

the spray flight data (in pa rticular as regards the height and

speed at which the various individual spray events took place ),

the manner in which the spray program was conducted was such

165that there was no significant deposition of spray mixture within
358
Ecuadorian territory.

3.4. Nevertheless, Ecuador continues to argue that the Court

should conclude, on the basis of the sparse evidence that has
been placed before the Court, that the damage alleged did occur,

and further, that it was caused by the deposition of spray

mixture due to drift from spraying within Colombia.

3.5. The principal basis on which Ecuador urges the Court to
reach that conclusion is the evidence of the Ecuadorian

witnesses as to the damage which they allege they either

suffered themselves, or witnessed, and which Ecuador alleges is

“corroborated” by other contemporaneous evidence (and this,
according to Ecuador, independently of the spray data). 359

3.6. In this Chapter, Colombia will show that there is a

paucity of hard scientific evidence to support Ecuador’s claims

of damage; that Ecuador’s witness evidence is unreliable,

uncorroborated by the spray data and contradicted by the
scientific evidence; that Ecuador’s other supposedly

corroborative evidence does not in fact show that damage

occurred; and that Ecuador has failed to estab lish that damage

occurred or, in any event, that it was caused by the deposition of
spray mixture due to drift from spraying within Colombia . In

sum, Ecuador’s case on damage fails.

358
359 CCM, para. 7.33. See above, para. 2.32 and Chapter 2, Section C.
ER, paras. 3.9-3.114.

166that there was no significant deposition of spray mixture within
358
Ecuadorian territory.

3.4. Nevertheless, Ecuador continues to argue that the Court

should conclude, on the basis of the sparse evidence that has
been placed before the Court, that the damage alleged did occur,

and further, that it was caused by the deposition of spray

mixture due to drift from spraying within Colombia.

3.5. The principal basis on which Ecuador urges the Court to
reach that conclusion is the evidence of the Ecuadorian

witnesses as to the damage which they allege they either

suffered themselves, or witnessed, and which Ecuador alleges is

“corroborated” by other contemporaneous evidence (and this,
according to Ecuador, independently of the spray data). 359

3.6. In this Chapter, Colombia will show that there is a

paucity of hard scientific evidence to support Ecuador’s claims

of damage; that Ecuador’s witness evidence is unreliable,

uncorroborated by the spray data and contradicted by the
scientific evidence; that Ecuador’s other supposedly

corroborative evidence does not in fact show that damage

occurred; and that Ecuador has failed to estab lish that damage

occurred or, in any event, that it was caused by the deposition of
spray mixture due to drift from spraying within Colombia . In

sum, Ecuador’s case on damage fails.

358
359 CCM, para. 7.33. See above, para. 2.32 and Chapter 2, Section C.
ER, paras. 3.9-3.114.question at the relevant times . And of course, the spray data

demonstrates there was no overspray , as claimed by many

witnesses.

3.10. In this regard, Ecuador and its experts profess ignorance

of the dates of the spray events included in the spray flight
data.360 On that basis, since most witnesses do not even mention

a month, and their references to years are formulated in terms of

a reference to a period “7 or 8 years ago”, comprising several

possible years, Ecuador in its Reply analysed the allegations of

the witnesses solely on the basis of the information as to the
year – and in very few cases as to the month – in which the

individual spray events took place.

3.11. However, in fact the file name for each of the spray

events recorded in the spray da ta indicates the precise date on
361
which the event in question took place. As a result, to the
extent that the witnesses or other sources relied upon by

Ecuador contain more or less precise allegations as to the date of

spray events, it is possible to verify whether any spraying in fact

took place as alleged. In a striking number of instances from

which precise dates or specific periods are identifiable, there
was no spraying anywhere close by.

3.12. Quite apart from the general lack of correspondence

between the allegations of harm and the actual timing and

360
361 ER, Vol. II, Annex 1, pp. 1, 6; and see e.g. ER, fn. 327.
CR, Vol. II, Annex 18: Anti-Narcotics Directorate of the Colombian
National Police (DIRAN), Eradication of Illicit Crops Division, Analysis of
Certain Spraying Operational Aspects, Oct. 2011, p. 3, Figure 1 (Pilot’s
Spray Data Sheet).

168question at the relevant times . And of course, the spray data

demonstrates there was no overspray , as claimed by many

witnesses.

3.10. In this regard, Ecuador and its experts profess ignorance

of the dates of the spray events included in the spray flight
data.360 On that basis, since most witnesses do not even mention

a month, and their references to years are formulated in terms of

a reference to a period “7 or 8 years ago”, comprising several

possible years, Ecuador in its Reply analysed the allegations of

the witnesses solely on the basis of the information as to the
year – and in very few cases as to the month – in which the

individual spray events took place.

3.11. However, in fact the file name for each of the spray

events recorded in the spray da ta indicates the precise date on
361
which the event in question took place. As a result, to the
extent that the witnesses or other sources relied upon by

Ecuador contain more or less precise allegations as to the date of

spray events, it is possible to verify whether any spraying in fact

took place as alleged. In a striking number of instances from

which precise dates or specific periods are identifiable, there
was no spraying anywhere close by.

3.12. Quite apart from the general lack of correspondence

between the allegations of harm and the actual timing and

360
361 ER, Vol. II, Annex 1, pp. 1, 6; and see e.g. ER, fn. 327.
CR, Vol. II, Annex 18: Anti-Narcotics Directorate of the Colombian
National Police (DIRAN), Eradication of Illicit Crops Division, Analysis of
Certain Spraying Operational Aspects, Oct. 2011, p. 3, Figure 1 (Pilot’s
Spray Data Sheet).drift from spraying operations within Colombian

territory.

Having set out int roductory observations as to certain

matters which cast doubt upon the independence of the

witnesses put forward by Ecuador, and as to Ecuador’s
selective reliance on the allegations made by the

witnesses, Section C examines in turn Ecuador’s claims

as to the four periods and areas in which damage was

suffered; as will be shown, the allegations of the
witnesses, and the other evidence upon which Ecuador

seeks to rely, do not substantiate its case.

Section D provides an assessment of the flawed B. The Absence of Hard Evidence of the Damage Alleged
“scientific” evidence relied upon by Ecuador as to the
3.16. It is a striking feature of Ecuador’s case as to the alleged
supposed toxicity of the spray mixture , and contrasts it damage caused by Colombia’s spraying that it is made

with the overwhelming body of scientific evidence . That principally on the basis of the testimony of witnesses

evidence conclusively shows that , quite separately from supposedly corroborated by secondary material which is itself
the fact that there has been, at most, only m inimal
entirely based on the testimony of individuals resident within the
deposition of spray mixture within Ecuadorian territory border region. Ecuador puts forward no hard scientific evidence

due to drift, in any case, the spray mixture could not either of the deposition of the spray mixture within its territory,
cause the effects as to humans and animals alleged by
or of the damage it alleges occurred.
Ecuador
3.17. In the face of the widespread damage allegedly caused

In the light of that evidence, and given the conclusive by the drift of spray mixture , portrayed by Ecuador in near -

nature of the scient ific evidence as to the non- toxic apocalyptic terms, one would have expected that Ecuador would
nature of the spray mixture to humans, animals and
be able to put forward convincing and verifiable evidence of the
plants, Section E provides a summary assessment of alleged effects of the spraying in Ecuador. Spraying started in

the regions of Colombia abutting Ecuador in 2000, continued

170drift from spraying operations within Colombian

territory.

Having set out int roductory observations as to certain

matters which cast doubt upon the independence of the

witnesses put forward by Ecuador, and as to Ecuador’s
selective reliance on the allegations made by the

witnesses, Section C examines in turn Ecuador’s claims

as to the four periods and areas in which damage was

suffered; as will be shown, the allegations of the
witnesses, and the other evidence upon which Ecuador

seeks to rely, do not substantiate its case.

Section D provides an assessment of the flawed B. The Absence of Hard Evidence of the Damage Alleged
“scientific” evidence relied upon by Ecuador as to the
3.16. It is a striking feature of Ecuador’s case as to the alleged
supposed toxicity of the spray mixture , and contrasts it damage caused by Colombia’s spraying that it is made

with the overwhelming body of scientific evidence . That principally on the basis of the testimony of witnesses

evidence conclusively shows that , quite separately from supposedly corroborated by secondary material which is itself
the fact that there has been, at most, only m inimal
entirely based on the testimony of individuals resident within the
deposition of spray mixture within Ecuadorian territory border region. Ecuador puts forward no

due to drift, in any case, the spray mixture could not either of the deposition of the spray mixture within its territory,
cause the effects as to humans and animals alleged by
or of the damage it alleges occurred.
Ecuador
3.17. In the face of the widespread damage allegedly caused

In the light of that evidence, and given the conclusive by the drift of spray mixture , portrayed by Ecuador in near -

nature of the scient ific evidence as to the non- toxic apocalyptic terms, one would have expected that Ecuador would
nature of the spray mixture to humans, animals and
be able to put forward convincing and verifiable evidence of the
plants, Section E provides a summary assessment of alleged effects of the spraying in Ecuador. Spraying started in

the regions of Colombia abutting Ecuador in 2000, continueduntil 2005, and was briefly resumed for a few months in late

2006. If the damage were as widespread as Ecuador alle ges,

there would have been ample evidence documenting the harm,

including scientific and /or medical evidence and studies,

photographs, and other images of the damage caused.

3.18. Ecuador protests that it was unaware of the particular
dates on which spraying wa s to take place in any given locality

in Colombia, such that it was unable to collect any data. 362

However, there were officials of the Ecuadorian State in the

regions in question. There is no reason why they could not have

reported to the central Ecuadorian authorities when they became

aware that spraying had taken place in the border regions of
Colombia

3.19. Nor, if damage of the type and extent alleged had in fact

occurred, is there any reason why the local authorities could not

have been dispatched to document the damage as soon as it was

reported, by taking photographs, taking soil samples for

analysis, or otherwise. Ecuador’s protestations in this regard are
without any foundation; the lack of advance warning of the date

and location of spraying clearly would not have prevented it

from documenting the supposedly widespread damage caused

after the event, if any damage had in fact occurred.

3.20. The lack of any scientific evidence is particularly

striking as regards the alleged effects of the spraying in
Esmeraldas in 2007. As discussed further below, the news

362
ER, para. 3.141.

172until 2005, and was briefly resumed for a few months in late

2006. If the damage were as widespread as Ecuador alle ges,

there would have been ample evidence documenting the harm,

including scientific and /or medical evidence and studies,

photographs, and other images of the damage caused.

3.18. Ecuador protests that it was unaware of the particular

dates on which spraying wa s to take place in any given locality
362
in Colombia, such that it was unable to collect any data.

However, there were officials of the Ecuadorian State in the

regions in question. There is no reason why they could not have
reported to the central Ecuadorian authorities when they became

aware that spraying had taken place in the border regions of

Colombia

3.19. Nor, if damage of the type and extent alleged had in fact

occurred, is there any reason why the local authorities could not
have been dispatched to document the damage as soon as it was

reported, by taking photographs, taking soil samples for

analysis, or otherwise. Ecuador’s protestations in this regard are

without any foundation; the lack of advance warning of the date

and location of spraying clearly would not have prevented it
from documenting the supposedly widespread damage caused

after the event, if any damage had in fact occurred.

3.20. The lack of any scientific evidence is particularly

striking as regards the alleged effects of the spraying in

Esmeraldas in 2007. As discussed further below, the news

362
ER, para. 3.141.inconsistent with Ecuador ’s case in these proceedings and

demonstrate that no effects were in fact felt within Ecuador.

3.24. Colombia has previously made reference to the sampling
conducted in late 2004 by members of the Ecuadorian Atomic

Energy Commission , on the basis of which Ecuador publicly

stated that no effects had been felt within Ecuador. 365 Ecuador’s

response is to state that that testing proves nothing, since there

had been no spraying in the relevant areas for some considerable
366
time prior to the dates on which the samples were taken. By

necessary implication, Ecuador thus apparently accepts that

glyphosate and AMPA are unable to cause any long -lasting

effects on soil productivity, or consequently on crop yields.

3.25. That is clearly right, and is corroborated by other testing

of samples carried out by the Ecuadorian authorities from the

border regions during 2004. The results of the tests conducted

on the soil samples concluded that:

(a) loss of productivity of plants grown in the areas
from which samples were taken was due to the

poor quality and composition of t he soil in the

Amazonian region, and not due to any effect s of

the spraying; 367 and

(b) damage observed on crop sample s provided by a

number of border communities , rather than being

365 CCM, paras. 5.45-5.63. See above paras. 2.30-2.31.
366 ER, paras. 3.30-3.32.
367 CR, Vol. IV, Annex 44: Ecuadorian Foreign Ministry Court Filing.
No. 937-2004, 22 Oct. 2004, pp. 20-21.

174inconsistent with Ecuador ’s case in these proceedings and

demonstrate that no effects were in fact felt within Ecuador.

3.24. Colombia has previously made reference to the sampling
conducted in late 2004 by members of the Ecuadorian Atomic

Energy Commission , on the basis of which Ecuador publicly

stated that no effects had been felt within Ecuador. 365 Ecuador’s

response is to state that that testing proves nothing, since there

had been no spraying in the relevant areas for some considerable
366
time prior to the dates on which the samples were taken. By

necessary implication, Ecuador thus apparently accepts that

glyphosate and AMPA are unable to cause any long -lasting

effects on soil productivity, or consequently on crop yields.

3.25. That is clearly right, and is corroborated by other testing

of samples carried out by the Ecuadorian authorities from the

border regions during 2004. The results of the tests conducted

on the soil samples concluded that:

(a) loss of productivity of plants grown in the areas
from which samples were taken was due to the

poor quality and composition of t he soil in the

Amazonian region, and not due to any effect s of

the spraying; 367 and

(b) damage observed on crop sample s provided by a

number of border communities , rather than being

365 CCM, paras. 5.45-5.63. See above paras. 2.30-2.31.
366 ER, paras. 3.30-3.32.
367 CR, Vol. IV, Annex 44: Ecuadorian Foreign Ministry Court Filing.
No. 937-2004, 22 Oct. 2004, pp. 20-21.Ecuador has failed to put forward any proper medical evidence

of the harms to health supposedly suffered by the population in
the border.

3.28. Strikingly, even as regards those individuals who have

agreed to appear as witnesses on Ecuador’s behalf in these

proceedings and who allege that they suffer persistent health

problems as a result of the spraying , no medical reports have

been placed before the Court supporting the allegations of the

witnesses that they in fact continue to suffer from the symptoms

alleged. Nor has any medical evidence been put forward that

those symptoms have anything to do with the alleged exposure

to the spray mixture.

3.29. Rather, Ecuador has chosen to rely on the bare assertions

of those witnesses both as to the health problems that they have

allegedly suffered, as well as their unsupported allegations that

these problems are caused by the spraying. Ecuador’s failure to

put forward any medical evidence in support of these claims

speaks for itself.

3.30. What there is ample evidence about, though, as

explained in Section E, below , is that precisely the health

problems that Ecuador , without any basis , attributes to the

spraying in Colombia are widespread in the bor der area, albeit
due to other causes . In particular, this is confirmed by a n

176Ecuador has failed to put forward any proper medical evidence

of the harms to health supposedly suffered by the population in
the border.

3.28. Strikingly, even as regards those individuals who have

agreed to appear as witnesses on Ecuador’s behalf in these

proceedings and who allege that they suffer persistent health

problems as a result of the spraying , no medical reports have

been placed before the Court supporting the allegations of the

witnesses that they in fact continue to suffer from the symptoms

alleged. Nor has any medical evidence been put forward that

those symptoms have anything to do with the alleged exposure

to the spray mixture.

3.29. Rather, Ecuador has chosen to rely on the bare assertions

of those witnesses both as to the health problems that they have

allegedly suffered, as well as their unsupported allegations that

these problems are caused by the spraying. Ecuador’s failure to

put forward any medical evidence in support of these claims

speaks for itself.

3.30. What there is ample evidence about, though, as

explained in Section E, below , is that precisely the health

problems that Ecuador , without any basis , attributes to the

spraying in Colombia are widespread in the bor der area, albeit
due to other causes . In particular, this is confirmed by a nwitness evidence is subst antially corroborated by other

evidence, including contemporaneous press reports, the reports

of NGOs, and the conclusions of UN Special Rapporteurs, as
well as arguing that the spray data obtained from the US State

Department corroborates both the allegations of the witnesses,
376
as well as the allegations contained in the secondary material.

3.33. In the present section, Colombia shows that both the
witness evidence, as well as the supposedly corroborative

evidence, are simply not worthy of any credibility.

(1) G ENERAL ASSESSMENT OF THE WITNESS STATEMENTS

3.34. Quite apart from their contents, t here are numerous

elements apparent on the face of the various witness statements
which calls into question their credibility . First, a ll of the

witness statements were given many years after the alleged

facts, in some cases, as much as nine years.

3.35. Second, even a cursory study of the various statements
reveals that they have similar characteristics, and follow

essentially the same structure, consisting of

a) a description, which in many cases is similar, and

in some cases even us es exactly the same terms,

of their alleged experience of the aerial herbicide

spraying; in almost all cases , the witnesses
provide only a vague indication as to the dates

376
ER, paras. 3.5-3.7. See also ER, Chapter 3, Section I.

178witness evidence is subst antially corroborated by other

evidence, including contemporaneous press reports, the reports

of NGOs, and the conclusions of UN Special Rapporteurs, as
well as arguing that the spray data obtained from the US State

Department corroborates both the allegations of the witnesses,
376
as well as the allegations contained in the secondary material.

3.33. In the present section, Colombia shows that both the
witness evidence, as well as the supposedly corroborative

evidence, are simply not worthy of any credibility.

(1) G ENERAL ASSESSMENT OF THE WITNESS STATEMENTS

3.34. Quite apart from their contents, t here are numerous

elements apparent on the face of the various witness statements
which calls into question their credibility . First, a ll of the

witness statements were given many years after the alleged

facts, in some cases, as much as nine years.

3.35. Second, even a cursory study of the various statements
reveals that they have similar characteristics, and follow

essentially the same structure, consisting of

a) a description, which in many cases is similar, and

in some cases even us es exactly the same terms,

of their alleged experience of the aerial herbicide

spraying; in almost all cases , the witnesses
provide only a vague indication as to the dates

376
ER, paras. 3.5-3.7. See also ER, Chapter 3, Section I. disappearance of species of wild animals , etc.

that, as discussed below , c ould not be caused

even as a result of exposure to the spray mixture

due to direct oversp ray. The coincidence of the

accounts of the witnesses in describing effects

that simply cannot have occurred is striking.

e) a section on other alleged adverse effects,

whether on the economy of the region,

indigenous traditions, or in terms of displacement
of the population. Since it has been shown that

there was no spraying in Ecuador and that there

would have been no or insignificant deposit of

spray mixture due to drift , it is quite clear that

these other alleged adverse effects simply could

not have occur red; the economy of the region
could not have been affected, nor could

population displacement in Ecuador have ensued

as a consequence of the spraying in Colombian

territory;

f) allegations to the effect that, prior to the alleged

sprayings, the witnesses “had never seen anything

similar” to the purported effects they describe.

3.36. Further, a number of the statements use technical terms

which one would not expect farmers or agricultural workers in a
rural area, let alone members of indigenous populations, to use.

For instance, the repeated use of terms such as “escoltados”

180 disappearance of species of wild animals , etc.

that, as discussed below , c ould not be caused

even as a result of exposure to the spray mixture

due to direct oversp ray. The coincidence of the

accounts of the witnesses in describing effects

that simply cannot have occurred is striking.

e) a section on other alleged adverse effects,

whether on the economy of the region,

indigenous traditions, or in terms of displacement
of the population. Since it has been shown that

there was no spraying in Ecuador and that there

would have been no or insignificant deposit of

spray mixture due to drift , it is quite clear that

these other alleged adverse effects simply could

not have occur red; the economy of the region
could not have been affected, nor could

population displacement in Ecuador have ensued

as a consequence of the spraying in Colombian

territory;

f) allegations to the effect that, prior to the alleged

sprayings, the witnesses “had never seen anything

similar” to the purported effects they describe.

3.36. Further, a number of the statements use technical terms

which one would not expect farmers or agricultural workers in a
rural area, let alone members of indigenous populations, to use.

For instance, the repeated use of terms such as “escoltados” Spanish; the more common usage would be

“volar sobre” or “volar encima de”;

c) Witness 5 claims that he saw planes flying over

Salinas, an d in that regard comments “Las

avionetas no respetaron nuestro espacio aéreo.

Ingresaron a nuestro territorio mientras pasaban

fumigando para dar la vuelta para Colombia”
(“The planes did not respect our airspace. They

entered our territory as they were spraying to turn

around toward Colombia”). 381

3.37. The reason for the consistent structure of all of the

statements, the high standard of Spanish and the incongruous
use of technical terms, would appear to be that the statements of

the various witnesses were carefu lly prepared and collated in

advance by members of Ecuador’s legal team, those prepared

statements were then provided to the various notaries public,

who simply copied the text into the sworn statements which
have been put forward by Ecuador, which were then signed by

the witness. As much is clear from a number of factors, in

particular, the dates on which the various statements were

supposedly sworn by the witnesses.

3.38. In total, seventeen of the statements of witnesses (those
of Witnesses 1, 2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17, 20, 21, 22, 23

and 29), 382 were sworn on a single day, 16 January 2009, in

381
382 Statement of Witness 5, EM, Vol. IV, Annex 193.
EM, Vol. IV, Annexes 189, 190, 193, 194, 195, 196, 197, 198, 199,
200, 201, 203, 206, 207, 208, 209 and 213.

182 Spanish; the more common usage would be

“volar sobre” or “volar encima de”;

c) Witness 5 claims that he saw planes flying over

Salinas, an d in that regard comments “Las

avionetas no respetaron nuestro espacio aéreo.

Ingresaron a nuestro territorio mientras pasaban

fumigando para dar la vuelta para Colombia”
(“The planes did not respect our airspace. They

entered our territory as they were spraying to turn

around toward Colombia”). 381

3.37. The reason for the consistent structure of all of the

statements, the high standard of Spanish and the incongruous
use of technical terms, would appear to be that the statements of

the various witnesses were carefu lly prepared and collated in

advance by members of Ecuador’s legal team, those prepared

statements were then provided to the various notaries public,

who simply copied the text into the sworn statements which
have been put forward by Ecuador, which were then signed by

the witness. As much is clear from a number of factors, in

particular, the dates on which the various statements were

supposedly sworn by the witnesses.

3.38. In total, seventeen of the statements of witnesses (those
of Witnesses 1, 2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17, 20, 21, 22, 23

and 29), 382 were sworn on a single day, 16 January 2009, in

381
382 Statement of Witness 5, EM, Vol. IV, Annex 193.
EM, Vol. IV, Annexes 189, 190, 193, 194, 195, 196, 197, 198, 199,
200, 201, 203, 206, 207, 208, 209 and 213.similar form to the statements made on 16 January 2009,
commences as follows:

“In the city of Nueva Loja, provincial capital of

Sucumbíos, Republic of Ecuador, on this fifteenth
day of January of the year two thousand and nine,
before me, DOCTOR JOSÉ MARÍA
BARRAZUETA TOLEDO, Acting Notary

Public of the First Notary Public’s Office of Lago
Agrio Canton, appeared Doctor Dino Juan Sánchez
Quishpe, Ecuadorian, a doctor of medicine, married,
domiciled in the city of Nueva Loja, of legal age,
without any legal impediment to declare, to ask me

to convert his declaration into a public instrument,
the same as follows: “ MR. NOTARY PUBLIC:
Please include in the Registry of Public Instruments
under your custody a declaration, contained in the

following clauses: FIRST: PARTY HERETO. -
For the execution of this public instrument, appears
Doctor Dino Sánchez, of Ecuadorian nationality,
bearer of identity card number one seven zero seven

nine nine zero three five dash two, of legal age,
domiciled in the city of Nueva Loja, legally able to
enter into and be bound by contracts, on his own
right; SECOND: [SWORN] DECLARATION. -

Freely, voluntarily, and under oath, the deponent
declares the following: My name is Din o Sánchez.
[…]” 383

3.42. Second, further proof or corroboration of the fact that the

statements were prepared in advance of the meeting with the

Notary Public results from the fact that, in addition to
incorporating what purports to be the spontaneous statement of

the witness, each of the statements made on 16 January 2009

also incorporates a request in identical terms to the notary –

383 Statement of Dr Dino Juan Sánchez Qui shpe, EM, Vol. IV,
Annex 188.

184similar form to the statements made on 16 January 2009,
commences as follows:

“In the city of Nueva Loja, provincial capital of

Sucumbíos, Republic of Ecuador, on this fifteenth
day of January of the year two thousand and nine,
before me, DOCTOR JOSÉ MARÍA
BARRAZUETA TOLEDO, Acting Notary

Public of the First Notary Public’s Office of Lago
Agrio Canton, appeared Doctor Dino Juan Sánchez
Quishpe, Ecuadorian, a doctor of medicine, married,
domiciled in the city of Nueva Loja, of legal age,
without any legal impediment to declare, to ask me

to convert his declaration into a public instrument,
the same as follows: “ MR. NOTARY PUBLIC:
Please include in the Registry of Public Instruments
under your custody a declaration, contained in the

following clauses: FIRST: PARTY HERETO. -
For the execution of this public instrument, appears
Doctor Dino Sánchez, of Ecuadorian nationality,
bearer of identity card number one seven zero seven

nine nine zero three five dash two, of legal age,
domiciled in the city of Nueva Loja, legally able to
enter into and be bound by contracts, on his own
right; SECOND: [SWORN] DECLARATION. -

Freely, voluntarily, and under oath, the deponent
declares the following: My name is Din o Sánchez.
[…]” 383

3.42. Second, further proof or corroboration of the fact that the

statements were prepared in advance of the meeting with the

Notary Public results from the fact that, in addition to
incorporating what purports to be the spontaneous statement of

the witness, each of the statements made on 16 January 2009

also incorporates a request in identical terms to the notary –

383 Statement of Dr Dino Juan Sánchez Qui shpe, EM, Vol. IV,
Annex 188. 388
Quishpe (referred to above), both dated 15 January

2009;

• the sworn declarations of Witnesses 3, 14 and 19,

sworn on 17 January 2009; 389

• the sworn declarations of Witnesses 26, 27 and 28,
390
sworn on 17 February 2009; and

• the sworn declaration of Witness 31, sworn on 27

February 2009. 391

3.44. Similarly, the sworn statements of Witnesses 40 and 41,

both originally from Mataje Alto, notarised by José Fabian

Simbaña Ayabaca, First Notary of the Canton of Otavalo (a

region located some distance from the border region) on
392
20 February 2009, follow an analogous format t o those

notarised by Dr Barrazueta in Nueva Loja. Again, the two sworn

declarations end with the transcription of the request signed by

Dr Íñigo Salvador Crespo to add the normal clauses in order to
ensure the full validity of the declaration as a public instrument.

3.45. In the case of these two statements, quite apart from the

factors set out in the preceding paragraphs, there can be no

doubt that they were transcribed from a pre -prepared statement.

In each of them, at the outset, the notary expressly notes that he

was requested

388 Statement of Dr Dino Juan Sánchez Quishpe, EM, Vol. IV,
Annex 188.
389 EM, Vol. IV, Annexes 191, 202 and 205.
390 EM, Vol. IV, Annexes 210, 211 and 212.
391 EM, Vol. IV, Annex 215.
392 EM, Vol. IV, Annexes 223 and 224.

186 388
Quishpe (referred to above), both dated 15 January

2009;

• the sworn declarations of Witnesses 3, 14 and 19,

sworn on 17 January 2009; 389

• the sworn declarations of Witnesses 26, 27 and 28,
390
sworn on 17 February 2009; and

• the sworn declaration of Witness 31, sworn on 27

February 2009. 391

3.44. Similarly, the sworn statements of Witnesses 40 and 41,

both originally from Mataje Alto, notarised by José Fabian

Simbaña Ayabaca, First Notary of the Canton of Otavalo (a

region located some distance from the border region) on
392
20 February 2009, follow an analogous format t o those

notarised by Dr Barrazueta in Nueva Loja. Again, the two sworn

declarations end with the transcription of the request signed by

Dr Íñigo Salvador Crespo to add the normal clauses in order to
ensure the full validity of the declaration as a public instrument.

3.45. In the case of these two statements, quite apart from the

factors set out in the preceding paragraphs, there can be no

doubt that they were transcribed from a pre -prepared statement.

In each of them, at the outset, the notary expressly notes that he

was requested

388 Statement of Dr Dino Juan Sánchez Quishpe, EM, Vol. IV,
Annex 188.
389 EM, Vol. IV, Annexes 191, 202 and 205.
390 EM, Vol. IV, Annexes 210, 211 and 212.
391 EM, Vol. IV, Annex 215.
392 EM, Vol. IV, Annexes 223 and 224.declarations made in Nueva Loja and Otavalo, the statements do

not on their face bear the same obvious indications that they

were made on the basis of pre- prepared statements: they do not

recount the same instructions to the notary, nor do they
incorporate any reque st addressed to the notary signed by

Dr Salvador.

3.48. However, there is good reason to believe that those

sworn declarations were likewise made on the basis of
statements prepared in advance by members of Ecuador’s legal

team. First, as with the other declarations, each declaration made

in Esmeraldas follows a curiously identical order; they each

proceed to deal with imprecise allegations of herbicide spraying,
the alleged impacts on human health, the alleged impact on

water sources, crops and animals. Some of them deal in their

final paragraphs with additional matters, including other alleged

effects, notably displacement of the population.

3.49. Further, all eight declarations are stated to have been
made on the same date, 19 February 2009. Whilst the statements

made in Esmeraldas are somewhat shorter than those made in

Nueva Loja, it is still inherently unlikely that the notary public

would have been able to take the “spontaneous” oral statements
and produce notarised sworn declarations of eight individuals in

a single day.

3.50. The obvious inference from the various factors noted

above is that members of Ecuador’s legal team selected the

various witnesses, interviewed them, and then prepared their

188declarations made in Nueva Loja and Otavalo, the statements do

not on their face bear the same obvious indications that they

were made on the basis of pre- prepared statements: they do not

recount the same instructions to the notary, nor do they
incorporate any reque st addressed to the notary signed by

Dr Salvador.

3.48. However, there is good reason to believe that those

sworn declarations were likewise made on the basis of
statements prepared in advance by members of Ecuador’s legal

team. First, as with the other declarations, each declaration made

in Esmeraldas follows a curiously identical order; they each

proceed to deal with imprecise allegations of herbicide spraying,
the alleged impacts on human health, the alleged impact on

water sources, crops and animals. Some of them deal in their

final paragraphs with additional matters, including other alleged

effects, notably displacement of the population.

3.49. Further, all eight declarations are stated to have been
made on the same date, 19 February 2009. Whilst the statements

made in Esmeraldas are somewhat shorter than those made in

Nueva Loja, it is still inherently unlikely that the notary public

would have been able to take the “spontaneous” oral statements
and produce notarised sworn declarations of eight individuals in

a single day.

3.50. The obvious inference from the various factors noted

above is that members of Ecuador’s legal team selected the

various witnesses, interviewed them, and then prepared their Corazon Orense (witnesses 8 and 9), Puerto

Mestanza (witness 10), Puerto Escondido (witnesses

20, 21, 22, 23) and San Francisco II and communities

in the region (including La Cóndor and La Carchi
(witnesses 11, 12, 13, 17), as well as one witness

from th e Avié community of the Cofá n Reserve

(witness 29)

• On 17 January 2009, a further witness from Salinas

(witness 3), together with two witnesses from San

Francisco I and II (Witnesses 14 and 19).

Thereafter, in a second period of activity lasting just four days,

• On 17 February 2009, further witnesses from the

Avié community of the Cofán reserve (witnesses 26,

and 27), and a witness from Yana Amarum

(witness 28) made sworn declarations in Nueva Loja
before Dr Barrazueta in Nuevo Loja,

• Two days later, on 19 February 2009, the activity

then apparently shifted to Esmeraldas (some
80 miles, it may be noted, as the crow flies from

Mataje), where the eight witnesses from Mataje

(witnesses 30, 32, 33, 34, 36, 37, 38 and 39) made

their sworn declarations before Abg. Alfredo Rivera
Drouet;

• Finally, on 20 February 2009, Witnesses 40 and 41,

previously from Mataje Alto but who had moved
away from the border region, made their sworn

190 Corazon Orense (witnesses 8 and 9), Puerto

Mestanza (witness 10), Puerto Escondido (witnesses

20, 21, 22, 23) and San Francisco II and communities

in the region (including La Cóndor and La Carchi
(witnesses 11, 12, 13, 17), as well as one witness

from th e Avié community of the Cofá n Reserve

(witness 29)

• On 17 January 2009, a further witness from Salinas

(witness 3), together with two witnesses from San

Francisco I and II (Witnesses 14 and 19).

Thereafter, in a second period of activity lasting just four days,

• On 17 February 2009, further witnesses from the

Avié community of the Cofán reserve (witnesses 26,

and 27), and a witness from Yana Amarum

(witness 28) made sworn declarations in Nueva Loja
before Dr Barrazueta in Nuevo Loja,

• Two days later, on 19 February 2009, the activity

then apparently shifted to Esmeraldas (some
80 miles, it may be noted, as the crow flies from

Mataje), where the eight witnesses from Mataje

(witnesses 30, 32, 33, 34, 36, 37, 38 and 39) made

their sworn declarations before Abg. Alfredo Rivera
Drouet;

• Finally, on 20 February 2009, Witnesses 40 and 41,

previously from Mataje Alto but who had moved
away from the border region, made their sworninto public instruments, some fee was almost certainly payable.
Given that almost all the witnesses are rural workers with only

limited income, Colombia is left to wonder who paid those fees.

There is no information as to what other incentives were

provided to the witnesses to persuade them to give their

evidence.

3.55. The fact that the sworn declarations appear to have been

carefully prepared and drafted in advance of the making of the
statement before the notaries, with, at the least, the assistance of

members of Ecuador’s legal team, clearly has implications for

their credibility. In particular, it casts the coincidences between

the various statements, and the similarity of the testimony of the

witnesses, in a different light.

3.56. In these circumstan ces, Ecuador’s reliance on the fact

that the witness statements show “the repeated occurrence of the

same symptoms across the various towns affected on the border
of Ecuador” 397 as indicating their independence and their

mutually corroborating nature, and its similar reliance upon the

substantial coincidence of the accounts of witnesses resident in
398
Mataje and Salinas, some 250 kilometres apart , is misplaced,

and the similarities do nothing to reinforce the credibility of the

evidence. Rather, the coincidences undermine it.

3.57. There is a further aspect of the witness stateme nts in
these proceedings which c asts doubt on the independent and

397 ER, para. 3.46.
398 ER, para. 3.123.

192into public instruments, some fee was almost certainly payable.
Given that almost all the witnesses are rural workers with only

limited income, Colombia is left to wonder who paid those fees.

There is no information as to what other incentives were

provided to the witnesses to persuade them to give their

evidence.

3.55. The fact that the sworn declarations appear to have been

carefully prepared and drafted in advance of the making of the
statement before the notaries, with, at the least, the assistance of

members of Ecuador’s legal team, clearly has implications for

their credibility. In particular, it casts the coincidences between

the various statements, and the similarity of the testimony of the

witnesses, in a different light.

3.56. In these circumstan ces, Ecuador’s reliance on the fact

that the witness statements show “the repeated occurrence of the

same symptoms across the various towns affected on the border
of Ecuador” 397 as indicating their independence and their

mutually corroborating nature, and its similar reliance upon the

substantial coincidence of the accounts of witnesses resident in
398
Mataje and Salinas, some 250 kilometres apart , is misplaced,

and the similarities do nothing to reinforce the credibility of the

evidence. Rather, the coincidences undermine it.

3.57. There is a further aspect of the witness stateme nts in
these proceedings which c asts doubt on the independent and

397 ER, para. 3.46.
398 ER, para. 3.123.active in the border region from the start of the spraying

program in 2000, seeking to document the alleged harms of the

spraying program. In this regard a number of the individuals

who have given evidence before the Court in these proceedings

expressly state in their questionnaires in the Dyncorp

proceedings that they had first learnt about the spraying program

from meetings with NGO representatives.

3.60. For in stance, in her questionnaire for the Dyncorp

proceedings, Witness 9, a resident of Corazon Orense, states that

she found out about the Plan Colombia spraying from
Colombian friends at meetings at the school. 400

401
3.61. Similarly, Witness 13, a resident of San Franc isco,
stated in her Questionnaire in the Dyncorp proceedings that she

became aware of the Plan Colombia program from Dr Adolfo

Maldonado. In that regard, it is to be noted that the joint

CONAIE / Acción Ecológica Report 402 records a meeting in the

school in San Francisco II on 20 July 2001.

3.62. As is apparent from other evidence filed by Ecuador in

these proceedings, Dr Maldona do is an activist who had been

extensively involved in the early “verification” missions in the

border area in the early years of the spraying program, including

400
CR, Vol. VI, Annex 68: Plaintiff Questionnaire, Arias/Quinteros
v. Dyncorp, D.D.C. (EM, Vol. IV, Annex 197, Witness 9).
401 CR, Vol. VI, Annex 71: Plaintiff Questionnaire, Arias/Quinteros
v. Dyncorp, D.D.C. (EM, Vol. IV, Annex 201, Witness 13).
402 EM, Vol. IV, Annex 162.

194active in the border region from the start of the spraying

program in 2000, seeking to document the alleged harms of the

spraying program. In this regard a number of the individuals

who have given evidence before the Court in these proceedings

expressly state in their questionnaires in the Dyncorp

proceedings that they had first learnt about the spraying program

from meetings with NGO representatives.

3.60. For in stance, in her questionnaire for the Dyncorp

proceedings, Witness 9, a resident of Corazon Orense, states that

she found out about the Plan Colombia spraying from
Colombian friends at meetings at the school. 400

401
3.61. Similarly, Witness 13, a resident of San Franc isco,
stated in her Questionnaire in the Dyncorp proceedings that she

became aware of the Plan Colombia program from Dr Adolfo

Maldonado. In that regard, it is to be noted that the joint

CONAIE / Acción Ecológica Report 402 records a meeting in the

school in San Francisco II on 20 July 2001.

3.62. As is apparent from other evidence filed by Ecuador in

these proceedings, Dr Maldona do is an activist who had been

extensively involved in the early “verification” missions in the

border area in the early years of the spraying program, including

400
CR, Vol. VI, Annex 68: Plaintiff Questionnaire, Arias/Quinteros
v. Dyncorp, D.D.C. (EM, Vol. IV, Annex 197, Witness 9).
401 CR, Vol. VI, Annex 71: Plaintiff Questionnaire, Arias/Quinteros
v. Dyncorp, D.D.C. (EM, Vol. IV, Annex 201, Witness 13).
402 EM, Vol. IV, Annex 162.as showing the truthfulness of the statements of the various

witnesses. 405

3.66. However, as shown by the analysis of the spray data in

the Appendix “Analysis of Ecuadorian Witness Statements as to

Timing and Location of Spraying and Alleged Effects”, many of
those witnesses who allege havi ng seen planes spraying “white

smoke” state that they reside in locations which are some

considerable distance from the nearest sprayings conducted in

Colombian territory, and in many cases at a distance of several

kilometres from the San Miguel River which constitutes the
border.

3.67. Quite apart from the associat ed allegations of overspray

made by some of these witnesses, which, as discussed in detail

further below, are clearly untrue, their allegations of having seen

planes engaged in spraying, and having seen them release white
smoke, are simply not credible.

3.68. As set out in Chapter 2, the planes engaged in spraying

operations do on occasion releas e white smoke (“beeper”,

caused by burning fuel), for the purpose of ascertaining

meteorological conditions, including in particular wind speed,
and the extent of drif t prior to actual spraying operations. As

shown in the pictures at Figures 2-11 and 2-12 there is a clear

difference between the appearan ce of “beeper” and the actual

spray mixture, which rather appears as a clear mist. The spray

405
ER, para. 3.124.

196as showing the truthfulness of the statements of the various

witnesses. 405

3.66. However, as shown by the analysis of the spray data in

the Appendix “Analysis of Ecuadorian Witness Statements as to

Timing and Location of Spraying and Alleged Effects”, many of
those witnesses who allege havi ng seen planes spraying “white

smoke” state that they reside in locations which are some

considerable distance from the nearest sprayings conducted in

Colombian territory, and in many cases at a distance of several

kilometres from the San Miguel River which constitutes the
border.

3.67. Quite apart from the associat ed allegations of overspray

made by some of these witnesses, which, as discussed in detail

further below, are clearly untrue, their allegations of having seen

planes engaged in spraying, and having seen them release white
smoke, are simply not credible.

3.68. As set out in Chapter 2, the planes engaged in spraying

operations do on occasion releas e white smoke (“beeper”,

caused by burning fuel), for the purpose of ascertaining

meteorological conditions, including in particular wind speed,
and the extent of drif t prior to actual spraying operations. As

shown in the pictures at Figures 2-11 and 2-12 there is a clear

difference between the appearan ce of “beeper” and the actual

spray mixture, which rather appears as a clear mist. The spray

405
ER, para. 3.124.3,131 metres from the closest point on the Ecuadorian bank of

the border river; and the distance of those spray events from the

alternative locations for the community was greater, ranging
407
between 3,050 and 4,481 metres.

3.73. As for Witness 9, from Corazón Orense, if she is to be

understood to be referring to 2001 when she claims that “about 7

or 8 years ago”, she saw plane s “escorted by helicopters” which

“seemed to be flying by the edge of the river, releasing a white
408
smoke”, the closest spray events in Colombian territory in

that year were at d istances from the closest point on the

Ecuadorian bank of the border river nea r the village ranging

from 1,850 metres to 1,130 metres, and were between 6,200 and
409
6,085 metres from Corazón Orense itself . If she is to be

understood as referring to 2002, the distances of the closest

spray events to the Ecuadorian bank on the border r iver were

even ranged between 2,720 and 3,090 met res; and between
410
4,640 and 5,125 metr es from the community . Similarly,

Witness 12 in her stateme nt affirms that she resides in San

Francisco II, about 2 km from the border, but claims that in

2002, she saw planes in the air and that “[o]ne could clearly see

407 CR, Vol. II, Annex 18: Anti -Narcotics Directorate of the Colombian
National Police (DIRAN), Eradication of Illicit Crops Division, Analysis of
Certain Spraying Operational Aspects, October 2011, p. 64-65, Fig. 2; see
also CR, Vol. I, Appendix: Analysis of Ecuadorian Witness Statements as to
Timing and Location of Spraying and Alleged Effects , pp. 42-43, Fig. 2.
408 EM, Vol. IV, Annex 197.
409
CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 68-69, Fig. 4; see also CR, Vol. I, Appendix, pp. 68-
410 Fig. 4.
CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 70-71, Fig. 5; see also CR, Vol. I, Appendix, pp. 70-
71, Fig. 5.

1983,131 metres from the closest point on the Ecuadorian bank of

the border river; and the distance of those spray events from the

alternative locations for the community was greater, ranging
407
between 3,050 and 4,481 metres.

3.73. As for Witness 9, from Corazón Orense, if she is to be

understood to be referring to 2001 when she claims that “about 7

or 8 years ago”, she saw plane s “escorted by helicopters” which

“seemed to be flying by the edge of the river, releasing a white
408
smoke”, the closest spray events in Colombian territory in

that year were at d istances from the closest point on the

Ecuadorian bank of the border river nea r the village ranging

from 1,850 metres to 1,130 metres, and were between 6,200 and
409
6,085 metres from Corazón Orense itself . If she is to be

understood as referring to 2002, the distances of the closest

spray events to the Ecuadorian bank on the border r iver were

even ranged between 2,720 and 3,090 met res; and between
410
4,640 and 5,125 metr es from the community . Similarly,

Witness 12 in her stateme nt affirms that she resides in San

Francisco II, about 2 km from the border, but claims that in

2002, she saw planes in the air and that “[o]ne could clearly see

407 CR, Vol. II, Annex 18: Anti -Narcotics Directorate of the Colombian
National Police (DIRAN), Eradication of Illicit Crops Division, Analysis of
Certain Spraying Operational Aspects, October 2011, p. 64-65, Fig. 2; see
also CR, Vol. I, Appendix: Analysis of Ecuadorian Witness Statements as to
Timing and Location of Spraying and Alleged Effects , pp. 42-43, Fig. 2.
408 EM, Vol. IV, Annex 197.
409
CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 68-69, Fig. 4; see also CR, Vol. I, Appendix, pp. 68-
410 Fig. 4.
CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 70-71, Fig. 5; see also CR, Vol. I, Appendix, pp. 70-
71, Fig. 5.3.76. As the Court emphasised in Territorial and Maritime

Dispute between Nicaragua and Honduras in the Caribbean Sea

(Nicaragua v. Honduras):

“witness statements produced in the form of
affidavits should be treated with caution. In
assessing such affidavits the Court must take into

account a number of factors. […] where there would
have been no reason for private persons to offer
testimony earlier, affidavits prepared even for the
purposes of litigation will be scrutinized by the
Court both to see whether what has been test ified to
has been influenced by those taking the deposition
414
and for the utility of what is said.”

3.77. On the basis of the matters set out above, t here are clear
grounds for treating the statements in the present case with

“caution”, and further grounds resul t applying the matters

identified by the Court . Taking the various factors identified by

the Court in turn, the sworn declarations made by the various
Ecuadorian witnesses were self -evidently prepared for the

purposes of the present litigation many years –in some cases as

much as nine years - after the alleged facts . But if the facts

contained therein are true, there w ere clearly good reasons for
the various witnesses to have prepared statements previously,

whether for the purposes of substantiating their c omplaints to

the Ecuadorian authorities, for the purposes of making claims

under the Colombian compensation scheme, or in the context of

the Arias v. Dyncorp litigation before the US courts. Ecuador
has produced no such earlier statements by the witnesses which

414
Case concerning Territorial and Maritime Dispute between
Nicaragua and Honduras in the Caribbean Sea (Nicaragua v. Honduras),
ICJ Reports 2007, p. 731, para. 244.

2003.76. As the Court emphasised in Territorial and Maritime

Dispute between Nicaragua and Honduras in the Caribbean Sea

(Nicaragua v. Honduras):

“witness statements produced in the form of
affidavits should be treated with caution. In
assessing such affidavits the Court must take into

account a number of factors. […] where there would
have been no reason for private persons to offer
testimony earlier, affidavits prepared even for the
purposes of litigation will be scrutinized by the
Court both to see whether what has been test ified to
has been influenced by those taking the deposition
414
and for the utility of what is said.”

3.77. On the basis of the matters set out above, t here are clear
grounds for treating the statements in the present case with

“caution”, and further grounds resul t applying the matters

identified by the Court . Taking the various factors identified by

the Court in turn, the sworn declarations made by the various
Ecuadorian witnesses were self -evidently prepared for the

purposes of the present litigation many years –in some cases as

much as nine years - after the alleged facts . But if the facts

contained therein are true, there w ere clearly good reasons for
the various witnesses to have prepared statements previously,

whether for the purposes of substantiating their c omplaints to

the Ecuadorian authorities, for the purposes of making claims

under the Colombian compensation scheme, or in the context of

the Arias v. Dyncorp litigation before the US courts. Ecuador
has produced no such earlier statements by the witnesses which

414
Case concerning Territorial and Maritime Dispute between
Nicaragua and Honduras in the Caribbean Sea (Nicaragua v. Honduras),
ICJ Reports 2007, p. 731, para. 244. other relatives. As discussed below, it is clear from

the scientific evidence, that the spray mixture is

incapable of causing death. Ecuador no longer asserts
415
the contrary, although nevertheless, it continues to

rely on the evidence of a number of witnesses who

assert that their relatives died as the result of the
spraying. Significantly, a number of the wi tnesses

who make allegations of deaths being caused by the

spraying are also those that assert direct overspray

and whose evidence is demonstrably also false in that

regard.

• Third, quite apart from the allegations of those

witnesses who state that they sa w planes emitting

“white smoke” which, as discussed above, in relation

to a number of the witnesses cannot possibly be true,
the vast majority of the witnesses in any case allege

having seen the spray planes engaged in spraying

operations. However, the indications in many of the

witness statements as to their locations show that

they were in areas from which it is simply

impossible, given the distances involved, that they
could have directly observed with the naked eye any

spraying operations occurring within Colombia, and

this irrespective of the vague nature of their

allegations as to the period in which they allege the

spraying took place.

415
See, ER, para. 2.4: “True, its effects on people might not necessarily
be fatal…”

202 other relatives. As discussed below, it is clear from

the scientific evidence, that the spray mixture is

incapable of causing death. Ecuador no longer asserts
415
the contrary, although nevertheless, it continues to

rely on the evidence of a number of witnesses who

assert that their relatives died as the result of the
spraying. Significantly, a number of the wi tnesses

who make allegations of deaths being caused by the

spraying are also those that assert direct overspray

and whose evidence is demonstrably also false in that

regard.

• Third, quite apart from the allegations of those

witnesses who state that they sa w planes emitting

“white smoke” which, as discussed above, in relation

to a number of the witnesses cannot possibly be true,
the vast majority of the witnesses in any case allege

having seen the spray planes engaged in spraying

operations. However, the indications in many of the

witness statements as to their locations show that

they were in areas from which it is simply

impossible, given the distances involved, that they
could have directly observed with the naked eye any

spraying operations occurring within Colombia, and

this irrespective of the vague nature of their

allegations as to the period in which they allege the

spraying took place.

415
See, ER, para. 2.4: “True, its effects on people might not necessarily
be fatal…”identified above which clearly undermine the credibility of the

witness statements, namely the allegations made by a number of

witnesses of direct overspray and the allegations that spraying
resulted in deaths.

3.81. In particular, it is notable that Ecuador, in maintaining its

reliance on the sworn declarations of the various witnesses, does

not rely on the evidence of each witness in its entirety, but rather
adopts what may charitably be characterised as a “pick and mix”

approach, choosing those bits which best suit its case and which

have not yet been shown to be unreliable . However, it is not
permissible for it to cherry-pick in this way those allegations of

the witnesses which support its case, whilst disregarding those

allegations which inconveniently do not accord with other

evidence, including, in particular, the spray data.

3.82. A critical feature of the witness statements, made at a

point when the spray data were not available to Ecuador, is their

deliberate vagueness as to the precise t ime and place of spray

events. Subsequently, in the Reply, Ecuador has sought to match
up news reports and other secondary evidence of spray events ,

with the spray data and claims in the witness statements .

However, on close analysis it will be seen that there is little or

no concordance between the various sources. Indeed, many
allegations of residents of the border region are clearly falsified

by the spray data.

3.83. Clearly, the statements of each of the witnesses (and the

claims of other individuals reported in the other, supposedly

204identified above which clearly undermine the credibility of the

witness statements, namely the allegations made by a number of

witnesses of direct overspray and the allegations that spraying
resulted in deaths.

3.81. In particular, it is notable that Ecuador, in maintaining its

reliance on the sworn declarations of the various witnesses, does

not rely on the evidence of each witness in its entirety, but rather
adopts what may charitably be characterised as a “pick and mix”

approach, choosing those bits which best suit its case and which

have not yet been shown to be unreliable . However, it is not
permissible for it to cherry-pick in this way those allegations of

the witnesses which support its case, whilst disregarding those

allegations which inconveniently do not accord with other

evidence, including, in particular, the spray data.

3.82. A critical feature of the witness statements, made at a

point when the spray data were not available to Ecuador, is their

deliberate vagueness as to the precise t ime and place of spray

events. Subsequently, in the Reply, Ecuador has sought to match
up news reports and other secondary evidence of spray events ,

with the spray data and claims in the witness statements .

However, on close analysis it will be seen that there is little or

no concordance between the various sources. Indeed, many
allegations of residents of the border region are clearly falsified

by the spray data.

3.83. Clearly, the statements of each of the witnesses (and the

claims of other individuals reported in the other, supposedly crossing the San Miguel River419d going from one
side of the border to other.”

Similarly, Witness 5, the evidence of whom has already been

touched upon above, claims that in 2001,

“I saw three white planes protected by hel icopters
flying over Salinas. The planes left behind a white

cloud of smoke that had a sour chemical -like odor.
[…] The planes did not respect our airspace. They
entered our territory as they were spraying to turn
around toward Colombia” 420

3.88. However, as note d above, as the spray flight data

demonstrates, at no point did any spray events take place over

Salinas, whether in the period claimed or at all. In 2001 the

distance from the closest spray event to the first alternative

location for Salinas was, 4,481 me tres, and to the second
421
alternative location, 3,050 metres.

3.89. Thus the allegations of Witnesses 4 and 5 as to spraying

over Salinas are clearly untrue.

3.90. Witness 5 is also a plaintiff in the Dyncorp proceedings;

the differences which result from the questionnaire completed

by him for the purposes of those proceedings, in comparison to

his statement in the present proceedings , are striking. For

instance, in contrast to the allegation in his statement in these

proceedings of spraying in 2001, the questionnaire in the
Dyncorp proceedings clearly alleges that the first incident of

419 EM, Vol. IV, Annex 192.
420 EM, Vol. IV, Annex 193.
421 See above para. 3.72.

206 crossing the San Miguel River419d going from one
side of the border to other.”

Similarly, Witness 5, the evidence of whom has already been

touched upon above, claims that in 2001,

“I saw three white planes protected by hel icopters
flying over Salinas. The planes left behind a white

cloud of smoke that had a sour chemical -like odor.
[…] The planes did not respect our airspace. They
entered our territory as they were spraying to turn
around toward Colombia” 420

3.88. However, as note d above, as the spray flight data

demonstrates, at no point did any spray events take place over

Salinas, whether in the period claimed or at all. In 2001 the

distance from the closest spray event to the first alternative

location for Salinas was, 4,481 me tres, and to the second
421
alternative location, 3,050 metres.

3.89. Thus the allegations of Witnesses 4 and 5 as to spraying

over Salinas are clearly untrue.

3.90. Witness 5 is also a plaintiff in the Dyncorp proceedings;

the differences which result from the questionnaire completed

by him for the purposes of those proceedings, in comparison to

his statement in the present proceedings , are striking. For

instance, in contrast to the allegation in his statement in these

proceedings of spraying in 2001, the questionnaire in the
Dyncorp proceedings clearly alleges that the first incident of

419 EM, Vol. IV, Annex 192.
420 EM, Vol. IV, Annex 193.
421 See above para. 3.72.who are also plaintiffs in the Dyncorp litigation. Her

questionnaire submitted for the purposes of those proceedings
indicates that her farm is approximately 2 km from the R iver,

and she states at various points within the questionnaire that

when she was allegedly sprayed she was “2 kilometres or 2000

meters” from the border between Ecuador and Colombia (i.e. the

river).424 In addition, t he location of the farm as being some 2

km from the River is confirmed by her sister, Witness 12 , who,
425
it appears, resides on the same farm . Strikingly, Witness 1 2

makes no allegation of direct overspray or overflight.

3.93. The two closest spraying events to San Francisco II in

early 2001 (and indeed in the entire year) occurred in late
January 2001, and were, in any case, about 1 km north of the

closest point on the R iver, and nearly 4 km north of San

Francisco II itself. 426 Put shortly, Witness 11’s allegat ion of

direct overspray cannot be true.

3.94. Witness 13, who states that he lives in La Cóndor ,

asserts that his farm is located “two or three kilometers from the

border with Colombia.” He goes on to allege, in terms which

parallel the assertions of Witness 11, that

424 CR, Vol. VI, Annex 69: Plaintiff Questionnaire, Arias/Quinteros v.
Dyncorp, D.D.C. (EM, Vol. IV, Annex 199, Witness 11).
425 CR, Vol. VI, Annex 70: Plaintiff Questionnaire, Arias/Quinteros v.
Dyncorp, D.D.C. (EM, Vol. IV, Annex 200, Witness 12).
426 Distance of the two closest spray lines to San Francisco II location:
3,860 metres and 4,880 metres; and distance to the Ecuadorian bank on the
border river: 955 metres, and 1500 metres (CR, Vol. II, Annex 1DIRAN,
Analysis of Certain Spraying Operational Aspects, pp. 76-77, Fig. 8; see also
CR, Vol. I, Appendix, pp. 84-85, Fig. 8).

208who are also plaintiffs in the Dyncorp litigation. Her

questionnaire submitted for the purposes of those proceedings
indicates that her farm is approximately 2 km from the R iver,

and she states at various points within the questionnaire that

when she was allegedly sprayed she was “2 kilometres or 2000

meters” from the border between Ecuador and Colombia (i.e. the

river).424 In addition, t he location of the farm as being some 2

km from the River is confirmed by her sister, Witness 12 , who,
425
it appears, resides on the same farm . Strikingly, Witness 1 2

makes no allegation of direct overspray or overflight.

3.93. The two closest spraying events to San Francisco II in

early 2001 (and indeed in the entire year) occurred in late
January 2001, and were, in any case, about 1 km north of the

closest point on the R iver, and nearly 4 km north of San

Francisco II itself. 426 Put shortly, Witness 11’s allegat ion of

direct overspray cannot be true.

3.94. Witness 13, who states that he lives in La Cóndor ,

asserts that his farm is located “two or three kilometers from the

border with Colombia.” He goes on to allege, in terms which

parallel the assertions of Witness 11, that

424 CR, Vol. VI, Annex 69: Plaintiff Questionnaire, Arias/Quinteros v.
Dyncorp, D.D.C. (EM, Vol. IV, Annex 199, Witness 11).
425 CR, Vol. VI, Annex 70: Plaintiff Questionnaire, Arias/Quinteros v.
Dyncorp, D.D.C. (EM, Vol. IV, Annex 200, Witness 12).
426 Distance of the two closest spray lines to San Francisco II location:
3,860 metres and 4,880 metres; and distance to the Ecuadorian bank on the
border river: 955 metres, and 1500 metres (CR, Vol. II, Annex 1DIRAN,
Analysis of Certain Spraying Operational Aspects, pp. 76-77, Fig. 8; see also
CR, Vol. I, Appendix, pp. 84-85, Fig. 8). 429
been over 2.5 kilometres from the nearest spray event. On

any view, Witness 13’s allegation that there was direct

overspray is unsustainable.

3.97. Finally, Witness 8, a resident of Corazón Orense, claims

in her statement made in 2009, that “it was about six or seven

years ago when I first saw the planes spraying over our
community” and that “we were able to see the planes flying over

the Ecuadorian side” . 430 However, that claim is once again

clearly false: in 2001, the distances of the two closest spray lines

to Corazón Orense location were 6,200 metres and 6,085 metres,

and the distance s of the spray lines to the Ecuadorian bank on

the border river w ere 1,850 metres and 1,130 metres ,

respectively. In 2002, the closest spray lines occurred 5,125

metres, 4,810 metres, and 4,640 metres from Corazón Orense.

Similarly, in 2003, the closest spray lines were even further

away, being 12,360 metres, and 10,830 metres di stant from
431
Corazón Orense.

(b) Allegations of deaths caused by exposure to drift

3.98. As to the allegations of deaths caused by spraying, in its

Reply, Ecuador has retreated even further from the allegations

made in the witness evidence than the cautious position taken in

the Memorial. In its Memorial , Ecuador relied on a number of

429
CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 78-79, Fig. 9; see also CR, Vol. I, Appendix, pp. 98-
99, Fig. 9.
430 EM, Vol. IV, Annex 196, p. 2 (emphasis added).
431 CR, Vol. II, Annex 18 , DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 68-73, Fig. 4-6; see also CR, Vol. I, Appendix , pp.
60-63, Fig. 4-6.

210 429
been over 2.5 kilometres from the nearest spray event. On

any view, Witness 13’s allegation that there was direct

overspray is unsustainable.

3.97. Finally, Witness 8, a resident of Corazón Orense, claims

in her statement made in 2009, that “it was about six or seven

years ago when I first saw the planes spraying over our
community” and that “we were able to see the planes flying over

the Ecuadorian side” . 430 However, that claim is once again

clearly false: in 2001, the distances of the two closest spray lines

to Corazón Orense location were 6,200 metres and 6,085 metres,

and the distance s of the spray lines to the Ecuadorian bank on

the border river w ere 1,850 metres and 1,130 metres ,

respectively. In 2002, the closest spray lines occurred 5,125

metres, 4,810 metres, and 4,640 metres from Corazón Orense.

Similarly, in 2003, the closest spray lines were even further

away, being 12,360 metres, and 10,830 metres di stant from
431
Corazón Orense.

(b) Allegations of deaths caused by exposure to drift

3.98. As to the allegations of deaths caused by spraying, in its

Reply, Ecuador has retreated even further from the allegations

made in the witness evidence than the cautious position taken in

the Memorial. In its Memorial , Ecuador relied on a number of

429
CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 78-79, Fig. 9; see also CR, Vol. I, Appendix, pp. 98-
99, Fig. 9.
430 EM, Vol. IV, Annex 196, p. 2 (emphasis added).
431 CR, Vol. II, Annex 18 , DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 68-73, Fig. 4-6; see also CR, Vol. I, Appendix , pp.
60-63, Fig. 4-6.3.101. For instance, Witness No. 11, a resident of San Francisco

II, alleges that as the result of spraying she lost two infant

daughters. As regards the death of her first daughter, she alleges

that both she and her daughter were directly oversprayed, and

continues that her daughter subsequently became sick and died
on 25 September 2001. 436 As for the second occasion, she

alleges that during a further period of spraying in 2003, her two-

month-old daughter died, and implies that the spraying was the

cause:

“When the planes returned, the diseases returned.
Two years later, during a period of spraying, my
two-month-old daughter died. She was born fat and

pretty, and before the sprayi ngs she never had any
problems. But after the sprayings, she became sick
with the same thing that my other daughter had, and
that many children of my neighbors had every time
the plane came -- vomiting, diarrhea and fever. I

had no money as to go to the doctor, and she d437
on ten September, two thousand and three.”

3.102. As Colombia showed in the Counter -Memorial and as

Ecuador now, apparently, accepts , the scientific evidence is
unanimous in showing that the components of the spray mixture,

in particular in the quantities in which they are contained in the

spray mixture, are incapable of causing death in humans even as

a result of direct overspray, and a fortiori as a result of drift.

3.103. Quite apart from the scientific evidence, there is reason
to cast doubt upon the assertion of Witness 11 both that she and

her first daughter were directly sprayed, and that her first

436
437 EM, Vol. IV, Annex 199.
Ibid.

2123.101. For instance, Witness No. 11, a resident of San Francisco

II, alleges that as the result of spraying she lost two infant

daughters. As regards the death of her first daughter, she alleges

that both she and her daughter were directly oversprayed, and

continues that her daughter subsequently became sick and died
on 25 September 2001. 436 As for the second occasion, she

alleges that during a further period of spraying in 2003, her two-

month-old daughter died, and implies that the spraying was the

cause:

“When the planes returned, the diseases returned.
Two years later, during a period of spraying, my
two-month-old daughter died. She was born fat and

pretty, and before the sprayi ngs she never had any
problems. But after the sprayings, she became sick
with the same thing that my other daughter had, and
that many children of my neighbors had every time
the plane came -- vomiting, diarrhea and fever. I

had no money as to go to the doctor, and she d437
on ten September, two thousand and three.”

3.102. As Colombia showed in the Counter -Memorial and as

Ecuador now, apparently, accepts , the scientific evidence is
unanimous in showing that the components of the spray mixture,

in particular in the quantities in which they are contained in the

spray mixture, are incapable of causing death in humans even as

a result of direct overspray, and a fortiori as a result of drift.

3.103. Quite apart from the scientific evidence, there is reason
to cast doubt upon the assertion of Witness 11 both that she and

her first daughter were directly sprayed, and that her first

436
437 EM, Vol. IV, Annex 199.
Ibid.3.107. However, the falsity of the claims of Witness 11 doesnot

stop there. The date of 25 September 2001 for the death of her
daughter is inconsistent with the information previously

provided by Witness 11 in her questionnaire in the Dyncorp

proceedings. In that questionnaire, her first daughter is alleged

to have died on 25 June 2001, having been born on 17 March

2001. 439 Those dates of birth and death are repeated in a

questionnaire filed for the purposes of a claim in the Dyncorp

proceedings by Witness 11 on behalf of her deceased
440
daughter.

3.108. However, given the location and timing of the spraying

in Colombia in the area close to San Francisco II, which, as
noted above, concluded in late January 2001, not only was there

clearly no overspray of Witness 11 and her daughter, as alleged

by Witness 11 in these proceedings, nor was there even any

spraying in Colom bia at any relevant time following the

alternative date for the birth of her daughter which might have

resulted in drift or which could have caused the harm alleged.

All of Witness 11’s allegations as to the death of her first

daughter as a result of spraying are clearly false.

3.109. As to the death of her second daughter, the questionnaire
filed by Witness 11 in the Dyncorp litigation at least accords

with her witness statement in the present proceedings, both as to

439 CR, Vol. VI, Annex 69: Plaintiff Questionnaire, Arias/Quinteros v.
Dyncorp, D.D.C. (EM, Vol. IV, Annex 199, Witness 11).
440 Included in: CR, Vol. VI, Annex 69: Plaintiff Questionnaires,
Arias/Quinteros v. Dyncorp, D.D.C. (EM, Vol. IV, Annex 199, Witness 11)
personally and on behalf of her deceased daughter.

2143.107. However, the falsity of the claims of Witness 11 doesnot

stop there. The date of 25 September 2001 for the death of her
daughter is inconsistent with the information previously

provided by Witness 11 in her questionnaire in the Dyncorp

proceedings. In that questionnaire, her first daughter is alleged

to have died on 25 June 2001, having been born on 17 March

2001. 439 Those dates of birth and death are repeated in a

questionnaire filed for the purposes of a claim in the Dyncorp

proceedings by Witness 11 on behalf of her deceased
440
daughter.

3.108. However, given the location and timing of the spraying

in Colombia in the area close to San Francisco II, which, as
noted above, concluded in late January 2001, not only was there

clearly no overspray of Witness 11 and her daughter, as alleged

by Witness 11 in these proceedings, nor was there even any

spraying in Colom bia at any relevant time following the

alternative date for the birth of her daughter which might have

resulted in drift or which could have caused the harm alleged.

All of Witness 11’s allegations as to the death of her first

daughter as a result of spraying are clearly false.

3.109. As to the death of her second daughter, the questionnaire
filed by Witness 11 in the Dyncorp litigation at least accords

with her witness statement in the present proceedings, both as to

439 CR, Vol. VI, Annex 69: Plaintiff Questionnaire, Arias/Quinteros v.
Dyncorp, D.D.C. (EM, Vol. IV, Annex 199, Witness 11).
440 Included in: CR, Vol. VI, Annex 69: Plaintiff Questionnaires,
Arias/Quinteros v. Dyncorp, D.D.C. (EM, Vol. IV, Annex 199, Witness 11)
personally and on behalf of her deceased daughter.confirmed by their respective questionnaires filed in the
Dyncorp litigation, which also show both gave the same address

in San Francisco II. 443

3.114. However, the evidence of the two sisters simply does not

accord. Witness 12 alleges spraying in 2002 and 2004, rather

than spraying in 2001 and 2003 as asserted by Witness 11.

3.115. Further, it is particularly striking tha t Witness 12 makes

no mention of the death of her nieces in her statement in these

proceedings. The closest she comes is her statement of her
recollection that “at least four babies in my community died” ,

although she is entirely unspecific as to the perio d in which this

is alleged to have occurred . She goes on to state “They did not

even last a week after the sprayings. They died within days of
444
each other”.

3.116. Clearly, if Witness 11 believed that the death of her two

daughters was caused by the spraying, one would have expected
that Witness 12, her sister, resident in the same community (and

apparently at the same address), would have made mention of

those deaths.

3.117. Other witnesses likewise make allegations that deaths

were caused by spraying. These claims aredemonstrably equally

false. Witness No. 14, also resident in San Francisco II, alleges

443 CR, Vol. VI, Annex 69: Plaintiff Questionnaire, Arias/Quinteros v.
Dyncorp, D.D.C. (EM, Vol. IV, Annex 199, Witness 11). CR, Vol. VI,
Annex 70: Plaintiff Questionnaire, Arias/Quinteros v. Dyncorp, D.D.C. (EM,
Vol. IV, Annex 200, Witness 12).
444 EM, Vol. IV, Annex 200.

216confirmed by their respective questionnaires filed in the
Dyncorp litigation, which also show both gave the same address

in San Francisco II. 443

3.114. However, the evidence of the two sisters simply does not

accord. Witness 12 alleges spraying in 2002 and 2004, rather

than spraying in 2001 and 2003 as asserted by Witness 11.

3.115. Further, it is particularly striking tha t Witness 12 makes

no mention of the death of her nieces in her statement in these

proceedings. The closest she comes is her statement of her
recollection that “at least four babies in my community died” ,

although she is entirely unspecific as to the perio d in which this

is alleged to have occurred . She goes on to state “They did not

even last a week after the sprayings. They died within days of
444
each other”.

3.116. Clearly, if Witness 11 believed that the death of her two

daughters was caused by the spraying, one would have expected
that Witness 12, her sister, resident in the same community (and

apparently at the same address), would have made mention of

those deaths.

3.117. Other witnesses likewise make allegations that deaths

were caused by spraying. These claims aredemonstrably equally

false. Witness No. 14, also resident in San Francisco II, alleges

443 CR, Vol. VI, Annex 69: Plaintiff Questionnaire, Arias/Quinteros v.
Dyncorp, D.D.C. (EM, Vol. IV, Annex 199, Witness 11). CR, Vol. VI,
Annex 70: Plaintiff Questionnaire, Arias/Quinteros v. Dyncorp, D.D.C. (EM,
Vol. IV, Annex 200, Witness 12).
444 EM, Vol. IV, Annex 200. the coffee crops on our farm, when the smoke came
and he saw a fine rain fall on the coffee leaves. He

had on a thin, short -sleeved with shirt and long
pants. The bumps appeared mostly on my husband’s
back, his skin peeled and he bled a lot. Since there
was no road then we had to go to Lago Agrio by
boat for treatment. He was taken to the clinic three
times. Despite the visits to the doctors, he was never

cured. The doctors treated him without knowing
what he had, because they did not understand what
it was, and he never got better; he could not go back
to work. He died on the 16 June 2002.” 447

3.119. It has been shown that the spray mixture does not result

in deaths, human or animal, even following direct overspray, so

this claim is belied by that consideration alone. However, purely
in the interest of showing the untruthfulness of the other

elements of the allegations of Witness 6 set out above, the claim

of Witness 6 has been analysed against the spray data.

3.120. Although Witness 6 is entirely unspecific as to the dates
of the alleged spraying in question, g iven the date of death of

her husband of 16 June 2002 and the close link which the

witness draws with the spraying , it must be supposed that the

spraying which allegedly caused his death must have takenplace

at some point during the first half of 2002. However, although
there was spraying from August 2002 onwards in Colombia

(albeit at a considerable distance to the north of the location of

Salinas) and there was r elatively light spraying during

September 2002, due north of Salinas , there was no spraying
during 2002 prior to August 2002. Further, t he previous

447
EM, Vol. IV, Annex 194.

218 the coffee crops on our farm, when the smoke came
and he saw a fine rain fall on the coffee leaves. He

had on a thin, short -sleeved with shirt and long
pants. The bumps appeared mostly on my husband’s
back, his skin peeled and he bled a lot. Since there
was no road then we had to go to Lago Agrio by
boat for treatment. He was taken to the clinic three
times. Despite the visits to the doctors, he was never

cured. The doctors treated him without knowing
what he had, because they did not understand what
it was, and he never got better; he could not go back
to work. He died on the 16 June 2002.” 447

3.119. It has been shown that the spray mixture does not result

in deaths, human or animal, even following direct overspray, so

this claim is belied by that consideration alone. However, purely
in the interest of showing the untruthfulness of the other

elements of the allegations of Witness 6 set out above, the claim

of Witness 6 has been analysed against the spray data.

3.120. Although Witness 6 is entirely unspecific as to the dates
of the alleged spraying in question, g iven the date of death of

her husband of 16 June 2002 and the close link which the

witness draws with the spraying , it must be supposed that the

spraying which allegedly caused his death must have takenplace

at some point during the first half of 2002. However, although
there was spraying from August 2002 onwards in Colombia

(albeit at a considerable distance to the north of the location of

Salinas) and there was r elatively light spraying during

September 2002, due north of Salinas , there was no spraying
during 2002 prior to August 2002. Further, t he previous

447
EM, Vol. IV, Annex 194. (3) T HE SPRAY DATA FALSIFIES THE ALLEGATIONS OF THE
WITNESSES

3.124. The present section responds to Ecuador’s treatment of
the evidence, in particular the witness evidence, in Chapter 4 of

its Reply, and its assertion that the spray data substantially

supports and corroborates t he allegations of the witnesses as to

the date and location of the spraying which they say that they

observed.

3.125. As already noted, a fundamental problem in responding

to the allegations of the witnesses as to spraying is that out of

the statements of the 38 Ecuadorian witnesses, only one

(Witness 11) expressly refers to a more or less precise period

(“early 2001”) in which spraying allegedly took place. But even

Witness 11 is studiously vague, givingno more precise than “the

beginning of 2001”.

3.126. Some greater precision as to dates of alleged spraying
can also be derived from the reference by Witness 11 to the

dates of death of her two daughters, and Witness 14 to the death

of his son. However, as discussed above, none of these

allegations withstands scrutiny w hen compared to the actual

dates and locations of spraying within Colombia. 449

3.127. The rest of the witnesses are studiously vague in their

references to the dates of spraying. Fif teen of the statements

449 Furthermore, the claim of Witness 14 in the Dyncorp litigation was
dismissed for failure to fill out a questionnaire, behaviour which is
inexplicable if his story was true. See CR, Vol. VI, Annex 62: Document
148, Dyncorp Case No. 1:07CV01042(RWR), United States District Court
for the District of Columbia, 18 Sep. 2009.

220 (3) T HE SPRAY DATA FALSIFIES THE ALLEGATIONS OF THE
WITNESSES

3.124. The present section responds to Ecuador’s treatment of
the evidence, in particular the witness evidence, in Chapter 4 of

its Reply, and its assertion that the spray data substantially

supports and corroborates t he allegations of the witnesses as to

the date and location of the spraying which they say that they

observed.

3.125. As already noted, a fundamental problem in responding

to the allegations of the witnesses as to spraying is that out of

the statements of the 38 Ecuadorian witnesses, only one

(Witness 11) expressly refers to a more or less precise period

(“early 2001”) in which spraying allegedly took place. But even

Witness 11 is studiously vague, givingno more precise than “the

beginning of 2001”.

3.126. Some greater precision as to dates of alleged spraying
can also be derived from the reference by Witness 11 to the

dates of death of her two daughters, and Witness 14 to the death

of his son. However, as discussed above, none of these

allegations withstands scrutiny w hen compared to the actual

dates and locations of spraying within Colombia. 449

3.127. The rest of the witnesses are studiously vague in their

references to the dates of spraying. Fif teen of the statements

449 Furthermore, the claim of Witness 14 in the Dyncorp litigation was
dismissed for failure to fill out a questionnaire, behaviour which is
inexplicable if his story was true. See CR, Vol. VI, Annex 62: Document
148, Dyncorp Case No. 1:07CV01042(RWR), United States District Court
for the District of Columbia, 18 Sep. 2009.sprayings in the subsequent years” . In its view , “with so many

intervening spray events, it is not sur prising that a witness did

not give the precise month when the first such event
454
occurred.” But this is disingenuous.

455
3.131. As noted above, none of the spray events between
2001 and 2002 were closer than 3 km from the village, and the

majority were much further away. Ecuador’s point might have

some force if what was at issue were m ultiple and repeated

instances of direct overspray of particular villages. However,

this did not occur , and there were no such incidents of
overspray, let alone on multiple occasions. Rather, given the

distance from the villages at which the closest spray events

occurred and the scientific evidence as to the lack of any
456
appreciable spray drift at such distances, the most the

villagers of San Francisco II might have been aware of was the
distant sound of Colombian planes and helicopters flying within

Colombian airspace.

3.132. In this context, prior to turning to deal with Ecuador’s

reliance on the evidence of the witnesses as to the specific

periods during which it is alleged that harm was suffered, i t is
worth putting the various allegations of the witnesses that they

observed spray planes into context. Putting to one side the

clearly untrue allegations of direct overspray made by a number

of the witnesses, the great majority of the remaining witnesses

454
455 ER, para. 3.41.
456 See above, paras. 3.93, 3.105, 3.106.
CR, Vol. II, Annexes 1: Hewitt Report - Response to Giles (2011);
2: Hewitt Spray Events Modeling (2011); 3: Solomon Report (2011).

222sprayings in the subsequent years” . In its view , “with so many

intervening spray events, it is not sur prising that a witness did

not give the precise month when the first such event
454
occurred.” But this is disingenuous.

455
3.131. As noted above, none of the spray events between
2001 and 2002 were closer than 3 km from the village, and the

majority were much further away. Ecuador’s point might have

some force if what was at issue were m ultiple and repeated

instances of direct overspray of particular villages. However,

this did not occur , and there were no such incidents of
overspray, let alone on multiple occasions. Rather, given the

distance from the villages at which the closest spray events

occurred and the scientific evidence as to the lack of any
456
appreciable spray drift at such distances, the most the

villagers of San Francisco II might have been aware of was the
distant sound of Colombian planes and helicopters flying within

Colombian airspace.

3.132. In this context, prior to turning to deal with Ecuador’s

reliance on the evidence of the witnesses as to the specific

periods during which it is alleged that harm was suffered, i t is
worth putting the various allegations of the witnesses that they

observed spray planes into context. Putting to one side the

clearly untrue allegations of direct overspray made by a number

of the witnesses, the great majority of the remaining witnesses

454
455 ER, para. 3.41.
456 See above, paras. 3.93, 3.105, 3.106.
CR, Vol. II, Annexes 1: Hewitt Report - Response to Giles (2011);
2: Hewitt Spray Events Modeling (2011); 3: Solomon Report (2011).could have observed in some detail aircraft flying at low

altitudes at these distances, or even f urther away. In relation to

spray events which took place at more than 1.2 km distant, this

is implausible; for events more than 3 km distant, it is simply
incredible. At distances greater than 3 km, it simply beggars

belief. Even if there were no vegetation such as would be liable

to obscure line s of sight, at such distances, there is no way in

which the witnesses could have seen the aircraft sufficiently

well so as to provide the detailed descriptions they give.

3.135. Moreover, as has already been noted, in contrast to The

Hague, the terrain in much of the relevant sector s of the border

region, including in the area of Putumayo immediately north of

Salinas and San Francisco II , is characterised by undulating,

gently rolling hills. Further, and in any case, as is clear from the

satellite imagery analysed in the report of Dr Evans, there is

substantial vegetation in the r elevant areas of the border “of
457
significant height” and the areas of coca crops sprayed by
Colombia are generally clearings surrounded by forest. The

evidence of Ecuador’s own experts is that canopy in the region

typicallyrises as high as at least 30 to 35m, with some emergent

trees rising as high as 50 or even 65m above ground level .58

All of these factors mean that it is implausible that individuals in

Ecuador could have observed the spray planes engaged in

spraying operations, at relatively low altitudes, unless they were

spraying relatively close to the border.

457 CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Dec. 2011, para. 4.9.
458 ER, Vol. II, Annex 4, pp. 18, 25.

224could have observed in some detail aircraft flying at low

altitudes at these distances, or even f urther away. In relation to

spray events which took place at more than 1.2 km distant, this

is implausible; for events more than 3 km distant, it is simply
incredible. At distances greater than 3 km, it simply beggars

belief. Even if there were no vegetation such as would be liable

to obscure line s of sight, at such distances, there is no way in

which the witnesses could have seen the aircraft sufficiently

well so as to provide the detailed descriptions they give.

3.135. Moreover, as has already been noted, in contrast to The

Hague, the terrain in much of the relevant sector s of the border

region, including in the area of Putumayo immediately north of

Salinas and San Francisco II , is characterised by undulating,

gently rolling hills. Further, and in any case, as is clear from the

satellite imagery analysed in the report of Dr Evans, there is

substantial vegetation in the r elevant areas of the border “of
457
significant height” and the areas of coca crops sprayed by
Colombia are generally clearings surrounded by forest. The

evidence of Ecuador’s own experts is that canopy in the region

typicallyrises as high as at least 30 to 35m, with some emergent

trees rising as high as 50 or even 65m above ground level .58

All of these factors mean that it is implausible that individuals in

Ecuador could have observed the spray planes engaged in

spraying operations, at relatively low altitudes, unless they were

spraying relatively close to the border.

457 CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Dec. 2011, para. 4.9.
458 ER, Vol. II, Annex 4, pp. 18, 25.In what follows, each of these periods will be dealt with in turn,

examining in detail and comparing the concrete evidence

contained in the spray data as to where spraying in fact occurred

with the allegations of the witnesses relied upon by Ecuador, as
well as the other evidence which supposedl y corroborates the

allegations of the witnesses.

3.139. In that regard, it is to be noted that Ecuador’s criteria for

identifying a match or coincidence between the allegations of
the witnesses and the spray data appear to be exceptionally

elastic. As to the location of the spray events, Ecuador refers to

Figures 2.13 and 2.14 and suggests that “all the places the

witnesses identified are located in very close proximity to the
areas where the recently -acquired flight data confirm that

spraying were being conducted” .464 But the illustrations in

question show the locations of spraying over the entire period

2000-2008 within 10 km of the border. It is entirely unsurprising

that the locations specified by the witnesses should be in the
general area within Ecuador ian territory in which one or more

spray events took place in adjacent Colombian territory over

such a long period. However, any such supposed “coincidence”

between the location s alleged by the witnesses and the actual
location of spraying, as recorded in the spra y data, over a period

of some eight years, proves nothing at all.

3.140. In fact, when the spray data is analysed in detail (rather

than in the broad-brush manner utilized by Ecuador ), instead of
supporting their allegations, it shows that the vast majority of

464
ER, para. 3.38.

226In what follows, each of these periods will be dealt with in turn,

examining in detail and comparing the concrete evidence

contained in the spray data as to where spraying in fact occurred

with the allegations of the witnesses relied upon by Ecuador, as
well as the other evidence which supposedl y corroborates the

allegations of the witnesses.

3.139. In that regard, it is to be noted that Ecuador’s criteria for

identifying a match or coincidence between the allegations of
the witnesses and the spray data appear to be exceptionally

elastic. As to the location of the spray events, Ecuador refers to

Figures 2.13 and 2.14 and suggests that “all the places the

witnesses identified are located in very close proximity to the
areas where the recently -acquired flight data confirm that

spraying were being conducted” .464 But the illustrations in

question show the locations of spraying over the entire period

2000-2008 within 10 km of the border. It is entirely unsurprising

that the locations specified by the witnesses should be in the
general area within Ecuador ian territory in which one or more

spray events took place in adjacent Colombian territory over

such a long period. However, any such supposed “coincidence”

between the location s alleged by the witnesses and the actual
location of spraying, as recorded in the spra y data, over a period

of some eight years, proves nothing at all.

3.140. In fact, when the spray data is analysed in detail (rather

than in the broad-brush manner utilized by Ecuador ), instead of
supporting their allegations, it shows that the vast majority of

464
ER, para. 3.38.actually sworn, it is equally plausible that the witnesses may

have been referring to 2000. Accordingly , where appropriate,

Colombia has analysed the allegations of the witnesses as

against the spray events relating to each of2000, 2001 and 2002.

3.142. From the analysis, it is apparent that, in a large number
of cases, either there was no spraying at all during the period

alleged, or , insofar as there was some spraying, it was at

considerable distances from the location at which the witnesses

allege that they witnessed or suffered the effects of spraying.

3.143. In relation to those cases where there was some spraying
in the immediate vicinity, corresponding to the broad time

periods alleged by the witnesses, Dr Hewitt’s modeling of the

closest spray events show s that the quantity of spray mixture

deposited at the closest point within Ecuadorian territory was in
466
all cases nearly zero and thereforeinsignificant.

(a) Sucumbíos December 2000-February 2001

3.144. In attempting to make out its case as to damage cau sed
by spraying in Sucumbíos during “the very end of 2000 and

early 2001”, Ecuador refers to the depiction of spray flights in

Figure 3.1 of the Reply, and, relying on the Hansman & Mena

report, asserts that there were “at least 3,276 spray flights within

10 kilometres of Ecuador in December 2000 and 8,228 more in
January 2001”. 467

466
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), 4-.
467Table of Model Results.
ER, para. 3.9.

228actually sworn, it is equally plausible that the witnesses may

have been referring to 2000. Accordingly , where appropriate,

Colombia has analysed the allegations of the witnesses as

against the spray events relating to each of2000, 2001 and 2002.

3.142. From the analysis, it is apparent that, in a large number
of cases, either there was no spraying at all during the period

alleged, or , insofar as there was some spraying, it was at

considerable distances from the location at which the witnesses

allege that they witnessed or suffered the effects of spraying.

3.143. In relation to those cases where there was some spraying
in the immediate vicinity, corresponding to the broad time

periods alleged by the witnesses, Dr Hewitt’s modeling of the

closest spray events show s that the quantity of spray mixture

deposited at the closest point within Ecuadorian territory was in
466
all cases nearly zero and thereforeinsignificant.

(a) Sucumbíos December 2000-February 2001

3.144. In attempting to make out its case as to damage cau sed
by spraying in Sucumbíos during “the very end of 2000 and

early 2001”, Ecuador refers to the depiction of spray flights in

Figure 3.1 of the Reply, and, relying on the Hansman & Mena

report, asserts that there were “at least 3,276 spray flights within

10 kilometres of Ecuador in December 2000 and 8,228 more in
January 2001”. 467

466
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), 4-.
467Table of Model Results.
ER, para. 3.9. 469
both residents of Salinas. However, b oth witnesses are
entirely vague as to the period in 2001 during which they allege

that the spraying to which they refer took place; Ecuador’s

invocation of their evidence as supporting its allega tions of

damage being suffered in Salinas in either late 2000 or early

2001, as opposed to any other period within 2001, is entirely

opportunistic and speculative.

3.148. In addition, the evidence of both witnesses is
demonstrably untrue insofar as both make alle gations of direct

overspraying of Salinas. Although Ecuador glosses over the se

allegations, it is clear even from Ecuador’s own map, based on

the spray data (ER Fig. 3.1), that the actual spraying during the

period December 2000 to February 2001 was at all points

entirely within Colombia, and that the spraying took place some

considerable distance from Salinas.

3.149. Although Ecuador suggests that Salinas is “a community
less than 1 kilometre from the spraying”, on Figure 3.1 Salinas

is shown as located within th e salmon-coloured band indicating

a distance of 2 -3 km from the closest sp ray line . This is

confirmed by Colombia’s own analysis of the spray data. As

regards the spraying in Colombia in 2001, using the first
470
alternative location for Salinas, the distance from the closest

spray line (flown on 4 January 2001) to the closest point on the
Ecuadorian bank of the river was over 3 km, and the distance to

469 ER, paras. 3.11-3.12.
470 See above, para. 3.71.

230 469
both residents of Salinas. However, b oth witnesses are
entirely vague as to the period in 2001 during which they allege

that the spraying to which they refer took place; Ecuador’s

invocation of their evidence as supporting its allega tions of

damage being suffered in Salinas in either late 2000 or early

2001, as opposed to any other period within 2001, is entirely

opportunistic and speculative.

3.148. In addition, the evidence of both witnesses is
demonstrably untrue insofar as both make alle gations of direct

overspraying of Salinas. Although Ecuador glosses over the se

allegations, it is clear even from Ecuador’s own map, based on

the spray data (ER Fig. 3.1), that the actual spraying during the

period December 2000 to February 2001 was at all points

entirely within Colombia, and that the spraying took place some

considerable distance from Salinas.

3.149. Although Ecuador suggests that Salinas is “a community
less than 1 kilometre from the spraying”, on Figure 3.1 Salinas

is shown as located within th e salmon-coloured band indicating

a distance of 2 -3 km from the closest sp ray line . This is

confirmed by Colombia’s own analysis of the spray data. As

regards the spraying in Colombia in 2001, using the first
470
alternative location for Salinas, the distance from the closest

spray line (flown on 4 January 2001) to the closest point on the
Ecuadorian bank of the river was over 3 km, and the distance to

469 ER, paras. 3.11-3.12.
470 See above, para. 3.71.vegetation, the actual height and altitude of the spray events, and
a worst case scenario for meteorological conditions . Even on

that basis, the predicted levels of deposition on the Ecuadorian

bank of the border river from the closest events in 2001 as a

result of t hat modeling are 0.106 g/ha and 0.167 g/ha

respectively, orders of magnitude below the relevant level s of
473
concern for either plants or the most sensitive wildlife.

3.152. To put the matter beyond doubt, i nsofar as the witnesses
might be mistaken as to the year, and in fact be referring to

spraying in 2000, or even in 2002, similarly low values resulted

from Dr Hewitt’s modeling. Of the spray events in 2000, the two

closest lines were identified at distances of just under 3.9 km,

and a little over 2 km, from the Ecuadorian bank of the border

river. The deposition values produced by the model ing were of
474
0.01 g/ha and 0.099 g/ha, respectively. Similarly, in 2002, the
two closest lines were at distances of 2.5 km, and over 1.7 km

from the closest point on the Ecuad orian bank of the river ,

giving rise to deposition values of 0.11 g/ha and 0.015 g/ha,

respectively. 475 Again, those deposition values are an order (or

several orders) of magnitude below even the most conservative

level of concern advanced by Ecuador, and e ven further below

what Colombia maintains is an appropriate level of concern.

3.153. It bears emphasising that the level of deposition modeled
by Dr Hewitt is the predicted deposition from the nearest spray

473 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 51 and 44.
474 Ibid., rows 69, and 53.
475 Ibid., rows 49, and 68 (NB Appendix: Witnesses 2 and 3).

232vegetation, the actual height and altitude of the spray events, and
a worst case scenario for meteorological conditions . Even on

that basis, the predicted levels of deposition on the Ecuadorian

bank of the border river from the closest events in 2001 as a

result of t hat modeling are 0.106 g/ha and 0.167 g/ha

respectively, orders of magnitude below the relevant level s of
473
concern for either plants or the most sensitive wildlife.

3.152. To put the matter beyond doubt, i nsofar as the witnesses
might be mistaken as to the year, and in fact be referring to

spraying in 2000, or even in 2002, similarly low values resulted

from Dr Hewitt’s modeling. Of the spray events in 2000, the two

closest lines were identified at distances of just under 3.9 km,

and a little over 2 km, from the Ecuadorian bank of the border

river. The deposition values produced by the model ing were of
474
0.01 g/ha and 0.099 g/ha, respectively. Similarly, in 2002, the
two closest lines were at distances of 2.5 km, and over 1.7 km

from the closest point on the Ecuad orian bank of the river ,

giving rise to deposition values of 0.11 g/ha and 0.015 g/ha,

respectively. 475 Again, those deposition values are an order (or

several orders) of magnitude below even the most conservative

level of concern advanced by Ecuador, and e ven further below

what Colombia maintains is an appropriate level of concern.

3.153. It bears emphasising that the level of deposition modeled
by Dr Hewitt is the predicted deposition from the nearest spray

473 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 51 and 44.
474 Ibid., rows 69, and 53.
475 Ibid., rows 49, and 68 (NB Appendix: Witnesses 2 and 3).Ecuador’s witnesses specify exactly where they were when the

sprayings took place”, there are difficulties in locating exactly

(or even approximately) where the witnes s allegedly was at the

relevant time. Although she says that she lives in San Francisco

I (at village located some 2 km from the border with Colombia,

in close proximity to the San Francisco II community ), she says
that she was “about a kilometre” from the border river when she

first observed the planes and spraying, and that her house is

located “closer to the river”. It would thus appear not to be

located in the San Francisco I community at all.

3.157. On any view, her evidence is not credible . In 2000, the

closest spray event s, which were isolated, were over 1.8 km
away from the closest point on the Ecuadorian bank of the

border river in the region of San Francisco I . If the witness is to

be taken to be alleging spraying in 2001, the closest spray

events, again isolated, were 955 meters from the closest point on

the border river . On her own evidence that she was

approximately 1 km from the river, Witness 18 must have been
at least 2 km distant from the closest spray events.

3.158. The satellite imagery analysed by Dr Evans demonstrates

that there is substantial vegetation in this area,478 which has the

effect of substantially reducing any drift from spraying within

Colombia. And there was no or virtually no drift.

478
CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by Dr
Barry M. Evans, Dec. 2011, para. 4.9.

234Ecuador’s witnesses specify exactly where they were when the

sprayings took place”, there are difficulties in locating exactly

(or even approximately) where the witnes s allegedly was at the

relevant time. Although she says that she lives in San Francisco

I (at village located some 2 km from the border with Colombia,

in close proximity to the San Francisco II community ), she says
that she was “about a kilometre” from the border river when she

first observed the planes and spraying, and that her house is

located “closer to the river”. It would thus appear not to be

located in the San Francisco I community at all.

3.157. On any view, her evidence is not credible . In 2000, the

closest spray event s, which were isolated, were over 1.8 km
away from the closest point on the Ecuadorian bank of the

border river in the region of San Francisco I . If the witness is to

be taken to be alleging spraying in 2001, the closest spray

events, again isolated, were 955 meters from the closest point on

the border river . On her own evidence that she was

approximately 1 km from the river, Witness 18 must have been
at least 2 km distant from the closest spray events.

3.158. The satellite imagery analysed by Dr Evans demonstrates

that there is substantial vegetation in this area,478 which has the

effect of substantially reducing any drift from spraying within

Colombia. And there was no or virtually no drift.

478
CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by Dr
Barry M. Evans, Dec. 2011, para. 4.9. to the closest event forming part of the 2002

spraying would not have been greater than 0.75
481
g/ha. Again, this is still order s of magnitude

below the predicted levels of concern for both

plants and for the most sensitive wildlife.

3.160. In any case, the truthfulness of the evidence of Witness

18 is called into question by the questionnaire and other

documents she filed in the Dyncorp proceedings, which casts

doubt on a number of her statements:

• Although in her witness statement in the pres ent

proceedings, Witness 18 states that she has lived

in San Francisco I for 25 years, the Questionnaire

filed in the Dyncorp proceedings states that she
lived in Chimborazo province until 2000. 482

Chimborazo is located to the south of Quito, and

almost 200 km from the border with Colombia .

Similarly, h er identity card annexed to her

unredacted statement in these proceedings
indicates that her place of birth is San José de

Chimbo, a town in Bol ívar province,

neighbouring Chimborazo province, and located

approximately 170 km south-southwest of Quito.

481
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 16, and 30 (NB: Appendix, Witnesses 12
482 13).
CR, Vol. VI, Annex 72: Plaintiff Questionnaire, Arias/Quinteros v.
Dyncorp, D.D.C. (EM, Vol. IV, Annex 204, Witness 18).

236 to the closest event forming part of the 2002

spraying would not have been greater than 0.75
481
g/ha. Again, this is still order s of magnitude

below the predicted levels of concern for both

plants and for the most sensitive wildlife.

3.160. In any case, the truthfulness of the evidence of Witness

18 is called into question by the questionnaire and other

documents she filed in the Dyncorp proceedings, which casts

doubt on a number of her statements:

• Although in her witness statement in the pres ent

proceedings, Witness 18 states that she has lived

in San Francisco I for 25 years, the Questionnaire

filed in the Dyncorp proceedings states that she
lived in Chimborazo province until 2000. 482

Chimborazo is located to the south of Quito, and

almost 200 km from the border with Colombia .

Similarly, h er identity card annexed to her

unredacted statement in these proceedings
indicates that her place of birth is San José de

Chimbo, a town in Bol ívar province,

neighbouring Chimborazo province, and located

approximately 170 km south-southwest of Quito.

481
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 16, and 30 (NB: Appendix, Witnesses 12
482 13).
CR, Vol. VI, Annex 72: Plaintiff Questionnaire, Arias/Quinteros v.
Dyncorp, D.D.C. (EM, Vol. IV, Annex 204, Witness 18). 483
“specifically referred to sprayings beginning in 2001”.

However, as is clear from Ecuador’s reference to Witnesses 2, 3

and 9 in the foot note accompanying the subsequent strained

argument that those witnesses who refer to spraying
commencing “seven or eight years ago” must be taken to have

been referring to either 2001 or 2002, and that those allegations

should be taken to be sufficie ntly precise to place reliance on

their evidence, 484 Witnesses 2, 3 and 9 did not “specifically refer

to sprayings beginning in 2001”. Rather, this is Ecuador’s

inference from their evidence.

3.162. In any case, as shown in the Appendix, even if the

evidence of these witnesses is understood as alleging spraying in

2001, the deposition levels from the closest spray events are still
485
tiny, and could not have caused the harms alleged.

3.163. Strikingly, Ecuador does not expressly refer to the

evidence of Witness 11 in Chapte r 3 in relation to spraying in

Sucumbíos in 2001 except for the bare proposition that she
486
states that there was spraying in 2001. This is despite the fact
that she specifically alleges having experienced the effects of

spraying in 2001, San Francisco is located relatively close to

Salinas, being located some 6.4 km to the southeast , and the

evidence of Witness 18 from the neighbouring village of San

Francisco I is relied upon . By contrast, Ecuador does rely on

483 ER, para. 3.39.
484 ER, para. 3.41, fn. 481.
485 CR, Vol. I, Appendix, pp. 18-19, 28-29, 68-69 and 84-85; Fig. 2, 4,
and 8.
486 ER, para. 3.39.

238 483
“specifically referred to sprayings beginning in 2001”.

However, as is clear from Ecuador’s reference to Witnesses 2, 3

and 9 in the foot note accompanying the subsequent strained

argument that those witnesses who refer to spraying
commencing “seven or eight years ago” must be taken to have

been referring to either 2001 or 2002, and that those allegations

should be taken to be sufficie ntly precise to place reliance on

their evidence, 484 Witnesses 2, 3 and 9 did not “specifically refer

to sprayings beginning in 2001”. Rather, this is Ecuador’s

inference from their evidence.

3.162. In any case, as shown in the Appendix, even if the

evidence of these witnesses is understood as alleging spraying in

2001, the deposition levels from the closest spray events are still
485
tiny, and could not have caused the harms alleged.

3.163. Strikingly, Ecuador does not expressly refer to the

evidence of Witness 11 in Chapte r 3 in relation to spraying in

Sucumbíos in 2001 except for the bare proposition that she
486
states that there was spraying in 2001. This is despite the fact
that she specifically alleges having experienced the effects of

spraying in 2001, San Francisco is located relatively close to

Salinas, being located some 6.4 km to the southeast , and the

evidence of Witness 18 from the neighbouring village of San

Francisco I is relied upon . By contrast, Ecuador does rely on

483 ER, para. 3.39.
484 ER, para. 3.41, fn. 481.
485 CR, Vol. I, Appendix, pp. 18-19, 28-29, 68-69 and 84-85; Fig. 2, 4,
and 8.
486 ER, para. 3.39.community and makes sweeping and tendentious generalisations
490
based on the spray data figures. However, as set out in the

Appendix, in all relevant years, the sprayings were conducted at

distances and under conditions that, according to the scientific
evidence, would have resulted in zero or insignificant deposit .

Therefore, the damages alleged by Ecuador, which do not even

occur under direct overspray 491could not have taken place.

3.167. Using the same tactics employed elsewhere in its Reply,

Ecuador vastly overstates the number of relevant spray events

flown in the region of the Cofá n-Bermejo Reserve, including all

of those found in an exorbitant area within Colombian territory .

It claims th at “[i]n 2002, there were more than 8,950 spray

flights within 10 kilometres of the Reserve”, and that between

2000 and 2008 there were more than 12,400 spray flights within

10 kilometres of the Reserve, and more than one thousand
492
within just 2 kilometres .” However, spray events at such

distances are irrelevant.

3.168. It should be stressed that, pursuant to Decree 1843 of
1991, 493 which is still in force, the protective strip provided for

in Colombian law for aerial spraying of herbicides is 100 metres

in the vicinity of human settlements, bodies of water and natural

parks, and not 2 kilometres as Ecuador would have the Court

490
ER, paras. 2.173-2.176.
491 See above Chapter 2, Section B. The Spray M ixture, and paras.
3.349, 3.367 and 3.378 below; CR Vol. V, Annexes 56 A -C. See also, CCM,
paras. 7.75, 7.79, 7.149, 7.161 and 9.142; Vol. II, Annexes 116 (CICAD I)
and 131 A-I (CICAD II).
492 ER, para. 3.81.
493 CCM, Vol. II, Annex 30.

240community and makes sweeping and tendentious generalisations
490
based on the spray data figures. However, as set out in the

Appendix, in all relevant years, the sprayings were conducted at

distances and under conditions that, according to the scientific
evidence, would have resulted in zero or insignificant deposit .

Therefore, the damages alleged by Ecuador, which do not even

occur under direct overspray 491could not have taken place.

3.167. Using the same tactics employed elsewhere in its Reply,

Ecuador vastly overstates the number of relevant spray events

flown in the region of the Cofá n-Bermejo Reserve, including all

of those found in an exorbitant area within Colombian territory .

It claims th at “[i]n 2002, there were more than 8,950 spray

flights within 10 kilometres of the Reserve”, and that between

2000 and 2008 there were more than 12,400 spray flights within

10 kilometres of the Reserve, and more than one thousand
492
within just 2 kilometres .” However, spray events at such

distances are irrelevant.

3.168. It should be stressed that, pursuant to Decree 1843 of
1991, 493 which is still in force, the protective strip provided for

in Colombian law for aerial spraying of herbicides is 100 metres

in the vicinity of human settlements, bodies of water and natural

parks, and not 2 kilometres as Ecuador would have the Court

490
ER, paras. 2.173-2.176.
491 See above Chapter 2, Section B. The Spray M ixture, and paras.
3.349, 3.367 and 3.378 below; CR Vol. V, Annexes 56 A -C. See also, CCM,
paras. 7.75, 7.79, 7.149, 7.161 and 9.142; Vol. II, Annexes 116 (CICAD I)
and 131 A-I (CICAD II).
492 ER, para. 3.81.
493 CCM, Vol. II, Annex 30. • Witness 31 states that his two -house, nine -person

community is located an hour -and-a-half’s walking

distance from the Colombian location of San José;

• as results from the identity cards annexed to the ir

unredacted witness statements, Witness 29 is the son of

Witnesses 26 and 27, and, given his age, it is to be
presumed that he lived with his parents at the relevant

time.

3.170. The area that c orresponds to all of these facts is the

north-eastern part of the Cofán-Bermejo reserve on the banks of

the San Miguel river abutting the border with Colombia . That
area is the same as that for which lines are depicted in the

vicinity of the Cofán reserve, in Figure 2.11 in the Reply.

3.171. However, comparison with the spray data shows that the

allegations of the witnesses cannot be true. There was no
spraying anywhere sufficiently close to the northern border of

the Cofán-Bermejo reserve in each of 2000, 2001, 2003, 2005

and 2006. As for the years 2002, 2004 and 2007:

• in 2002, there was spraying to the north of the

river; however, the closest spray line in the area of

the reserve in which the witnesses appear to have

resided was nevertheless more than 393m from the
closest point on the Ecuadorian river bank;

• similarly, in 2004, although there was again

spraying north of the river, the closest line in the
spraying near the relevant part of the border was

242 • Witness 31 states that his two -house, nine -person

community is located an hour -and-a-half’s walking

distance from the Colombian location of San José;

• as results from the identity cards annexed to the ir

unredacted witness statements, Witness 29 is the son of

Witnesses 26 and 27, and, given his age, it is to be
presumed that he lived with his parents at the relevant

time.

3.170. The area that c orresponds to all of these facts is the

north-eastern part of the Cofán-Bermejo reserve on the banks of

the San Miguel river abutting the border with Colombia . That
area is the same as that for which lines are depicted in the

vicinity of the Cofán reserve, in Figure 2.11 in the Reply.

3.171. However, comparison with the spray data shows that the

allegations of the witnesses cannot be true. There was no
spraying anywhere sufficiently close to the northern border of

the Cofán-Bermejo reserve in each of 2000, 2001, 2003, 2005

and 2006. As for the years 2002, 2004 and 2007:

• in 2002, there was spraying to the north of the

river; however, the closest spray line in the area of

the reserve in which the witnesses appear to have

resided was nevertheless more than 393m from the
closest point on the Ecuadorian river bank;

• similarly, in 2004, although there was again

spraying north of the river, the closest line in the
spraying near the relevant part of the border was “While significant changes in vegetation cover and
condition may be observed in the Republic of
Colombia in late 2002 near the Cofán- Bermejo
Ecological Reserve – some of which changes are

clearly due to the PECIG spraying that took place in
Colombia during August, September and October of
2002 – there are no similar changes reflected on the
Ecuadorian side in the area encompassed by the
497
Cofán-Bermejo Ecological Reserve.”

In reaching that conclusion, Dr Evans conducted a close review

of the entire visible boundary of the reserve and, with one

exception, found no signs of any ill -effects on vegetation within
Ecuadorian territory. 498

3.174. The sole exception identified by Dr Evans related to a

small plot of land in the western part of the area to the north of

the border of the reserve (away from the area of the reserve i n

which Witnesses 26, 27, 29 and 31 are presum ed to have lived),

which had changed from vegetated to unvegetated in the time

between the two available satellite images, during which time

there had been spraying in the immediate vicinity across the

river in Colombia. In relation to that specific plot, Dr Hewitt
was requested to model the projected deposition rates for all

relevant spray lines in the vicinity . The output of the model ing

was as follows:

• Row 22: line sprayed on 22 September 2002. Distance to

the Ecuadorian bank on the border river: 169 m. Deposit:

0.633 g/ha;

497 CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Dec. 2011, para. 1.3.
498 Ibid., para. 3.47.

244 “While significant changes in vegetation cover and
condition may be observed in the Republic of
Colombia in late 2002 near the Cofán- Bermejo
Ecological Reserve – some of which changes are

clearly due to the PECIG spraying that took place in
Colombia during August, September and October of
2002 – there are no similar changes reflected on the
Ecuadorian side in the area encompassed by the
497
Cofán-Bermejo Ecological Reserve.”

In reaching that conclusion, Dr Evans conducted a close review

of the entire visible boundary of the reserve and, with one

exception, found no signs of any ill -effects on vegetation within
Ecuadorian territory. 498

3.174. The sole exception identified by Dr Evans related to a

small plot of land in the western part of the area to the north of

the border of the reserve (away from the area of the reserve i n

which Witnesses 26, 27, 29 and 31 are presum ed to have lived),

which had changed from vegetated to unvegetated in the time

between the two available satellite images, during which time

there had been spraying in the immediate vicinity across the

river in Colombia. In relation to that specific plot, Dr Hewitt
was requested to model the projected deposition rates for all

relevant spray lines in the vicinity . The output of the model ing

was as follows:

• Row 22: line sprayed on 22 September 2002. Distance to

the Ecuadorian bank on the border river: 169 m. Deposit:

0.633 g/ha;

497 CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Dec. 2011, para. 1.3.
498 Ibid., para. 3.47.there is anything to be added to supplement what Colombia said
502
in the Counter-Memorial, Colombia is happy to do so here.

3.178. The first and general point is that those reports are no
more reliable than the witness statements . They do not directly

document the harm suffered in the relevant areas, but are based

on interviews with local residents, collected some time after the

alleged events.

3.179. As regards the June 2001 report by Acción Ecológica, 503

the extravagant allegations of the border residents as to the

effects of the spraying, on which the drafters of the report based

their conclusions, lack any scientific basis. As shown in Chapter

2, and discussed further below, the spray mixture does not cause
the effects alleged and this further highlights the implausibility

of the report’s assertions, since it mentions the considerable

distances at which the alleged effects are said to have occurred.

Indeed, it refers to people located 5 or 6 kilometres from the

alleged location of the spraying as reporting “ the death of 25

calves and 9 cows that miscarried during the sprayings”, and to

others, located between 8 and 10 kilometres awa y, as having
504
reported “the death of 7 cows from a total 11”. This is

scientifically impossible.

3.180. Moreover, those allegations are on their face clearly
unreliable when compared with the actual dates and locations of

spraying in the relevant period. In parti cular, in a passage not

502 Cf. CCM, paras. 1.29-1.30, 7.123, 7.142, 7.151, 7.162-7.163, 7.182.
503 EM, Vol. IV, Annex 161.
504 Ibid., p. 10.

246there is anything to be added to supplement what Colombia said
502
in the Counter-Memorial, Colombia is happy to do so here.

3.178. The first and general point is that those reports are no
more reliable than the witness statements . They do not directly

document the harm suffered in the relevant areas, but are based

on interviews with local residents, collected some time after the

alleged events.

3.179. As regards the June 2001 report by Acción Ecológica, 503

the extravagant allegations of the border residents as to the

effects of the spraying, on which the drafters of the report based

their conclusions, lack any scientific basis. As shown in Chapter

2, and discussed further below, the spray mixture does not cause
the effects alleged and this further highlights the implausibility

of the report’s assertions, since it mentions the considerable

distances at which the alleged effects are said to have occurred.

Indeed, it refers to people located 5 or 6 kilometres from the

alleged location of the spraying as reporting “ the death of 25

calves and 9 cows that miscarried during the sprayings”, and to

others, located between 8 and 10 kilometres awa y, as having
504
reported “the death of 7 cows from a total 11”. This is

scientifically impossible.

3.180. Moreover, those allegations are on their face clearly
unreliable when compared with the actual dates and locations of

spraying in the relevant period. In parti cular, in a passage not

502 Cf. CCM, paras. 1.29-1.30, 7.123, 7.142, 7.151, 7.162-7.163, 7.182.
503 EM, Vol. IV, Annex 161.
504 Ibid., p. 10. times of the spraying, and as to the periods during
which it took place.

• Third, the allegations of the inhabitants of Nuevo

Mundo of spraying in February and March 2001 (and

of the inhabitants of San Francisco of spraying in
February 2001) are also inconsistent with the dates of

actual spr aying, as recorded in the spray data.

Spraying in the region concluded on 28 January

2001, with the closest instances of spraying due north

of the communities taking place on 27 J anuary 2001

at a minimum distance of nearly four kilometres

from San Francisco II, and between 1 and 1.5 km
from the Ecuadorian bank on the border river. 508In

February, sprayings were conducted east of that area,

more than 9 km away.

3.182. Given those inaccuracies, the report’s conclusion, relied
upon by Ecuador as to the existence of “a direct temporal

relation between the fumigations and the appearance of the

sicknesses” 509 cannot be relied upon.

3.183. Ecuador likewise relies on the CONAIE et al . report

from July 2001, and in particular the “section summarizing the

testimonies of the local populations” which Ecuador suggests

“in all material respects parallels the witness statements Ecuador

508 See above para. 3.93, fn. 426.
509 ER, para. 3.16, referring to EM, para. 3.15 which quotes EM, Vol.
IV, Annex 161, p. 11.

248 times of the spraying, and as to the periods during
which it took place.

• Third, the allegations of the inhabitants of Nuevo

Mundo of spraying in February and March 2001 (and

of the inhabitants of San Francisco of spraying in
February 2001) are also inconsistent with the dates of

actual spr aying, as recorded in the spray data.

Spraying in the region concluded on 28 January

2001, with the closest instances of spraying due north

of the communities taking place on 27 J anuary 2001

at a minimum distance of nearly four kilometres

from San Francisco II, and between 1 and 1.5 km
from the Ecuadorian bank on the border river. 508In

February, sprayings were conducted east of that area,

more than 9 km away.

3.182. Given those inaccuracies, the report’s conclusion, relied
upon by Ecuador as to the existence of “a direct temporal

relation between the fumigations and the appearance of the

sicknesses” 509 cannot be relied upon.

3.183. Ecuador likewise relies on the CONAIE et al . report

from July 2001, and in particular the “section summarizing the

testimonies of the local populations” which Ecuador suggests

“in all material respects parallels the witness statements Ecuador

508 See above para. 3.93, fn. 426.
509 ER, para. 3.16, referring to EM, para. 3.15 which quotes EM, Vol.
IV, Annex 161, p. 11.6 km south of Salinas . The spray data shows that the closest

spray event during the relevant period was some 8 km away, an

event which occurred in late January 2001, after the alleged

deaths took place, rather than late December 2000 or early

January 2001. Other events were even further away. The closest
spray events during December 2000 were likewise over 8 km

away, with the majority of the spray events in that period being

even further to the north.

3.188. The Cooperativa La Cóndor, is located roughly 2 km

almost due south of San Francisco II and some 4 km to the east
of Reina del Cisne. Although the closest spray event during the

relevant period was somewhat closer compared to Reina del

Cisne, being some 5.8 km away, it again took place in late

January 2001, after the alleged death took place . The closest

spray event in December 2000 was over 8.8 km away. Again the
majority of other events in that month took place even further to

the north.

3.189. Even on Ecuador’s own case as to spray drift, which

assumes perfectly flat, nude terrain, and fails to take account of
513
the barrier effect of any trees, it is inconceivable that any
significant quantity of the spray mixture could have drifted as

far as Reina del Cisne or La Cóndor, and this no matter how

many spray runs took place.

513
ER, Vol. II, Annex 1, p. 10.

2506 km south of Salinas . The spray data shows that the closest

spray event during the relevant period was some 8 km away, an

event which occurred in late January 2001, after the alleged

deaths took place, rather than late December 2000 or early

January 2001. Other events were even further away. The closest
spray events during December 2000 were likewise over 8 km

away, with the majority of the spray events in that period being

even further to the north.

3.188. The Cooperativa La Cóndor, is located roughly 2 km

almost due south of San Francisco II and some 4 km to the east
of Reina del Cisne. Although the closest spray event during the

relevant period was somewhat closer compared to Reina del

Cisne, being some 5.8 km away, it again took place in late

January 2001, after the alleged death took place . The closest

spray event in December 2000 was over 8.8 km away. Again the
majority of other events in that month took place even further to

the north.

3.189. Even on Ecuador’s own case as to spray drift, which

assumes perfectly flat, nude terrain, and fails to take account of
513
the barrier effect of any trees, it is inconceivable that any
significant quantity of the spray mixture could have drifted as

far as Reina del Cisne or La Cóndor, and this no matter how

many spray runs took place.

513
ER, Vol. II, Annex 1, p. 10.10 de Agosto claimed that fumigations had taken place some
516
three to four months previously (i.e. in March or April 2001).

3.193. However, the sprayings in Colombia within two
kilometres of the border in this area of the border region ended

in late January 2001 and did not recommence until November

2001. There was only one spray event in Colombian territory,

far to the east of where San Francisco and La Cóndor are
located, at a distance of over 16 km from the communities and

10 km to t he Ecuadorian river bank in the vicinity of those

communities. Given the location of the communities of La
Charapa and 10 de Agosto, even on Ecuador’s erroneous

modeling of drift, there is simply no way in which spraying

some 16 km to the north could have resulted in deposit of spray

mixture. The allegations in the press reports relied upon by
Ecuador are as unreliable as the evidence of the witnesses and

the NGO Reports.

3.194. In summary, the witness evidence, as well as the

supposedly corroborative evidence relied upon by Ecuador as to
the alleged harms in Sucumbíos in 2001, is simply inconsistent

with the evidence, notably the spray data . It disproves, rather

than proving, Ecuador’s case.

(iii) Satellite imagery

3.195. Finally, the analysis of satellite imagery provides

additional strong countervailing evidence that spraying within
Colombia in 2001 did not result in any deposition of significant

516
ER, Vol. IV, Annex 61.

25210 de Agosto claimed that fumigations had taken place some
516
three to four months previously (i.e. in March or April 2001).

3.193. However, the sprayings in Colombia within two
kilometres of the border in this area of the border region ended

in late January 2001 and did not recommence until November

2001. There was only one spray event in Colombian territory,

far to the east of where San Francisco and La Cóndor are
located, at a distance of over 16 km from the communities and

10 km to t he Ecuadorian river bank in the vicinity of those

communities. Given the location of the communities of La
Charapa and 10 de Agosto, even on Ecuador’s erroneous

modeling of drift, there is simply no way in which spraying

some 16 km to the north could have resulted in deposit of spray

mixture. The allegations in the press reports relied upon by
Ecuador are as unreliable as the evidence of the witnesses and

the NGO Reports.

3.194. In summary, the witness evidence, as well as the

supposedly corroborative evidence relied upon by Ecuador as to
the alleged harms in Sucumbíos in 2001, is simply inconsistent

with the evidence, notably the spray data . It disproves, rather

than proving, Ecuador’s case.

(iii) Satellite imagery

3.195. Finally, the analysis of satellite imagery provides

additional strong countervailing evidence that spraying within
Colombia in 2001 did not result in any deposition of significant

516
ER, Vol. IV, Annex 61. cultivation a517vities such as clearing, planting and
harvesting.”

(b) Sucumbíos November 2001 to October 2002 (including as
regards the Kichwa and Cofán communities)

3.197. Although Section I.B Chapter 2 of Ecuador’s Reply is

entitled “Sucumbíos 2002”, it covers the period from November

2001 to October 2002. Similar defects to those present in

relation to Sucumbíos i n 2001 are apparent in relation to the

evidence of the witnesses on which Ecuador relies in an attempt

to substantiate its allegations of drift and damage in Sucumbíos

in this period.

3.198. Once again, Ecuador provides figures for the total

number of spray events during the relevant period (although

misleadingly, given that multiple spray events may take place

within a single mission , it refers to them as “spray flights”).

Ecuador claims that between December 2001 and January 2002,

there were 10,487 spray events within 10 km of the border, and

that between August and October 2002, there were an additional
28,121 spray events. 518

3.199. As with the similar assertion made in relation to the total

number of spray events in Putumayo in the period between late

2000 and early 2001, the vast majority of these events took

place at some remove from the border . Further, as is clear from

517 CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Ph.D., Dec. 2011, para. 1.5.
518 ER, para. 3.49.

254 cultivation a517vities such as clearing, planting and
harvesting.”

(b) Sucumbíos November 2001 to October 2002 (including as
regards the Kichwa and Cofán communities)

3.197. Although Section I.B Chapter 2 of Ecuador’s Reply is

entitled “Sucumbíos 2002”, it covers the period from November

2001 to October 2002. Similar defects to those present in

relation to Sucumbíos i n 2001 are apparent in relation to the

evidence of the witnesses on which Ecuador relies in an attempt

to substantiate its allegations of drift and damage in Sucumbíos

in this period.

3.198. Once again, Ecuador provides figures for the total

number of spray events during the relevant period (although

misleadingly, given that multiple spray events may take place

within a single mission , it refers to them as “spray flights”).

Ecuador claims that between December 2001 and January 2002,

there were 10,487 spray events within 10 km of the border, and

that between August and October 2002, there were an additional
28,121 spray events. 518

3.199. As with the similar assertion made in relation to the total

number of spray events in Putumayo in the period between late

2000 and early 2001, the vast majority of these events took

place at some remove from the border . Further, as is clear from

517 CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Ph.D., Dec. 2011, para. 1.5.
518 ER, para. 3.49.clearly untrue. Even from Figure 3.3 in Ecuador’s Reply, it is
apparent that the closest spray event during the period

November 2001 to October 2002 was at some considerable

distance from Puerto Escondido. Analysis of the spray data

shows that the clos est spray events to Puerto Escondido, all of

which occurred on 10 October 2002, were all more than 2.5 km

from the Ecuadorian bank of the boundary river at Puerto

Escondido. These three closest spray events took place at
heights of 43m, 48m and 42m respectively.

3.203. Once again, as shown by the satellite imagery anal ysed

by Dr Evans, there is substantial vegetation in this area of the

border, including along the banks on both sides of the river , as

well as in the unsprayed area bounded by the loop in the river,
521
separating Puerto Escondido from the closest spray lines .

Given the vegetation and the height at which the planes were
spraying, a t such a distance, it is incredible that Witness 20

could have seen the planes such as to provide the detailed

description contained in his witness statement.

3.204. Nor is it credible that he could have been affected by

heavy drift in the manner alleged . At Colombia’s request, Dr

Hewitt modeled the deposition rates at the closest point on the

river bank in Ecuadorian territory from each of the three closest

spray events. The deposition values produced by the model ing
were 1.2 g/ha, 1.1 g/ha and 0.11 g/ha, respectively. 522 Once

521 CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Dec. 2011, para. 4.9.
522 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 10, 13, and 50.

256clearly untrue. Even from Figure 3.3 in Ecuador’s Reply, it is
apparent that the closest spray event during the period

November 2001 to October 2002 was at some considerable

distance from Puerto Escondido. Analysis of the spray data

shows that the clos est spray events to Puerto Escondido, all of

which occurred on 10 October 2002, were all more than 2.5 km

from the Ecuadorian bank of the boundary river at Puerto

Escondido. These three closest spray events took place at
heights of 43m, 48m and 42m respectively.

3.203. Once again, as shown by the satellite imagery anal ysed

by Dr Evans, there is substantial vegetation in this area of the

border, including along the banks on both sides of the river , as

well as in the unsprayed area bounded by the loop in the river,
521
separating Puerto Escondido from the closest spray lines .

Given the vegetation and the height at which the planes were
spraying, a t such a distance, it is incredible that Witness 20

could have seen the planes such as to provide the detailed

description contained in his witness statement.

3.204. Nor is it credible that he could have been affected by

heavy drift in the manner alleged . At Colombia’s request, Dr

Hewitt modeled the deposition rates at the closest point on the

river bank in Ecuadorian territory from each of the three closest

spray events. The deposition values produced by the model ing
were 1.2 g/ha, 1.1 g/ha and 0.11 g/ha, respectively. 522 Once

521 CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Dec. 2011, para. 4.9.
522 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 10, 13, and 50.the border with Nariño , some 120 km to the west . It is not in

Sucumbíos, and is not depicted on Ecuador’s Figure 3.3.

3.208. In any event, the allegations of Witnesses 40 and 41, the

two witnesses who had their undoubtedly pre -prepared
524
statements notarised in Otavalo, are not credible. Both state

that they resided in Mata je Alto at the material time . However,
there was only extremely limited spraying in this region during

2002, consisting of a handful of spray events , and the closest

spray events were close to 1 km from the border, and well over

6 km from the location of Mataje Alto itself. The allegations of

Witnesses 40 and 41, including their allegations as to overflight,

are simply not credible.

3.209. In any case, the modeling of spray drift by Dr Hewitt of

the closest spray lines in 2002 (at 970m and 1,430m from the

Ecuador bank of the river, respectively), shows that , at most,
525
only de minimis quantities (0.08 g/ha and 0.14 g/ha ) of spray

mixture would have made it as far as the Ecuadorian bank of the

river; even less could have been carried the additional distance
in excess of 5 km to Mataje Alto itself.

3.210. Similarly, the evidence of Witnesses 2, 3 and 4 as to

alleged spraying in Salinas is inherently unreliable. Witness 4

merely refers in general terms to spraying in “the next year”

after the allegation of spraying in 2001. The numerous defects

and inconsistencies as regards the allegations of Witness 4 as to

524 See above, para. 3.44.
525 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 55 and 46.

258the border with Nariño , some 120 km to the west . It is not in

Sucumbíos, and is not depicted on Ecuador’s Figure 3.3.

3.208. In any event, the allegations of Witnesses 40 and 41, the

two witnesses who had their undoubtedly pre -prepared
524
statements notarised in Otavalo, are not credible. Both state

that they resided in Mata je Alto at the material time . However,
there was only extremely limited spraying in this region during

2002, consisting of a handful of spray events , and the closest

spray events were close to 1 km from the border, and well over

6 km from the location of Mataje Alto itself. The allegations of

Witnesses 40 and 41, including their allegations as to overflight,

are simply not credible.

3.209. In any case, the modeling of spray drift by Dr Hewitt of

the closest spray lines in 2002 (at 970m and 1,430m from the

Ecuador bank of the river, respectively), shows that , at most,
525
only de minimis quantities (0.08 g/ha and 0.14 g/ha ) of spray

mixture would have made it as far as the Ecuadorian bank of the

river; even less could have been carried the additional distance
in excess of 5 km to Mataje Alto itself.

3.210. Similarly, the evidence of Witnesses 2, 3 and 4 as to

alleged spraying in Salinas is inherently unreliable. Witness 4

merely refers in general terms to spraying in “the next year”

after the allegation of spraying in 2001. The numerous defects

and inconsistencies as regards the allegations of Witness 4 as to

524 See above, para. 3.44.
525 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 55 and 46. 530
(0.11 g/ha and .015 g/ha, respectively) at the river bank,

assuming worst-case conditions and that the wind was blowing

from Colombia towards Ecuador, although in fact the opposite is
531
the norm . Even in that worst -case scenario, for the
community located in excess of two kilometres further away,

there would have been no or only minimal deposit . As such,

again, the allegations of Witness es 2, 3 and 4, including their

allegations of overflight and having suffered the effects of spray

drift, stand discredited.

3.214. This is even more true of Witness 9 , a resident of

Corazón Orense, and one of the witnesses who refers merely to

spraying “seven or eight years ago”. Ecuador treats this as

conclusive that the all eged spraying to ok place in 2002,

although it previously also relied upon the statement of Witness
532
9 as supporting the occurrence of spraying in 2001.

3.215. However, as noted above , even if the allegat ions of

Witness 9 relate to 2002 , rather than 2001, the vi llage of

Corazón Orense, a s is apparent from Figure 3.3 in Ecuador’s
Reply, is located a substantial distance from the river border,

almost directly due south- east of Puerto Escondido. As is also

apparent from Figure 3.3, the closest spray event during 2002

took place in Colombian territory at least 4 km from the village.

Colombia’s more detailed analysis shows that the closest spray

530 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, Table of Model Results, rows 49, and 68.
531 CR, Vol. II, Annex 19: Institute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate C haracterization of the Nariño
and Putumayo Border Zone with Ecuador, Dec. 2011, pp. 706-730.
532 ER, para. 3.41.

260 530
(0.11 g/ha and .015 g/ha, respectively) at the river bank,

assuming worst-case conditions and that the wind was blowing

from Colombia towards Ecuador, although in fact the opposite is
531
the norm . Even in that worst -case scenario, for the
community located in excess of two kilometres further away,

there would have been no or only minimal deposit . As such,

again, the allegations of Witness es 2, 3 and 4, including their

allegations of overflight and having suffered the effects of spray

drift, stand discredited.

3.214. This is even more true of Witness 9 , a resident of

Corazón Orense, and one of the witnesses who refers merely to

spraying “seven or eight years ago”. Ecuador treats this as

conclusive that the all eged spraying to ok place in 2002,

although it previously also relied upon the statement of Witness
532
9 as supporting the occurrence of spraying in 2001.

3.215. However, as noted above , even if the allegat ions of

Witness 9 relate to 2002 , rather than 2001, the vi llage of

Corazón Orense, a s is apparent from Figure 3.3 in Ecuador’s
Reply, is located a substantial distance from the river border,

almost directly due south- east of Puerto Escondido. As is also

apparent from Figure 3.3, the closest spray event during 2002

took place in Colombian territory at least 4 km from the village.

Colombia’s more detailed analysis shows that the closest spray

530 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, Table of Model Results, rows 49, and 68.
531 CR, Vol. II, Annex 19: Institute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate C haracterization of the Nariño
and Putumayo Border Zone with Ecuador, Dec. 2011, pp. 706-730.
532 ER, para. 3.41.some distance to the south of San Francisco II , and

approximately4.5 km from the border.

3.220. Witness 17 states that she is resident in La Carchi .
Although the maps in Ecuador’s Reply do not give a location for

La Carchi, a search of Ecuadorian maps has revealed a village

called Carchi, in the general area of San Francisco II , although

that community is located some further distance to the south

even than La C óndor, and therefore a very substantial distance

from the border . On that basis, Witness 17’s allegation of

overflight simply cannot be believed.

3.221. The analysis carried out by Colombia of the spray data

shows that the nearest spray events in 2002 were over 3 km
from San Francisco II itself, and nearly 5 km from La

Cóndor. 537

3.222. Colombia has already dealt with the allegations of

Witness 13 as to overspray. 538 Given the distance of La Cóndor

from the border it is simply not plaus ible that planes engaged in

spraying operations within Colombia could have over sprayed

the community; further, the spray data proves conclusively that

they did not do so.

3.223. As to Witness 12, her Questionnaire in the Dyncorp

proceedings states that her farm is located approximately 2 km

537 CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 78-79, Fig. 9. See also CR, Vol. I, Appen, pp.
92-93, 98-99 and 110-111, Fig. 9.
538 See above, paras. 3.94-3.96.

262some distance to the south of San Francisco II , and

approximately4.5 km from the border.

3.220. Witness 17 states that she is resident in La Carchi .
Although the maps in Ecuador’s Reply do not give a location for

La Carchi, a search of Ecuadorian maps has revealed a village

called Carchi, in the general area of San Francisco II , although

that community is located some further distance to the south

even than La C óndor, and therefore a very substantial distance

from the border . On that basis, Witness 17’s allegation of

overflight simply cannot be believed.

3.221. The analysis carried out by Colombia of the spray data

shows that the nearest spray events in 2002 were over 3 km
from San Francisco II itself, and nearly 5 km from La

Cóndor. 537

3.222. Colombia has already dealt with the allegations of

Witness 13 as to overspray. 538 Given the distance of La Cóndor

from the border it is simply not plaus ible that planes engaged in

spraying operations within Colombia could have over sprayed

the community; further, the spray data proves conclusively that

they did not do so.

3.223. As to Witness 12, her Questionnaire in the Dyncorp

proceedings states that her farm is located approximately 2 km

537 CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 78-79, Fig. 9. See also CR, Vol. I, Appen, pp.
92-93, 98-99 and 110-111, Fig. 9.
538 See above, paras. 3.94-3.96.sufficiently close to any location in Colombian territoryat which

spraying in fact took place during 2002 to even have observed

the flights themselves, let alone to have felt any effects from

drift. Clearly, to the extent that they allege overspray, at
locations well away from the river, their evidence is

undoubtedly false . Their evidence as a whole should be

disregarded as not credible.

(ii) The supposedly corroborating evidence

3.226. Ecuador shies away from dealing in any detail with the

majority of the witnesses who allege that they observed or
suffered the effects of spraying in 2002. Instead it relies heavily

on other sources which it says substantially corroborate their

(untrue) allegations. As demonstrated above, there is nothing to

corroborate. The allegations of the witnesses do not stand up to
scrutiny when compared with the spray data, and insofar as it is

alleged that theysuffered damage, in any case run counter to the

scientific evidence showing the spray mixture causes no such
542
effects.

3.227. Moreover, analysis of the claims in the supposedly
corroborative documents shows that they are equally flawed .

Each of the documents relied upon by Ecuador, including press

reports and reports compiled by NGOs , is based solely on the

testimony of witnesses resident in Ecuadorian territory.
Although Ecuador attempts to portray this material as objective

542
See above, Chapter 2, Section B. The Spray Mixture.

264sufficiently close to any location in Colombian territoryat which

spraying in fact took place during 2002 to even have observed

the flights themselves, let alone to have felt any effects from

drift. Clearly, to the extent that they allege overspray, at
locations well away from the river, their evidence is

undoubtedly false . Their evidence as a whole should be

disregarded as not credible.

(ii) The supposedly corroborating evidence

3.226. Ecuador shies away from dealing in any detail with the

majority of the witnesses who allege that they observed or
suffered the effects of spraying in 2002. Instead it relies heavily

on other sources which it says substantially corroborate their

(untrue) allegations. As demonstrated above, there is nothing to

corroborate. The allegations of the witnesses do not stand up to
scrutiny when compared with the spray data, and insofar as it is

alleged that theysuffered damage, in any case run counter to the

scientific evidence showing the spray mixture causes no such
542
effects.

3.227. Moreover, analysis of the claims in the supposedly
corroborative documents shows that they are equally flawed .

Each of the documents relied upon by Ecuador, including press

reports and reports compiled by NGOs , is based solely on the

testimony of witnesses resident in Ecuadorian territory.
Although Ecuador attempts to portray this material as objective

542
See above, Chapter 2, Section B. The Spray Mixture.Nuevo – in fact the closest spray line prior to 7 September was 2

km away.

3.230. Similar considerations apply to the further report

published in El Universo on 19 September 2002, relating to
544
alleged harm caused in villages within Ecuador. As Ecuador

itself notes, the report refe rs principally to the testimony of Mr
Ángel Encarnación of Chone II, who claimed that he had

observed planes spraying within Colombia. 545 What Ecuador

does not record is that Mr Encarnación alleged that the spraying

took place “a few metres away from Ecuadorian soil”, and that

the report alleges that the populations most affected by

fumigations were those of Chone Uno, Chone Dos, la Playera,
Chanangué, Puerto Nuevo and Zozozranga.

3.231. Analysis of the spray data reveals that the allegations

contained in the report cannot be true. Although there was some

spraying to the north of the region in question during the course

of September 2002, the closest spray event to Puerto Nuevo,

which occurred on 6 September 2002, was 2.1 km away, whilst
the closest event to Playera Oriental was at a distance of

2.14 km.

3.232. Further, the allegation of Mr Encarnación, the leader of

Chone II, that he observed the spray planes “a few metres from

Ecuadorian soil” is without substance. As shown on Figure 3.3

in Ecuador’s Reply, Chone II is i n fact located some

544
545 ER, Vol. IV, Annex 69.
ER, para. 3.56, referring to ER, Vol. IV, Annex 69.

266Nuevo – in fact the closest spray line prior to 7 September was 2

km away.

3.230. Similar considerations apply to the further report

published in El Universo on 19 September 2002, relating to
544
alleged harm caused in villages within Ecuador. As Ecuador

itself notes, the report refe rs principally to the testimony of Mr
Ángel Encarnación of Chone II, who claimed that he had

observed planes spraying within Colombia. 545 What Ecuador

does not record is that Mr Encarnación alleged that the spraying

took place “a few metres away from Ecuadorian soil”, and that

the report alleges that the populations most affected by

fumigations were those of Chone Uno, Chone Dos, la Playera,
Chanangué, Puerto Nuevo and Zozozranga.

3.231. Analysis of the spray data reveals that the allegations

contained in the report cannot be true. Although there was some

spraying to the north of the region in question during the course

of September 2002, the closest spray event to Puerto Nuevo,

which occurred on 6 September 2002, was 2.1 km away, whilst
the closest event to Playera Oriental was at a distance of

2.14 km.

3.232. Further, the allegation of Mr Encarnación, the leader of

Chone II, that he observed the spray planes “a few metres from

Ecuadorian soil” is without substance. As shown on Figure 3.3

in Ecuador’s Reply, Chone II is i n fact located some

544
545 ER, Vol. IV, Annex 69.
ER, para. 3.56, referring to ER, Vol. IV, Annex 69.3.235. Further, although t he report does not make clear in

which village Mr Bravo resides , the spray data shows that,

wherever he resided, theallegations he made are not true.

3.236. As is clear from Figure 3.3 in Ecuador’s Reply, the

villages to which reference is made are relatively distant from

each other. Santa Marianita is located over 5 km to the
southwest of Puerto Mestanza, with Monterrey some 2 km to the

east. Puerto Nuevo is even further away, being located more

than 25 km to the east of Santa Marianita and approximately

23 km to the east of Puerto Mestanza.

3.237. Further, both Monterrey and Santa Marianita are located

some considerable distance into Ecuadorian territory, away from
the border. Santa Marianita is located approximately 2.5 km

from the river, whilst Monterrey is approximately 2 km distant.

If Mr Bravo had been in either of these settlements, his

allegation would be incredible.

3.238. But even if he had been on the banks of the river, his

allegation would lack foundation. A lthough there was spraying
in the week or so prior to 26 September 2002 within the region

of Colombia to the north of Monterrey and Santa Marianita, it

was clustered to the no rthwest of Santa Marianita. The closest

spray line was in excess of 4 km from Santa Marianita and, even

further (approximately 7 km) from Monterrey . Further, the

spraying in this period was approximately 9 km due east of
Puerto Mestanza. Given the orientat ion of the spray lines, there

is simply no plausible reason why the spray planes performing

2683.235. Further, although t he report does not make clear in

which village Mr Bravo resides , the spray data shows that,

wherever he resided, theallegations he made are not true.

3.236. As is clear from Figure 3.3 in Ecuador’s Reply, the

villages to which reference is made are relatively distant from

each other. Santa Marianita is located over 5 km to the
southwest of Puerto Mestanza, with Monterrey some 2 km to the

east. Puerto Nuevo is even further away, being located more

than 25 km to the east of Santa Marianita and approximately

23 km to the east of Puerto Mestanza.

3.237. Further, both Monterrey and Santa Marianita are located

some considerable distance into Ecuadorian territory, away from
the border. Santa Marianita is located approximately 2.5 km

from the river, whilst Monterrey is approximately 2 km distant.

If Mr Bravo had been in either of these settlements, his

allegation would be incredible.

3.238. But even if he had been on the banks of the river, his

allegation would lack foundation. A lthough there was spraying
in the week or so prior to 26 September 2002 within the region

of Colombia to the north of Monterrey and Santa Marianita, it

was clustered to the no rthwest of Santa Marianita. The closest

spray line was in excess of 4 km from Santa Marianita and, even

further (approximately 7 km) from Monterrey . Further, the

spraying in this period was approximately 9 km due east of
Puerto Mestanza. Given the orientat ion of the spray lines, there

is simply no plausible reason why the spray planes performing3.242. Aside from the obvious falsehood of attributing deaths to

the spraying, which the scientific evidence shows is impossible,

following the conclusion of spraying in January 2002, spraying

within Colombia in the region of Santa Marianita did not

recommence until August 2002; there was no spraying in July
2002. In any case, t he initial spraying within the region of

Colombia to the north of Santa Marianita at the start of August

2002 was far removed from the border area, and was in excess

of 10 km from Santa Marianita itself. It could not possibly have

been the cause of any effects in Santa Marianita let alone the
deaths alleged.

3.243. The July 2003 “Verification Mission” also records the

allegations of inhabitants of Monterrey of deaths in May and

June 2003 (one of a 90- year old man), allegedly caused by
551
spraying. The attribution of the deaths to the spraying is
simply fabricated, as shown by the scientific evidence explained

in the Counter -Memorial and Chapter 2, above . Furthermore,

there was no spraying during the year 2003 prior to May in the

relevant region in Colombia, and the spraying during May and

June 2003 was extremely limited, and all of it was in any case in
excess of 5 km from the border, and at least 9 km from

Monterrey.

3.244. Similarly, the repor t by a member of the Ecuadorian

Congress, filed by Ecuador as Annex 167 to its Memorial ,

records the allegations of inhabitants of Santa Marianita of

551
EM, Vol. IV, Annex 166, p. 12 (pages of Annex 166 in EM, Vol. IV
appear mislabelled as Annex 165 on top right).

2703.242. Aside from the obvious falsehood of attributing deaths to

the spraying, which the scientific evidence shows is impossible,

following the conclusion of spraying in January 2002, spraying

within Colombia in the region of Santa Marianita did not

recommence until August 2002; there was no spraying in July
2002. In any case, t he initial spraying within the region of

Colombia to the north of Santa Marianita at the start of August

2002 was far removed from the border area, and was in excess

of 10 km from Santa Marianita itself. It could not possibly have

been the cause of any effects in Santa Marianita let alone the
deaths alleged.

3.243. The July 2003 “Verification Mission” also records the

allegations of inhabitants of Monterrey of deaths in May and

June 2003 (one of a 90- year old man), allegedly caused by
551
spraying. The attribution of the deaths to the spraying is
simply fabricated, as shown by the scientific evidence explained

in the Counter -Memorial and Chapter 2, above . Furthermore,

there was no spraying during the year 2003 prior to May in the

relevant region in Colombia, and the spraying during May and

June 2003 was extremely limited, and all of it was in any case in
excess of 5 km from the border, and at least 9 km from

Monterrey.

3.244. Similarly, the repor t by a member of the Ecuadorian

Congress, filed by Ecuador as Annex 167 to its Memorial ,

records the allegations of inhabitants of Santa Marianita of

551
EM, Vol. IV, Annex 166, p. 12 (pages of Annex 166 in EM, Vol. IV
appear mislabelled as Annex 165 on top right).3.246. In any case, the questionnaires, although described as

“Clinical toxicological sheets” only ask about the occurrence of

certain symptoms, do not include any material from the clinical

records of th e respondents, and the symptoms listed can, as

discussed further below, be caused by a variety of causes and

clinical conditions.

3.247. Further, there is, at the very least, a selection bias insofar

as they only show information of those purportedly affected

without comparing it to health information from other residents

in the areas that do not report similar symptoms . There is also a
question of memory bias, since the questionnaires only ask

about the listed symptoms, whilst also asking about details of

alleged spraying.

3.248. The lack of complete medical records allowing for

thorough examination of the medical background of allegedly

affected individuals, as well as evidence of an integral –as

opposed to a focused – medical diagnostic examination, curtails

the possi bility of associating an outcome with the alleged

exposure situation, given that the symptoms may be caused by

other health conditions unrelated to the alleged spraying. This is

confirmed by studies conducted in Ecuador, in which those

same symptoms are generally attributed to infectious diseases
554
and parasites, highly prevalent in the border area and to

554
CR, Vol. VI, Annex 64: Organismo Andino de Salud, Hipolito
Hunanue Agreement, Analysis of Health Situation in the Border,
Pacific/Andean Corridors Nariño/Tulcán - San Lorenzo (Colombia -
Ecuador), 2009, pp. 46-47.

2723.246. In any case, the questionnaires, although described as

“Clinical toxicological sheets” only ask about the occurrence of

certain symptoms, do not include any material from the clinical

records of th e respondents, and the symptoms listed can, as

discussed further below, be caused by a variety of causes and

clinical conditions.

3.247. Further, there is, at the very least, a selection bias insofar

as they only show information of those purportedly affected

without comparing it to health information from other residents

in the areas that do not report similar symptoms . There is also a
question of memory bias, since the questionnaires only ask

about the listed symptoms, whilst also asking about details of

alleged spraying.

3.248. The lack of complete medical records allowing for

thorough examination of the medical background of allegedly

affected individuals, as well as evidence of an integral –as

opposed to a focused – medical diagnostic examination, curtails

the possi bility of associating an outcome with the alleged

exposure situation, given that the symptoms may be caused by

other health conditions unrelated to the alleged spraying. This is

confirmed by studies conducted in Ecuador, in which those

same symptoms are generally attributed to infectious diseases
554
and parasites, highly prevalent in the border area and to

554
CR, Vol. VI, Annex 64: Organismo Andino de Salud, Hipolito
Hunanue Agreement, Analysis of Health Situation in the Border,
Pacific/Andean Corridors Nariño/Tulcán - San Lorenzo (Colombia -
Ecuador), 2009, pp. 46-47.3.252. In fact, although there were a handful of very short spray

events which took place on 6 September 2002, almost due north

of Chone II, the closest was over 4 km away from the village .

As such, the allegations of all of the residents o f Chone II are

implausible, to say the least, including the claims that spraying

at 3 km was witnessed.

3.253. Ecuador only refers briefly and selectively to the other

“inquest” questionnaires contained in Annex 31 to its Reply, in

the context of its discussion of the health effects allegedly

suffered by residents, supposedly as a result of spraying. 558

3.254. However, those forms contain the following allegations

of spraying, the vast majority of which (with the exception of

those ma de by residents of General Farfán, taken on

13 November 2002) were likewise collected on 12 September

2002:

• by residents of General Farfán: allegations of

spraying in “September” 2002 at a distance of

1 km; 559 and “towards the end of September”

2002, at a distance of 600m; 560

• by residents of Puer to Nuevo, allegation s of

spraying at distance s of 700m 561 and 400m 562 on

558
ER, paras. 3.61-3.63.
559 Inquest form of Beatriz Esperanza Urbina, 13 November 2002, ER,
Vol. III, Annex 31.
560 Inquest form of Italo Ramón Bene Cosa, 13 November 2002, ER,
Vol. III, Annex 31.
561
Inquest form of Zacar ías García Chavez, 12 September 2002, ER,
Vol. III, Annex 31.

2743.252. In fact, although there were a handful of very short spray

events which took place on 6 September 2002, almost due north

of Chone II, the closest was over 4 km away from the village .

As such, the allegations of all of the residents o f Chone II are

implausible, to say the least, including the claims that spraying

at 3 km was witnessed.

3.253. Ecuador only refers briefly and selectively to the other

“inquest” questionnaires contained in Annex 31 to its Reply, in

the context of its discussion of the health effects allegedly

suffered by residents, supposedly as a result of spraying. 558

3.254. However, those forms contain the following allegations

of spraying, the vast majority of which (with the exception of

those ma de by residents of General Farfán, taken on

13 November 2002) were likewise collected on 12 September

2002:

• by residents of General Farfán: allegations of

spraying in “September” 2002 at a distance of

1 km; 559 and “towards the end of September”

2002, at a distance of 600m; 560

• by residents of Puer to Nuevo, allegation s of

spraying at distance s of 700m 561 and 400m 562 on

558
ER, paras. 3.61-3.63.
559 Inquest form of Beatriz Esperanza Urbina, 13 November 2002, ER,
Vol. III, Annex 31.
560 Inquest form of Italo Ramón Bene Cosa, 13 November 2002, ER,
Vol. III, Annex 31.
561
Inquest form of Zacar ías García Chavez, 12 September 2002, ER,
Vol. III, Annex 31.3.256. As regards the allegations made by residents of General

Farfán, the closest such spraying at any time during September

2002 occurred almost 2 km away from the village.

3.257. As regards the allegations of the residents of Puerto

Nuevo,

• there was at no time any overspray of Puerto Nuevo

itself;

• although there was some spraying in the period 10-

20 August 2002, all of the spraying was located more

than 7 km north of Puerto Nuevo; and

• spraying during the period between 1 and

10 September 2002 was located in areas of

Colombian territory more than 2 km north of Puerto

Nuevo.

3.258. As regards the allegations of the residents of Playera

Oriental, spraying took place within Colombian territory at a

distance in excess of 2 km. As with the allegations of the

residents of Chone II, their allegations are clearly false.

3.259. Most strikingly, as regards the allegations of the resident
of Palma Seca, spray ing in the period 1- 10 September 2002 to

the northwest was in excess of 8 km, away, and the closest spray

line of those to the north was over 6 km away.

3.260. In this r egard, Ecuador’s suggestion that both Palma

Seca and Playera Oriental are located “close to the 2002
sprayings as disclosed in the recently -obtained spray flight

2763.256. As regards the allegations made by residents of General

Farfán, the closest such spraying at any time during September

2002 occurred almost 2 km away from the village.

3.257. As regards the allegations of the residents of Puerto

Nuevo,

• there was at no time any overspray of Puerto Nuevo

itself;

• although there was some spraying in the period 10-

20 August 2002, all of the spraying was located more

than 7 km north of Puerto Nuevo; and

• spraying during the period between 1 and

10 September 2002 was located in areas of

Colombian territory more than 2 km north of Puerto

Nuevo.

3.258. As regards the allegations of the residents of Playera

Oriental, spraying took place within Colombian territory at a

distance in excess of 2 km. As with the allegations of the

residents of Chone II, their allegations are clearly false.

3.259. Most strikingly, as regards the allegations of the resident
of Palma Seca, spray ing in the period 1- 10 September 2002 to

the northwest was in excess of 8 km, away, and the closest spray

line of those to the north was over 6 km away.

3.260. In this r egard, Ecuador’s suggestion that both Palma

Seca and Playera Oriental are located “close to the 2002
sprayings as disclosed in the recently -obtained spray flight3.262. The individuals resident in Playera Oriental and Chone II

whose allegations (as made in the inquest forms) are reproduced

in the report , all reside some considerable distance away from

the river bank. However, as noted above, the closest spray event

to the E cuadorian river bank was at 610m. Yet the distances
from that point to Playera Oriental and Chone II are 0.5 km and

1 km, respectively (i.e. 1.1 km and 1.6 km from the spray event,

respectively). Given the evidence of Dr Hewitt that the levels of

deposit downwind “rapidly approach zero within a few hundred
575
meters,” even if the wind had been blowing from Colombia
towards Ecuador at the relevant time, no quantity of spray

mixture sufficient to cause damage could have reached the

communities.

3.263. In similar fashion, insofar as the report relies on the

unverified allega tions of the other individuals in relation to
whom medical “inquest” forms were compiled, and whose

claims as to the date and/or distance from spraying are, as set

out above, demonstrably false, all of the conclusions that the

report seeks to draw on the basis of those claims are

undermined.

3.264. As a consequence, Colombia stands by its position that

the report is wholly unsubstantiated, both specifically as regards

the allegation of widespread damage being suffered by the

residents of Chone II and Playera Oriental as a result of spraying

within Colombia on 6 September 2002, as well as more

575
CR, Vol. II, Annex 1: Hewitt Report Response to Giles (2011)),
para. 32, p. 14.

2783.262. The individuals resident in Playera Oriental and Chone II

whose allegations (as made in the inquest forms) are reproduced

in the report , all reside some considerable distance away from

the river bank. However, as noted above, the closest spray event

to the E cuadorian river bank was at 610m. Yet the distances
from that point to Playera Oriental and Chone II are 0.5 km and

1 km, respectively (i.e. 1.1 km and 1.6 km from the spray event,

respectively). Given the evidence of Dr Hewitt that the levels of

deposit downwind “rapidly approach zero within a few hundred
575
meters,” even if the wind had been blowing from Colombia
towards Ecuador at the relevant time, no quantity of spray

mixture sufficient to cause damage could have reached the

communities.

3.263. In similar fashion, insofar as the report relies on the

unverified allega tions of the other individuals in relation to
whom medical “inquest” forms were compiled, and whose

claims as to the date and/or distance from spraying are, as set

out above, demonstrably false, all of the conclusions that the

report seeks to draw on the basis of those claims are

undermined.

3.264. As a consequence, Colombia stands by its position that

the report is wholly unsubstantiated, both specifically as regards

the allegation of widespread damage being suffered by the

residents of Chone II and Playera Oriental as a result of spraying

within Colombia on 6 September 2002, as well as more

575
CR, Vol. II, Annex 1: Hewitt Report Response to Giles (2011)),
para. 32, p. 14.been based on the testimony of the inhabitants of the border
regions.

3.267. There is no indication that the claims of the individuals

who gave their accounts to the Special Rapporteur were

subjected to critical examination, nor that any efforts were made

to verify them. His conclusions can only be as good as the

evidence on which they are based , and a s such, the Special

Rapporteur’s “conclusions” are simply expressions of opinion,
and cannot be treated as in any way conclusive, and cer tainly

not as in any way comparable to a judicial finding of fact.

3.268. Further, although the Special Rapporteur records that he

reviewed “the scientific evidence”, it is difficult to understand

what that evidence might have been; certainly, as discussed

further below, none of the mainstream, widely -accepted

literature on the effects of glyphosate suggests that it is capable

of causing the extreme effects alleged by the witnesses (and
none of it is cited by the Special Rapporteur).

3.269. In any event, in his prelimina ry note of 4 March 2007,

the Special Rapporteur specifically made clear that he had not

purported to carry out a scientific assessment: “[T]he mission

did not take samples or conduct laboratory tests, because it was

not a scientific mission.” In the event the Special Rapporteur
578
never did submit a concluded report on the issue.

578 As recalled in CCM, Vol. I, para. 7.118. According to the website of
the Office of the High Commissioner for Human Rights, there has been no
further report on this subject by the Special Rapporteurs. Paul Hunt was

280been based on the testimony of the inhabitants of the border
regions.

3.267. There is no indication that the claims of the individuals

who gave their accounts to the Special Rapporteur were

subjected to critical examination, nor that any efforts were made

to verify them. His conclusions can only be as good as the

evidence on which they are based , and a s such, the Special

Rapporteur’s “conclusions” are simply expressions of opinion,
and cannot be treated as in any way conclusive, and cer tainly

not as in any way comparable to a judicial finding of fact.

3.268. Further, although the Special Rapporteur records that he

reviewed “the scientific evidence”, it is difficult to understand

what that evidence might have been; certainly, as discussed

further below, none of the mainstream, widely -accepted

literature on the effects of glyphosate suggests that it is capable

of causing the extreme effects alleged by the witnesses (and
none of it is cited by the Special Rapporteur).

3.269. In any event, in his prelimina ry note of 4 March 2007,

the Special Rapporteur specifically made clear that he had not

purported to carry out a scientific assessment: “[T]he mission

did not take samples or conduct laboratory tests, because it was

not a scientific mission.” In the event the Special Rapporteur
578
never did submit a concluded report on the issue.

578 As recalled in CCM, Vol. I, para. 7.118. According to the website of
the Office of the High Commissioner for Human Rights, there has been no
further report on this subject by the Special Rapporteurs. Paul Hunt wasmake reference was neither “intense”, nor was it “close”, as

Ecuador suggests.

3.273. Colombia understands Yana Amarum to be located on
the banks of the river to the northeast of Chone II. As note d

above, in 2002, spraying in the relevant region only started in

August 2002. The suggestion of spraying in July 2002 is untrue.

3.274. Further, during August 2002, what spraying there was

took place a considerable distance to the north of the settlement.

Even the spraying during the latter half of September 2002 was

at no point closer than 5 km to the settlement. As can be seen

from Figure 3.4 in Ecuador’s Reply, the spraying consisted of

small concentrated areas in relation to specific locations within
Colombian territory and was clearly not “intense”. The closest

spray line to Yana Amarum in fact took place on 3 October

2002, and was no closer than 2.7 km from the Ecuadorian side

of the riverbank. 582 Dr Hewitt’s modeling of that nearest spray

line indicated that that event resulted in an estimated deposition
583
value of 0.111 g/ha.

3.275. Finally, Ecuador does not mention that the same report,

in recording the visit on 24 July 2003 to Yana Amarum, refers to

claims of the inhabitants that they had been sprayed the previous

582 CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, p p. 93-94, Fig. 19; see also CR, Vol. I, Appendi,
pp. 174-175, Fig. 19.
583 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, row 48.

282make reference was neither “intense”, nor was it “close”, as

Ecuador suggests.

3.273. Colombia understands Yana Amarum to be located on
the banks of the river to the northeast of Chone II. As note d

above, in 2002, spraying in the relevant region only started in

August 2002. The suggestion of spraying in July 2002 is untrue.

3.274. Further, during August 2002, what spraying there was

took place a considerable distance to the north of the settlement.

Even the spraying during the latter half of September 2002 was

at no point closer than 5 km to the settlement. As can be seen

from Figure 3.4 in Ecuador’s Reply, the spraying consisted of

small concentrated areas in relation to specific locations within
Colombian territory and was clearly not “intense”. The closest

spray line to Yana Amarum in fact took place on 3 October

2002, and was no closer than 2.7 km from the Ecuadorian side

of the riverbank. 582 Dr Hewitt’s modeling of that nearest spray

line indicated that that event resulted in an estimated deposition
583
value of 0.111 g/ha.

3.275. Finally, Ecuador does not mention that the same report,

in recording the visit on 24 July 2003 to Yana Amarum, refers to

claims of the inhabitants that they had been sprayed the previous

582 CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, p p. 93-94, Fig. 19; see also CR, Vol. I, Appendi,
pp. 174-175, Fig. 19.
583 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, row 48.the San Miguel River” and that “they would cross to the

Ecuadorian side and turn around”, is not credible. Similarly, his
claim that he “saw the smoke coming out of the planes and

reaching our community”, is wholly unbelievable, given that the

nearest spray events took place more than 2.8 km distant. 586

(c) Esmeraldas in 2000

3.279. In relation to the spraying wi thin Colombia in the area
adjacent to the Ecuadorian province of Esmeraldas, Ecuador

suggests that “the evidence from Mataje […] demonst rates that

the aerial sprayings began to exert their effects on the village

also in late 2000.” 587 It suggests that the evidence of witnesses

30, 32, 33, 34, 36, 37, 38 and 39 “belie Colombia’s criticism of

the ‘vague’ dates described in the statements of t he Mataje
588
residents.”

3.280. However, none of the witnesses from Mataje give any

indication of the period in which the sprayings are alleged to
have occurred; all of them merely allege – 8 or 9 years after the

event – that they experienced spraying in 2000, without further

specification. Ecuador’s suggestion that the effects began to be

felt in “late 2000” appears to be an extrapolation back from the

spray data.

586 CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, p p. 93-94, Fig. 19; se e also CR, Vol. I, Appendix, pp.
174-175, Fig. 19.
587 ER, para. 3.84.
588 ER, para. 3.86.

284the San Miguel River” and that “they would cross to the

Ecuadorian side and turn around”, is not credible. Similarly, his
claim that he “saw the smoke coming out of the planes and

reaching our community”, is wholly unbelievable, given that the

nearest spray events took place more than 2.8 km distant. 586

(c) Esmeraldas in 2000

3.279. In relation to the spraying wi thin Colombia in the area
adjacent to the Ecuadorian province of Esmeraldas, Ecuador

suggests that “the evidence from Mataje […] demonst rates that

the aerial sprayings began to exert their effects on the village

also in late 2000.” 587 It suggests that the evidence of witnesses

30, 32, 33, 34, 36, 37, 38 and 39 “belie Colombia’s criticism of

the ‘vague’ dates described in the statements of t he Mataje
588
residents.”

3.280. However, none of the witnesses from Mataje give any

indication of the period in which the sprayings are alleged to
have occurred; all of them merely allege – 8 or 9 years after the

event – that they experienced spraying in 2000, without further

specification. Ecuador’s suggestion that the effects began to be

felt in “late 2000” appears to be an extrapolation back from the

spray data.

586 CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, p p. 93-94, Fig. 19; se e also CR, Vol. I, Appendix, pp.
174-175, Fig. 19.
587 ER, para. 3.84.
588 ER, para. 3.86.inconceivable that residents of Mataje , even if on the riverbank,

would have heard, let alone seen, the spray planes.

3.283. In support of its assertions , Ecuador relies on a news
590
report published in La Hora on 18 September 2000. However,

once the actual dates of the spray events are analysed, it is

apparent that the closest spray events within Colombia took

place only on 14 and 15 September 2000, and, as noted above,

those spray events were in any case more than 5.6 km away
591
from the location of Mataje . Earlier spray events during the

first week of September 2000 were concentrated considerably
further to the eas t, some 15 km distant, whilst those in August

2000 were likewise some 13 km away.

3.284. Further, there is reason to doubt the allegations of a

number of the witnesses resident in Mataje, due to their

inconsistency with statements previously made in the Dyncorp

proceedings. 592

3.285. Thus Witness 33 alleges in his statement in these

proceedings that “the first time that the planes came by spraying

from Colombia was in the year two thousand. I was working the

field, which is right next to the river. I saw some white planes,

590
591 ER, para. 3.88, quoting ER, Vol. IV, Annex 57.
CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 95- 96, Fig. 20. See also, CR, Vol. I, Appendix , pp.
190-191, 206-207, 216-217, 222-223, 228-229, 234-235, 240-241 and 246-
592; Fig. 20.
CR, Vol. VI, Annexes 73 and 74: Plaintiff Questionnaire,
Arias/Quinteros v. Dyncorp, D.D.C. (EM, Vol. IV, Annex 217, Witness 33);
and Plaintiff Questionnaire, Arias/Quinteros v. Dyn corp, D.D.C. (EM, Vol.
IV, Annex 220, Witness 37), respectively.

286inconceivable that residents of Mataje , even if on the riverbank,

would have heard, let alone seen, the spray planes.

3.283. In support of its assertions , Ecuador relies on a news
590
report published in La Hora on 18 September 2000. However,

once the actual dates of the spray events are analysed, it is

apparent that the closest spray events within Colombia took

place only on 14 and 15 September 2000, and, as noted above,

those spray events were in any case more than 5.6 km away
591
from the location of Mataje . Earlier spray events during the

first week of September 2000 were concentrated considerably
further to the eas t, some 15 km distant, whilst those in August

2000 were likewise some 13 km away.

3.284. Further, there is reason to doubt the allegations of a

number of the witnesses resident in Mataje, due to their

inconsistency with statements previously made in the Dyncorp

proceedings. 592

3.285. Thus Witness 33 alleges in his statement in these

proceedings that “the first time that the planes came by spraying

from Colombia was in the year two thousand. I was working the

field, which is right next to the river. I saw some white planes,

590
591 ER, para. 3.88, quoting ER, Vol. IV, Annex 57.
CR, Vol. II, Annex 18, DIRAN, Analysis of Certain Spraying
Operational Aspects, pp. 95- 96, Fig. 20. See also, CR, Vol. I, Appendix , pp.
190-191, 206-207, 216-217, 222-223, 228-229, 234-235, 240-241 and 246-
592; Fig. 20.
CR, Vol. VI, Annexes 73 and 74: Plaintiff Questionnaire,
Arias/Quinteros v. Dyncorp, D.D.C. (EM, Vol. IV, Annex 217, Witness 33);
and Plaintiff Questionnaire, Arias/Quinteros v. Dyn corp, D.D.C. (EM, Vol.
IV, Annex 220, Witness 37), respectively.unredacted version of the witness statement, and from the
questionnaires filed in the Dyncorp proceedings, is his father. 597

3.289. Witness 37 in his statement in these proceedings claims

spraying in 2000 and on two other occasions, the dates of which

are not specified. He likewise alleges that in relation to the

alleged spraying in 2000, that he was “working on my farm, at

the edge of the river”, when he saw “several planes and

helicopters coming from the Colombian side, dropping a liquid”.
The coincidence with the allegations of Witness 33, his son, is

striking and speaks for itself. In any case, as noted above, there

was no spraying along the border in 2000 nor, quite clearly, in

Ecuadorian territory as alleged.

3.290. Moreover, the evidence of Witness 37 in this regard is

once again inconsistent with the allega tions made in his

questionnaire in the Dyncorp proceedings in which he only

alleges spraying at the “End of 2003”, at which time he claims
that he was working near to the river and saw spray planes. 598

That allegation is itself not worthy of belief, insofar as spraying

in 2003 took place only in the months of January, February,

March and May, and not later in the year, and was in any case

limited to a zone some 8 km to the east of Mataje.

(d) Esmeraldas in 2007, including as regards the Awá

3.291. Finally, in Section 1.D, Ecuador alleges that harm was

suffered in Esmeraldas , including in particular as regards

597 CR, Vol. VI, Annexes 73 and 74.
598 CR, Vol. VI, Annex 74.

288unredacted version of the witness statement, and from the
questionnaires filed in the Dyncorp proceedings, is his father. 597

3.289. Witness 37 in his statement in these proceedings claims

spraying in 2000 and on two other occasions, the dates of which

are not specified. He likewise alleges that in relation to the

alleged spraying in 2000, that he was “working on my farm, at

the edge of the river”, when he saw “several planes and

helicopters coming from the Colombian side, dropping a liquid”.
The coincidence with the allegations of Witness 33, his son, is

striking and speaks for itself. In any case, as noted above, there

was no spraying along the border in 2000 nor, quite clearly, in

Ecuadorian territory as alleged.

3.290. Moreover, the evidence of Witness 37 in this regard is

once again inconsistent with the allega tions made in his

questionnaire in the Dyncorp proceedings in which he only

alleges spraying at the “End of 2003”, at which time he claims
that he was working near to the river and saw spray planes. 598

That allegation is itself not worthy of belief, insofar as spraying

in 2003 took place only in the months of January, February,

March and May, and not later in the year, and was in any case

limited to a zone some 8 km to the east of Mataje.

(d) Esmeraldas in 2007, including as regards the Awá

3.291. Finally, in Section 1.D, Ecuador alleges that harm was

suffered in Esmeraldas , including in particular as regards

597 CR, Vol. VI, Annexes 73 and 74.
598 CR, Vol. VI, Annex 74.significant that Ecuador has put forward no hard scientific

evidence of damage caused by the spraying in Colombia from

this period. As recalled in the Counter -Memorial, Colombia

announced to Ecuador i n December 2006 that it had resumed

spraying in the border areas due to the alarming increase of

illicit coca crops (72%) within the 10- km area. 601 If there had

been any cogent evidence to collect of harm caused within its

territory by spraying in Colombia conducted in early 2007,

Ecuador undoubtedly would have done so. In the event, as

discussed in the Counter -Memorial, Colombia announced to

Ecuador on 9 February 2007, that sprayings had been suspended

on that day. 602

3.294. Further, t he news reports from early February 2007

submitted by Ecuador make clear that members of the

Ecuadorian military were fully aware of spraying within

Colombian territory in early February 2007, and that the

Ecuadorian High Command had been informed. 603 This was an

opportunity to follow up on the reports of spraying: there was no

reason why sampl es could not have been taken, or other

evidence gathered if any damage had in fact occurred. Yet there

are no samples and no scientific evidence, but only

unsubstantiated assertions . In these circumstances, Ecuador’s

weak protestations that “obtaining corr oborative physical

evidence in the field is unusually difficult because of the

601
CCM, Vol. I, paras. 5.81, 5.83 -5.84; see also, Vol. II , Annex 58 and
602. III, Annex 148.
603 CCM, Vol. I, para. 5.92; Vol. II, Annex 28.
ER, Vol. IV, Annex 81; Annex 83.

290significant that Ecuador has put forward no hard scientific

evidence of damage caused by the spraying in Colombia from

this period. As recalled in the Counter -Memorial, Colombia

announced to Ecuador i n December 2006 that it had resumed

spraying in the border areas due to the alarming increase of

illicit coca crops (72%) within the 10- km area. 601 If there had

been any cogent evidence to collect of harm caused within its

territory by spraying in Colombia conducted in early 2007,

Ecuador undoubtedly would have done so. In the event, as

discussed in the Counter -Memorial, Colombia announced to

Ecuador on 9 February 2007, that sprayings had been suspended

on that day. 602

3.294. Further, t he news reports from early February 2007

submitted by Ecuador make clear that members of the

Ecuadorian military were fully aware of spraying within

Colombian territory in early February 2007, and that the

Ecuadorian High Command had been informed. 603 This was an

opportunity to follow up on the reports of spraying: there was no

reason why sampl es could not have been taken, or other

evidence gathered if any damage had in fact occurred. Yet there

are no samples and no scientific evidence, but only

unsubstantiated assertions . In these circumstances, Ecuador’s

weak protestations that “obtaining corr oborative physical

evidence in the field is unusually difficult because of the

601
CCM, Vol. I, paras. 5.81, 5.83 -5.84; see also, Vol. II , Annex 58 and
602. III, Annex 148.
603 CCM, Vol. I, para. 5.92; Vol. II, Annex 28.
ER, Vol. IV, Annex 81; Annex 83.took place in Colombian territory at a distance of over 5 km

from his location.

3.296. Thereafter, relying upon the report of Dr Balslev, 609

Ecuador baldly asserts that the spraying in 2007 in Esmeraldas

“posed serious risks to the environment” w ithin Ecuador,

including the mangrove forests in the Cayapas -Mataje
Ecological Reserve. 610 However, as discussed in more detail

below, Dr Balslev’s report is framed solely in terms of potential

risk and contains no findings or expression of opinion that actual

damage was caused, including to the mangrove forests located

in Ecuador. No other evidence of damage is put forward. The

allegation that the mangrove forests had been or would be
affected is, yet again, entirely unsubstantiated.

3.297. The remainder of the section focuses on alleged harm

suffered by the inhabitants of the Awá reservation, relying in

particular on the evidence of witnesses 40 and 41. However, as

has already been discussed, the allegations of witnesses 40 and

41 are not credible. Both assert that they resided in Mataje Alto,
which is located some considerable distance away from the

border with Colombia . Both expressly assert spraying only in

2002, (although the closest spray events in 2002 took place

almost 1 km from the closest point on the border, and were well
611
over 6 km from Mataje Alto itself), and are entirely vague as

609 ER, Vol. II, Annex 4.
610 ER, para. 3.103.
611 CR, Vol. II, A nnex 18, DIRAN, Analysis of Certain Spraying

Operational Aspects, October 2011, pp. 101-102, Fig. 23; see also CR, Vol. I,
Appendix, pp. 252-253 and 258-259, Fig. 23.

292took place in Colombian territory at a distance of over 5 km

from his location.

3.296. Thereafter, relying upon the report of Dr Balslev, 609

Ecuador baldly asserts that the spraying in 2007 in Esmeraldas

“posed serious risks to the environment” w ithin Ecuador,

including the mangrove forests in the Cayapas -Mataje
Ecological Reserve. 610 However, as discussed in more detail

below, Dr Balslev’s report is framed solely in terms of potential

risk and contains no findings or expression of opinion that actual

damage was caused, including to the mangrove forests located

in Ecuador. No other evidence of damage is put forward. The

allegation that the mangrove forests had been or would be
affected is, yet again, entirely unsubstantiated.

3.297. The remainder of the section focuses on alleged harm

suffered by the inhabitants of the Awá reservation, relying in

particular on the evidence of witnesses 40 and 41. However, as

has already been discussed, the allegations of witnesses 40 and

41 are not credible. Both assert that they resided in Mataje Alto,
which is located some considerable distance away from the

border with Colombia . Both expressly assert spraying only in

2002, (although the closest spray events in 2002 took place

almost 1 km from the closest point on the border, and were well
611
over 6 km from Mataje Alto itself), and are entirely vague as

609 ER, Vol. II, Annex 4.
610 ER, para. 3.103.
611 CR, Vol. II, A nnex 18, DIRAN, Analysis of Certain Spraying

Operational Aspects, October 2011, pp. 101-102, Fig. 23; see also CR, Vol. I,
Appendix, pp. 252-253 and 258-259, Fig. 23.most northerly boundary of the Awá Reserve . Further, t he

misleadingly coloured concentric lines on Figure 3.6 show that
even the closest spray event during this period was close to 5 km

distant from Mataje Alto. In fact the closest line in 2004 was

some 8.9 km from Mataje Alto, whilst the closest line during

2005 was 4.6 km away.

3.302. Similarly, insofar as the witnesses might be taken to be

alleging sprayingin 2007, Ecuador’s own Figure 3.7 shows that

the closest spray event in February 2007 was over 7 km from
Mataje Alto, and in excess of 3 km from the sector of the Mataje

River forming the nor thern boundary of the Awá Reserve.

Colombia’s analysis shows that the closest spray event was in
fact 7.3 km from Mataje Alto.

3.303. As such, the allegations of Witnesses 40 and 41, are

simply not credible.

(e) Conclusions as to the witness evidence

3.304. Ecuador has chosen to present its allegations that harm
was suffered within its territory as the result of the spraying on

the basis of four areas in relation to specified periods (although

the areas in question are large, and the periods in question are

long). It is to be presumed that those locations and time periods
were chosen as representing its strongest case, on the basis of

the evidence available to it, that damage was in fact caused.

3.305. However, as shown above, comparison of the spray
flight data with the allegations of the witnesses demonstrates

294most northerly boundary of the Awá Reserve . Further, t he

misleadingly coloured concentric lines on Figure 3.6 show that
even the closest spray event during this period was close to 5 km

distant from Mataje Alto. In fact the closest line in 2004 was

some 8.9 km from Mataje Alto, whilst the closest line during

2005 was 4.6 km away.

3.302. Similarly, insofar as the witnesses might be taken to be

alleging sprayingin 2007, Ecuador’s own Figure 3.7 shows that

the closest spray event in February 2007 was over 7 km from
Mataje Alto, and in excess of 3 km from the sector of the Mataje

River forming the nor thern boundary of the Awá Reserve.

Colombia’s analysis shows that the closest spray event was in
fact 7.3 km from Mataje Alto.

3.303. As such, the allegations of Witnesses 40 and 41, are

simply not credible.

(e) Conclusions as to the witness evidence

3.304. Ecuador has chosen to present its allegations that harm
was suffered within its territory as the result of the spraying on

the basis of four areas in relation to specified periods (although

the areas in question are large, and the periods in question are

long). It is to be presumed that those locations and time periods
were chosen as representing its strongest case, on the basis of

the evidence available to it, that damage was in fact caused.

3.305. However, as shown above, comparison of the spray
flight data with the allegations of the witnesses demonstrates(and the similar claims of individuals from the border reported

elsewhere), are likewise simply incredible.

D. Summary Assessment of the Scientific Evidence

3.308. Having shown in the preceding section that Ecuador’s

case as to the time and location of the spraying are manifestly

false, the present section provides a summary of the scientific

evidence which demonstrates that in any case, thespray mixture,

given the location and manner in which it was sprayed, simply
could not have caused the various effects alleged by Ecuador.

3.309. As noted above, Ecuador has put forward no hard

scientific evidence (as opposed to unsupported allegations) that

damage has occurred as a result of the spraying within
Colombian territory. In particular, there is no scientific

evidence, based on soil or water samples, that the spray mixture

was ever deposited on Ecuadorian territory, nor any evidence

that it caused any damage therein. Ecuador’ s case as to harm is

entirely based on unsupported, unsubstantiated allegations.

3.310. However, by contrast and quite apart from the absence of

any proof of either deposit or harm, all of the available scientific

evidence points to the conclusion that the spray mixture applied

within Colombia did not reach Ecuadorian terri tory in any
significant quantities, and in any case, that it is simply incapable

of causing the effects alleged by the various witnesses relied

upon by Ecuador and the other supposedly supporting evidence.

296(and the similar claims of individuals from the border reported

elsewhere), are likewise simply incredible.

D. Summary Assessment of the Scientific Evidence

3.308. Having shown in the preceding section that Ecuador’s

case as to the time and location of the spraying are manifestly

false, the present section provides a summary of the scientific

evidence which demonstrates that in any case, thespray mixture,

given the location and manner in which it was sprayed, simply
could not have caused the various effects alleged by Ecuador.

3.309. As noted above, Ecuador has put forward no hard

scientific evidence (as opposed to unsupported allegations) that

damage has occurred as a result of the spraying within
Colombian territory. In particular, there is no scientific

evidence, based on soil or water samples, that the spray mixture

was ever deposited on Ecuadorian territory, nor any evidence

that it caused any damage therein. Ecuador’ s case as to harm is

entirely based on unsupported, unsubstantiated allegations.

3.310. However, by contrast and quite apart from the absence of

any proof of either deposit or harm, all of the available scientific

evidence points to the conclusion that the spray mixture applied

within Colombia did not reach Ecuadorian terri tory in any
significant quantities, and in any case, that it is simply incapable

of causing the effects alleged by the various witnesses relied

upon by Ecuador and the other supposedly supporting evidence.relation to these areas Ecuador does not allege that any spraying
took place, nor that any damage has been caused.

3.315. Second, and more significantly , Professor Balslev

expresses no view as to whether damage has in fact occurred as

a result of spraying within Colombia. In this regard, it is

sufficient to refer to Dr Balslev’s ultimate conclusion, containe d

in the final sentence of the last paragraph of the report, that:

“Aerial spraying with herbicides in this border
region has the potential to cause significant damage
to one of the World’s richest and most diverse
biological treasures”. 614

3.316. It is significa nt that Ecuador’s own expert did not feel

able to pitch his conclusions any higher than a general

observation framed in terms of pure possibility. The statement

quoted expresses no conclusion as to whether any harm has in

fact occurred within Ecuador as the result of spraying. Nor,

indeed, does Professor Balslev express any opinion as to

whether the “significant damage ” may even potentially result
from drift, rather than from direct overspray of the areas in

question, nor the quantity of deposition of spray mixture which

would have to be deposited in order to cause such damage. As

Dr Dobson cogently observes, “This is an assertion for which no

evidence that the potential for harm is being realised is
615
presented”.

614 Balslev, ER, Annex 4, p. 51 (emphasis added).
615 CR, Vol. II, Annex 4: Dobson Report (2011), para. 13.

298relation to these areas Ecuador does not allege that any spraying
took place, nor that any damage has been caused.

3.315. Second, and more significantly , Professor Balslev

expresses no view as to whether damage has in fact occurred as

a result of spraying within Colombia. In this regard, it is

sufficient to refer to Dr Balslev’s ultimate conclusion, containe d

in the final sentence of the last paragraph of the report, that:

“Aerial spraying with herbicides in this border
region has the potential to cause significant damage
to one of the World’s richest and most diverse
biological treasures”. 614

3.316. It is significa nt that Ecuador’s own expert did not feel

able to pitch his conclusions any higher than a general

observation framed in terms of pure possibility. The statement

quoted expresses no conclusion as to whether any harm has in

fact occurred within Ecuador as the result of spraying. Nor,

indeed, does Professor Balslev express any opinion as to

whether the “significant damage ” may even potentially result
from drift, rather than from direct overspray of the areas in

question, nor the quantity of deposition of spray mixture which

would have to be deposited in order to cause such damage. As

Dr Dobson cogently observes, “This is an assertion for which no

evidence that the potential for harm is being realised is
615
presented”.

614 Balslev, ER, Annex 4, p. 51 (emphasis added).
615 CR, Vol. II, Annex 4: Dobson Report (2011), para. 13.merely relied on the anthropological literature, their own general

knowledge and experience of the communities in question.

Significantly, the report does not recount that the authors

conducted any interviews with any of the members of the

communities described in relation to their alleged experience of

the harms alleged by Ecuador, supposedly as a result of the
spraying.

3.322. Third, as a consequence, the author’s conclusions are

framed entirely in terms of possibility and an inchoate,

unquantified potential for harm to the way of life and livelihood

of the border communities. The report is replete with such

observations as to the possibility of harm, expressed in
conspicuously general terms. For instance, the authors observe

variously that:

“As an indigenous nation with deep cultural and
economic ties to their homeland, the Cofán are
especially vulnerable to activities that compromi se
the ecological integrity of their territory.”618

“Kichwa-speaking people rely on a predictable rain-
forest-riverine dynamic ecosystem, to which their
economic, social, and cultural lives are well

adapted. However, due to their heavy reliance on
the natural environment, they are acutely vulnerable
to perturbations that depart from these natural
cycles, which can cause significant disruptions to
619
their subsistence and sacred realms.”
“The Afro -Ecuadorians of Esmeraldas are highly
vulnerable to environmental perturbations,

particularly those which might cause the destruction

618
619 Whitten et al., ER, Vol. II, Annex 5, p. 26.
Ibid., p. 31.

300merely relied on the anthropological literature, their own general

knowledge and experience of the communities in question.

Significantly, the report does not recount that the authors

conducted any interviews with any of the members of the

communities described in relation to their alleged experience of

the harms alleged by Ecuador, supposedly as a result of the
spraying.

3.322. Third, as a consequence, the author’s conclusions are

framed entirely in terms of possibility and an inchoate,

unquantified potential for harm to the way of life and livelihood

of the border communities. The report is replete with such

observations as to the possibility of harm, expressed in
conspicuously general terms. For instance, the authors observe

variously that:

“As an indigenous nation with deep cultural and
economic ties to their homeland, the Cofán are
especially vulnerable to activities that compromi se
the ecological integrity of their territory.”618

“Kichwa-speaking people rely on a predictable rain-
forest-riverine dynamic ecosystem, to which their
economic, social, and cultural lives are well

adapted. However, due to their heavy reliance on
the natural environment, they are acutely vulnerable
to perturbations that depart from these natural
cycles, which can cause significant disruptions to
619
their subsistence and sacred realms.”
“The Afro -Ecuadorians of Esmeraldas are highly
vulnerable to environmental perturbations,

particularly those which might cause the destruction

618
619 Whitten et al., ER, Vol. II, Annex 5, p. 26.
Ibid., p. 31. “Due to their heavy reliance on environmental

resources, border communities are extremely
vulnerable to perturbations that upset this balance.
Thus, exposure to herbicide that causes loss of
crops, damage to forest resources, death of

domesticated animals, or sickness, would have
grave conseq622ces for their health and
livelihood.”

3.327. Even assuming that the assertion contained in the first

sentence of the quoted paragraph is true, clearly it is entirely

general, and is applicable equally and indiscriminately to
“perturbations” resulting from any other cause, including

deforestation due to logging, environmental damage due to oil

and mineral extraction activities, and pollution, including

pollution resulting from the use of pesticides and herbicides for

the purposes of agriculture within Ecuador itself. On any view,

the statement is not limited solely to the alleged harm
supposedly resulting from spraying within Colombia.

3.328. However, in addition, given the postulat e of the first

sentence, the second sentence simply begs the question of

whether any harm causing “loss of crops, damage to forest

resources, death of domesticated animals, or sickness” has in

fact occurred as a result of “exposure to herbicide”. Indeed, o n
its face, the statement is entirely neutral as to the source of the

exposure to herbicide which might cause damage. State

responsibility under international law for environmental harm is

not the result of a “would have”. It is not subjunctive.

622
Whitten et al., ER, Vol. II, Annex 5, p. 53 (emphasis added).

302 “Due to their heavy reliance on environmental

resources, border communities are extremely
vulnerable to perturbations that upset this balance.
Thus, exposure to herbicide that causes loss of
crops, damage to forest resources, death of

domesticated animals, or sickness, would have
grave conseq622ces for their health and
livelihood.”

3.327. Even assuming that the assertion contained in the first

sentence of the quoted paragraph is true, clearly it is entirely

general, and is applicable equally and indiscriminately to
“perturbations” resulting from any other cause, including

deforestation due to logging, environmental damage due to oil

and mineral extraction activities, and pollution, including

pollution resulting from the use of pesticides and herbicides for

the purposes of agriculture within Ecuador itself. On any view,

the statement is not limited solely to the alleged harm
supposedly resulting from spraying within Colombia.

3.328. However, in addition, given the postulat e of the first

sentence, the second sentence simply begs the question of

whether any harm causing “loss of crops, damage to forest

resources, death of domesticated animals, or sickness” has in

fact occurred as a result of “exposure to herbicide”. Indeed, o n
its face, the statement is entirely neutral as to the source of the

exposure to herbicide which might cause damage. State

responsibility under international law for environmental harm is

not the result of a “would have”. It is not subjunctive.

622
Whitten et al., ER, Vol. II, Annex 5, p. 53 (emphasis added). • is based on the flawed modeling of drift, which ignores
625
the intercepting effect of vegetation;

• assumes extra vulnerability of humans in the border

region, without any scientific support for that
assumptions; 626

• makes unsupported assertions as to extra vulnerability of

non-human organisms in Ecuador, in particular

amphibians and plants , without any support and in

disregard of the existing scientific literature, the results

of the CICAD II studies , and the conclusions of Dr
627
Dobson’s reports;

• makes no attempt to qua ntify uncertainty, and in any

case, is biased in the way that uncertainty is applied; 628

• takes account of the possibility of extreme adverse

events, with no assessment of the probability of such
629
events occurring(which is low);

• simply assumes, with no scien tific basis, that any risk

factors (to the extent that they actually exist), are

necessarily cumulative; 630and

• in any case, fundamentally misunderstands the logic of
631
risk assessment, and inappropriately relies upon the

625
626 CR, Vol. II, Annex 3: Solomon Report (2011), para. 1(e).
CR, Vol. II, Annex 4: Dobson Report (2011), para. 37; CR, Vol. II,
627ex 3: Solomon Report (2011), para. 46.
CR, Vol. II, Annex 4: Dobson Report (2011), para. 38; CR, Vol. II,
Annex 3: Solomon Report (2011), paras. 47- 49.
628 CR, Vol. II, Annex 3: Solomon Report (2011), para. 38.
629 Ibid., para. 56.
630 Ibid., para. 39.

304 • is based on the flawed modeling of drift, which ignores
625
the intercepting effect of vegetation;

• assumes extra vulnerability of humans in the border

region, without any scientific support for that
assumptions; 626

• makes unsupported assertions as to extra vulnerability of

non-human organisms in Ecuador, in particular

amphibians and plants , without any support and in

disregard of the existing scientific literature, the results

of the CICAD II studies , and the conclusions of Dr
627
Dobson’s reports;

• makes no attempt to qua ntify uncertainty, and in any

case, is biased in the way that uncertainty is applied; 628

• takes account of the possibility of extreme adverse

events, with no assessment of the probability of such
629
events occurring(which is low);

• simply assumes, with no scien tific basis, that any risk

factors (to the extent that they actually exist), are

necessarily cumulative; 630and

• in any case, fundamentally misunderstands the logic of
631
risk assessment, and inappropriately relies upon the

625
626 CR, Vol. II, Annex 3: Solomon Report (2011), para. 1(e).
CR, Vol. II, Annex 4: Dobson Report (2011), para. 37; CR, Vol. II,
627ex 3: Solomon Report (2011), para. 46.
CR, Vol. II, Annex 4: Dobson Report (2011), para. 38; CR, Vol. II,
Annex 3: Solomon Report (2011), paras. 47- 49.
628 CR, Vol. II, Annex 3: Solomon Report (2011), para. 38.
629 Ibid., para. 56.
630 Ibid., para. 39. “In the section on managing uncertainty for risk-

based decision making, Menzie and Booth […]
argue that, in the face of uncertainty, large safety
factors are necessary for making decisions that are
protective. They further argue th at there is great
uncertainty due to lack of knowledge . However,

their own evidence is also lacking in knowledge and
is flawed. The modeling on which their estimates of
exposure were based was unrealistic as it failed to
consider the presence of trees that would act to
intercept drift with the result that their estimates of

exposures are thus highly exaggerated . They claim
that the toxicity of the spray mix ture(s) is unknown,
whereas it is well documented . They claim that the
uncertainty factors are not used, when they were.
The reference dose (RfD) used as a comparison for
exposures of humans was derived by the US EPA

by the use of uncertainty factors. Menzie and Booth
also imply that the database for glyphosate is ‘ poor’
[…] whereas it is very robust for both human and
ecological endpoints . This is illustrated in the
wealth of data in published assessments from

regulators […], and the work of the SAT 634. the
CICAD Scientific Assessment Team].”

3.335. As a consequ ence, when account is taken of the more

realistic modeling of drift carried out by Dr Hewitt (discussed in
the next sub- section), the resulting exposures to the spray

mixture,

“all include large margins of safety, i.e., they are all
thousands 635times less that exposures of
concern.”

Given that this is so, there is no justification for any more

cautious approach – given the likely amounts of deposition in

634
635 CR, Vol. II, Annex 3: Solomon Report (2011), para. 57.
Ibid., para. 57.

306 “In the section on managing uncertainty for risk-

based decision making, Menzie and Booth […]
argue that, in the face of uncertainty, large safety
factors are necessary for making decisions that are
protective. They further argue th at there is great
uncertainty due to lack of knowledge . However,

their own evidence is also lacking in knowledge and
is flawed. The modeling on which their estimates of
exposure were based was unrealistic as it failed to
consider the presence of trees that would act to
intercept drift with the result that their estimates of

exposures are thus highly exaggerated . They claim
that the toxicity of the spray mix ture(s) is unknown,
whereas it is well documented . They claim that the
uncertainty factors are not used, when they were.
The reference dose (RfD) used as a comparison for
exposures of humans was derived by the US EPA

by the use of uncertainty factors. Menzie and Booth
also imply that the database for glyphosate is ‘ poor’
[…] whereas it is very robust for both human and
ecological endpoints . This is illustrated in the
wealth of data in published assessments from

regulators […], and the work of the SAT 634. the
CICAD Scientific Assessment Team].”

3.335. As a consequ ence, when account is taken of the more

realistic modeling of drift carried out by Dr Hewitt (discussed in
the next sub- section), the resulting exposures to the spray

mixture,

“all include large margins of safety, i.e., they are all
thousands 635times less that exposures of
concern.”

Given that this is so, there is no justification for any more

cautious approach – given the likely amounts of deposition in

634
635 CR, Vol. II, Annex 3: Solomon Report (2011), para. 57.
Ibid., para. 57.the border. But spray events at distances of up to 10 km from the

border are irrelevant given that they could, at most, result in the

deposit of infinitesimally small quantities of spray mixture

within Ecuador as a result of drift; moreover any such

deposition would not be concentrated in any one location but
would be spread out over a vast area.

3.340. Even using extreme values, Dr Giles’ concl usions as to

deposition at distances of more than 800m results in deposition

rates which are far below the protective levels of concern for

damage to plants and for damage to farmyard animals.

3.341. Colombia’s own analysis of the sub- set of spray events

within the relevant area shows that only a tiny proportion of

spray events were at the extreme values for speed and/or altitude
637
used by Dr Giles.

3.342. Second, and more importantly, Dr Giles’ assumption that
the border area is entirely devoid of vegetation compounds the

overestimation deriving from the assumption of extreme values

for speed and altitude. Dr Giles proceeds on the counter -factual

basis that the border area is flat and featureless and devoid of

any vegetation as well as ignoring the prevailing wind direc tion.
This results in a further, additional massive overestimation of

drift downwind from spray events, even assuming that the wind

was blowing from Colombia towards Ecuador. As Dr Hewitt

observes, Dr Giles in his modeling:

637
See above, paras. 2.132 -2.133 (speed), 2.145, 2.147 (height); also,
CR, Vol. II, Annex 5: IMA Report (2011), Table 3, p. 6, and Table 8, p. 12.

308the border. But spray events at distances of up to 10 km from the

border are irrelevant given that they could, at most, result in the

deposit of infinitesimally small quantities of spray mixture

within Ecuador as a result of drift; moreover any such

deposition would not be concentrated in any one location but
would be spread out over a vast area.

3.340. Even using extreme values, Dr Giles’ concl usions as to

deposition at distances of more than 800m results in deposition

rates which are far below the protective levels of concern for

damage to plants and for damage to farmyard animals.

3.341. Colombia’s own analysis of the sub- set of spray events

within the relevant area shows that only a tiny proportion of

spray events were at the extreme values for speed and/or altitude
637
used by Dr Giles.

3.342. Second, and more importantly, Dr Giles’ assumption that
the border area is entirely devoid of vegetation compounds the

overestimation deriving from the assumption of extreme values

for speed and altitude. Dr Giles proceeds on the counter -factual

basis that the border area is flat and featureless and devoid of

any vegetation as well as ignoring the prevailing wind direc tion.
This results in a further, additional massive overestimation of

drift downwind from spray events, even assuming that the wind

was blowing from Colombia towards Ecuador. As Dr Hewitt

observes, Dr Giles in his modeling:

637
See above, paras. 2.132 -2.133 (speed), 2.145, 2.147 (height); also,
CR, Vol. II, Annex 5: IMA Report (2011), Table 3, p. 6, and Table 8, p. 12. 639
further, that wind speed is generally relatively low. As
Dr Hewitt observes,

“spray drift is directional and only occurs in the
downwind direction. Predominant wind direct ions
in the border region between Colombia and Ecuador

include winds blowing away from Ecuador which
means that most of the time, any spray drift that
does occur will be away from Ecuador.” 640

3.346. As such, quite apart from the disregard by Dr Giles of

the strong intercepting properties of trees and vegetation in the

border region, Dr Giles’ model ing is not valid whenever the

direction of the wind was from Ecuador towards Colombia.
Although detailed data for specific dates is not available, given

the general tren d of wind direction in the border region and

precautionary measures taken, it is most likely that the majority

of spray events took place at times when the wind was blowing

away from Ecuador.

(4) T HE SCIENTIFIC EVIDEN CE DEMONSTRATES THE LACK OF

SIGNIFICANT TOXICOLOGICAL EFFECT S OF THE SPRAY MIXTURE
FOR HUMANS OR ANIMAL S

3.347. There is an overwhelming body of scientific evidence

which demonstrates that glyphosate in particular, and the

formulated spray mixture as used in the spraying program more

generally, does n ot have significant toxicological effects for

639 CR, Vol. II, Annex 19: Inst itute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate Characterization of the Nariño
and Putumayo Border Zone with Ecuador, Dec. 2011, Vol. II pp. 706-730.
640 CR, Vol. II, Annex 1: Hewitt Report Response to Giles (2011),
para. 2, p. 3.

310 639
further, that wind speed is generally relatively low. As
Dr Hewitt observes,

“spray drift is directional and only occurs in the
downwind direction. Predominant wind direct ions
in the border region between Colombia and Ecuador

include winds blowing away from Ecuador which
means that most of the time, any spray drift that
does occur will be away from Ecuador.” 640

3.346. As such, quite apart from the disregard by Dr Giles of

the strong intercepting properties of trees and vegetation in the

border region, Dr Giles’ model ing is not valid whenever the

direction of the wind was from Ecuador towards Colombia.
Although detailed data for specific dates is not available, given

the general tren d of wind direction in the border region and

precautionary measures taken, it is most likely that the majority

of spray events took place at times when the wind was blowing

away from Ecuador.

(4) T HE SCIENTIFIC EVIDEN CE DEMONSTRATES THE LACK OF

SIGNIFICANT TOXICOLOGICAL EFFECT S OF THE SPRAY MIXTURE
FOR HUMANS OR ANIMAL S

3.347. There is an overwhelming body of scientific evidence

which demonstrates that glyphosate in particular, and the

formulated spray mixture as used in the spraying program more

generally, does n ot have significant toxicological effects for

639 CR, Vol. II, Annex 19: Inst itute of Hydrology, Meteorology and
Environmental Studies (IDEAM), Climate Characterization of the Nariño
and Putumayo Border Zone with Ecuador, Dec. 2011, Vol. II pp. 706-730.
640 CR, Vol. II, Annex 1: Hewitt Report Response to Giles (2011),
para. 2, p. 3. in any amounts, let alone toxicologically significant
642
quantities, or that any harm occurred.”

643
3.351. As explained in Chapter 2, the commercial

formulations containing glyphosate used over the course of the

spraying program are, as Dr Solomon affirms, “toxicologically
644
similar.” Further, all of the spray mixtures used present only a

de minimis risk to humans and animals:

“Toxicologically, there is no difference between the

formulations of glyphosate used in the spray
program. As sprayed in Colombia, formulations
present de minimis risk to humans and non- target
645
animals.”

Thus, all of Ecuador’s discussion in this regard is irrelevant.

3.352. Although Ecuador attempts to make much of the hazard

labels on the packaging of the undiluted, concentrated

ingredients used in the spray mixture , its argument simply

ignores the fact that the spray mixture as applied is substantially

diluted with water, and the spray mixture presents no hazard to

humans “as sprayed”. 646 A similar conclusion applies as to the

hazard for animals. As Dr Solomon observes:

“There is confusion between the toxicity of the
concentrated product and the diluted spray. Based
on tests with the spray mixture as used on coca, the
647
risks to humans and animals are de minimis.”

642 CR, Vol. II, Annex 3: Solomon Report (2011), para. 75.
643
644 Paras. 2.84-2.95, above.
645 CR, Vol. II, Annex 3: Solomon Report (2011), para. 74.
646 Ibid., para. 1(a).
647 Ibid., para. 12.
Ibid., para. 1(b) (emphasis added).

312 in any amounts, let alone toxicologically significant
642
quantities, or that any harm occurred.”

643
3.351. As explained in Chapter 2, the commercial

formulations containing glyphosate used over the course of the

spraying program are, as Dr Solomon affirms, “toxicologically
644
similar.” Further, all of the spray mixtures used present only a

de minimis risk to humans and animals:

“Toxicologically, there is no difference between the

formulations of glyphosate used in the spray
program. As sprayed in Colombia, formulations
present de minimis risk to humans and non- target
645
animals.”

Thus, all of Ecuador’s discussion in this regard is irrelevant.

3.352. Although Ecuador attempts to make much of the hazard

labels on the packaging of the undiluted, concentrated

ingredients used in the spray mixture , its argument simply

ignores the fact that the spray mixture as applied is substantially

diluted with water, and the spray mixture presents no hazard to

humans “as sprayed”. 646 A similar conclusion applies as to the

hazard for animals. As Dr Solomon observes:

“There is confusion between the toxicity of the
concentrated product and the diluted spray. Based
on tests with the spray mixture as used on coca, the
647
risks to humans and animals are de minimis.”

642 CR, Vol. II, Annex 3: Solomon Report (2011), para. 75.
643
644 Paras. 2.84-2.95, above.
645 CR, Vol. II, Annex 3: Solomon Report (2011), para. 74.
646 Ibid., para. 1(a).
647 Ibid., para. 12.
Ibid., para. 1(b) (emphasis added).not affect their toxicological properties: again, the test results on

each of the Alpha, Bravo and Charlie spray mixtures carried out

in 2002 and 2003, showed a “complete lack of significant oral,

dermal, and inhalation toxicity of the spray mix ture”. As Dr
Solomon concludes, this “demonstrates that the exposures from

the diluted spray are below the threshold of toxicity.” 652

3.355. Ecuador at tempts to make much of the supposedly

unknown composition of the adjuvant Cosmo- Flux 411F, and

misleadingly suggests that the supposed four-fold increase in the

effectiveness of the spray mixture on plants applies generally .

Dr Solomon explains why both al legations are misplaced. His

conclusion is likewise that Cosmo -Flux 411F in the quantities

present in the spray mixture

“...is of low toxicity to animals and does not

enhance the653xicity of the spray mix ture to
animals.”

3.356. It bears noting that the CICAD I study likewise

concluded that

“...the addition of the adjuvant Cosmo- Flux® to the

glyphosate did not change i654toxicological
properties to mammals.”

As observed by Dr Solomon, that conclusion is again supported

by the results of the 2002 and 2003 test s on the Alpha, B ravo

and Charlie spray mixtures. 655

652 CR, Vol. II, Annex 3: Solomon Report (2011), para. 13.
653 Ibid., para. 1(c).
654 Ibid., para. 16, quoting Solomon et al. 2007b.

314not affect their toxicological properties: again, the test results on

each of the Alpha, Bravo and Charlie spray mixtures carried out

in 2002 and 2003, showed a “complete lack of significant oral,

dermal, and inhalation toxicity of the spray mix ture”. As Dr
Solomon concludes, this “demonstrates that the exposures from

the diluted spray are below the threshold of toxicity.” 652

3.355. Ecuador at tempts to make much of the supposedly

unknown composition of the adjuvant Cosmo- Flux 411F, and

misleadingly suggests that the supposed four-fold increase in the

effectiveness of the spray mixture on plants applies generally .

Dr Solomon explains why both al legations are misplaced. His

conclusion is likewise that Cosmo -Flux 411F in the quantities

present in the spray mixture

“...is of low toxicity to animals and does not

enhance the653xicity of the spray mix ture to
animals.”

3.356. It bears noting that the CICAD I study likewise

concluded that

“...the addition of the adjuvant Cosmo- Flux® to the

glyphosate did not change i654toxicological
properties to mammals.”

As observed by Dr Solomon, that conclusion is again supported

by the results of the 2002 and 2003 test s on the Alpha, B ravo

and Charlie spray mixtures. 655

652 CR, Vol. II, Annex 3: Solomon Report (2011), para. 13.
653 Ibid., para. 1(c).
654 Ibid., para. 16, quoting Solomon et al. 2007b.does not relate specifically to the effects of Cosmo -Flux 411F

when combined with glyphosate. 659

3.361. On that basis, Dr Solomon’s view is that “there is no

support for the claim that Cosmo- Flux 411F enhances the

efficacy of formulated glyphosate to a s ignificant degree”. 660

At most “[e]fficacy in plants may be enhanced to a small degree

but not the 4-fold claimed.” 661

3.362. Further, although Dr Weller extensively discusses the

supposed “enhanced toxicity” 662 of glyphosate due to the

addition of Cosmo- Flux 411F, that discussion “is moot as this

enhanced toxicity does not occur.” 663 At most the question is

one of increased efficacy of the spray mixture on plants, due to

greater penetration by the action of surfactants, and not one of

any greater toxicity of glyphosate, the active ingredient. As

Dr Dobson observes in relation to the same argument made by

Dr Weller:

“If a plant would have been killed anyway by a

spray not containing Cosmo-Flux 411F, the addition
of Cosmo-Flux 411F would not influence the result
of spraying – the dead plants cannot die more than
664
once.”

3.363. As Dr Dobson observes, the only effect that Cosmo-Flux

411F might have upon the efficacy of the spray mixture , is that

659
660 CR, Vol. II, Annex 3: Solomon Report (2011), para. 62.
661 Ibid.
662 Ibid., para. 1(c).
Ibid., para. 62, referring to Weller, ER, Vol. II, Annex 3, p. 16.
663 Ibid.
664 CR, Vol. II, Annex 4: Dobson Report (2011), para. 15.

316does not relate specifically to the effects of Cosmo -Flux 411F

when combined with glyphosate. 659

3.361. On that basis, Dr Solomon’s view is that “there is no

support for the claim that Cosmo- Flux 411F enhances the

efficacy of formulated glyphosate to a s ignificant degree”. 660

At most “[e]fficacy in plants may be enhanced to a small degree

but not the 4-fold claimed.” 661

3.362. Further, although Dr Weller extensively discusses the

supposed “enhanced toxicity” 662 of glyphosate due to the

addition of Cosmo- Flux 411F, that discussion “is moot as this

enhanced toxicity does not occur.” 663 At most the question is

one of increased efficacy of the spray mixture on plants, due to

greater penetration by the action of surfactants, and not one of

any greater toxicity of glyphosate, the active ingredient. As

Dr Dobson observes in relation to the same argument made by

Dr Weller:

“If a plant would have been killed anyway by a

spray not containing Cosmo-Flux 411F, the addition
of Cosmo-Flux 411F would not influence the result
of spraying – the dead plants cannot die more than
664
once.”

3.363. As Dr Dobson observes, the only effect that Cosmo-Flux

411F might have upon the efficacy of the spray mixture , is that

659
660 CR, Vol. II, Annex 3: Solomon Report (2011), para. 62.
661 Ibid.
662 Ibid., para. 1(c).
Ibid., para. 62, referring to Weller, ER, Vol. II, Annex 3, p. 16.
663 Ibid.
664 CR, Vol. II, Annex 4: Dobson Report (2011), para. 15. “...the mixtures as sprayed in Colombian territory

do not present a hazard to humans in that country.
Given the greatly reduced or non-existent exposures
in Ecuador, the spray mixture presents no hazard to
669
humans and the environment in Ecuador.”

3.367. That conclusion accords with his previous published

conclusion, expressed jointly with the colleagues with whom he

carried out the independent CICAD I studies, that the outcome

of the risk assessment for humans in Colombia was that the risk

of adverse effects was negligible, even from a direct

overspray. 670

3.368. It may further be noted that the weight of scientific

evidence is clear that neither glyphosate nor Roundup (i.e. a mix

containing glyphosate as the active ingredient, formulated with

POEA) are carcinogenic.

3.369. Professor Williams is the lead author of the leading

literature review as to the potential carcinogenic and genotoxic

properties of glyphosate and Roundup formulations, published

in 2000. His expert opinion in his report filed in the Dyncorp

proceedings, having examined literature subsequent to that

review remained that “the available evidence attests to the

669 CR, Vol. II, Annex 3: Solomon Report (2011), para. 22.
670 Solomon, K.R., Anadon, A., Carrasquilla, G., Cerdeira, A.,
Marshall, E.J.P, and Sanin, L.H., 2007. Coca and poppy era dication in
Colombia: Environmental and human health assessment of aerially applied

glyphosate. Rev Environ Contam Toxicol 190:43-125. Available at:
http://www.adkn.org/assets/adkn_49.pdf (Last visited 10 Nov. 2011); CCM,
Vol. III, Annex 116: CICAD I, p. 90.

318 “...the mixtures as sprayed in Colombian territory

do not present a hazard to humans in that country.
Given the greatly reduced or non-existent exposures
in Ecuador, the spray mixture presents no hazard to
669
humans and the environment in Ecuador.”

3.367. That conclusion accords with his previous published

conclusion, expressed jointly with the colleagues with whom he

carried out the independent CICAD I studies, that the outcome

of the risk assessment for humans in Colombia was that the risk

of adverse effects was negligible, even from a direct

overspray. 670

3.368. It may further be noted that the weight of scientific

evidence is clear that neither glyphosate nor Roundup (i.e. a mix

containing glyphosate as the active ingredient, formulated with

POEA) are carcinogenic.

3.369. Professor Williams is the lead author of the leading

literature review as to the potential carcinogenic and genotoxic

properties of glyphosate and Roundup formulations, published

in 2000. His expert opinion in his report filed in the Dyncorp

proceedings, having examined literature subsequent to that

review remained that “the available evidence attests to the

669 CR, Vol. II, Annex 3: Solomon Report (2011), para. 22.
670 Solomon, K.R., Anadon, A., Carrasquilla, G., Cerdeira, A.,
Marshall, E.J.P, and Sanin, L.H., 2007. Coca and poppy era dication in
Colombia: Environmental and human health assessment of aerially applied

glyphosate. Rev Environ Contam Toxicol 190:43-125. Available at:
http://www.adkn.org/assets/adkn_49.pdf (Last visited 10 Nov. 2011); CCM,
Vol. III, Annex 116: CICAD I, p. 90.individuals resident in Sucumbíos in the communities of

“Chone-2, Yanamarum [sic], Playera Oriental, Fuerzas Unidas,
Puerto Escondido, Corazon Orense, Santa Marianita, San

Francisco, and Las Salinas 5 de Agosto [sic]” were analysed; the

names of the majority of these communities will be familiar

given that they are the same communities in which a number of

the witnesses relied upon by Ecuador reside, or which are

mentioned in the press reports.

3.372. It appears that the study is no better than that conducted

in 2007 led by Dr Paz -y-Miño insofar as it merely assumes,

based on the assertions of the individuals unsupported by any

concrete evidence, that they had in fact been exposed to the
spray mixture. It is thus open to m any of the same criticisms

noted by Professor Williams in his report as to methodological

deficiencies.

3.373. However this may be, the conclusion of the paper was

that the results obtained showed “no chromosomal alterations in

the analyzed individuals” and that “the study population did not
675
present significant chromosomal and DNA alterations.

3.374. As to other alleged harms to human health, the various

symptoms allegedly suffered by the witnesses in the present

proceedings parallel those made by the plaintiffs in th e Dyncorp

erroneously records that he was present as a “representative of the
Ombudsman for Indigenous People”.
675 Paz-y-Miño C, Muñoz MJ, Maldonado A, Valladares C, Cumbal N,
Herrera C, Robles P, Eugenia Sánchez M , López -Cortés A, “Baseline
determination in social, health, and genetic areas in communities affected by
glyphosate aerial spraying on the northeastern Ecuadorian border”, Rev
Environ Health 26, pp. 50, 45, respectively.

320individuals resident in Sucumbíos in the communities of

“Chone-2, Yanamarum [sic], Playera Oriental, Fuerzas Unidas,
Puerto Escondido, Corazon Orense, Santa Marianita, San

Francisco, and Las Salinas 5 de Agosto [sic]” were analysed; the

names of the majority of these communities will be familiar

given that they are the same communities in which a number of

the witnesses relied upon by Ecuador reside, or which are

mentioned in the press reports.

3.372. It appears that the study is no better than that conducted

in 2007 led by Dr Paz -y-Miño insofar as it merely assumes,

based on the assertions of the individuals unsupported by any

concrete evidence, that they had in fact been exposed to the
spray mixture. It is thus open to m any of the same criticisms

noted by Professor Williams in his report as to methodological

deficiencies.

3.373. However this may be, the conclusion of the paper was

that the results obtained showed “no chromosomal alterations in

the analyzed individuals” and that “the study population did not
675
present significant chromosomal and DNA alterations.

3.374. As to other alleged harms to human health, the various

symptoms allegedly suffered by the witnesses in the present

proceedings parallel those made by the plaintiffs in th e Dyncorp

erroneously records that he was present as a “representative of the
Ombudsman for Indigenous People”.
675 Paz-y-Miño C, Muñoz MJ, Maldonado A, Valladares C, Cumbal N,
Herrera C, Robles P, Eugenia Sánchez M , López -Cortés A, “Baseline
determination in social, health, and genetic areas in communities affected by
glyphosate aerial spraying on the northeastern Ecuadorian border”, Rev
Environ Health 26, pp. 50, 45, respectively.even under direct overspray, is at most a slight skin irritant,

although some tests on rabbits disclosed no evidence of skin
678
irritation.

3.379. As Dr Krieger, notes, that conclusion is “in line with the

results of prior studies on similar glyp hosate formulations”, in

particular those formulated with POEA, which showed that they
were “only slight ly irritating to the skin”. 679 In particular, he

notes that even an occlusion test of unformulated glyphosate on

humans (i.e. consisting of the applicati on of concentrated

glyphosate to the skin under gauze patches for a period of 24

hours per day for three weeks) resulted in only slight irritation,

and did not cause skin sensitization, photoirritation or
680
photosensitization.

3.380. Similarly, in relation to eye irritation, again on the basis

of, inter alia, the Alpha, Bravo, Charlie tests, and the CICAD

studies, Dr Krieger noted that testing of the spray mix tures used

in the spraying program, involving the direct application of the

mix to the eyes of rabbits, re sulted in only temporary swelling,
which disappeared within seven days. Notably, where the eyes

of rabbits were rinsed shortly following application, no irritation

or other symptoms were detected. 681

678 CR, Vol. II, Annex 15: Expert Report of Dr R.I. Krieger, Ph.D.
prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.),
Jan. 2011, p. 10.
679 Ibid., p. 9
680 Ibid., p. 9.
681 Ibid., pp. 10-11.

322even under direct overspray, is at most a slight skin irritant,

although some tests on rabbits disclosed no evidence of skin
678
irritation.

3.379. As Dr Krieger, notes, that conclusion is “in line with the

results of prior studies on similar glyp hosate formulations”, in

particular those formulated with POEA, which showed that they
were “only slight ly irritating to the skin”. 679 In particular, he

notes that even an occlusion test of unformulated glyphosate on

humans (i.e. consisting of the applicati on of concentrated

glyphosate to the skin under gauze patches for a period of 24

hours per day for three weeks) resulted in only slight irritation,

and did not cause skin sensitization, photoirritation or
680
photosensitization.

3.380. Similarly, in relation to eye irritation, again on the basis

of, inter alia, the Alpha, Bravo, Charlie tests, and the CICAD

studies, Dr Krieger noted that testing of the spray mix tures used

in the spraying program, involving the direct application of the

mix to the eyes of rabbits, re sulted in only temporary swelling,
which disappeared within seven days. Notably, where the eyes

of rabbits were rinsed shortly following application, no irritation

or other symptoms were detected. 681

678 CR, Vol. II, Annex 15: Expert Report of Dr R.I. Krieger, Ph.D.
prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.),
Jan. 2011, p. 10.
679 Ibid., p. 9
680 Ibid., p. 9.
681 Ibid., pp. 10-11.by these individuals was thus very many orders of magnitude

above the exposure which could be experienced as a result of

drift. Nevertheless, approximately 30% of the individuals

assessed in that study experienced no symptoms at all, and even

at such massive exposures, the remainder suffered only minor
683
stomach injuries.

3.384. Finally, as to respiratory injuries, Dr Krieger expresses

the view, on the basis of tests on rats involving prolonged forced

respiratory exposure for four hour periods, that the spray

mixture used in the spray program has “very low toxicity
(practically non-toxic) via inhalation exposure.” 684 Dr Krieger

further expresses the view that under realistic conditions, similar

to those alleged by the plaintiffs in the Dyncorp proceedings,

there is little possibility for any inhalation exposure . In light of

its chemical properties, glyphosate vapour will not be present in

the air in any significant amounts; the average size of the

droplets in the spray cloud is such that they do not remain

airborne for long, but rather are deposited; and given their size,
685
large droplets are unlikely to be inhaled into the lungs.

(b) Farmyard and domesticated animals and fish

3.385. The various witnesses relied upon by Ecuador make

numerous allegations as to harm to domesticated or farmyard

animals, including horses, pigs, chickens and dogs, as well as

683
CR, Vol. II, Annex 15: Exp ert Report of Dr R.I. Krieger, Ph.D.
prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.),
Jan. 2011, p. 12.
684 Ibid., p. 14.
685 Ibid.

324by these individuals was thus very many orders of magnitude

above the exposure which could be experienced as a result of

drift. Nevertheless, approximately 30% of the individuals

assessed in that study experienced no symptoms at all, and even

at such massive exposures, the remainder suffered only minor
683
stomach injuries.

3.384. Finally, as to respiratory injuries, Dr Krieger expresses

the view, on the basis of tests on rats involving prolonged forced

respiratory exposure for four hour periods, that the spray

mixture used in the spray program has “very low toxicity
(practically non-toxic) via inhalation exposure.” 684 Dr Krieger

further expresses the view that under realistic conditions, similar

to those alleged by the plaintiffs in the Dyncorp proceedings,

there is little possibility for any inhalation exposure . In light of

its chemical properties, glyphosate vapour will not be present in

the air in any significant amounts; the average size of the

droplets in the spray cloud is such that they do not remain

airborne for long, but rather are deposited; and given their size,
685
large droplets are unlikely to be inhaled into the lungs.

(b) Farmyard and domesticated animals and fish

3.385. The various witnesses relied upon by Ecuador make

numerous allegations as to harm to domesticated or farmyard

animals, including horses, pigs, chickens and dogs, as well as

683
CR, Vol. II, Annex 15: Exp ert Report of Dr R.I. Krieger, Ph.D.
prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.),
Jan. 2011, p. 12.
684 Ibid., p. 14.
685 Ibid. operations could have caused the alleged f ish kill of

cachama or tilapia.
There is no scientific basis for plaintiffs’ claims that

the Plan Colombia spraying operations c ould ha690
caused the alleged deaths of farm animals.”

(i) Domestic and farmyard animals

3.388. The evidence of Professor Giesy, based on the scientific

literature is that both unformulated Glyphosate and glyphosate

formulated as Roundup are essentially non -toxic to farm

animals.

3.389. As a general matter, Professor Giesy expresses the expert

opinion that

“...Glyphosate® is classified as essentially non -
toxic to terrestrial (air-breathing, landbased) animals
at any relevant concentrations in the environment
[…]” 691

3.390. In relation to the dermal and oral toxicity of

unformulated glyphosate to farm animals, on the basis of his

review of the literature, Professor Giesy expressed the view that
692
it has “low acute, oral or dermal toxicity to mammals .” In

that regard, he observed that,

“[t]he acute oral dose to be lethal to 50% of the
individuals in a population (LD50) has been
reported to be greater than 5000 mg Glyphosate®

a.i per kilogram body weight ( ‘a.i./kg bw ’), and
chronic effects during whole-life exposures in mice,

690 CR, Vol. II, Annex 12: Expert Report of Dr J.P. Giesy, Ph.D. on
Behalf of the Defendants in Arias/Quinteros v. Dyncorp, Jan. 2011, p. 4.
691
692 Ibid., p. 16.
Ibid.

326 operations could have caused the alleged f ish kill of

cachama or tilapia.
There is no scientific basis for plaintiffs’ claims that

the Plan Colombia spraying operations c ould ha690
caused the alleged deaths of farm animals.”

(i) Domestic and farmyard animals

3.388. The evidence of Professor Giesy, based on the scientific

literature is that both unformulated Glyphosate and glyphosate

formulated as Roundup are essentially non -toxic to farm

animals.

3.389. As a general matter, Professor Giesy expresses the expert

opinion that

“...Glyphosate® is classified as essentially non -
toxic to terrestrial (air-breathing, landbased) animals
at any relevant concentrations in the environment
[…]” 691

3.390. In relation to the dermal and oral toxicity of

unformulated glyphosate to farm animals, on the basis of his

review of the literature, Professor Giesy expressed the view that
692
it has “low acute, oral or dermal toxicity to mammals .” In

that regard, he observed that,

“[t]he acute oral dose to be lethal to 50% of the
individuals in a population (LD50) has been
reported to be greater than 5000 mg Glyphosate®

a.i per kilogram body weight ( ‘a.i./kg bw ’), and
chronic effects during whole-life exposures in mice,

690 CR, Vol. II, Annex 12: Expert Report of Dr J.P. Giesy, Ph.D. on
Behalf of the Defendants in Arias/Quinteros v. Dyncorp, Jan. 2011, p. 4.
691
692 Ibid., p. 16.
Ibid. no fatalities, and an exposure of 608 mg Glyphosate®

a.i./kg had no statistically significant effects on growth;

- an acute oral toxicity study of Roundup® in mallard

ducks reported an LD50 of 5,620 mg/kg bw,

- an acute oral toxicity study on cows, consisting of

feeding Roundup to heifers by naso-gastric tube, resulted
in no effect on heifers fed 400 mg/kg bw in the diet. No

mortality was seen until a dose of 790 mg/kg bw dose,

although the cause of death was “more likely caused by

the physical volume of the Roundup® ingested than to

any toxic effects of the herbicide.” 694

3.392. On the basis of that available literature as to

unformulated glyphosate and Roundup formulated with POEA,

Professor Giesy proceeded to estimate the dose required to cause

death in various farm animals as a result of exposure to spray

mixture of the type used in the PECIG. In doing so, he

proceeded on the basis of a worst case scenario, assuming that

“the farm animals were maximally exposed through a direct
overspray and were further exposed through consumption of

directly over -sprayed plant life .”695 Using an extremely

conservative and protective approach, he concluded that:

“ducks would have to be directly over -sprayed
between 10,086 and 12,217 times before one would
see 50% mortality”; 696

694 CR, Vol. II, Annex 12: Expert Report of Dr J.P. Giesy, Ph.D. on
Behalf of the Defendants in Arias/Quinteros v. Dyncorp, Jan. 2011, p. 17.
695 Ibid., p. 18.
696 Ibid., p. 19.

328 no fatalities, and an exposure of 608 mg Glyphosate®

a.i./kg had no statistically significant effects on growth;

- an acute oral toxicity study of Roundup® in mallard

ducks reported an LD50 of 5,620 mg/kg bw,

- an acute oral toxicity study on cows, consisting of

feeding Roundup to heifers by naso-gastric tube, resulted
in no effect on heifers fed 400 mg/kg bw in the diet. No

mortality was seen until a dose of 790 mg/kg bw dose,

although the cause of death was “more likely caused by

the physical volume of the Roundup® ingested than to

any toxic effects of the herbicide.” 694

3.392. On the basis of that available literature as to

unformulated glyphosate and Roundup formulated with POEA,

Professor Giesy proceeded to estimate the dose required to cause

death in various farm animals as a result of exposure to spray

mixture of the type used in the PECIG. In doing so, he

proceeded on the basis of a worst case scenario, assuming that

“the farm animals were maximally exposed through a direct
overspray and were further exposed through consumption of

directly over -sprayed plant life .”695 Using an extremely

conservative and protective approach, he concluded that:

“ducks would have to be directly over -sprayed
between 10,086 and 12,217 times before one would
see 50% mortality”; 696

694 CR, Vol. II, Annex 12: Expert Report of Dr J.P. Giesy, Ph.D. on
Behalf of the Defendants in Arias/Quinteros v. Dyncorp, Jan. 2011, p. 17.
695 Ibid., p. 18.
696 Ibid., p. 19.livestock.” 701 In that regard, he further noted that a number of

studies, based on calls to animal poison centres concerning

accidental ingestion by dogs, cats, cattle, horses and sheep, show

that “[e]ven accidental poisonings of domestic and farm animals

with glyphosate formulations rarely cause any serious adverse
702
health effects”, and that no deaths of animals were reported.

3.395. The same conclusions were arrived at in the acute

toxicity studies on the spray mixtures Alpha, Bravo and Charlie,
703
ordered by the Department of State and reviewed by the EPA.

(ii) Fish

3.396. In reaching his conclusions, noted above, as to the

impossibility of the fish -kills of cachama and tilapia alleged by
the Mestanza family in the Dyncorp proceedings (as to which

similar allegations by Victor Mestanza were relied upon by

Ecuador in the Memorial, although they are notably absent from

the Rejoinder), 704 Professor Giesy considered the existing

scientific literature as to the toxicity of the spray mixture to the

relevant species of fish, including in particular the observed

LC 50concentrations (i.e. the concentration of the spray mixture

which will cause a 50% mortality rate) for both glyphosate

alone, and formulated Roundup.

701 CR, Vol. II, Annex 15: Expert Report of Dr R.I. Krieger, Ph.D.
prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.), Jan.

7021, p. 14.
703 Ibid., p. 15.
704 Para. 2.41, above. See also, CR, Vol. V, Annexes 56 A-C.
Letter from Victor Mestanza to Roger Mera, Regional Chief
Sucumbíos-Orellana, Ministry of the Environment (14 Oct. 2002), p. 1. EM,
Vol. IV, Annex 237; EM, para. 6.68.

330livestock.” 701 In that regard, he further noted that a number of

studies, based on calls to animal poison centres concerning

accidental ingestion by dogs, cats, cattle, horses and sheep, show

that “[e]ven accidental poisonings of domestic and farm animals

with glyphosate formulations rarely cause any serious adverse
702
health effects”, and that no deaths of animals were reported.

3.395. The same conclusions were arrived at in the acute

toxicity studies on the spray mixtures Alpha, Bravo and Charlie,
703
ordered by the Department of State and reviewed by the EPA.

(ii) Fish

3.396. In reaching his conclusions, noted above, as to the

impossibility of the fish -kills of cachama and tilapia alleged by
the Mestanza family in the Dyncorp proceedings (as to which

similar allegations by Victor Mestanza were relied upon by

Ecuador in the Memorial, although they are notably absent from

the Rejoinder), 704 Professor Giesy considered the existing

scientific literature as to the toxicity of the spray mixture to the

relevant species of fish, including in particular the observed

LC 50concentrations (i.e. the concentration of the spray mixture

which will cause a 50% mortality rate) for both glyphosate

alone, and formulated Roundup.

701 CR, Vol. II, Annex 15: Expert Report of Dr R.I. Krieger, Ph.D.
prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.), Jan.

7021, p. 14.
703 Ibid., p. 15.
704 Para. 2.41, above. See also, CR, Vol. V, Annexes 56 A-C.
Letter from Victor Mestanza to Roger Mera, Regional Chief
Sucumbíos-Orellana, Ministry of the Environment (14 Oct. 2002), p. 1. EM,
Vol. IV, Annex 237; EM, para. 6.68.LC for juvenile tilapia, and 100 direct oversprays for adult
50
tilapia. Even using the lowest LC 50 suggested in the literature for

tilapia, his assessment was that at least 20 direct oversprays of

the ponds would be necessary in order to result in mortality.

(c) Amphibians

3.401. Finally, a brief word should be said as to the alleged

particularly deleterious effects of the spray mixture on

amphibians.

3.402. The suggestion made by Ecuador that amphibians are
particularly sensitive to chemicals is flawed; as highlighted by

Dr Solomon, recent research shows that amphibians in this

regard “are, in fact, less sensitive that some other aquatic
709
species”, although they may be particularly sensitive to other

factors, including disease and change of habitat resulting from

other activities of humans. As Dr Solomon explains, given the
lack of toxicologically significant exposures, any effects on

amphibians in Ecuador would be negligible. 710

(5) G IVEN THE LOCATION AN D MANNER IN WHICH IT WAS
SPRAYED ,THE SPRAY MIXTURE COULD NOT HAVE CAUSED
THE HARMS ALLEGED TO PLANTS

3.403. Finally, the scientific evidence unequivocally shows that

the various allegations of widespread harm to plants cannot be

true. As noted above, Ecuador has produced no hard evidence of

these supposed effects, whether in the form of contemporaneous

709
710 CR, Vol. II, Annex 3: Solomon Report (2011), para. 33.
Ibid., para. 32.

332LC for juvenile tilapia, and 100 direct oversprays for adult
50
tilapia. Even using the lowest LC 50 suggested in the literature for

tilapia, his assessment was that at least 20 direct oversprays of

the ponds would be necessary in order to result in mortality.

(c) Amphibians

3.401. Finally, a brief word should be said as to the alleged

particularly deleterious effects of the spray mixture on

amphibians.

3.402. The suggestion made by Ecuador that amphibians are
particularly sensitive to chemicals is flawed; as highlighted by

Dr Solomon, recent research shows that amphibians in this

regard “are, in fact, less sensitive that some other aquatic
709
species”, although they may be particularly sensitive to other

factors, including disease and change of habitat resulting from

other activities of humans. As Dr Solomon explains, given the
lack of toxicologically significant exposures, any effects on

amphibians in Ecuador would be negligible. 710

(5) G IVEN THE LOCATION AN D MANNER IN WHICH IT WAS
SPRAYED ,THE SPRAY MIXTURE COULD NOT HAVE CAUSED
THE HARMS ALLEGED TO PLANTS

3.403. Finally, the scientific evidence unequivocally shows that

the various allegations of widespread harm to plants cannot be

true. As noted above, Ecuador has produced no hard evidence of

these supposed effects, whether in the form of contemporaneous

709
710 CR, Vol. II, Annex 3: Solomon Report (2011), para. 33.
Ibid., para. 32.observed (even if taken at face valu e) prove nothing, except
perhaps that other sources of plant morbidity are at work in the

border region.

3.407. In any case, Dr Hewitt’s model ing of even the spray

events nearest to the border shows that deposition downwind of

the location of spraying quickly drops off even a short distance

from the spray swath . As a result, even for these spray lines

which occurred closest to the border , the amounts of deposition
of spray mixture within Ecuadorian territory due to drift was

virtually non-existent, and in any case, well below the relevant

levels of concern for plants.

3.408. In this regard, the range of levels of concern for plants

suggested in the CICAD studies (the lowest value for which is

36g/ha), which draws on a wide variety of studies as to the

toxicity of the ing redients of the spray mixture , are, in and of

themselves, designed to be protective of plants in the border
region. 711Yet, as modeled by Dr Hewitt, the deposition due to

drift resulting from even the closest spray lines is orders of

magnitude below even those conservative thresholds. Indeed, in

the vast majority of the spray lines model ed, the amount of

deposition at the Ecuadorian river bank due to drift even from

those worst-case scenarios, is well below even the extremely

cautious level of concern (4.1g/ha) suggested by Dr Weller. As
such, the assertion that widespread harm could have been caused

to vast swathes of plants within Ecuador , including at locations

711 CR, Vol. II, Annex 4: Dobson Report (2011), paras. 39 and 40.

334observed (even if taken at face valu e) prove nothing, except
perhaps that other sources of plant morbidity are at work in the

border region.

3.407. In any case, Dr Hewitt’s model ing of even the spray

events nearest to the border shows that deposition downwind of

the location of spraying quickly drops off even a short distance

from the spray swath . As a result, even for these spray lines

which occurred closest to the border , the amounts of deposition
of spray mixture within Ecuadorian territory due to drift was

virtually non-existent, and in any case, well below the relevant

levels of concern for plants.

3.408. In this regard, the range of levels of concern for plants

suggested in the CICAD studies (the lowest value for which is

36g/ha), which draws on a wide variety of studies as to the

toxicity of the ing redients of the spray mixture , are, in and of

themselves, designed to be protective of plants in the border
region. 711Yet, as modeled by Dr Hewitt, the deposition due to

drift resulting from even the closest spray lines is orders of

magnitude below even those conservative thresholds. Indeed, in

the vast majority of the spray lines model ed, the amount of

deposition at the Ecuadorian river bank due to drift even from

those worst-case scenarios, is well below even the extremely

cautious level of concern (4.1g/ha) suggested by Dr Weller. As
such, the assertion that widespread harm could have been caused

to vast swathes of plants within Ecuador , including at locations

711 CR, Vol. II, Annex 4: Dobson Report (2011), paras. 39 and 40.no such changes in vegetative cover are visible within
716
Ecuador.

3.411. As such, none of the allegations of harm to plants upon

which Ecuador relies are even remotely credible.

E. Overall Appreciation of Ecuador’s Case on Harm

(1) A LLEGATIONS VERSUS E VIDENCE

3.412. In the statements of the witnesses on which Ecuador

principally relies, there is a whole catalogue of allegations of
harm, supposedly caused by the spraying within Colombia .

Those allegations relate to alleged effects on human health,

alleged damage to plants (including both food crops and wild

vegetation), and alleged effects on animals (both domesticated
farm animals and wild animals).

3.413. In assessing the statements of the witnesses (and the

similar claims of individuals reported in media press reports and

other contemporaneous documentation), it is necessary to
distinguish between on the one hand, bare, unsubstantiated

allegations of harm, and on the other, independent, objective

evidence demonstrating that harm did in fact occur as alleged

which Ecuador has failed to provide, either with its Memorial or

in the Reply. It is suggested that the Court should be slow to
accept the allegations of witnesses, or reports unsupported by

other contemporaneous evidence, that the effects alleged in fact

716
See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Dec. 2011, paras. 1.1-1.5, 3.38, 3.51, 3.69 and 3.77.

336no such changes in vegetative cover are visible within
716
Ecuador.

3.411. As such, none of the allegations of harm to plants upon

which Ecuador relies are even remotely credible.

E. Overall Appreciation of Ecuador’s Case on Harm

(1) A LLEGATIONS VERSUS E VIDENCE

3.412. In the statements of the witnesses on which Ecuador

principally relies, there is a whole catalogue of allegations of
harm, supposedly caused by the spraying within Colombia .

Those allegations relate to alleged effects on human health,

alleged damage to plants (including both food crops and wild

vegetation), and alleged effects on animals (both domesticated
farm animals and wild animals).

3.413. In assessing the statements of the witnesses (and the

similar claims of individuals reported in media press reports and

other contemporaneous documentation), it is necessary to
distinguish between on the one hand, bare, unsubstantiated

allegations of harm, and on the other, independent, objective

evidence demonstrating that harm did in fact occur as alleged

which Ecuador has failed to provide, either with its Memorial or

in the Reply. It is suggested that the Court should be slow to
accept the allegations of witnesses, or reports unsupported by

other contemporaneous evidence, that the effects alleged in fact

716
See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Dec. 2011, paras. 1.1-1.5, 3.38, 3.51, 3.69 and 3.77.Ecuador in which it is alleged that harm was suffered was at

such a distance that, consistent with the scientific evidence as to

modeling of drift, and the amount of deposition nec essary in

order for any effects to be felt, the harms alleged could not
possibly have been caused by spraying. Even in those few cases

in which there was some spraying within Colombian territory

close to the locations at which the witnesses allege they wer e

present, the modeling of the closest individual spray lines shows
that the quantities of spray mixture that could have reached even

the closest point on the Ecuadorian bank of the river, let alone

the location where the witnesses were located, were so small

that it could not have caused the harms alleged.

3.417. Further, as shown in Section C above, given the

distances from the nearest spray events, the allegations of many

of the witnesses (and of the individuals quoted in the press and

NGO reports) as to having been directly oversprayed by spray

planes are all undoubtedly and demonstrably false.

3.418. Quite apart from this, as set out in Section D above, the

overwhelming weight of scientific evidence conclusively shows

that the allegations of the witnesses cannot be true:

(a) even as a result of direct overspray, let alone
incidental exposure due to drift, the spray

mixture is incapable of causing the catalogue of

harms to human health alleged; even if one of the

less serious symptoms allegedly suffered, minor

and transient irritation to the eyes, is theoretically

338Ecuador in which it is alleged that harm was suffered was at

such a distance that, consistent with the scientific evidence as to

modeling of drift, and the amount of deposition nec essary in

order for any effects to be felt, the harms alleged could not
possibly have been caused by spraying. Even in those few cases

in which there was some spraying within Colombian territory

close to the locations at which the witnesses allege they wer e

present, the modeling of the closest individual spray lines shows
that the quantities of spray mixture that could have reached even

the closest point on the Ecuadorian bank of the river, let alone

the location where the witnesses were located, were so small

that it could not have caused the harms alleged.

3.417. Further, as shown in Section C above, given the

distances from the nearest spray events, the allegations of many

of the witnesses (and of the individuals quoted in the press and

NGO reports) as to having been directly oversprayed by spray

planes are all undoubtedly and demonstrably false.

3.418. Quite apart from this, as set out in Section D above, the

overwhelming weight of scientific evidence conclusively shows

that the allegations of the witnesses cannot be true:

(a) even as a result of direct overspray, let alone
incidental exposure due to drift, the spray

mixture is incapable of causing the catalogue of

harms to human health alleged; even if one of the

less serious symptoms allegedly suffered, minor

and transient irritation to the eyes, is theoretically resulted in the decimation of the animal

population of the farms of the witnesses in the 3.419. The issue of causation has already been touched upon.
manner alleged by them;
Not only mus t Ecuador demonstrate to the satisfaction of the

(c) finally, as to the alleged damage to plant life, the Court that the harms it alleges did in fact occur, but it must also
scientific evidence as to the amounts of the spray show that if there was harm, it was caused by deposition of the

mixture necessary in order to result in damage to spray mixture as a result of drift from spraying within Colombia.

various plants found in the border region,
including crop species, combined with the 3.420. As to the latter question, the burden of proof is likewise
upon Ecuador to show clearly not only that the harms alleged
evidence as to likely deposition rates even from
occurred, but also that the re was exposure to the spray mixture ,
those spray events closest to the border shows
and that that exposure was the cause of the harm.
that the spray mixture could not have reached
Ecuador in quantities such as to cause the harm 3.421. It is not for Colombia to prove

alleged. Further, the e vidence of many of the two, or even three.

witnesses as to the speed with which harm is
alleged to have occurred after spraying, and the 3.422. Nevertheless, there are multiple other factors which

manner in which it manifested itself is simply not account for a large number of the symptoms alleg
notwithstanding the evident tendency of those in the border
consistent with the evidence as to how glyphosate
region to attribute all of their woes to sp raying (and this whether
functions as a herbicide. In that connection ,
insofar as some of the witnesses do give details or not any spraying in fact took place anywhere near where they
resided).
of the damage to plants allegedly observed, many

of the symptoms alleged (black spotting of 3.423. In its Counter-Memorial, Colombia drew attention to the
leaves, rotting of fruit, etc), are inconsistent with
fact that a variety of other factors could be the cause of the
the biological effects of glyphosate, and, as
various damages attributed by the inha
discussed in the following section rather are region to the aerial spraying, including inter alia

consistent with other pathologies, such as the poverty (resulting in malnutrition and high child mortality rates),
effect of fungi, or are attributable to the poor
poor or inexistent infrastructure (including in particular a lack of
soils in the Amazon region.

340 resulted in the decimation of the animal

population of the farms of the witnesses in the 3.419. The issue of causation has already been touched upon.
manner alleged by them;
Not only mus t Ecuador demonstrate to the satisfaction of the

(c) finally, as to the alleged damage to plant life, the Court that the harms it alleges did in fact occur, but it must also
scientific evidence as to the amounts of the spray show that if there was harm, it was caused by deposition of the

mixture necessary in order to result in damage to spray mixture as a result of drift from spraying within Colombia.

various plants found in the border region,
including crop species, combined with the 3.420. As to the latter question, the burden of proof is likewise
upon Ecuador to show clearly not only that the harms alleged
evidence as to likely deposition rates even from
occurred, but also that the re was exposure to the spray mixture ,
those spray events closest to the border shows
and that that exposure was the cause of the harm.
that the spray mixture could not have reached
Ecuador in quantities such as to cause the harm 3.421. It is not for Colombia to prove

alleged. Further, the e vidence of many of the two, or even three.

witnesses as to the speed with which harm is
alleged to have occurred after spraying, and the 3.422. Nevertheless, there are multiple other factors which

manner in which it manifested itself is simply not account for a large number of the symptoms alleg
notwithstanding the evident tendency of those in the border
consistent with the evidence as to how glyphosate
region to attribute all of their woes to sp raying (and this whether
functions as a herbicide. In that connection ,
insofar as some of the witnesses do give details or not any spraying in fact took place anywhere near where they
resided).
of the damage to plants allegedly observed, many

of the symptoms alleged (black spotting of 3.423. In its Counter-Memorial, Colombia drew attention to the
leaves, rotting of fruit, etc), are inconsistent with
fact that a variety of other factors could be the cause of the
the biological effects of glyphosate, and, as
various damages attributed by the inha
discussed in the following section rather are region to the aerial spraying, including inter alia

consistent with other pathologies, such as the poverty (resulting in malnutrition and high child mortality rates),
effect of fungi, or are attributable to the poor
poor or inexistent infrastructure (including in particular a lack of
soils in the Amazon region.clean running water and sewage tr eatment facilities) and other

noxious activities in the border areas. 718

3.424. Colombia does not discuss again all of that evidence

here, but merely points to the most significant evidence, as well

as additional material which clearly shows that all of the harms

allegedly suffered are consistent with a variety of other causes.

3.425. Ecuador itself admits the “remoteness, poverty and
719
underdevelopment” of the region, and adopts Colombia’s

position that the border population in northern Ecuador “live in

precarious hygienic conditions and only have limited access to
720
medical facilities”.

3.426. Insofar as the witnesses allege that the spraying resulted

in diarrhea and other gastro- intestinal/digestive disorders, such

conditions are notoriously associated with areas characterized by

poverty, inadequate sanitation and health conditions, lack of

potable water, such as the border regions of Ecuador.

3.427. In the Counter-Memorial, Colombia made reference to a

2007 publication by the Ecuadorian Ministry of Public Health,

which listed such causes as being among the principal causes of

718 CCM, paras. 2.1 -2.35; see also, CR, Vol. VI, Annex 65: Pineda -
Medina, Juan and Naizot, Anne-Lise/ FLACSO-Ecuador, Social impact study
of territorial threats in Guadualito and Balsareño villages, Awa Territory.
Advances in the environmental impact study in Guadualito and Balsareño,

719 136-137, 140-141, 149, 155, 167-168, 195-220.
720 ER, para. 3.43.
ER, para. 3.43, quoting CCM, para. 7.37.

342clean running water and sewage tr eatment facilities) and other

noxious activities in the border areas. 718

3.424. Colombia does not discuss again all of that evidence

here, but merely points to the most significant evidence, as well

as additional material which clearly shows that all of the harms

allegedly suffered are consistent with a variety of other causes.

3.425. Ecuador itself admits the “remoteness, poverty and
719
underdevelopment” of the region, and adopts Colombia’s

position that the border population in northern Ecuador “live in

precarious hygienic conditions and only have limited access to
720
medical facilities”.

3.426. Insofar as the witnesses allege that the spraying resulted

in diarrhea and other gastro- intestinal/digestive disorders, such

conditions are notoriously associated with areas characterized by

poverty, inadequate sanitation and health conditions, lack of

potable water, such as the border regions of Ecuador.

3.427. In the Counter-Memorial, Colombia made reference to a

2007 publication by the Ecuadorian Ministry of Public Health,

which listed such causes as being among the principal causes of

718 CCM, paras. 2.1 -2.35; see also, CR, Vol. VI, Annex 65: Pineda -
Medina, Juan and Naizot, Anne-Lise/ FLACSO-Ecuador, Social impact study
of territorial threats in Guadualito and Balsareño villages, Awa Territory.
Advances in the environmental impact study in Guadualito and Balsareño,

719 136-137, 140-141, 149, 155, 167-168, 195-220.
720 ER, para. 3.43.
ER, para. 3.43, quoting CCM, para. 7.37. “Intestinal parasitosis ranks first with 43.1 per 1000
inhabitants in the total for out -patient consultation
on the frontier corridor. The second cause was
primary hypertension, at a rate of 27.3 per 1000

inhabitants.
There is a predominance of infectious diseases

which are the main cause of death in the corridor,
together representing 138.4 per 1000 inhabitants,
with a predominance of parasitosis (41.3 per 1000
inhabitants), urinary tract infections (26.7), acute
non-specific infection of the respiratory tract (26),

infectious origin diarrhea and gastroenteritis (25.5),
acute rhinopharyngitis (17.7), acute tonsillitis (8.3)
), pneumonia (7.6), acute bronchitis (6.9) and
bacterial intestinal infections (4.4).

The diseases of the gastrointestinal tract – chronic
gastritis (10.2), non- specific gastritis (5.3) are also

major causes o725he demand for health services in
the corridor.”

3.429. Further, Colombia in its Counter -Memorial also made

reference to the Public Health Surveillance Syst em of

Intoxications due to Pesticides, instituted by Ecuador in 2007
pursuant to a bilateral technical and scientific cooperation

agreement between Colombia and Ecuador, and jointly financed

by the two States as well as PAHO and the WHO. 726Although

Colombia drew attention to the fact that Ecuador had made no

mention of this initiative, significantly, in its Reply, Ecuador

again chose to ignore entirely the program and its findings.

725 CR, Vol. VI, Annex 64: Organismo Andino de Salud, Hipolito
Hunanue Agreement, Analysis of Health Situation in the Border,
Pacific/Andean Corridors Nariño/Tulcán - San Lorenzo (Colombi a -
Ecuador), 2009, pp. 68-69.
726 CCM, para. 2.38

344 “Intestinal parasitosis ranks first with 43.1 per 1000
inhabitants in the total for out -patient consultation
on the frontier corridor. The second cause was
primary hypertension, at a rate of 27.3 per 1000

inhabitants.
There is a predominance of infectious diseases

which are the main cause of death in the corridor,
together representing 138.4 per 1000 inhabitants,
with a predominance of parasitosis (41.3 per 1000
inhabitants), urinary tract infections (26.7), acute
non-specific infection of the respiratory tract (26),

infectious origin diarrhea and gastroenteritis (25.5),
acute rhinopharyngitis (17.7), acute tonsillitis (8.3)
), pneumonia (7.6), acute bronchitis (6.9) and
bacterial intestinal infections (4.4).

The diseases of the gastrointestinal tract – chronic
gastritis (10.2), non- specific gastritis (5.3) are also

major causes o725he demand for health services in
the corridor.”

3.429. Further, Colombia in its Counter -Memorial also made

reference to the Public Health Surveillance Syst em of

Intoxications due to Pesticides, instituted by Ecuador in 2007
pursuant to a bilateral technical and scientific cooperation

agreement between Colombia and Ecuador, and jointly financed

by the two States as well as PAHO and the WHO. 726Although

Colombia drew attention to the fact that Ecuador had made no

mention of this initiative, significantly, in its Reply, Ecuador

again chose to ignore entirely the program and its findings.

725 CR, Vol. VI, Annex 64: Organismo Andino de Salud, Hipolito
Hunanue Agreement, Analysis of Health Situation in the Border,
Pacific/Andean Corridors Nariño/Tulcán - San Lorenzo (Colombi a -
Ecuador), 2009, pp. 68-69.
726 CCM, para. 2.38water, the close proximity of humans to livestock, and the heavy
728
insect and rodent populations”. In this regard, Dr Smalligan
notes that the public health literature has recorded rates of

infection with intestinal parasites approachin g 100% of the

population. 729

3.433. Similarly, skin diseases, including recurrent rashes,

itching, irritation and infections are widespread; due to “the lack

of clean water, indoor plumbing and adequate sewage treatment

and disposal, combined with the fact that man y people live with

dirt or wooden floors, the opportunity for skin infections is
730
everpresent”. As Dr Smalligan explains:

“There is also a lack of first aid materials and
knowledge of how to clean and dress fresh wounds

by the lay public. All of these fact ors contribute to
the frequency with which we would see
Staphylococcal and Streptococcal skin infections
among our patients. Insect bites occur daily to most

people due to the homes lacking glass windows or
screens. Scratching of these insect bites with di rty
fingernails and hands are a common method of
contamination with these organisms which cause

characteristic skin lesions, namely impetigo,
pyodermatitis, furuncles and carbuncles (or small
abscesses). These lesions are quite characteristic
and are usually diagnosed and treated clinically. The

next most common recurrent rash is scabies which
is caused by a microscopic mite and causes intense
itching which can then become secondarily infected
with the Staph or Strep mentioned above. Due to the

humid condit ions one also frequently encounters

728 CR, Vol. II, Annex 13: Expert Report of Dr R.D. Smalligan, M.D.,
M.P.H., prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.),
Jan. 2011, p.7.
729 Ibid.
730 Ibid., p. 8.

346water, the close proximity of humans to livestock, and the heavy
728
insect and rodent populations”. In this regard, Dr Smalligan
notes that the public health literature has recorded rates of

infection with intestinal parasites approachin g 100% of the

population. 729

3.433. Similarly, skin diseases, including recurrent rashes,

itching, irritation and infections are widespread; due to “the lack

of clean water, indoor plumbing and adequate sewage treatment

and disposal, combined with the fact that man y people live with

dirt or wooden floors, the opportunity for skin infections is
730
everpresent”. As Dr Smalligan explains:

“There is also a lack of first aid materials and
knowledge of how to clean and dress fresh wounds

by the lay public. All of these fact ors contribute to
the frequency with which we would see
Staphylococcal and Streptococcal skin infections
among our patients. Insect bites occur daily to most

people due to the homes lacking glass windows or
screens. Scratching of these insect bites with di rty
fingernails and hands are a common method of
contamination with these organisms which cause

characteristic skin lesions, namely impetigo,
pyodermatitis, furuncles and carbuncles (or small
abscesses). These lesions are quite characteristic
and are usually diagnosed and treated clinically. The

next most common recurrent rash is scabies which
is caused by a microscopic mite and causes intense
itching which can then become secondarily infected
with the Staph or Strep mentioned above. Due to the

humid condit ions one also frequently encounters

728 CR, Vol. II, Annex 13: Expert Report of Dr R.D. Smalligan, M.D.,
M.P.H., prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.),
Jan. 2011, p.7.
729 Ibid.
730 Ibid., p. 8.bacterial) is also present, as are a variety of other eye

conditions. 734

3.436. As such, the various health conditions complained of by

the witnesses are potentially attributable to a number of other

possible causes, none of which have anything to do with the

spraying in Colombia.

3.437. There are also a variety of other potential causes of the

other harms alleged by the Ecuadorian witnesses.

3.438. As regards the alleged harms to crops, plant diseases are
735
prevalent in tropical environments. They are particularly

widespread in the border regions of Ecuador due to, inter a lia,

the poor quality of the soil and the fact that generally accepted

agricultural techniques, including crop rotation, the use of

fertilizers and where appropriate, the use of pesticides, are
736
generally not followed.

3.439. Further, more generally, there are o ther external causes

operative in the border regions which result in general

degradation of the environment. In particular, a study carried out

734
CR, Vol. II, Annex 13: Expert Report of Dr R.D. Smalligan, M.D.,
M.P.H., prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.),
Jan. 2011, p. 9.
735 CR, Vol. II, Annex 14: Expert Report of Dr R.C. Ploetz, Ph.D. on
Behalf of the Defendants in Arias/Quinteros v. Dyncorp, Jan. 2011, p.2.
736 CR, Vol. II, Annex 11: Expert Report of Dr A. Atalay, Ph.D., CPSS,
prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.), Jan.

2011, pp. 4-7. See also the results of the tests conducted in early 2004 on soil
samples taken from Puerto Mestanza, which identified numerous problems
with the soil, including a lack of nutrients, acidity and iron and aluminium
toxicity, an excess of potassium, and deficiencies in zinc and boron, CR, Vol.
IV, Annex 44 (Soil Samples).

348bacterial) is also present, as are a variety of other eye

conditions. 734

3.436. As such, the various health conditions complained of by

the witnesses are potentially attributable to a number of other

possible causes, none of which have anything to do with the

spraying in Colombia.

3.437. There are also a variety of other potential causes of the

other harms alleged by the Ecuadorian witnesses.

3.438. As regards the alleged harms to crops, plant diseases are
735
prevalent in tropical environments. They are particularly

widespread in the border regions of Ecuador due to, inter a lia,

the poor quality of the soil and the fact that generally accepted

agricultural techniques, including crop rotation, the use of

fertilizers and where appropriate, the use of pesticides, are
736
generally not followed.

3.439. Further, more generally, there are o ther external causes

operative in the border regions which result in general

degradation of the environment. In particular, a study carried out

734
CR, Vol. II, Annex 13: Expert Report of Dr R.D. Smalligan, M.D.,
M.P.H., prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.),
Jan. 2011, p. 9.
735 CR, Vol. II, Annex 14: Expert Report of Dr R.C. Ploetz, Ph.D. on
Behalf of the Defendants in Arias/Quinteros v. Dyncorp, Jan. 2011, p.2.
736 CR, Vol. II, Annex 11: Expert Report of Dr A. Atalay, Ph.D., CPSS,
prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.), Jan.

2011, pp. 4-7. See also the results of the tests conducted in early 2004 on soil
samples taken from Puerto Mestanza, which identified numerous problems
with the soil, including a lack of nutrients, acidity and iron and aluminium
toxicity, an excess of potassium, and deficiencies in zinc and boron, CR, Vol.
IV, Annex 44 (Soil Samples). 739
vomiting. Similarly, logging, quite apart from resulting in
deforestation, causes widespread pollution a nd other

environmental damage.

3.441. As such, it is clear that all of the effects allegedly

suffered by the witnesses, including in particular the various

health effects which they claim to have experienced as a result

of spraying within Colombia, to the extent that they did in fact

occur, have a variety of other potential causes. Many of the
potential alternative causes of the health symptoms allegedly

experienced by the witness are endemic in the border region.

Further, and in any case, in the light of the scie ntific evidence

that the spray mixture is incapable of causing harms of the types

alleged, and that if any deposition due to drift did occur, the

quantities deposited did not exceed insignificant, de minimis

quantities, the allegations of the witnesses tha t the harms they
claim to have suffered (if such harms did in fact occur) were

caused by spraying must be dismissed as being without any

basis.

(3) PUERTO M ESTANZA

3.442. The fatuity and falsity of Ecuador’s case on harm is

nowhere better illustrated that by tak ing the crowning glory of

harm in the Memorial – otherwise known as the “Catastrophe of

Puerto Mestanza”. It is indeed a catastrophe –for Ecuador.

739 CR, Vol. VI, Annex 65: Social impact study of territorial threats in
Guadualito and Balsareño villages, Awa Territory. Advances in the
environmental impact study in Guadualito and Balsareño, pp. 199 -200.

350 739
vomiting. Similarly, logging, quite apart from resulting in
deforestation, causes widespread pollution a nd other

environmental damage.

3.441. As such, it is clear that all of the effects allegedly

suffered by the witnesses, including in particular the various

health effects which they claim to have experienced as a result

of spraying within Colombia, to the extent that they did in fact

occur, have a variety of other potential causes. Many of the
potential alternative causes of the health symptoms allegedly

experienced by the witness are endemic in the border region.

Further, and in any case, in the light of the scie ntific evidence

that the spray mixture is incapable of causing harms of the types

alleged, and that if any deposition due to drift did occur, the

quantities deposited did not exceed insignificant, de minimis

quantities, the allegations of the witnesses tha t the harms they
claim to have suffered (if such harms did in fact occur) were

caused by spraying must be dismissed as being without any

basis.

(3) PUERTO M ESTANZA

3.442. The fatuity and falsity of Ecuador’s case on harm is

nowhere better illustrated that by tak ing the crowning glory of

harm in the Memorial – otherwise known as the “Catastrophe of

Puerto Mestanza”. It is indeed a catastrophe –for Ecuador.

739 CR, Vol. VI, Annex 65: Social impact study of territorial threats in
Guadualito and Balsareño villages, Awa Territory. Advances in the
environmental impact study in Guadualito and Balsareño, pp. 199 -200.3.447. And this is all the more significant in that the claim was

particularized and it was dated . It could be tested. Unusually

among the other evidence put forward by Ecuador, in his letter

dated 14 October 2002 to the Ecuadorian authorities, Mr

Mestanza made allegations of spraying relating to specific
months and even specific dates, and alleged particularly serious

harm to his business operations:

“In the fumigations of November 2000, I lost
30,000 fish as a direct effect of the chemical
compound used in the fumigations, all dead,

4 hectares of plantain, 2 of yucca and farmyard
animals. On the second occasio n of the sprayings,
conducted in early January 2002, in which spraying
planes flew for three consecutively days over the
pools, I was affected by the death of 60,000 fish,

10 hectares of maize and the partial death of
6 hectares of sugarcane, and the total loss of the
fruit of a citrus plantation. The third time, which
began in early September of this year, I had a huge
financial loss, as I lost 400 ducks and 80,000 fish,

the pigs were sick, and the humans fell ill with
itchiness, throat infections, diarrhe a and headaches.
The fourth time was Monday 7th and Thursday 10th
of October of this year, when the spraying planes
flew over my property again. There is clear

evidence of the death of woodlands, orito and
sugarcane;743at is practically liquidating my
project...”

3.448. As Colombia pointed out in the Counter -Memorial,

Mr Mestanza and seven members of his family were plaintiffs in
the Arias v. Dyncorp proceedings. 744 It emerged during the

taking of depositions in those proceedings that 5 members of the

743
744 EM, Vol. IV, Annex 237.
CCM, Vol. I, para. 1.37.

3523.447. And this is all the more significant in that the claim was

particularized and it was dated . It could be tested. Unusually

among the other evidence put forward by Ecuador, in his letter

dated 14 October 2002 to the Ecuadorian authorities, Mr

Mestanza made allegations of spraying relating to specific
months and even specific dates, and alleged particularly serious

harm to his business operations:

“In the fumigations of November 2000, I lost
30,000 fish as a direct effect of the chemical
compound used in the fumigations, all dead,

4 hectares of plantain, 2 of yucca and farmyard
animals. On the second occasio n of the sprayings,
conducted in early January 2002, in which spraying
planes flew for three consecutively days over the
pools, I was affected by the death of 60,000 fish,

10 hectares of maize and the partial death of
6 hectares of sugarcane, and the total loss of the
fruit of a citrus plantation. The third time, which
began in early September of this year, I had a huge
financial loss, as I lost 400 ducks and 80,000 fish,

the pigs were sick, and the humans fell ill with
itchiness, throat infections, diarrhe a and headaches.
The fourth time was Monday 7th and Thursday 10th
of October of this year, when the spraying planes
flew over my property again. There is clear

evidence of the death of woodlands, orito and
sugarcane;743at is practically liquidating my
project...”

3.448. As Colombia pointed out in the Counter -Memorial,

Mr Mestanza and seven members of his family were plaintiffs in
the Arias v. Dyncorp proceedings. 744 It emerged during the

taking of depositions in those proceedings that 5 members of the

743
744 EM, Vol. IV, Annex 237.
CCM, Vol. I, para. 1.37.December 2000 took place either 20 km to the west, in the
region of Salinas, or over 50 km to the west. Nor was there any

spraying in November 2001.

3.451. On this basis alone, Ecuador’s claim made in the

Memorial that the “impressive success of Mr. Mestanza’s farm

was brought to an end when the first fumigation planes arrived
746
in November 2000” is clearly without any foundation.

3.452. Similarly, the spray data shows clearly that there was no

“direct overspraying” of Puerto Mestanza in January 2002 (or
indeed at any time) . Although there was some spraying in the

general region of this part of the border in early 2002, it was at a

considerable distance from the border and a fortiori from the

Mestanza farm . As to the spraying within Colombia in the

region in September and October 2002, detailed analysis of
747
satellite imagery was carried out by Dr Evans, and Dr Hewitt

modeled the projected deposit ion as a result of drift from the
lines closest to the Mestanza farm. 748. Their conclusions

demonstrate that Mr Mestanza could not have suffered the harm

alleged by him.

3.453. Dr Evans concludes, on the basis of his analysis of the

satellite imagery from before, d uring and after the relevant

746 EM, Vol. I, para. 6.68.
747 CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Dec. 2011, paras. 3.13-3.38.
748 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 1 (10 Oct. 2002), 12 (7 Oct. 2002), 20
(8 Sep. 2002) and 62 (7 Jan. 2002). See also CR, Vol. II, AnnDr B.M.
Evans, Ph.D., Expert Report by Dr Barry M. Evans, Dec. 2011, para. 3.21.

354December 2000 took place either 20 km to the west, in the
region of Salinas, or over 50 km to the west. Nor was there any

spraying in November 2001.

3.451. On this basis alone, Ecuador’s claim made in the

Memorial that the “impressive success of Mr. Mestanza’s farm

was brought to an end when the first fumigation planes arrived
746
in November 2000” is clearly without any foundation.

3.452. Similarly, the spray data shows clearly that there was no

“direct overspraying” of Puerto Mestanza in January 2002 (or
indeed at any time) . Although there was some spraying in the

general region of this part of the border in early 2002, it was at a

considerable distance from the border and a fortiori from the

Mestanza farm . As to the spraying within Colombia in the

region in September and October 2002, detailed analysis of
747
satellite imagery was carried out by Dr Evans, and Dr Hewitt

modeled the projected deposit ion as a result of drift from the
lines closest to the Mestanza farm. 748. Their conclusions

demonstrate that Mr Mestanza could not have suffered the harm

alleged by him.

3.453. Dr Evans concludes, on the basis of his analysis of the

satellite imagery from before, d uring and after the relevant

746 EM, Vol. I, para. 6.68.
747 CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Dec. 2011, paras. 3.13-3.38.
748 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-
5, Table of Model Results, rows 1 (10 Oct. 2002), 12 (7 Oct. 2002), 20
(8 Sep. 2002) and 62 (7 Jan. 2002). See also CR, Vol. II, AnnDr B.M.
Evans, Ph.D., Expert Report by Dr Barry M. Evans, Dec. 2011, para. 3.21. • the two closest spray lines in October 2002, which

were sprayed on 7 and 10 October 2002,
respectively, at distances of 891m and 570m from

the nearest point on the Ecuadorian bank of the

river, resulted in projected deposition levels of, in

the first case, 1.15 g/ha and in the second, 2.71 g/ha.

3.455. As Colombia has already noted, the level of concern for
amphibians, t he most sensitive animal species according to

Ecuador, is 1,368 g/ha . The level of concern for various crops

ranges between 36 -1,958 g/ha. Even the excessively cautious

value of 4.1 g/hg suggested by Ecuador’s expert, Dr Weller, was
not exceeded by the closest spraying events . Of course, the

deposition levels calculated by Dr Hewitt are , in any case, for

the closest point to the spray event on the Ecuadorian river bank;
to the extent that Mr Mestanza’s farm was further away, the

level of deposition would have been even less.

3.456. The Mestanza claim, like those of all of its vaguer

counterparts, is straightforwardly false. Indeed it is fraudulent
and opportunistic. That this is so is eloquently demonstrated by

the views of a number of scientific expert s in their reports filed

in the Dyncorp proceedings in support of the motion by the
defendant requesting that the US trial c ourt summarily dismiss

the claims without proceeding to a full trial:

(a) As to the allegations of injury to health made by

Mr Mestanza and members of this family in the
Dyncorp proceedings, the report of Dr Smalligan,

356 • the two closest spray lines in October 2002, which

were sprayed on 7 and 10 October 2002,
respectively, at distances of 891m and 570m from

the nearest point on the Ecuadorian bank of the

river, resulted in projected deposition levels of, in

the first case, 1.15 g/ha and in the second, 2.71 g/ha.

3.455. As Colombia has already noted, the level of concern for
amphibians, t he most sensitive animal species according to

Ecuador, is 1,368 g/ha . The level of concern for various crops

ranges between 36 -1,958 g/ha. Even the excessively cautious

value of 4.1 g/hg suggested by Ecuador’s expert, Dr Weller, was
not exceeded by the closest spraying events . Of course, the

deposition levels calculated by Dr Hewitt are , in any case, for

the closest point to the spray event on the Ecuadorian river bank;
to the extent that Mr Mestanza’s farm was further away, the

level of deposition would have been even less.

3.456. The Mestanza claim, like those of all of its vaguer

counterparts, is straightforwardly false. Indeed it is fraudulent
and opportunistic. That this is so is eloquently demonstrated by

the views of a number of scientific expert s in their reports filed

in the Dyncorp proceedings in support of the motion by the
defendant requesting that the US trial c ourt summarily dismiss

the claims without proceeding to a full trial:

(a) As to the allegations of injury to health made by

Mr Mestanza and members of this family in the
Dyncorp proceedings, the report of Dr Smalligan, injury are inconsisten750nd have
changed over time.”

(b) In addition, Dr Smalligan records that , some

10 months after he had been seen by his doctor

Mr Mestanza persuaded h im to sign a

“certification”, prepared by Mr Mestanza himself,

which purported to attribute various symptoms to
the alleged spraying. 751

(c) Finally, and in any case, Dr Smalligan opines that

all of the various symptoms alleged by

Mr Mestanza, (including bacterial or fungal skin

infections, chronic dermatitis, chronic gastritis,

etc) to have been caused by the spraying,

“are commonly seen in Northern
Ecuador as a result of endemic health

problems that have nothing to do
with any alleged toxic exposure .
Indeed, many of his health
complaints could not occur as a
752
result of a chemical exposure.”

(d) As noted above, Professor Giesy, an expert in

toxicology, is supremely dismissive of the claims

made by M r Mestanza as to the deaths of both
fish and animals, expressing the view that there is

“no scientific basis” for the claims of

750 CR, Vol. II, Annex 13: Expert Report of Dr R.D. Smalligan, M.D.,
M.P.H., prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.),
Jan. 2011, p. 23.
751 Ibid., p.25.
752 Ibid.

358 injury are inconsisten750nd have
changed over time.”

(b) In addition, Dr Smalligan records that , some

10 months after he had been seen by his doctor

Mr Mestanza persuaded h im to sign a

“certification”, prepared by Mr Mestanza himself,

which purported to attribute various symptoms to
the alleged spraying. 751

(c) Finally, and in any case, Dr Smalligan opines that

all of the various symptoms alleged by

Mr Mestanza, (including bacterial or fungal skin

infections, chronic dermatitis, chronic gastritis,

etc) to have been caused by the spraying,

“are commonly seen in Northern
Ecuador as a result of endemic health

problems that have nothing to do
with any alleged toxic exposure .
Indeed, many of his health
complaints could not occur as a
752
result of a chemical exposure.”

(d) As noted above, Professor Giesy, an expert in

toxicology, is supremely dismissive of the claims

made by M r Mestanza as to the deaths of both
fish and animals, expressing the view that there is

“no scientific basis” for the claims of

750 CR, Vol. II, Annex 13: Expert Report of Dr R.D. Smalligan, M.D.,
M.P.H., prepared for the Defendants in Arias/Quinteros v. Dyncorp (D.D.C.),
Jan. 2011, p. 23.
751 Ibid., p.25.
752 Ibid. application or by drift from an

application in neighboring Colombia,
it would be impossible for the effects
of glyphosate to be observed only in
isolated plants (or portions of plants).

Rather, wide swaths of the Mestanza
property would show the effects of
the application, and so it is quite
telling that this obviously is not the
case.”755

Dr DiTomaso then goes on to discuss the

numerous additional factors apparent from the
video which demonstrate that the various

damages alleged are inconsistent with exposure

to the spray mixture . 756 The entire discussion

invites careful study, as the variety of damage to

plants (including, e.g. black spotting) attributed
by Mr Mestanza to exposure to the plants closely

parallels those of various of the witnesses in

these proceedings. However, as Dr DiTomaso

explains, none of those symptoms are consistent
757
with exposure to glyphosate.

F. Conclusion

3.457. In summary, Ecuador has not discharged its burden of

proof in showing that the spray mixture has been deposited

within its territory, that any of the damage alleged has in fact

755 CR, Vol. II, Annex 9: Expert Report of Dr J.M. DiTomaso, Ph.D.
prepared for the Dyncorp Defendants in Arias/Quinteros v. Dyncorp
(D.D.C.), Jan. 2011, pp. 30-31.
756
757 Ibid., pp. 31-33.
Ibid., p. 31.

360 application or by drift from an

application in neighboring Colombia,
it would be impossible for the effects
of glyphosate to be observed only in
isolated plants (or portions of plants).

Rather, wide swaths of the Mestanza
property would show the effects of
the application, and so it is quite
telling that this obviously is not the
case.”755

Dr DiTomaso then goes on to discuss the

numerous additional factors apparent from the
video which demonstrate that the various

damages alleged are inconsistent with exposure

to the spray mixture . 756 The entire discussion

invites careful study, as the variety of damage to

plants (including, e.g. black spotting) attributed
by Mr Mestanza to exposure to the plants closely

parallels those of various of the witnesses in

these proceedings. However, as Dr DiTomaso

explains, none of those symptoms are consistent
757
with exposure to glyphosate.

F. Conclusion

3.457. In summary, Ecuador has not discharged its burden of

proof in showing that the spray mixture has been deposited

within its territory, that any of the damage alleged has in fact

755 CR, Vol. II, Annex 9: Expert Report of Dr J.M. DiTomaso, Ph.D.
prepared for the Dyncorp Defendants in Arias/Quinteros v. Dyncorp
(D.D.C.), Jan. 2011, pp. 30-31.
756
757 Ibid., pp. 31-33.
Ibid., p. 31.3.462. However, both the witness statements and the secondary

material are not worthy of any credibility. As C olombia has
explained, there are serious grounds for concern as to the way in

which the witness statements placed before the Court in these

proceedings were obtained and prepared. Further, the allegations

of the witnesses (and individuals whose claims are reported in
the secondary material) as to the place and timing of spraying,

are conclusively shown to be false by the spray data in a large

number of cases. If it is not credible that there was any spraying
anywhere near the places, or at the times at which the various

individuals allege that they were oversprayed, observed spraying

or felt its effects, their other claims as to the damage they
allegedly suffered as a result are likewise not deserving of

belief.

3.463. As the episode with Mr Mestanza clearly demon strates,

there is a tendency for the alleged witnesses and other
individuals to blame the spraying within Colombia for all of

their woes. They appear to be prepared to advance that position

fraudulently, with a view to personal gain, as seem s to be the
case with Mr Mestanza.

3.464. Moreover, the scientific evidence shows both that there

are a variety of other causes for each and every one of the

symptoms allegedly caused by the spraying, and that the
spraying itself could not have caused the effects alleged.

3.465. As a consequence, as a whole, Ecuador’s case on harm

fails.

3623.462. However, both the witness statements and the secondary

material are not worthy of any credibility. As C olombia has
explained, there are serious grounds for concern as to the way in

which the witness statements placed before the Court in these

proceedings were obtained and prepared. Further, the allegations

of the witnesses (and individuals whose claims are reported in
the secondary material) as to the place and timing of spraying,

are conclusively shown to be false by the spray data in a large

number of cases. If it is not credible that there was any spraying
anywhere near the places, or at the times at which the various

individuals allege that they were oversprayed, observed spraying

or felt its effects, their other claims as to the damage they
allegedly suffered as a result are likewise not deserving of

belief.

3.463. As the episode with Mr Mestanza clearly demon strates,

there is a tendency for the alleged witnesses and other
individuals to blame the spraying within Colombia for all of

their woes. They appear to be prepared to advance that position

fraudulently, with a view to personal gain, as seem s to be the
case with Mr Mestanza.

3.464. Moreover, the scientific evidence shows both that there

are a variety of other causes for each and every one of the

symptoms allegedly caused by the spraying, and that the
spraying itself could not have caused the effects alleged.

3.465. As a consequence, as a whole, Ecuador’s case on harm

fails. B. EIA and the Environmental Management Plan

4.2. Contrary to Ecuador’s assertions in its Reply, this

Chapter will show that the Program for the Eradication of Illi cit

Crops by Aerial Spraying with Glyphosate Herbicide, PECIG,

implemented by Colombia for nearly two decades , has at all
times been developed in strict compliance with its domestic

regulations and with due diligence, including environmental

impact assessments and other scientific studies that allowed it to

establish that the PECIG did not pose any significant risk for

human health and the environment.

4.3. The aerial spraying program began under the purview of

Law 30 of 1986 which entrusted the National Narcot ics Council

with the duty to eradicate illicit crops through the most

appropriate means, following the favourable opinions of the
agencies responsible for the health of the country’s population

and the preservation and balance of its ecosystems.

4.4. The Council announced the eradication strategy in 1992,

including the spraying of illicit crops, following consultations

with environmental, agricultural and health agencies, in full
conformity with the legal provisions in force at the time, as

explained further in this Chapter.

4.5. When Law 99 of 1993 creating the Ministry for the

Environment and the National Environmental System was
enacted, the aerial spraying of illicit crops throughout the

national territory was already in place. This law was

supplemented by Decre e 1753 of 1994 that authorized the

364 B. EIA and the Environmental Management Plan

4.2. Contrary to Ecuador’s assertions in its Reply, this

Chapter will show that the Program for the Eradication of Illi cit

Crops by Aerial Spraying with Glyphosate Herbicide, PECIG,

implemented by Colombia for nearly two decades , has at all
times been developed in strict compliance with its domestic

regulations and with due diligence, including environmental

impact assessments and other scientific studies that allowed it to

establish that the PECIG did not pose any significant risk for

human health and the environment.

4.3. The aerial spraying program began under the purview of

Law 30 of 1986 which entrusted the National Narcot ics Council

with the duty to eradicate illicit crops through the most

appropriate means, following the favourable opinions of the
agencies responsible for the health of the country’s population

and the preservation and balance of its ecosystems.

4.4. The Council announced the eradication strategy in 1992,

including the spraying of illicit crops, following consultations

with environmental, agricultural and health agencies, in full
conformity with the legal provisions in force at the time, as

explained further in this Chapter.

4.5. When Law 99 of 1993 creating the Ministry for the

Environment and the National Environmental System was
enacted, the aerial spraying of illicit crops throughout the

national territory was already in place. This law was

supplemented by Decre e 1753 of 1994 that authorized theEnvironmental Management Plan, the Program was under

continuous monitoring by several government agencies and was

subject to external audit, as will beexplained. 759

(1) T HE ENVIRONMENTAL M ANAGEMENT PLAN FOR PECIG

4.9. Ecuador claims t hat Colombia failed to conduct an

Environmental Impact Assessment (EIA) either before or after

the start of the PECIG. 760 But when the aerial spraying program

started in the provinces adjacent to the Ecuador border in 2000,

studies and monitoring activities had been performed, including

environmental impact studies, show ing the Program’s efficacy

in the eradication of illicit crops while ensuring protection of the

environment. 761 The process by which this had occurred may be

briefly recalled.

4.10. Law 30 of 1986, by which the National Statute on

Narcotics was adopted, created the National Narcotics Council

759 CR, Vol. IV, Annex 40: Note 2400- 2.139140 from the Ministry for
the Environment and Sustainable D evelopment, to the Ministry of Foreign
Affairs of Colombia, enclosing the List of Orders issued by the Ministry for
the Environment regarding control and follow up of the Environmental

Management Plan of the Program for the Eradication of Illicit Crops by
Aerial Spraying with Glyphosate (PECIG), 3 Nov. 2011; Vol. IV, Annex 41:
List of External Environmental Audits by the National Narcotics Directorate
(DNE); Vol. V, Annex 58: Embassy of the United States of America, List of
Aerial Eradication Verification Mission Reports since 1997.
760 ER, paras. 4.10-4.47
761 CCM, Vol. II, Annexes 35 and 36; Vol.III, Annex 123; CR, Vol.
III, Annex 20: National Narcotics Directorate (DNE), Environmental
Management Plan (EMP) Eradication of Illicit Crops, Chapter VII,

Identification and Assessment of Environmental Impa30 Oct. 1998; CR,
Vol. III, Annex 21: National Narcotics Directorate (DNE), Environmental
Impact of Illicit Coca Crops and their Eradication by Aerial Spraying with
Glyphosate in the Bio- geographical Region of the Amazon and Orinoco
Basins, Colombia, Dec. 1994.

366Environmental Management Plan, the Program was under

continuous monitoring by several government agencies and was

subject to external audit, as will beexplained. 759

(1) T HE ENVIRONMENTAL M ANAGEMENT PLAN FOR PECIG

4.9. Ecuador claims t hat Colombia failed to conduct an

Environmental Impact Assessment (EIA) either before or after

the start of the PECIG. 760 But when the aerial spraying program

started in the provinces adjacent to the Ecuador border in 2000,

studies and monitoring activities had been performed, including

environmental impact studies, show ing the Program’s efficacy

in the eradication of illicit crops while ensuring protection of the

environment. 761 The process by which this had occurred may be

briefly recalled.

4.10. Law 30 of 1986, by which the National Statute on

Narcotics was adopted, created the National Narcotics Council

759 CR, Vol. IV, Annex 40: Note 2400- 2.139140 from the Ministry for
the Environment and Sustainable D evelopment, to the Ministry of Foreign
Affairs of Colombia, enclosing the List of Orders issued by the Ministry for
the Environment regarding control and follow up of the Environmental

Management Plan of the Program for the Eradication of Illicit Crops by
Aerial Spraying with Glyphosate (PECIG), 3 Nov. 2011; Vol. IV, Annex 41:
List of External Environmental Audits by the National Narcotics Directorate
(DNE); Vol. V, Annex 58: Embassy of the United States of America, List of
Aerial Eradication Verification Mission Reports since 1997.
760 ER, paras. 4.10-4.47
761 CCM, Vol. II, Annexes 35 and 36; Vol.III, Annex 123; CR, Vol.
III, Annex 20: National Narcotics Directorate (DNE), Environmental
Management Plan (EMP) Eradication of Illicit Crops, Chapter VII,

Identification and Assessment of Environmental Impa30 Oct. 1998; CR,
Vol. III, Annex 21: National Narcotics Directorate (DNE), Environmental
Impact of Illicit Coca Crops and their Eradication by Aerial Spraying with
Glyphosate in the Bio- geographical Region of the Amazon and Orinoco
Basins, Colombia, Dec. 1994.4.13. Prior to authorizing the Program’s implementation in the
765
whole country, the CNE requested the Health Ministry and
INDERENA to render their opinion. Those opinions were duly

obtained in 1994, as Ecuador’s own expert, Ms Rojas,

acknowledges. 766

4.14. On 22 December 1993, Law 99, the “Law on the

Environment” was enacted, whereby the Ministry for the

Environment was created, and several aspects relating to the

protection of the environment were regulated.

(a) The transitional regime

4.15. As recalled in Colombia’s Counter -Memorial, the Law

on the Environment established two different regimes. 767 One

was for the regulation of activities that were underway prior to

its entry into force; another for new projects, works or activities

to be undertaken after 22 December 1993. Aerial spraying was

an activity that was being conducted prior to the enactment of
that Law.

4.16. The Law on the Environment set the requirement for an

environmental license only for new projects, works or activities

that “may cause serious deterioration of natural renewable

resources or the environment[,] or introduce considerable or

765 CCM, Vol. II, Annex 37.
766 C. Rojas, “The Aerial Spray Program and Violations of Colombia’s
Domestic Laws Regarding The Environment And The Rights Of Indigenous
Peoples (Jan. 2011) ” (hereafter referred to as Rojas Report), ER, Vol. II,
Annex 8, para. 69.
767 CCM, paras. 4.10, 4.11.

3684.13. Prior to authorizing the Program’s implementation in the
765
whole country, the CNE requested the Health Ministry and
INDERENA to render their opinion. Those opinions were duly

obtained in 1994, as Ecuador’s own expert, Ms Rojas,

acknowledges. 766

4.14. On 22 December 1993, Law 99, the “Law on the

Environment” was enacted, whereby the Ministry for the

Environment was created, and several aspects relating to the

protection of the environment were regulated.

(a) The transitional regime

4.15. As recalled in Colombia’s Counter -Memorial, the Law

on the Environment established two different regimes. 767 One

was for the regulation of activities that were underway prior to

its entry into force; another for new projects, works or activities

to be undertaken after 22 December 1993. Aerial spraying was

an activity that was being conducted prior to the enactment of
that Law.

4.16. The Law on the Environment set the requirement for an

environmental license only for new projects, works or activities

that “may cause serious deterioration of natural renewable

resources or the environment[,] or introduce considerable or

765 CCM, Vol. II, Annex 37.
766 C. Rojas, “The Aerial Spray Program and Violations of Colombia’s
Domestic Laws Regarding The Environment And The Rights Of Indigenous
Peoples (Jan. 2011) ” (hereafter referred to as Rojas Report), ER, Vol. II,
Annex 8, para. 69.
767 CCM, paras. 4.10, 4.11. exploration projects and use of virtually
contaminating alternative energy.

4. Construction or expansion of deep-draft sea ports.

5. Construction of international airports.
6. Undertaking of public Works for national road,

fluvial or rail networks.
7. Construction of irrigation districts for over

20,000 hectares
8. Production and importation of pesticides, and

those substances, materials or products subject to
control pursuant to international treaties,
agreements, and protocols.

9. Projects that affect the National Natural Parks
System.

10. Projects undertaken by the Regional
Autonomous Corporations referred to in numeral

19, article 31of this law.
11. Transfusing of one basin into another of water

streams that exceed two (2) m/s during low flow
seasons.

12. Bringing into the country parent species for
reproduction of fauna and wild flora foreign species
that may affect the stability of ecos ystems or
wildlife.

13. Generation of nuclear energy.”

4.18. The activity of aerial herbicide spraying of illicit crops is

not listed either expressly or implicitly in Article 52, i.e., that

activity was not required to have an environmental license either

before Law 99 was enacted in 1993, after its issuance, or
770
following subsequent regulations implementing that Law. In

fact, as can be seen from the list, with regard to pesticides, the

770 CR, Vol. II, Annex 7: Zapata Report, paras. 24 and 26-33.

370 exploration projects and use of virtually
contaminating alternative energy.

4. Construction or expansion of deep-draft sea ports.

5. Construction of international airports.
6. Undertaking of public Works for national road,

fluvial or rail networks.
7. Construction of irrigation districts for over

20,000 hectares
8. Production and importation of pesticides, and

those substances, materials or products subject to
control pursuant to international treaties,
agreements, and protocols.

9. Projects that affect the National Natural Parks
System.

10. Projects undertaken by the Regional
Autonomous Corporations referred to in numeral

19, article 31of this law.
11. Transfusing of one basin into another of water

streams that exceed two (2) m/s during low flow
seasons.

12. Bringing into the country parent species for
reproduction of fauna and wild flora foreign species
that may affect the stability of ecos ystems or
wildlife.

13. Generation of nuclear energy.”

4.18. The activity of aerial herbicide spraying of illicit crops is

not listed either expressly or implicitly in Article 52, i.e., that

activity was not required to have an environmental license either

before Law 99 was enacted in 1993, after its issuance, or
770
following subsequent regulations implementing that Law. In

fact, as can be seen from the list, with regard to pesticides, the

770 CR, Vol. II, Annex 7: Zapata Report, paras. 24 and 26-33.4.22. The aerial spraying program had been underway prior to

1993, with the fulfilment of the requirements set out in Law 30

of 1986, 774that is, it had been approved in conformity with the

then existing legislation. Therefore, the PECIG continued under

the transitional regime established in conformity with Law 99 of
775
1993 and Decree 1753 of 1994.

4.23. In a response provided by the then- Minister of the

Environment, Mr Juan Mayr Maldonado, to the Secretary

General of the Colombian Senate, dated the 10 August 2001, the

Ministry confirmed that “ the aerial aspersion with glyphosate

had the favourable opinion of the environmental authorities of

the time and was in accordance with environmental regulations,

duly supported in technical studies provided by the DNE and as

well as those requested by the INDERENA” (prior
776
environmental authority to the Ministry of the Environment).

4.24. Likewise, in a response provided by Minister Mayr to

the Office to the Ombudsman in a public hearing held on

24 August 2001, the Ministry confirmed that:

774
CCM, para 4.9. See also: CCM, Vol. II, A nnex 37, Resolution 001
of 1994 : “In compliance with Article 91(g) of Law 30 of 1986, approving
concept was requested and obtained from the Health Ministry and the
National Institute for Renewable Natural Resources and the Environment –
INDERENA- as state d in the letters dated 11 and 8 October 1993,
respectively, signed by the Health Ministry and the General Director of that
Institute, the authorities commissioned to safeguard public health and

775rantee preservation and stability of the environment.”
CCM, Vol. II, Annex 38 ; CR, Vol. III, Annex 23: Colombian Law
776of 1993, Article 117.
CR, Vol . III, Annex 24: Note from the Minister for the
Environment, Mr. Juan Mayr Maldonado, to the Secretary General of the
Colombian Senate, 10 Aug. 2001.

3724.22. The aerial spraying program had been underway prior to

1993, with the fulfilment of the requirements set out in Law 30

of 1986, 774that is, it had been approved in conformity with the

then existing legislation. Therefore, the PECIG continued under

the transitional regime established in conformity with Law 99 of
775
1993 and Decree 1753 of 1994.

4.23. In a response provided by the then- Minister of the

Environment, Mr Juan Mayr Maldonado, to the Secretary

General of the Colombian Senate, dated the 10 August 2001, the

Ministry confirmed that “ the aerial aspersion with glyphosate

had the favourable opinion of the environmental authorities of

the time and was in accordance with environmental regulations,

duly supported in technical studies provided by the DNE and as

well as those requested by the INDERENA” (prior
776
environmental authority to the Ministry of the Environment).

4.24. Likewise, in a response provided by Minister Mayr to

the Office to the Ombudsman in a public hearing held on

24 August 2001, the Ministry confirmed that:

774
CCM, para 4.9. See also: CCM, Vol. II, A nnex 37, Resolution 001
of 1994 : “In compliance with Article 91(g) of Law 30 of 1986, approving
concept was requested and obtained from the Health Ministry and the
National Institute for Renewable Natural Resources and the Environment –
INDERENA- as state d in the letters dated 11 and 8 October 1993,
respectively, signed by the Health Ministry and the General Director of that
Institute, the authorities commissioned to safeguard public health and

775rantee preservation and stability of the environment.”
CCM, Vol. II, Annex 38 ; CR, Vol. III, Annex 23: Colombian Law
776of 1993, Article 117.
CR, Vol . III, Annex 24: Note from the Minister for the
Environment, Mr. Juan Mayr Maldonado, to the Secretary General of the
Colombian Senate, 10 Aug. 2001. decree, as shown by the opinions of the health and
environmental authorities referred- to above, it is
concluded that the transitional regime provided for
in that same law and developed in its regulatory

decree, according to which an environmental license
is not required is to be applied to said activity, and
that it can continue to be carried out, without
prejudice to the fact that the environmental
authorities can intervene when they deem necessary

to enforce compliance with the laws that regulate
the environment in order to maintain it healthy,
recover it or restore it as the case may be.

The Minister for the Environment so considered it,
in letter of 20 December 1994, addressed to the
Minister of Justice and Law, in page 119 of the case

file, where she states that: ‘It is necessary t o point
out that the opinion rendered by Inderena maintains
its legal validity, since it was the relevant agency for
environmental matters prior to the entry into force

of Law 99 of 1993 and it applied the provisions in
force at that time. It should be added, that the
spraying is in pursuance of a policy of control of the
public order, therefore, there is no discontinuance,

and thus the situation of the spray780s fits perfectly
within the transitional regime.’”

The same conclusion is reached in the annex ed expert report on
781
Colombian law (the “Zapata Report”).

4.27. It is thus clear that the PECIG fell under the transitional

regime provided for in the Law on the Environment and

regulatory Decree 1753 of 1994, and that it was discretionary on
the part of the Environment Ministry to require an EMP.

780 CR, Vol. III, Annex 27: Council of State of Colombia, Chamber of
Contentious Administrative Affairs, Order of 15 Aug. 1995, p. 15 (excerpts).
781 CR, Vol. II, Annex 7: Zapata Report, paras. 30-38.

374 decree, as shown by the opinions of the health and
environmental authorities referred- to above, it is
concluded that the transitional regime provided for
in that same law and developed in its regulatory

decree, according to which an environmental license
is not required is to be applied to said activity, and
that it can continue to be carried out, without
prejudice to the fact that the environmental
authorities can intervene when they deem necessary

to enforce compliance with the laws that regulate
the environment in order to maintain it healthy,
recover it or restore it as the case may be.

The Minister for the Environment so considered it,
in letter of 20 December 1994, addressed to the
Minister of Justice and Law, in page 119 of the case

file, where she states that: ‘It is necessary t o point
out that the opinion rendered by Inderena maintains
its legal validity, since it was the relevant agency for
environmental matters prior to the entry into force

of Law 99 of 1993 and it applied the provisions in
force at that time. It should be added, that the
spraying is in pursuance of a policy of control of the
public order, therefore, there is no discontinuance,

and thus the situation of the spray780s fits perfectly
within the transitional regime.’”

The same conclusion is reached in the annex ed expert report on
781
Colombian law (the “Zapata Report”).

4.27. It is thus clear that the PECIG fell under the transitional

regime provided for in the Law on the Environment and

regulatory Decree 1753 of 1994, and that it was discretionary on
the part of the Environment Ministry to require an EMP.

780 CR, Vol. III, Annex 27: Council of State of Colombia, Chamber of
Contentious Administrative Affairs, Order of 15 Aug. 1995, p. 15 (excerpts).
781 CR, Vol. II, Annex 7: Zapata Report, paras. 30-38.4.30. The following chronology explains the main

administrative exchanges that took place between 1996 and

2003 (which were described in a partial and subjective fashion

in Ecuador’s Reply):

• On 30 July 1998 DNE submitted the EMP to the
784
Ministry for the Environment; this was

supplemented on 30 October 1998 by a further

Chapter VII entitled “Identification and
785
Assessment of Environmental Impacts”. This

document was the in-depth environmental impact

study required under the transitional regime.

• In particular, section 1.1. of Chapter VII, entitled:

“Impact Analysis”, states as follows: “[t]he

currently existing environmental conditions in the

zones representative of the natural regions

considered in the study have been taken into

account for the assessment of impacts...”. 786The

EMP goes on to explain the methodology

employed and to rate impacts and the likelihood

784
CR, Vol. III, Annex 29: Note 11430 from the Ministry of Justice and
Law, Na tional Narcotics Directorate (DNE) to the Ministry for the
Environment enclosing the Environmental Management Plan for the
Application of Glyphosate in the Eradication of Illicit Crops, 30 July 1998.
785 CR, Vol. III, Annex 30: Note 16341 from the Ministry of Justice and
Law, National Narcotics Directorate (DNE) to the Ministry for the
Environment enclosing Chapter VII of the Environmental Management Plan
for the Application of Glyphosate in the Eradication of Illicit Crops , 30 Oct.

1998; Vol. III, Annex 20: National Narcotics Directorate (DNE),
Environmental Management Plan (EMP) Eradication of Illicit Crops,
Chapter VII, Identification and Assessment of Environmental Impact , 30 Oct.
7868.
CR, Vol. III, Annex 20, p. 1.

3764.30. The following chronology explains the main

administrative exchanges that took place between 1996 and

2003 (which were described in a partial and subjective fashion

in Ecuador’s Reply):

• On 30 July 1998 DNE submitted the EMP to the
784
Ministry for the Environment; this was

supplemented on 30 October 1998 by a further

Chapter VII entitled “Identification and
785
Assessment of Environmental Impacts”. This

document was the in-depth environmental impact

study required under the transitional regime.

• In particular, section 1.1. of Chapter VII, entitled:

“Impact Analysis”, states as follows: “[t]he

currently existing environmental conditions in the

zones representative of the natural regions

considered in the study have been taken into

account for the assessment of impacts...”. 786The

EMP goes on to explain the methodology

employed and to rate impacts and the likelihood

784
CR, Vol. III, Annex 29: Note 11430 from the Ministry of Justice and
Law, Na tional Narcotics Directorate (DNE) to the Ministry for the
Environment enclosing the Environmental Management Plan for the
Application of Glyphosate in the Eradication of Illicit Crops, 30 July 1998.
785 CR, Vol. III, Annex 30: Note 16341 from the Ministry of Justice and
Law, National Narcotics Directorate (DNE) to the Ministry for the
Environment enclosing Chapter VII of the Environmental Management Plan
for the Application of Glyphosate in the Eradication of Illicit Crops , 30 Oct.

1998; Vol. III, Annex 20: National Narcotics Directorate (DNE),
Environmental Management Plan (EMP) Eradication of Illicit Crops,
Chapter VII, Identification and Assessment of Environmental Impact , 30 Oct.
7868.
CR, Vol. III, Annex 20, p. 1. Environment; this was further supplemented on

17 October 2000.

• In May 2001 the Ministry for the Environment

requested certain specifications and preventive

measures. 791

• On 8 August 2001 DNE submitted a first advance
792
report in response to the Ministry’s request. On

6 November 2001 it submitted the final version
793
of the EMP.

• The EMP was formally adopted by the Ministry

for the Environment by Resolution No. 1065 of

26 November 2001 794 following a process which

began in 1996 with the issuance of the terms of

reference for an environmental study to be

conducted by DNE. 795 The EMP was

subsequently amended by Resolution No. 1054 of
796
30 September 2003. The Ministry for the

Environment accepted in its entirety the final

version of the EMP presented by DNE.

791 EM, Vol. II, Annex 14
792 CR, Vol. III, Annex 32: Note N° 24171 from the National Narcotics

793ectorate (DNE) to the Ministry for the Environment, 8 Aug. 2001.
CR, Vol. III, Annex 33: Note N° 32280 from the National Narcotics
Directorate (DNE) to the Ministry for the Env ironment enclosing the
Environmental Management Plan (EMP) of the Program for the Eradication
794Illicit Crops by Aerial Spraying with Glyphosate (PECIG), 6 Nov. 2001.
EM, Vol. II, Annex 15; CCM, Vol. II, Annex 45.
795 For a review of the background of t he EMP, see CCM, paras. 4.8 -
4.14.
796 CCM, Vol. II, Annex 50.

378 Environment; this was further supplemented on

17 October 2000.

• In May 2001 the Ministry for the Environment

requested certain specifications and preventive

measures. 791

• On 8 August 2001 DNE submitted a first advance
792
report in response to the Ministry’s request. On

6 November 2001 it submitted the final version
793
of the EMP.

• The EMP was formally adopted by the Ministry

for the Environment by Resolution No. 1065 of

26 November 2001 794 following a process which

began in 1996 with the issuance of the terms of

reference for an environmental study to be

conducted by DNE. 795 The EMP was

subsequently amended by Resolution No. 1054 of
796
30 September 2003. The Ministry for the

Environment accepted in its entirety the final

version of the EMP presented by DNE.

791 EM, Vol. II, Annex 14
792 CR, Vol. III, Annex 32: Note N° 24171 from the National Narcotics

793ectorate (DNE) to the Ministry for the Environment, 8 Aug. 2001.
CR, Vol. III, Annex 33: Note N° 32280 from the National Narcotics
Directorate (DNE) to the Ministry for the Env ironment enclosing the
Environmental Management Plan (EMP) of the Program for the Eradication
794Illicit Crops by Aerial Spraying with Glyphosate (PECIG), 6 Nov. 2001.
EM, Vol. II, Annex 15; CCM, Vol. II, Annex 45.
795 For a review of the background of t he EMP, see CCM, paras. 4.8 -
4.14.
796 CCM, Vol. II, Annex 50. 4.4.2 Impact on agricultural production
and livestock

4.4.3 Impact on human settlements and
migration

4.4.4 Cultural impact

4.4.5 Other impacts
4.5 General summary” 798

4.31. The EMP is a thorough study, consistent with the

structure of both an EIA and an EMP. Under Colombian law –

the applicable law – it was equivalent to an EIA, as the

following extract shows:

“This Environmental Management Plan (EMP) has
been prepared according to the regulations provided
for in Decree 1753, 1994 and the requirements
included in Resolution 0341, 2001 issued by the

Ministry of the Environment to the National
Narcotics Directorate (DNE).
The Plan includes five chapters and an Executive

Summary:
- Chapter 1 comprises an introduction to the EMP
with a general description of the objectives, sites of

the illicit crops, justification for the Program for the
Eradication of Illicit Crops by Aerial Spraying with
Glyphosate – PECIG –, legal framework,
background and institutional structure.

- Chapter 2 includes a description of the Program,
its stages of development, the characterization of
glyphosate as herbicide, application method,
equipment and materials used and the institutional

and operational organization to execute same.
798
CR, Vol. III, Annex 33: Note N° 32280 from the National Narcotics
Directorate (DNE) to the Ministry for the Environment enclosing the
Environmental Management Plan (EMP) of the Program for the Eradication
of Illicit Crops by Aerial Spraying with Glyphosate (PECIG), 6 Nov. 2001,
Chapter 4.

380 4.4.2 Impact on agricultural production
and livestock

4.4.3 Impact on human settlements and
migration

4.4.4 Cultural impact

4.4.5 Other impacts
4.5 General summary” 798

4.31. The EMP is a thorough study, consistent with the

structure of both an EIA and an EMP. Under Colombian law –

the applicable law – it was equivalent to an EIA, as the

following extract shows:

“This Environmental Management Plan (EMP) has
been prepared according to the regulations provided
for in Decree 1753, 1994 and the requirements
included in Resolution 0341, 2001 issued by the

Ministry of the Environment to the National
Narcotics Directorate (DNE).
The Plan includes five chapters and an Executive

Summary:
- Chapter 1 comprises an introduction to the EMP
with a general description of the objectives, sites of

the illicit crops, justification for the Program for the
Eradication of Illicit Crops by Aerial Spraying with
Glyphosate – PECIG –, legal framework,
background and institutional structure.

- Chapter 2 includes a description of the Program,
its stages of development, the characterization of
glyphosate as herbicide, application method,
equipment and materials used and the institutional

and operational organization to execute same.
798
CR, Vol. III, Annex 33: Note N° 32280 from the National Narcotics
Directorate (DNE) to the Ministry for the Environment enclosing the
Environmental Management Plan (EMP) of the Program for the Eradication
of Illicit Crops by Aerial Spraying with Glyphosate (PECIG), 6 Nov. 2001,
Chapter 4. and soc ioeconomic conditions to be taken into
account during the spraying process.” 799

4.32. Thus, as described above, Chapters 3 and 4 of the EMP

contain the constituent elements of an EIA and only Chapter 5

constitutes the Environmental Management Plan as such – i.e., a

set of preventive, corrective, mitigation and compensation

measures of the impacts generated. 800

4.33. Ecuador interprets the process of implementation of the

EMP as evidence of a breach by Colombia of its own laws and

regulations, 801but it is no such thing. That the approval process

for the EMP took some years, from 1998 to 2001, is not in any

way a breach of Colombian law. On the contrary, these internal

exchanges show that there was an effective process of

monitoring and review of the Program by the competent

agencies of the Colombian Government, a process that brought

the EMP up to date with changing environmental regulations,

contributed to improve the Program and facilitated its

implementation.

4.34. The EMP “is a dynamic instrument which can be

adjusted in line with the individual features of the activity and

environmental conditions in the area where the project is being

799
CR, Vol. III, Annex 33: Note N° 32280 from the National Narcotics
Directorate (DNE) to the Ministry for the Environmen t enclosing the
Environmental Management Plan (EMP) of the Program for the Eradication
of Illicit Crops by Aerial Spraying with Glyphosate (PECIG), 6 Nov. 2001, p.
4. (Emphasis added)
800 Ibid., Chapters 3 to 5.
801 ER, paras. 4.24-4.35.

382 and soc ioeconomic conditions to be taken into
account during the spraying process.” 799

4.32. Thus, as described above, Chapters 3 and 4 of the EMP

contain the constituent elements of an EIA and only Chapter 5

constitutes the Environmental Management Plan as such – i.e., a

set of preventive, corrective, mitigation and compensation

measures of the impacts generated. 800

4.33. Ecuador interprets the process of implementation of the

EMP as evidence of a breach by Colombia of its own laws and

regulations, 801but it is no such thing. That the approval process

for the EMP took some years, from 1998 to 2001, is not in any

way a breach of Colombian law. On the contrary, these internal

exchanges show that there was an effective process of

monitoring and review of the Program by the competent

agencies of the Colombian Government, a process that brought

the EMP up to date with changing environmental regulations,

contributed to improve the Program and facilitated its

implementation.

4.34. The EMP “is a dynamic instrument which can be

adjusted in line with the individual features of the activity and

environmental conditions in the area where the project is being

799
CR, Vol. III, Annex 33: Note N° 32280 from the National Narcotics
Directorate (DNE) to the Ministry for the Environmen t enclosing the
Environmental Management Plan (EMP) of the Program for the Eradication
of Illicit Crops by Aerial Spraying with Glyphosate (PECIG), 6 Nov. 2001, p.
4. (Emphasis added)
800 Ibid., Chapters 3 to 5.
801 ER, paras. 4.24-4.35.program on the basis of an alleged transgression of

environmental rights and obligations.

4.37. After a careful review of the documentary evidence, the

Council of State concluded that the grounds for the claim were
not valid. In its view, there was no need to suspend or halt the

aerial sprayings for the following reasons:

“It cannot be accurately inferred from the evidence

outlined that Glyphosate causes irreversible damage
to the environment when it is used for eradicating
illicit crops; on the other hand, a number of facts
lead to the conclusion that sprayed areas regenerate
in a relatively short period of time and that many
hectares of forest are destroyed when trees are felled

by growers of illicit crops. Clearly, the guidelines
stated by the environmental authorities should be
followed when illicit crops are being sprayed, and
not even the slightest deviation from these should be
permitted, which means that it is therefore necessary

for permanent controls to be undertaken, with
continuous evaluations, of any effects which might
begin to appear. This nevertheless cannot lead to
fumigation activities being suspended, since such a
measure could weaken the st ate and at the same
time would reinforce the different groups which

finance themselves by illicit drug trafficking,
something which without any shadow of doubt is a
scourge on Colombian society and on mankind as a
whole. The fact is not overlooked – because the
evidence clearly demonstrates it – that certain
problems and complaints do arise, but these are not

as serious as the plaintiff claims, and this means that
permanent and strict controls of fumigation
activities are required.

It should be stressed that there is no evidence
whatsoever on the file to accredit any failure to
comply with the measures that were imposed on the
National Narcotics Division by the Ministry for the

384program on the basis of an alleged transgression of

environmental rights and obligations.

4.37. After a careful review of the documentary evidence, the

Council of State concluded that the grounds for the claim were
not valid. In its view, there was no need to suspend or halt the

aerial sprayings for the following reasons:

“It cannot be accurately inferred from the evidence

outlined that Glyphosate causes irreversible damage
to the environment when it is used for eradicating
illicit crops; on the other hand, a number of facts
lead to the conclusion that sprayed areas regenerate
in a relatively short period of time and that many
hectares of forest are destroyed when trees are felled

by growers of illicit crops. Clearly, the guidelines
stated by the environmental authorities should be
followed when illicit crops are being sprayed, and
not even the slightest deviation from these should be
permitted, which means that it is therefore necessary

for permanent controls to be undertaken, with
continuous evaluations, of any effects which might
begin to appear. This nevertheless cannot lead to
fumigation activities being suspended, since such a
measure could weaken the st ate and at the same
time would reinforce the different groups which

finance themselves by illicit drug trafficking,
something which without any shadow of doubt is a
scourge on Colombian society and on mankind as a
whole. The fact is not overlooked – because the
evidence clearly demonstrates it – that certain
problems and complaints do arise, but these are not

as serious as the plaintiff claims, and this means that
permanent and strict controls of fumigation
activities are required.

It should be stressed that there is no evidence
whatsoever on the file to accredit any failure to
comply with the measures that were imposed on the
National Narcotics Division by the Ministry for theincluding studies of soil and water, and impact on human health,

as well as verifications of the spraying missions, had been taking
place since the 1990s.

4.40. The assessments carried out by Colombia concluded that

there was no risk of significant harm from the aerial spraying

activities. Independent scientific analyses of the spray mixture

used in the program and tests conducted by Ecuador itself on the

ground in 2004 also excluded that the aerial sprayings presented

significant haz ards for human health and the environment. In

other words, Colombia did conduct an EIA prior to the start of

the spraying operations in the border area with Ecuador, and

thereafter it continued to perform all the necessary monitoring
activities to ensure compliance with the EMP, built on the basis

of the EIA. By doing so, Colombia fully complied with its

obligations of due diligence to take all reasonable steps to

prevent any possible impact on human health and the

environment.

4.41. On the basis of the EMP, the aerial spraying program

was subject to a continuous and diligent monitoring under the

double scrutiny of the Ministry for the Environment and of an

external audit – as will now be seen.

(2) C OLOMBIA ’S EXERCISEOFDUEDILIGENCE IN CONDUCTING
THE P ROGRAM

4.42. Colombia has conducted the PECIG with due diligence,

having devoted significant resources to reviewing the potential
environmental impact of the program and ascertaining whether

386including studies of soil and water, and impact on human health,

as well as verifications of the spraying missions, had been taking
place since the 1990s.

4.40. The assessments carried out by Colombia concluded that

there was no risk of significant harm from the aerial spraying

activities. Independent scientific analyses of the spray mixture

used in the program and tests conducted by Ecuador itself on the

ground in 2004 also excluded that the aerial sprayings presented

significant haz ards for human health and the environment. In

other words, Colombia did conduct an EIA prior to the start of

the spraying operations in the border area with Ecuador, and

thereafter it continued to perform all the necessary monitoring
activities to ensure compliance with the EMP, built on the basis

of the EIA. By doing so, Colombia fully complied with its

obligations of due diligence to take all reasonable steps to

prevent any possible impact on human health and the

environment.

4.41. On the basis of the EMP, the aerial spraying program

was subject to a continuous and diligent monitoring under the

double scrutiny of the Ministry for the Environment and of an

external audit – as will now be seen.

(2) C OLOMBIA ’S EXERCISEOFDUEDILIGENCE IN CONDUCTING
THE P ROGRAM

4.42. Colombia has conducted the PECIG with due diligence,

having devoted significant resources to reviewing the potential
environmental impact of the program and ascertaining whether4.44. In order to arrive at its decision, Colombia resorted to

comparative studies between different herbicides, which

indicated glyphosate in terms of its non-effect on human health

and the environment. 808 Moreover, glyphosate formulations

duly registered with the EPA and backed by rigorous scientific

studies were selected. 809

4.45. Given its wide -spread use, glyphosate has been widely

studied and its properties are well known. Numerous

international studies were taken into account when glyphosate

was selected as the active ingredient. 810

4.46. The Colombian Ministry of Health issued toxicological

opinions on several glyphosate -formulated products, in 1992,

1993, 1994, 1999, 2000, 2001, 2002, 2003, 2006 and 2008. 811

All the opinions that refer to glyphosate state it to be toxicity

category IV (slightly toxic).

808 CR, Vol. V , Annex 59: U.S. Department of State , Bureau for
International Narcotics Matters, Herbicide Selection for Coca Eradication ,
May 1984.
809 See above, paras. 2.34 -2.38. CR, Vol. IV, Annex 55: Note from the

Environmental Protection Agency (EPA) to the United States Embassy in
Bogotá, enclosing answers and bibliography of studies on glyphosate
810bicide, 23 Sep. 2011, attached bibliography.
CR, Vol. III, Annex 31, Sections 7.1 and 7.2, pp. 127- 131. For
instance, Section 7.1 of the 2000 document, entitled: “Herbicides
displacement in soils”, refers to the following studies: Letey d Farmer
(1994), Stikler, Knake and Hinestry (1969), Weed and Weber (1994), Riley
and Eagle (1994). Section 7.2 refers to reports on research on the effects of
glyphosate herbicide on tropical soils, and discusses the following studies:

811lis (1994), C.S. Helling (1997), Claes (1998), Mendoza et al. (1998).
CR, Vol. IV, Annex 35: Ministry of Health, Toxicological Opinion
N° LP – 0173 – 93, 2 Apr. 1993; Toxicological Opinion N° MP – 12118 –
2001, 5 Nov. 2001; Toxicological Opinion N° LP – 12499 – 2002, 29 Apr.
2002.

3884.44. In order to arrive at its decision, Colombia resorted to

comparative studies between different herbicides, which

indicated glyphosate in terms of its non-effect on human health

and the environment. 808 Moreover, glyphosate formulations

duly registered with the EPA and backed by rigorous scientific

studies were selected. 809

4.45. Given its wide -spread use, glyphosate has been widely

studied and its properties are well known. Numerous

international studies were taken into account when glyphosate

was selected as the active ingredient. 810

4.46. The Colombian Ministry of Health issued toxicological

opinions on several glyphosate -formulated products, in 1992,

1993, 1994, 1999, 2000, 2001, 2002, 2003, 2006 and 2008. 811

All the opinions that refer to glyphosate state it to be toxicity

category IV (slightly toxic).

808 CR, Vol. V , Annex 59: U.S. Department of State , Bureau for
International Narcotics Matters, Herbicide Selection for Coca Eradication ,
May 1984.
809 See above, paras. 2.34 -2.38. CR, Vol. IV, Annex 55: Note from the

Environmental Protection Agency (EPA) to the United States Embassy in
Bogotá, enclosing answers and bibliography of studies on glyphosate
810bicide, 23 Sep. 2011, attached bibliography.
CR, Vol. III, Annex 31, Sections 7.1 and 7.2, pp. 127- 131. For
instance, Section 7.1 of the 2000 document, entitled: “Herbicides
displacement in soils”, refers to the following studies: Letey d Farmer
(1994), Stikler, Knake and Hinestry (1969), Weed and Weber (1994), Riley
and Eagle (1994). Section 7.2 refers to reports on research on the effects of
glyphosate herbicide on tropical soils, and discusses the following studies:

811lis (1994), C.S. Helling (1997), Claes (1998), Mendoza et al. (1998).
CR, Vol. IV, Annex 35: Ministry of Health, Toxicological Opinion
N° LP – 0173 – 93, 2 Apr. 1993; Toxicological Opinion N° MP – 12118 –
2001, 5 Nov. 2001; Toxicological Opinion N° LP – 12499 – 2002, 29 Apr.
2002.4.49. This Technical Opinion shows that the Ministry carried

out tests of water in areas that had been directly spra yed and

found only “traces of Glyphosate that did not exceed 6 ppm,

[parts per million] which is a low concentration that initially
dilutes and subsequently deteriorates as a result of microbial

action.” 814

4.50. In relation to soils, the Technical Opinion stated that:

“C.S. Helling (1997) worked on the environmental
dissipation, Panama and Peru regions with high
doses, no residues were found of parent material or

its principal metabolite, amino acid
aminomethylphosphonic (AMPA), in samples of
soils taken after 1.5 to 3 months from the

application.
The mobility in the soil was reduced when it

coincided with a high pH and the presence of large
quantities of inorganic phosphates. It is rapidly
absorbed and rapidly affixes on the soil, related to
the quantity of si tes that link with available

phosphates.

Microbial degradation processes in different strains
of degradation with first -order linear kinetics.
AMPA metabolite is more persistent. The
glyphosate has an average life of 47 days and all the

crops can be plant ed or transplanted immediately
after its application.

No significant changes in the populations of
bacteria and fungi are reported in the soil, especially
in nitrifiers.

…In a field experiment for forest ecosystems, the
glyphosate rapidly dissipated in a small stream of

very slow flow, in an 8-hectare area aerially sprayed
with Roundup.

814 ER, Vol. V, Annex 132, p. 8.

3904.49. This Technical Opinion shows that the Ministry carried

out tests of water in areas that had been directly spra yed and

found only “traces of Glyphosate that did not exceed 6 ppm,

[parts per million] which is a low concentration that initially
dilutes and subsequently deteriorates as a result of microbial

action.” 814

4.50. In relation to soils, the Technical Opinion stated that:

“C.S. Helling (1997) worked on the environmental
dissipation, Panama and Peru regions with high
doses, no residues were found of parent material or

its principal metabolite, amino acid
aminomethylphosphonic (AMPA), in samples of
soils taken after 1.5 to 3 months from the

application.
The mobility in the soil was reduced when it

coincided with a high pH and the presence of large
quantities of inorganic phosphates. It is rapidly
absorbed and rapidly affixes on the soil, related to
the quantity of si tes that link with available

phosphates.

Microbial degradation processes in different strains
of degradation with first -order linear kinetics.
AMPA metabolite is more persistent. The
glyphosate has an average life of 47 days and all the

crops can be plant ed or transplanted immediately
after its application.

No significant changes in the populations of
bacteria and fungi are reported in the soil, especially
in nitrifiers.

…In a field experiment for forest ecosystems, the
glyphosate rapidly dissipated in a small stream of

very slow flow, in an 8-hectare area aerially sprayed
with Roundup.

814 ER, Vol. V, Annex 132, p. 8.Colombian authorities, found no traces of glyphosate or AMPA

residues.

4.53. The EMP submitted to the Environment Ministry in
2001 is particularly telling with regard to the attention that

characterised the entire process of the Program’s

implementation prior to 2000:

“1.3 BACKGROUND

(…) The Program for the Eradication of Illicit Crops
has developed the processes detailed below to
determine the use of Glyphosate during the aerial
spraying of illicit crops.

The Colombian Government has been using the
aerial spraying method as a highly efficient and
effective mechanism for the elimination of illicit
crops since 1984, without prejudice to the ongoing
plans, social agreements for voluntary eradication

with the participation of local communities. Thus,
from 1988, the ruling Government considered
convenient to involve the environmental variable in
the application of the mentioned method, by petition
of the INDERENA (National Institute for Natural
Renewable Resources and the Environment). Based

on t his decision, several studies were carried out
tending to environmentally characterize the illicit
crop areas and to establish environmental
administration methods.

It is clear from past studies that the decision to
recommend Glyphosate was due to a systematic and
scientific procedure which considered the most
advisable environmental and toxicological risk
variables, as elements guiding the criteria for its

selection, to date.
In the beginning of 1994 a Scientific and Technical
Agreement between the Nation al Narcotics

Directorate (DNE), the United States Department of
Agriculture (USDA -ARS) and the Programming

392Colombian authorities, found no traces of glyphosate or AMPA

residues.

4.53. The EMP submitted to the Environment Ministry in
2001 is particularly telling with regard to the attention that

characterised the entire process of the Program’s

implementation prior to 2000:

“1.3 BACKGROUND

(…) The Program for the Eradication of Illicit Crops
has developed the processes detailed below to
determine the use of Glyphosate during the aerial
spraying of illicit crops.

The Colombian Government has been using the
aerial spraying method as a highly efficient and
effective mechanism for the elimination of illicit
crops since 1984, without prejudice to the ongoing
plans, social agreements for voluntary eradication

with the participation of local communities. Thus,
from 1988, the ruling Government considered
convenient to involve the environmental variable in
the application of the mentioned method, by petition
of the INDERENA (National Institute for Natural
Renewable Resources and the Environment). Based

on t his decision, several studies were carried out
tending to environmentally characterize the illicit
crop areas and to establish environmental
administration methods.

It is clear from past studies that the decision to
recommend Glyphosate was due to a systematic and
scientific procedure which considered the most
advisable environmental and toxicological risk
variables, as elements guiding the criteria for its

selection, to date.
In the beginning of 1994 a Scientific and Technical
Agreement between the Nation al Narcotics

Directorate (DNE), the United States Department of
Agriculture (USDA -ARS) and the Programmingpresence of illicit crops, with 66,022 hectares of coca crops,

equal to 40% of the nation’s total. 821

4.55. The PECIG has been carefully studied and implemented.

In addition to the aforementioned analyses, numerous

independent scientific analyses of the mixture were conducted

during the life of the program, including the independent

CICAD I and CICAD II studies, within the framework of the

Organization of American States (OAS), and the toxicity studies

conducted by a US laboratory contracted by the State
822
Department in 2003 and reviewed by the EPA . Those various

studies attest to the fact that the mixture used in Colombia’s

aerial spraying program has no significant impact on human

health and the environment.

(b) Environmental Impact Assessment within the framework
of the EMP

4.56. As explained above, upon the entry into force of Law 99

of 1993, the PECIG came within the purview of the transitional
823
regime, as corroborated at the time by the Ministry for the
824
Environment on several occasions. Therefore, pursuant to

that Law and the transitional regime regulated by Article 38 of

Decree 1753 of 1994, the PECIG was not required to obtain an

environmental license or conduct an EIA, due to the fact that it

821 CR, Vol. III, Annex 33, pp. 15 -17.
822
See above para. 2.55. CR, Vol. V , Annex 56 : United States
Environmental Protection Agency (EPA), Memorandum of 13 May 2003,
Technical Review of the six acute toxicity studies on the spr ay mixture for
Eradication of Illicit Crops in Colombia.
823 CCM, paras. 4.10-4.11; CR, Vol. II, Annex 7,Zapata Report, para. 30.
824 See above, para. 4.24.

394presence of illicit crops, with 66,022 hectares of coca crops,

equal to 40% of the nation’s total. 821

4.55. The PECIG has been carefully studied and implemented.

In addition to the aforementioned analyses, numerous

independent scientific analyses of the mixture were conducted

during the life of the program, including the independent

CICAD I and CICAD II studies, within the framework of the

Organization of American States (OAS), and the toxicity studies

conducted by a US laboratory contracted by the State
822
Department in 2003 and reviewed by the EPA . Those various

studies attest to the fact that the mixture used in Colombia’s

aerial spraying program has no significant impact on human

health and the environment.

(b) Environmental Impact Assessment within the framework
of the EMP

4.56. As explained above, upon the entry into force of Law 99

of 1993, the PECIG came within the purview of the transitional
823
regime, as corroborated at the time by the Ministry for the
824
Environment on several occasions. Therefore, pursuant to

that Law and the transitional regime regulated by Article 38 of

Decree 1753 of 1994, the PECIG was not required to obtain an

environmental license or conduct an EIA, due to the fact that it

821 CR, Vol. III, Annex 33, pp. 15 -17.
822
See above para. 2.55. CR, Vol. V , Annex 56 : United States
Environmental Protection Agency (EPA), Memorandum of 13 May 2003,
Technical Review of the six acute toxicity studies on the spr ay mixture for
Eradication of Illicit Crops in Colombia.
823 CCM, paras. 4.10-4.11; CR, Vol. II, Annex 7,Zapata Report, para. 30.
824 See above, para. 4.24.“Assessment of Environmental Impacts of Eradication w ith

Glyphosate in the Short, Mid, and Long Term”. 828

4.59. The 2000 Supplementary Information to the EMP also

includes the following EIA elements: Chapter II, relating to the

“Determination of Aspects and Criteria (environmental, socio -

economic, and operational) considered in the Selection of
Reference Areas”, and Chapter III, entitled “Designing the

Specific Measures foreseen in the Plan for Environmental

Prevention, Correction, Mitigation, and Compensation for the

Effects that may result from the Application of Glyphosate for

the Eradication of Illicit Crops in Areas Neighboring the

National Natural Parks System (Amendment of numeral 2 of
article 1 of Order 599 of December 1999 by Order No. 143 of

March 2000)”. 829

4.60. Furthermore, in the final version of the EMP which was

adopted in 2001, it is clearly set out that the EMP has been

structured as an EIA:

“According to the regulations in force, although an
environmental management plan must be focused

on the measures to be applied for the control of
impacts of a certain activity or project, it has been
deemed convenient to give this EMP a similar
structure as that of a regular Environmental Impact
Study, due to the high sensitivity existing around

the subject o830erial spraying of the illicit crops with
glyphosate.”

828 CR, Vol. III, Annex 31, Table of contents, Chapter V.
829
830 CR, Vol. III, Annex 31, Table of contents, Chapters II and III.
CR, Vol. III, Annex 33, Introduction, p. 4.

396“Assessment of Environmental Impacts of Eradication w ith

Glyphosate in the Short, Mid, and Long Term”. 828

4.59. The 2000 Supplementary Information to the EMP also

includes the following EIA elements: Chapter II, relating to the

“Determination of Aspects and Criteria (environmental, socio -

economic, and operational) considered in the Selection of
Reference Areas”, and Chapter III, entitled “Designing the

Specific Measures foreseen in the Plan for Environmental

Prevention, Correction, Mitigation, and Compensation for the

Effects that may result from the Application of Glyphosate for

the Eradication of Illicit Crops in Areas Neighboring the

National Natural Parks System (Amendment of numeral 2 of
article 1 of Order 599 of December 1999 by Order No. 143 of

March 2000)”. 829

4.60. Furthermore, in the final version of the EMP which was

adopted in 2001, it is clearly set out that the EMP has been

structured as an EIA:

“According to the regulations in force, although an
environmental management plan must be focused

on the measures to be applied for the control of
impacts of a certain activity or project, it has been
deemed convenient to give this EMP a similar
structure as that of a regular Environmental Impact
Study, due to the high sensitivity existing around

the subject o830erial spraying of the illicit crops with
glyphosate.”

828 CR, Vol. III, Annex 31, Table of contents, Chapter V.
829
830 CR, Vol. III, Annex 31, Table of contents, Chapters II and III.
CR, Vol. III, Annex 33, Introduction, p. 4. 4.4.2 Impact on agricultural production and
livestock

4.4.3 Impact on human settlements and migration

4.4.4 Cultural impact
4.4.5 Other impacts

4.5 General summary” 832

4.63. Chapter 3 of the 2001 EMP also supplements certain

elements of the EIA, as it “describes the general baseline of the

Program comprised by the general physical, biotic and

socioeconomic conditions of the coca and poppy areas and the

socioeconomic and environmental impact created by the illicit

crops, the stage within which PECIG control activities are
833
performed”. Its table of contents reads as follows:

“3. ENVIRONMENTAL BASELINE

3.1. Identification of the area of influence

3.1.1 Criteria for the selection of the areas for aerial
spraying

3.1.2 Areas of influence for PECIG
3.2 General conditions of the illicit crop areas in

Colombia
3.2.1 Physical components

3.2.2 Biotic conditions

3.2.3 Social, economic and cultural components

3.2.4 Social deterioration induced by illicit crops:
social frame of PECIG

3.2.5 Environmental deterioration due to illicit
crops: environmental framework of PECIG

832 CR, Vol. III, Annex 33, Table of contents, Chapter 4.
833 Ibid., p. 4.

398 4.4.2 Impact on agricultural production and
livestock

4.4.3 Impact on human settlements and migration

4.4.4 Cultural impact
4.4.5 Other impacts

4.5 General summary” 832

4.63. Chapter 3 of the 2001 EMP also supplements certain

elements of the EIA, as it “describes the general baseline of the

Program comprised by the general physical, biotic and

socioeconomic conditions of the coca and poppy areas and the

socioeconomic and environmental impact created by the illicit

crops, the stage within which PECIG control activities are
833
performed”. Its table of contents reads as follows:

“3. ENVIRONMENTAL BASELINE

3.1. Identification of the area of influence

3.1.1 Criteria for the selection of the areas for aerial
spraying

3.1.2 Areas of influence for PECIG
3.2 General conditions of the illicit crop areas in

Colombia
3.2.1 Physical components

3.2.2 Biotic conditions

3.2.3 Social, economic and cultural components

3.2.4 Social deterioration induced by illicit crops:
social frame of PECIG

3.2.5 Environmental deterioration due to illicit
crops: environmental framework of PECIG

832 CR, Vol. III, Annex 33, Table of contents, Chapter 4.
833 Ibid., p. 4.contracted by DNE, in compliance with the EMP, since the
837
1990s; and third, the verification missions by the Embassy of

the United States, which , since 1997, have bee n carried out

jointly with Colombian officials (Anti- Narcotics Police,
838
Ministry for Environment, ICA, DNE, IGAC).

4.67. An example of the strict oversight of the aerial sprayings

program by the Ministry for the Environment, is Order No. 2282

of 21 December 2005, in which the results of a technical visit to

the sites affected by sprayings in the provinces of Putumayo and

Caquetá are described. In addition to the Ministry for the

Environment, officials from the National Geographic Institute,

the execution of the Environmental Management Plan of the Program for the
Eradication of Illicit Crops by Aerial Spraying with Glyphosate (PECIG) is
carried out, 21 Dec. 2005. ; Vol. IV, Annex 40- B: Ministry for the
Environment, Order No. 2283 whereby a monitoring of the execution of the
Environmental Management Plan of the Program for the Eradication of Illicit

Crops by Aerial Spraying with Glyphosate (PECIG) is carried out, 21 Dec.
8375.
CCM, paras. 4.28- 4.29. CCM , Vol. II, Annexes 37, 41, 49; CR,
Vol. IV, Annex 41: List of External Environmental Audits by the National
Narcotics Directorate (DNE); Annex 41-A: Inter-Agency Commission for the
Verification of Eradicated Crops (DNE, DIRAN, and foreign experts from
USDA/ARS and INL-Washington), Report on the environmental audit for the

eradication of illicit crops, Bogotá, 26 Mar. 1997; Annex 41 -B:
Environmental Audit on the eradication of illicit crops, Report on Activities,
Program for the Eradication of Illicit Crops by Aerial Spraying with
Glyphosate, Period 1- 30 Sep. 2000, 18 Oct. 2000 ; Annex 41 -C:
Environmental Audit on the eradication of illicit crops, Report on Activities,
Program for the Eradication of Illicit Crops by Aerial Spraying with
Glyphosate. Period 10 Nov. to 9 Dec. 2003. 18 Dec. 2003; Annex 41-D:
Audit to the Program for the Eradication of Illicit Crops. Report on

Activities, Program for the Eradication of Illicit Crops by Aerial Spraying
with Glyphosate. Audited period: 5. Nov. to 4 Dec.2004, 7 Dec. 2004; Annex
41-E: Audit to the Program for the Eradication of Illicit Crops by Aerial
Spraying with Glyphosate Herbicide. Report No. 3. Audited period: 19 Dec.
2006 to 18 Jan. 2007. Jan. 2007.
838 CCM, Vol. II, Annex 70, Appendix 1; CR, Vol. V, Annex 58:
Embassy of the United States of America, List of Aerial Eradication

Verification Mission since 199 7; Appendix: Implementation of the
verification protocol January – July 1998, carried out October 18-23, 1998.

400contracted by DNE, in compliance with the EMP, since the
837
1990s; and third, the verification missions by the Embassy of

the United States, which , since 1997, have bee n carried out

jointly with Colombian officials (Anti- Narcotics Police,
838
Ministry for Environment, ICA, DNE, IGAC).

4.67. An example of the strict oversight of the aerial sprayings

program by the Ministry for the Environment, is Order No. 2282

of 21 December 2005, in which the results of a technical visit to

the sites affected by sprayings in the provinces of Putumayo and

Caquetá are described. In addition to the Ministry for the

Environment, officials from the National Geographic Institute,

the execution of the Environmental Management Plan of the Program for the
Eradication of Illicit Crops by Aerial Spraying with Glyphosate (PECIG) is
carried out, 21 Dec. 2005. ; Vol. IV, Annex 40- B: Ministry for the
Environment, Order No. 2283 whereby a monitoring of the execution of the
Environmental Management Plan of the Program for the Eradication of Illicit

Crops by Aerial Spraying with Glyphosate (PECIG) is carried out, 21 Dec.
8375.
CCM, paras. 4.28- 4.29. CCM , Vol. II, Annexes 37, 41, 49; CR,
Vol. IV, Annex 41: List of External Environmental Audits by the National
Narcotics Directorate (DNE); Annex 41-A: Inter-Agency Commission for the
Verification of Eradicated Crops (DNE, DIRAN, and foreign experts from
USDA/ARS and INL-Washington), Report on the environmental audit for the

eradication of illicit crops, Bogotá, 26 Mar. 1997; Annex 41 -B:
Environmental Audit on the eradication of illicit crops, Report on Activities,
Program for the Eradication of Illicit Crops by Aerial Spraying with
Glyphosate, Period 1- 30 Sep. 2000, 18 Oct. 2000 ; Annex 41 -C:
Environmental Audit on the eradication of illicit crops, Report on Activities,
Program for the Eradication of Illicit Crops by Aerial Spraying with
Glyphosate. Period 10 Nov. to 9 Dec. 2003. 18 Dec. 2003; Annex 41-D:
Audit to the Program for the Eradication of Illicit Crops. Report on

Activities, Program for the Eradication of Illicit Crops by Aerial Spraying
with Glyphosate. Audited period: 5. Nov. to 4 Dec.2004, 7 Dec. 2004; Annex
41-E: Audit to the Program for the Eradication of Illicit Crops by Aerial
Spraying with Glyphosate Herbicide. Report No. 3. Audited period: 19 Dec.
2006 to 18 Jan. 2007. Jan. 2007.
838 CCM, Vol. II, Annex 70, Appendix 1; CR, Vol. V, Annex 58:
Embassy of the United States of America, List of Aerial Eradication

Verification Mission since 199 7; Appendix: Implementation of the
verification protocol January – July 1998, carried out October 18-23, 1998.4.69. The monthly external audit contracted by DNE since the

1990s, has assessed the Program’s environmental impacts an d

made recommendations that are followed as evidenced in

subsequent audit reports. The audit reports also describe the
activities carried out during the relevant periods, including inter-

agency meetings, aerial reconnaissance and verifications,

spraying op erations, and management indicators. Relevant

examples of these external audits for 1997, 2000, 2003 and 2007

can be found at Annex41 (A-E) of the present Rejoinder. 843

4.70. For instance, the supplementary information submitted

with the EMP in 2000 contains a de scription of the detailed

verifications that had been carried out between 1995 and 1997,

in order to gauge natural regeneration processes and ensure that

natural vegetation surrounding illicit crops subject to eradication

remained unaffected. The relevant information included a series

of photographs from plots sprayed in different regions and

843 CR, Vol. IV , Annex 41: List of External Environmental Audi ts by
the National Narcotics Directorate (DNE) ; Annex 41 -A: Inter-Agency
Commission for the Verification of Eradicated Crops (DNE, DIRAN, and
foreign experts from USDA/ARS and INL -Washington), Report on the
environmental audit for the eradication of illicit crops, Bogotá, 26 Mar. 1997;

Annex 41-B: Environmental Audit on the eradication of illicit crops, Report
on Activities, Program for the Eradication of Illicit Crops by Aerial Spraying
with Glyphosate, Period 1 -30 Sep. 2000, 18 Oct. 2000; Annex 41 -C:
Environmental Audit on the eradication of illicit crops, Report on Activities,
Program for the Eradication of Illicit Crops by Aerial Spraying with
Glyphosate. Period 10 Nov. to 9 Dec. 2003. 18 Dec. 2003; Annex 41-D:
Audit to the Program for the Eradication o f Illicit Crops. Report on
Activities, Program for the Eradication of Illicit Crops by Aerial Spraying
with Glyphosate. Audited period: 5. Nov. to 4 Dec.2004, 7 Dec. 2004; Annex
41-E: Audit to the Program for the Eradication of Illicit Crops by Aerial
Spraying with Glyphosate Herbicide. Report No. 3. Audited period: 19 Dec.
2006 to 18 Jan. 2007. Jan. 2007.

4024.69. The monthly external audit contracted by DNE since the

1990s, has assessed the Program’s environmental impacts an d

made recommendations that are followed as evidenced in

subsequent audit reports. The audit reports also describe the
activities carried out during the relevant periods, including inter-

agency meetings, aerial reconnaissance and verifications,

spraying op erations, and management indicators. Relevant

examples of these external audits for 1997, 2000, 2003 and 2007

can be found at Annex41 (A-E) of the present Rejoinder. 843

4.70. For instance, the supplementary information submitted

with the EMP in 2000 contains a de scription of the detailed

verifications that had been carried out between 1995 and 1997,

in order to gauge natural regeneration processes and ensure that

natural vegetation surrounding illicit crops subject to eradication

remained unaffected. The relevant information included a series

of photographs from plots sprayed in different regions and

843 CR, Vol. IV , Annex 41: List of External Environmental Audi ts by
the National Narcotics Directorate (DNE) ; Annex 41 -A: Inter-Agency
Commission for the Verification of Eradicated Crops (DNE, DIRAN, and
foreign experts from USDA/ARS and INL -Washington), Report on the
environmental audit for the eradication of illicit crops, Bogotá, 26 Mar. 1997;

Annex 41-B: Environmental Audit on the eradication of illicit crops, Report
on Activities, Program for the Eradication of Illicit Crops by Aerial Spraying
with Glyphosate, Period 1 -30 Sep. 2000, 18 Oct. 2000; Annex 41 -C:
Environmental Audit on the eradication of illicit crops, Report on Activities,
Program for the Eradication of Illicit Crops by Aerial Spraying with
Glyphosate. Period 10 Nov. to 9 Dec. 2003. 18 Dec. 2003; Annex 41-D:
Audit to the Program for the Eradication o f Illicit Crops. Report on
Activities, Program for the Eradication of Illicit Crops by Aerial Spraying
with Glyphosate. Audited period: 5. Nov. to 4 Dec.2004, 7 Dec. 2004; Annex
41-E: Audit to the Program for the Eradication of Illicit Crops by Aerial
Spraying with Glyphosate Herbicide. Report No. 3. Audited period: 19 Dec.
2006 to 18 Jan. 2007. Jan. 2007. agrochemicals during their growing process
(herbicides, foliar fertilizers, insecticides, etc.).

Arboreal vegetation and shrubs were observed
surrounding sprayed plots, without any adverse
effect. Likewise, the presence of entomological
fauna on the upper soil layer was observed
845
(arthropods, termites, annelids and arachnids).”

4.72. The continuous care and control exercised over the
Program is evidenced by the verification mission reports from

the United States’ Embassy in Bogota, that include information

on the members of the evaluation commission, evaluation

parameters, selection of plots, work schedule, logistics and

reporting, environment and other aspects, recommendations,
846
etc. Thus, for instance, in a Verification Mission conducted in

1998, the following findings were reported:

“In all lots verified from the air or on the ground,
an aggressive natural regeneration process can be
observed, with a large number of s pecies. (See

photograph VC 16- RVC 03/98). In general, it has
been more than 180 days since these lots were
sprayed. The excellent biological activity in the
soils, both micro- fauna and arthropods, is also

worth noting. This means that a good number of
insects can be found mainly representatives of the
annelids, termites, ants and spiders.

The main species in natural regeneration present in
the vegetable succession that are abundant and
frequent in the Orinoco biome after spraying are
listed below. Stru cturally, this succession is

dominated by a thick herbaceous cover in grasses of

845 CR Vol. IV, Annex 41-A, p. 7.
846 CCM, Vol. II, Annex 70, Appendix 1; CR, Vol. V, Annex 58:
Embassy of the United States of America, List of Aerial Eradication
Verification Mission since 1997.

404 agrochemicals during their growing process
(herbicides, foliar fertilizers, insecticides, etc.).

Arboreal vegetation and shrubs were observed
surrounding sprayed plots, without any adverse
effect. Likewise, the presence of entomological
fauna on the upper soil layer was observed
845
(arthropods, termites, annelids and arachnids).”

4.72. The continuous care and control exercised over the
Program is evidenced by the verification mission reports from

the United States’ Embassy in Bogota, that include information

on the members of the evaluation commission, evaluation

parameters, selection of plots, work schedule, logistics and

reporting, environment and other aspects, recommendations,
846
etc. Thus, for instance, in a Verification Mission conducted in

1998, the following findings were reported:

“In all lots verified from the air or on the ground,
an aggressive natural regeneration process can be
observed, with a large number of s pecies. (See

photograph VC 16- RVC 03/98). In general, it has
been more than 180 days since these lots were
sprayed. The excellent biological activity in the
soils, both micro- fauna and arthropods, is also

worth noting. This means that a good number of
insects can be found mainly representatives of the
annelids, termites, ants and spiders.

The main species in natural regeneration present in
the vegetable succession that are abundant and
frequent in the Orinoco biome after spraying are
listed below. Stru cturally, this succession is

dominated by a thick herbaceous cover in grasses of

845 CR Vol. IV, Annex 41-A, p. 7.
846 CCM, Vol. II, Annex 70, Appendix 1; CR, Vol. V, Annex 58:
Embassy of the United States of America, List of Aerial Eradication
Verification Mission since 1997.where this collaboration has been implemented: Peru, Bolivia

and Guatemala have received similar training and programmes).
INL has assigned officials to Colombia and other specialist

officials routinely visit the country, allowing for direct and

permanent supervision. The country manager sends a monthly

report which is then consolidated with the other country reports

by the Deputy Director of the Office o f Aviation, in order to
849
produce the contractor’s monthly evaluation.

4.76. All of the above goes to demonstrate the extent to which

Colombia applied care and due diligence to the conduct of the

aerial sprayings program throughout its duration, and that all the

necessary controls and measures have been adopted in order to
ensure that that is the case.

4.77. Thus, in the light of the independent scientific evidence

and the studies and audits carried out within Colombia there was

no reason to believe that the spraying ac tivities would have

adverse trans -boundary environmental impacts, even in the

remote event that drift were to occur.

(d) Contacts with the Government of Ecuador

4.78. The Colombian Government has held constant meetings

and exchanges with the Ecuadorian Governme nt with regard to
850
the PECIG’s development.

849 See above, Chapter 2, Section C (2) (e) Pilots training and
performance.
850 CCM, paras. 5.10-5.44

406where this collaboration has been implemented: Peru, Bolivia

and Guatemala have received similar training and programmes).
INL has assigned officials to Colombia and other specialist

officials routinely visit the country, allowing for direct and

permanent supervision. The country manager sends a monthly

report which is then consolidated with the other country reports

by the Deputy Director of the Office o f Aviation, in order to
849
produce the contractor’s monthly evaluation.

4.76. All of the above goes to demonstrate the extent to which

Colombia applied care and due diligence to the conduct of the

aerial sprayings program throughout its duration, and that all the

necessary controls and measures have been adopted in order to
ensure that that is the case.

4.77. Thus, in the light of the independent scientific evidence

and the studies and audits carried out within Colombia there was

no reason to believe that the spraying ac tivities would have

adverse trans -boundary environmental impacts, even in the

remote event that drift were to occur.

(d) Contacts with the Government of Ecuador

4.78. The Colombian Government has held constant meetings

and exchanges with the Ecuadorian Governme nt with regard to
850
the PECIG’s development.

849 See above, Chapter 2, Section C (2) (e) Pilots training and
performance.
850 CCM, paras. 5.10-5.44commencing the Program without an adequate EIA, and further,

that it is also in breach for continuing the program without
continuing and adequate monitoring assessment. 854 It has been

shown in the preceding section that this claim fails as a matter of

fact and of Colombian law. It equally fails as a matter of

international law. This is not surprising since (a) international

law was not more stringent at relevant times than national legal

systems such as that of Colombia; (b) this Court has specifically

stated that the content and modalities of EIA are a matter for the

relevant national law; (c) the relevant national law was

authoritatively determined by the Council of State in 1995.

4.82. Ecuador now relies primarily not on such extra -regional
standards a s those of the Espoo Convention (which featured

strongly in its Memorial 85) but on this Court’s decision of 2010

in Pulp Mills on the River Uruguay (Argentina v. Uruguay) .

This requires further analysis.

4.83. In its Judgment on the merits in Pulp Mills , 856the Court

had to deal with Argentina’s argument that Uruguay failed to

carry out an appropriate EIA prior to authorizing the

construction of the pulp mills. The Court held that customary

international law does not specify the scope and content of an
environmental impact assessment, but rather these are to be

found in the domestic legislation of each State:

854 ER, Chapter 4, Sections I, II; Chap. 6, Sections III, A-C.
855 EM, paras. 8,25 fn. 644, 8.38, 8.44, 8.47 fn. 692, 8.49, 8.50, 8.56 fn.
709, 8.68.
856 Pulp Mills on the River U ruguay (Argentina v. Uruguay), ICJ
Reports 2010.

408commencing the Program without an adequate EIA, and further,

that it is also in breach for continuing the program without
continuing and adequate monitoring assessment. 854 It has been

shown in the preceding section that this claim fails as a matter of

fact and of Colombian law. It equally fails as a matter of

international law. This is not surprising since (a) international

law was not more stringent at relevant times than national legal

systems such as that of Colombia; (b) this Court has specifically

stated that the content and modalities of EIA are a matter for the

relevant national law; (c) the relevant national law was

authoritatively determined by the Council of State in 1995.

4.82. Ecuador now relies primarily not on such extra -regional
standards a s those of the Espoo Convention (which featured

strongly in its Memorial 85) but on this Court’s decision of 2010

in Pulp Mills on the River Uruguay (Argentina v. Uruguay) .

This requires further analysis.

4.83. In its Judgment on the merits in Pulp Mills , 856the Court

had to deal with Argentina’s argument that Uruguay failed to

carry out an appropriate EIA prior to authorizing the

construction of the pulp mills. The Court held that customary

international law does not specify the scope and content of an
environmental impact assessment, but rather these are to be

found in the domestic legislation of each State:

854 ER, Chapter 4, Sections I, II; Chap. 6, Sections III, A-C.
855 EM, paras. 8,25 fn. 644, 8.38, 8.44, 8.47 fn. 692, 8.49, 8.50, 8.56 fn.
709, 8.68.
856 Pulp Mills on the River U ruguay (Argentina v. Uruguay), ICJ
Reports 2010.fact caused, and was not liable to cause, significant adverse

impacts in a transboundary context or on any shared resource.

4.86. Further, in Pulp Mills there was no disput e between the

parties that a full EIA was necessary; as the Court recorded:

“The Parties agree on the need for a full
environmental impact assessment in order to assess

any sig859icant damage which might be caused by a
plan.”

Rather, the dispute between t he parties on this point concerned

whether the scope and conduct of the EIA which had in fact

been conducted by Uruguay had been sufficient.

4.87. Argentina argued that the EIA conducted by Uruguay

had been incomplete, in particular insofar as it made “no

provision for alternative sites for the mills and failed to include
860
any consultation of the affected populations”, and further

argued that the EIA had been deficient on the basis, inter alia ,

that it had “failed to take account of all potential impacts from

the mill, even though international law and practice require
861
it”. In support of that position, it relied on both the Espoo
Convention and the UNEP 1987 Goals and Principles. 862

4.88. The Court affirmed that, under the 1975 Statute, the

parties were required “for t he purposes of protecting and

preserving the aquatic environment with respect to activities

859 Pulp Mills on the River Uruguay (Argentina v. Uruguay), ICJ
Reports 2010, para. 116; see also para. 203.
860 Ibid., para. 118.
861 Ibid., para. 203.
862 Ibid.

410fact caused, and was not liable to cause, significant adverse

impacts in a transboundary context or on any shared resource.

4.86. Further, in Pulp Mills there was no disput e between the

parties that a full EIA was necessary; as the Court recorded:

“The Parties agree on the need for a full
environmental impact assessment in order to assess

any sig859icant damage which might be caused by a
plan.”

Rather, the dispute between t he parties on this point concerned

whether the scope and conduct of the EIA which had in fact

been conducted by Uruguay had been sufficient.

4.87. Argentina argued that the EIA conducted by Uruguay

had been incomplete, in particular insofar as it made “no

provision for alternative sites for the mills and failed to include
860
any consultation of the affected populations”, and further

argued that the EIA had been deficient on the basis, inter alia ,

that it had “failed to take account of all potential impacts from

the mill, even though international law and practice require
861
it”. In support of that position, it relied on both the Espoo
Convention and the UNEP 1987 Goals and Principles. 862

4.88. The Court affirmed that, under the 1975 Statute, the

parties were required “for t he purposes of protecting and

preserving the aquatic environment with respect to activities

859 Pulp Mills on the River Uruguay (Argentina v. Uruguay), ICJ
Reports 2010, para. 116; see also para. 203.
860 Ibid., para. 118.
861 Ibid., para. 203.
862 Ibid. 866
by Argentina”, before going on to find that, as a matter of
fact, consultation had actually taken place. 867

4.91. It seems that the Court’s ruling on th e point is that there

was no customary law obli gation to consult the potentially

affected population in Argentina , even in relation to a shared

resource. This is necessarily so given the fact that neither

Argentina nor Uruguay was party to the Espoo Convention, the

Court’s ruling the UNEP Goals and Principles were not binding,
and the fact that the ILC’s Draft Articles on Prevention could

only have been invoked on the basis that they represented

customary international law, which has not been established.

4.92. No doubt as a consequence of the Court’s decisi on,

Ecuador has, albeit sub silentio , dropped the argument
868
previously made in the Memorial to the effect that there is an

obligation as a matter of customary international environmental

law to carry out consultation with affected populations, although
it has reserved the right to argue that such a right exists as a

matter of human rights law, and in particular under ILO

Convention 169. 869

4.93. In light of the judgment of the Court, the matters

previously in dispute have to a certain extent been narrowed. On

the o ne hand, although Ecuador claimed in its Reply that

Colombia had not conducted an EIA, Colombia has shown that

866 Pulp Mills on the River Uruguay (Argentina v. Uruguay), ICJ
Reports 2010, para. 216.
867 Ibid., para. 152.
868 EM, paras. 8.55-8.62.
869 ER, para. 6.67 and fn. 1178.

412 866
by Argentina”, before going on to find that, as a matter of
fact, consultation had actually taken place. 867

4.91. It seems that the Court’s ruling on th e point is that there

was no customary law obli gation to consult the potentially

affected population in Argentina , even in relation to a shared

resource. This is necessarily so given the fact that neither

Argentina nor Uruguay was party to the Espoo Convention, the

Court’s ruling the UNEP Goals and Principles were not binding,
and the fact that the ILC’s Draft Articles on Prevention could

only have been invoked on the basis that they represented

customary international law, which has not been established.

4.92. No doubt as a consequence of the Court’s decisi on,

Ecuador has, albeit sub silentio , dropped the argument
868
previously made in the Memorial to the effect that there is an

obligation as a matter of customary international environmental

law to carry out consultation with affected populations, although
it has reserved the right to argue that such a right exists as a

matter of human rights law, and in particular under ILO

Convention 169. 869

4.93. In light of the judgment of the Court, the matters

previously in dispute have to a certain extent been narrowed. On

the o ne hand, although Ecuador claimed in its Reply that

Colombia had not conducted an EIA, Colombia has shown that

866 Pulp Mills on the River Uruguay (Argentina v. Uruguay), ICJ
Reports 2010, para. 216.
867 Ibid., para. 152.
868 EM, paras. 8.55-8.62.
869 ER, para. 6.67 and fn. 1178.of them have not entered into force, and others are applicable

only to European states. For example:

• UNCLOS, Article 206 (in force 16 November
1994); Colombia has not ratified this Convention

and, in any event, this article is irrelevant, since it

relates to the marine environment.

• 1997 Watercourses Convent ion, Article 12 (not

yet in force).

• Not even the Espoo Convention would have

applied. That Convention only came into force in

the European region on 10 September 1997. Its

application is circumscribed to Europe . Even

after the Espoo Convention entered into force,
the process of the adoption of the treaty was such

that binding bilateral relationships between co -

riparian states emerged only gradually. For

example, within the Danube River basin, several

co-riparians only ratified the agreement in the
late 19 90s and early 2000s, e.g., the Czech

Republic (2001), Germany (2002), Romania

(2001), Slovakia (1999), Slovenia (1998) and

Ukraine (1999). The only non-European state that

signed the Convention – but did not ratify it –
was the United States.

414of them have not entered into force, and others are applicable

only to European states. For example:

• UNCLOS, Article 206 (in force 16 November
1994); Colombia has not ratified this Convention

and, in any event, this article is irrelevant, since it

relates to the marine environment.

• 1997 Watercourses Convent ion, Article 12 (not

yet in force).

• Not even the Espoo Convention would have

applied. That Convention only came into force in

the European region on 10 September 1997. Its

application is circumscribed to Europe . Even

after the Espoo Convention entered into force,
the process of the adoption of the treaty was such

that binding bilateral relationships between co -

riparian states emerged only gradually. For

example, within the Danube River basin, several

co-riparians only ratified the agreement in the
late 19 90s and early 2000s, e.g., the Czech

Republic (2001), Germany (2002), Romania

(2001), Slovakia (1999), Slovenia (1998) and

Ukraine (1999). The only non-European state that

signed the Convention – but did not ratify it –
was the United States.acted reasonably in the circumstances, account being taken of

the requirements of national law at the time, an international

court should second guess their decision only on the basis of
very clear evidence to the contrary. The only question is

whether in fact an assessment was carried out, involving due

diligence.

4.101. The third preliminary point is one of nomenclature. It
does not matter whether or not the process is called an EIA

provided that it fulfils the purpose the Court had in mind in Pulp

Mills. In that regard, it must be the case that national law can
adopt reasonable transitional provisions for work already in

progress, and that an international court or tribunal will defer to

these.

(b) The content of the obligation of assessment

4.102. In its judgme nt in Pulp Mills the Court makes it clear

that the touchstone for the content of an EIA is the requirements
of national law, subject to the proviso that national law

adequately implements the obligation of due diligence which
874
characterises the obligation of prevention.

4.103. An initial point to be made – and a vital one – is that
there is no convincing evidence, let alone any proof, that the

spraying has caused the harms alleged by Ecuador, or indeed

any harm whatever: see Chapters 2-3 above. It will no doubt be

said that this is irrelevant because what is at stake is an

874
Pulp Mills on the River Uruguay (Argentina v. Uruguay), ICJ
Reports 2010, para. 205.

416acted reasonably in the circumstances, account being taken of

the requirements of national law at the time, an international

court should second guess their decision only on the basis of
very clear evidence to the contrary. The only question is

whether in fact an assessment was carried out, involving due

diligence.

4.101. The third preliminary point is one of nomenclature. It
does not matter whether or not the process is called an EIA

provided that it fulfils the purpose the Court had in mind in Pulp

Mills. In that regard, it must be the case that national law can
adopt reasonable transitional provisions for work already in

progress, and that an international court or tribunal will defer to

these.

(b) The content of the obligation of assessment

4.102. In its judgme nt in Pulp Mills the Court makes it clear

that the touchstone for the content of an EIA is the requirements
of national law, subject to the proviso that national law

adequately implements the obligation of due diligence which
874
characterises the obligation of prevention.

4.103. An initial point to be made – and a vital one – is that
there is no convincing evidence, let alone any proof, that the

spraying has caused the harms alleged by Ecuador, or indeed

any harm whatever: see Chapters 2-3 above. It will no doubt be

said that this is irrelevant because what is at stake is an

874
Pulp Mills on the River Uruguay (Argentina v. Uruguay), ICJ
Reports 2010, para. 205. systematic and (in the result) correct. In the

circumstances the assessment was equivalent to
what would have been required by a formal EIA,

and it was consistent with Colombian law at the

time.

(c) That assessment reasonably concluded that there

was in fact no risk of harm from the spray
program, whether within Colombia or (a fortiori)

within Ecuador.

(d) There was no scientific uncertainty in relation to

the properties and potential effects of the

ingredients of the spray mixture, such as would
justify a precautionary approach. In any event, as

attested by the attached scientific reports,

Colombia’s approach was precautionary.

(e) There was thereafter adequate monitoring of the

situation after the inception of the Program.

For these reasons, Colombia has fully complied with its

obligation of due diligence in terms both of initial and
subsequent assessment.

(4) CONCLUSIONS

4.105. Glyphosate is the most widely used commercial

herbicide in the world. Furthermore, the glyphosate formula
used for the aerial sprayings of illegal coca crops underwent the

entire toxicological assessment process required for its

authorization for agricultural use. While the formulation was

418 systematic and (in the result) correct. In the

circumstances the assessment was equivalent to
what would have been required by a formal EIA,

and it was consistent with Colombian law at the

time.

(c) That assessment reasonably concluded that there

was in fact no risk of harm from the spray
program, whether within Colombia or (a fortiori)

within Ecuador.

(d) There was no scientific uncertainty in relation to

the properties and potential effects of the

ingredients of the spray mixture, such as would
justify a precautionary approach. In any event, as

attested by the attached scientific reports,

Colombia’s approach was precautionary.

(e) There was thereafter adequate monitoring of the

situation after the inception of the Program.

For these reasons, Colombia has fully complied with its

obligation of due diligence in terms both of initial and
subsequent assessment.

(4) CONCLUSIONS

4.105. Glyphosate is the most widely used commercial

herbicide in the world. Furthermore, the glyphosate formula
used for the aerial sprayings of illegal coca crops underwent the

entire toxicological assessment process required for its

authorization for agricultural use. While the formulation wasprogressively improve it, all in accordance with Colombia’s

legislation. The cumulative effect of the EMP and related work

was at least equivalent to an EIA, and such equivalence is the

most that general international law can require in the absence of

an express treaty stipulation (which does not exist in the present

case).

4.109. The spraying operations were conducted with due

diligence and under strict supervision. The operations were

subjected to regular audits and monitoring by the Ministry for

the Environment, by external auditors contracted by the DNE

and through verification missions arranged by the Government

of the United States.

4.110. Under these circumstances Ecuador’s claim of breach o f

the obligation of due diligence based on failure of assessment ,

fails.

C. Ecuador’s Claims based on Violation of Territorial
Sovereignty

(1) E CUADOR ’S RELIANCE ON A P ANOPLY OF IRRELEVANT
RULES

4.111. In Chapter 5 of its Reply, Ecuador alleges that Colombia

has “violated the duty to respect Ecuador’s sovereignty .” To a

large extent it does so simply by recycling claims it makes in

other chapters: for example, it claims as a violation of
sovereignty and territorial integrity Colombia’s alleged failure to

conduct an EIA and to exercise due diligence in authorizing the

420progressively improve it, all in accordance with Colombia’s

legislation. The cumulative effect of the EMP and related work

was at least equivalent to an EIA, and such equivalence is the

most that general international law can require in the absence of

an express treaty stipulation (which does not exist in the present

case).

4.109. The spraying operations were conducted with due

diligence and under strict supervision. The operations were

subjected to regular audits and monitoring by the Ministry for

the Environment, by external auditors contracted by the DNE

and through verification missions arranged by the Government

of the United States.

4.110. Under these circumstances Ecuador’s claim of breach o f

the obligation of due diligence based on failure of assessment ,

fails.

C. Ecuador’s Claims based on Violation of Territorial
Sovereignty

(1) E CUADOR ’S RELIANCE ON A P ANOPLY OF IRRELEVANT
RULES

4.111. In Chapter 5 of its Reply, Ecuador alleges that Colombia

has “violated the duty to respect Ecuador’s sovereignty .” To a

large extent it does so simply by recycling claims it makes in

other chapters: for example, it claims as a violation of
sovereignty and territorial integrity Colombia’s alleged failure to

conduct an EIA and to exercise due diligence in authorizing the remains true even if minute amounts of spray

mixture drift across the border. Elsewhere, it

may be noted, Ecuador disclaims the “hermetic”

theory of absolute sovereignty whi ch its earlier
878
pleadings had implied.

• Ecuador seeks to convert Article 2 of the 1988

Narcotics Convention – an endorsement of

effective anti-drugs campaigns such as PECIG –

into a guarantee against aerial spraying. 879 This

perverse interpretation is discussed briefly below.

• Ecuador goes on to rely on a panoply of

irrelevant rules, displaying a tendency to throw a

textbook at the spraying program rather than
engaging in the actual arguments. Rules relied

on include:

- “the exclusive right to display the activities of

a State”, relying on that well-known authority

on transboundary harm, the Island of Palmas
880
case;

- “the right to exercise permanent sovereignty

over the natural resources .... within its

878
ER, paras. 5.2, 5.14. Ecuador accuses Colombia of fabricating the
hermetic thesis without citation, but the passsage cited by Colombia (EM,
para 7.2, cited CCM, para 8.34) does carry that implication. It is good that it
has been withdrawn, but its withdrawal leaves Ecuador’s territorial
sovereignty claim legless, without visible means of support.
879 ER, para. 5.9.
880 ER, para. 5.10, citing (1928) 2 UNRIAA 839.

422 remains true even if minute amounts of spray

mixture drift across the border. Elsewhere, it

may be noted, Ecuador disclaims the “hermetic”

theory of absolute sovereignty whi ch its earlier
878
pleadings had implied.

• Ecuador seeks to convert Article 2 of the 1988

Narcotics Convention – an endorsement of

effective anti-drugs campaigns such as PECIG –

into a guarantee against aerial spraying. 879 This

perverse interpretation is discussed briefly below.

• Ecuador goes on to rely on a panoply of

irrelevant rules, displaying a tendency to throw a

textbook at the spraying program rather than
engaging in the actual arguments. Rules relied

on include:

- “the exclusive right to display the activities of

a State”, relying on that well-known authority

on transboundary harm, the Island of Palmas
880
case;

- “the right to exercise permanent sovereignty

over the natural resources .... within its

878
ER, paras. 5.2, 5.14. Ecuador accuses Colombia of fabricating the
hermetic thesis without citation, but the passsage cited by Colombia (EM,
para 7.2, cited CCM, para 8.34) does carry that implication. It is good that it
has been withdrawn, but its withdrawal leaves Ecuador’s territorial
sovereignty claim legless, without visible means of support.
879 ER, para. 5.9.
880 ER, para. 5.10, citing (1928) 2 UNRIAA 839. has, in its Counter -Memorial and in this
Rejoinder, provided a substantial and

substantiated account of the PECIG, supported by

significant scientific expertise. It is of course for

the Court to appraise this body of evidence, but

in doing so it will not be aided by rhetorical

claims about “disablement”.

4.113. As was argued in the Counter -Memorial, a case
concerned with alleged harm caused by spray drift is not to be

resolved by general deductions from sovereignty or territorial

integrity.886 That core point is never satisfactorily addressed by

Ecuador in its Reply and barely needs repeating. If no

significant or material damage is done to a state, its territory or

its people by incidental drift of a lawful substance, the case is

not affected or strengthened by repeating the allegation in terms
of a failure to respect territorial sovereignty or any o ther of the

panoply of rules which Ecuador invokes. The essential dispute

between the parties concerns questions of fact, and related

questions of causation. There is , correspondingly, little to be

said about the law.

(2) THE SOURCE OF OBLIGATION

4.114. Colombia has already set out in the Counter -Memorial

its arguments as to why Article 2(2) of the 1988 Narcotics
Convention does not make respect of the principles of sovereign

equality and territorial equality obligations which must be

886 CCM, paras. 8.32-8.40.

424 has, in its Counter -Memorial and in this
Rejoinder, provided a substantial and

substantiated account of the PECIG, supported by

significant scientific expertise. It is of course for

the Court to appraise this body of evidence, but

in doing so it will not be aided by rhetorical

claims about “disablement”.

4.113. As was argued in the Counter -Memorial, a case
concerned with alleged harm caused by spray drift is not to be

resolved by general deductions from sovereignty or territorial

integrity.886 That core point is never satisfactorily addressed by

Ecuador in its Reply and barely needs repeating. If no

significant or material damage is done to a state, its territory or

its people by incidental drift of a lawful substance, the case is

not affected or strengthened by repeating the allegation in terms
of a failure to respect territorial sovereignty or any o ther of the

panoply of rules which Ecuador invokes. The essential dispute

between the parties concerns questions of fact, and related

questions of causation. There is , correspondingly, little to be

said about the law.

(2) THE SOURCE OF OBLIGATION

4.114. Colombia has already set out in the Counter -Memorial

its arguments as to why Article 2(2) of the 1988 Narcotics
Convention does not make respect of the principles of sovereign

equality and territorial equality obligations which must be

886 CCM, paras. 8.32-8.40.4.116. In the event, the Court’s reasoning in Pulp Mills as to
both Articles 1 and 14 provides support for Colombia’s

arguments as to non-incorporation of obligations under Article 2
891
(2) and Article 14(2) of the 1988 Narcotics Convention. The

Court expressly rejected equivalent Argentine arguments that

Article 1 or 41 of the 1975 Stat ute “incorporated” other
environmental treaty obligations. As regards Article 41, it said:

“However, Article 41 does not incorporate
international agreements as such into the 1975
Statute but rather sets obligations for the parties to
exercise their regulatory powers, in conformity with
applicable international agreements, for the

protection and preservation of the aquatic
environment of the River Uruguay. Under Article
41 (b) the existing requirements for preventing
water pollution and the severity of the penalties are
not to be reduced. Finally, paragraph (c) of Article

41 concerns the obligation to inform the other party
of plans to prescribe rules on water pollution.

The Court concludes that there is no basis in the text
of Article 41 of the 1975 Sta tute for the contention
that it constitutes a ‘referral clause’. Consequently,
the various multilateral conventions relied on by
Argentina are not, as such, incorporated in the 1975

Statute. For that reason, they do not fall within the
scope of the compr omissory clause and therefore
the Court has no jurisdiction to rule whether
Uruguay has complied with its obligations
thereunder.” 892

The incorporation argument in Pulp Mills would have failed on
the merits if it had not failed on jurisdiction, and for the same

891
892 ER, para. 6.14.
Pulp Mills on the River Uruguay (Argentina v Uruguay) , ICJ
Reports 2010, paras. 62-3.

4264.116. In the event, the Court’s reasoning in Pulp Mills as to
both Articles 1 and 14 provides support for Colombia’s

arguments as to non-incorporation of obligations under Article 2
891
(2) and Article 14(2) of the 1988 Narcotics Convention. The

Court expressly rejected equivalent Argentine arguments that

Article 1 or 41 of the 1975 Stat ute “incorporated” other
environmental treaty obligations. As regards Article 41, it said:

“However, Article 41 does not incorporate
international agreements as such into the 1975
Statute but rather sets obligations for the parties to
exercise their regulatory powers, in conformity with
applicable international agreements, for the

protection and preservation of the aquatic
environment of the River Uruguay. Under Article
41 (b) the existing requirements for preventing
water pollution and the severity of the penalties are
not to be reduced. Finally, paragraph (c) of Article

41 concerns the obligation to inform the other party
of plans to prescribe rules on water pollution.

The Court concludes that there is no basis in the text
of Article 41 of the 1975 Sta tute for the contention
that it constitutes a ‘referral clause’. Consequently,
the various multilateral conventions relied on by
Argentina are not, as such, incorporated in the 1975

Statute. For that reason, they do not fall within the
scope of the compr omissory clause and therefore
the Court has no jurisdiction to rule whether
Uruguay has complied with its obligations
thereunder.” 892

The incorporation argument in Pulp Mills would have failed on
the merits if it had not failed on jurisdiction, and for the same

891
892 ER, para. 6.14.
Pulp Mills on the River Uruguay (Argentina v Uruguay) , ICJ
Reports 2010, paras. 62-3.prevent transboundary environmental harm to Ecuador. In

particular in Chapter 6 of its Reply, 893 Ecuador complains

successively that:

• Colombia did not carry out a transboundary
894
EIA, and failed to comply even with its own
895
EMP;

• Colombia failed to prevent significant harm to

the population of Ecuador by “deposition of toxic

herbicides over Ecuadorian territory”; 896

• Colombia failed to apply the precautionary
897
principle;

• Colombia failed to give prior notification of

“spraying operations likely to affect Ecuador”; 898

• Colombia failed to cooperate with Ecuador and

failed to monitor the impact of its spray p rogram
899
on Ecuador.

4.120. The first of these complaints has already been dealt with.

Colombia did assess the impact of its proposed program, to the

extent required by its own law – the standard laid down by this

893 ER, paras. 6.72-6.74 is an interpolated section dealing with buffer
zones. It is responded to briefly in Chapter 5 below.
894
895 ER, paras. 6.29-6.51.
896 ER, paras. 6.68-6.71.
897 ER, paras. 6.52-6.60.
ER, paras. 6.51-6.65.
898 ER, paras. 6.66-6.67.
899 ER, paras. 6.66-6.67.

428prevent transboundary environmental harm to Ecuador. In

particular in Chapter 6 of its Reply, 893 Ecuador complains

successively that:

• Colombia did not carry out a transboundary
894
EIA, and failed to comply even with its own
895
EMP;

• Colombia failed to prevent significant harm to

the population of Ecuador by “deposition of toxic

herbicides over Ecuadorian territory”; 896

• Colombia failed to apply the precautionary
897
principle;

• Colombia failed to give prior notification of

“spraying operations likely to affect Ecuador”; 898

• Colombia failed to cooperate with Ecuador and

failed to monitor the impact of its spray p rogram
899
on Ecuador.

4.120. The first of these complaints has already been dealt with.

Colombia did assess the impact of its proposed program, to the

extent required by its own law – the standard laid down by this

893 ER, paras. 6.72-6.74 is an interpolated section dealing with buffer
zones. It is responded to briefly in Chapter 5 below.
894
895 ER, paras. 6.29-6.51.
896 ER, paras. 6.68-6.71.
897 ER, paras. 6.52-6.60.
ER, paras. 6.51-6.65.
898 ER, paras. 6.66-6.67.
899 ER, paras. 6.66-6.67.metres or more – is straightforwardly false, as shown in Chapter

2. As t o the latter claim, the lack of “countervailing public

benefit”, Ecuador has accepted through the 1988 Convention the

principle of collective interest and collective support in the fight

against drug tra fficking, including through the use of aerial
904
spraying. It is not open to it now to deny the principles

underpinning the Convention on a “not in my backyard” basis,

and this would be true even if the impacts in Ecuador’s backyard

were more significant than has been shown to be the case.

4.123. Ecuador argues that Colombia failed to apply the
905
precautionary principle. It fails signally to comprehend the

point made in the Counter -Memorial, which was that the

precautionary principle or approach is not a free -standing

autonomous obligation but a directive or guideline as to the

manner in which existing substantive obligations should be
906
applied. Indeed, how can something still widely described as

an “approach” be anything else: an approach is an approach to

something else, and is necessarily relative. But again the point

does not arise: Ecuador is reduced to the absurd assertion that

“there can be no doubt that the kind of transboundary harm

suffered by Ecuador amounts to an interference with or denial or
907
the right to sustainable development”. In fact there is no
evidence at all that the spray program has had the slightest

impact on the sustainable development of the relevant

904
905 CCM, paras. 3.40-3.64.
ER, paras. 6.52-6.65.
906 CCM, para. 8.57.
907 ER, para. 6.63.

430metres or more – is straightforwardly false, as shown in Chapter

2. As t o the latter claim, the lack of “countervailing public

benefit”, Ecuador has accepted through the 1988 Convention the

principle of collective interest and collective support in the fight

against drug tra fficking, including through the use of aerial
904
spraying. It is not open to it now to deny the principles

underpinning the Convention on a “not in my backyard” basis,

and this would be true even if the impacts in Ecuador’s backyard

were more significant than has been shown to be the case.

4.123. Ecuador argues that Colombia failed to apply the
905
precautionary principle. It fails signally to comprehend the

point made in the Counter -Memorial, which was that the

precautionary principle or approach is not a free -standing

autonomous obligation but a directive or guideline as to the

manner in which existing substantive obligations should be
906
applied. Indeed, how can something still widely described as

an “approach” be anything else: an approach is an approach to

something else, and is necessarily relative. But again the point

does not arise: Ecuador is reduced to the absurd assertion that

“there can be no doubt that the kind of transboundary harm

suffered by Ecuador amounts to an interference with or denial or
907
the right to sustainable development”. In fact there is no
evidence at all that the spray program has had the slightest

impact on the sustainable development of the relevant

904
905 CCM, paras. 3.40-3.64.
ER, paras. 6.52-6.65.
906 CCM, para. 8.57.
907 ER, para. 6.63.this “might be true if the potential harm were not as significant
as it is in this case, or if it did not reach a level that mounted to a

threat to human health and livelihood”. 914But in the very same

paragraph it contradicts itself, seeking a response from

Colombia (on its own territory) that would “eliminate the risk of
915
transboundary harm to Ecuador”. In fact however , such

calculations do not arise: the aerial spraying program i s

conducted with all care in Colombian territory, and the
incidental, occasional and limited amounts of spray drift in no

way affects Ecuad orian populations or the environment (see

Chapters 2 and 3). There is thus no foothold for Ecuador’s

argument of breach of norms of international environmental law.

E. Ecuador’s Claims based on Human Rights and the

Rights of Indigenous Peoples

(1) INTRODUCTION

4.127. In Chapter 7 of the Reply, Ecuador attempts to rework its

earlier allegations of violation by Colombia of the human rights

of individuals and the rights of indigenous peoples within
Ecuador as a result of the aerial spraying program , but its

essential premise remains: the violations of human and

indigenous rights are the consequence of the alleged damages

caused by the spraying.

4.128. It is striking that, in the Reply, Ecuador no longer alleges

that the aerial spraying program has resulted in violations of the

914 ER, paras. 6.59, citing CCM, paras 8.555-8.56.
915 ER, paras. 6.59 (emphasis added).

432this “might be true if the potential harm were not as significant
as it is in this case, or if it did not reach a level that mounted to a

threat to human health and livelihood”. 914But in the very same

paragraph it contradicts itself, seeking a response from

Colombia (on its own territory) that would “eliminate the risk of
915
transboundary harm to Ecuador”. In fact however , such

calculations do not arise: the aerial spraying program i s

conducted with all care in Colombian territory, and the
incidental, occasional and limited amounts of spray drift in no

way affects Ecuad orian populations or the environment (see

Chapters 2 and 3). There is thus no foothold for Ecuador’s

argument of breach of norms of international environmental law.

E. Ecuador’s Claims based on Human Rights and the

Rights of Indigenous Peoples

(1) INTRODUCTION

4.127. In Chapter 7 of the Reply, Ecuador attempts to rework its

earlier allegations of violation by Colombia of the human rights

of individuals and the rights of indigenous peoples within
Ecuador as a result of the aerial spraying program , but its

essential premise remains: the violations of human and

indigenous rights are the consequence of the alleged damages

caused by the spraying.

4.128. It is striking that, in the Reply, Ecuador no longer alleges

that the aerial spraying program has resulted in violations of the

914 ER, paras. 6.59, citing CCM, paras 8.555-8.56.
915 ER, paras. 6.59 (emphasis added).For the same reasons, the striking concordance of the witnesses

as to the supposed effects of the spraying on their health and on

plants, which Ecuador relies upon as proving their allegations,
should be treated with suspicion. In short, insofar as it alleges

serious harm done by the spraying program, their evidence

should not be accepted. As set out in Chapter 3, the allegations

of the witnesses as to the alleged effect of the spraying on their
crops, animals and health are simply inconsistent with the

scientific data as to the effects of the components of the spray

mixture. Even if the witnesses had been directly oversprayed
(which, as the spray flight data conclusively shows, was not the

case), the spray mixture could not have caused the effects

alleged. A fortiori, given Ecuador’s case that the effects

allegedly experienced resulted from the effects of drift at places
located, in the case of some of the witnesses, at considerable

distances from the actual spraying events, the various allegations

of the witnesses in this regard simply cannot be true.

4.131. On the basis of the evidence, it is clear that the effects
alleged by the witnes ses could not have occurred, and their

evidence should not be believed. In this Chapter, Colombia

deals with the legal arguments put forward by Ecuador in

response to Colombia’s position in the Counter -Memorial. But
– it can hardly be said too often – this is an abstract exercise.

State responsibility in the circumstances of the present case

depends on proof of present harm. That proof failing, so do

Ecuador’s claims of breach of rights.

434For the same reasons, the striking concordance of the witnesses

as to the supposed effects of the spraying on their health and on

plants, which Ecuador relies upon as proving their allegations,
should be treated with suspicion. In short, insofar as it alleges

serious harm done by the spraying program, their evidence

should not be accepted. As set out in Chapter 3, the allegations

of the witnesses as to the alleged effect of the spraying on their
crops, animals and health are simply inconsistent with the

scientific data as to the effects of the components of the spray

mixture. Even if the witnesses had been directly oversprayed
(which, as the spray flight data conclusively shows, was not the

case), the spray mixture could not have caused the effects

alleged. A fortiori, given Ecuador’s case that the effects

allegedly experienced resulted from the effects of drift at places
located, in the case of some of the witnesses, at considerable

distances from the actual spraying events, the various allegations

of the witnesses in this regard simply cannot be true.

4.131. On the basis of the evidence, it is clear that the effects
alleged by the witnes ses could not have occurred, and their

evidence should not be believed. In this Chapter, Colombia

deals with the legal arguments put forward by Ecuador in

response to Colombia’s position in the Counter -Memorial. But
– it can hardly be said too often – this is an abstract exercise.

State responsibility in the circumstances of the present case

depends on proof of present harm. That proof failing, so do

Ecuador’s claims of breach of rights.be possible that their human rights be violated. Rather, it related

to t he extent to which human rights obligations are to be

permitted effectively to be determinative of the content of
obligations in other areas of international law which are, in

principle, separate and autonomous. More specifically,

Colombia’s argument conce rns the extent to which actions

which are otherwise lawful under both international law and
Colombian law should nevertheless be considered unlawful

because of their alleged incidental impact on the human rights of

individuals within Ecuador.

4.135. The point is simple and can be briefly made. Human

rights obligations, although a fundamental part of international

law, cannot and should not be interpreted in such an expansive

fashion as effectively to occupy the entire field and distort the
content of other oblig ations, carefully worked out and carefully

balanced. That Ecuador should so obviously misrepresent what

Colombia wrote shows its desperation in the face of the facts.

(3) THE TERRITORIALITY OF HUMAN RIGHTS OBLIGATIONS

4.136. Section III of Chapter 7 of Ecuador’s Reply is devoted to

the so-called “territoriality” of human rights obligations. In this

regard, Ecuador appears to take a one -size fits all view to the

applicability and scope of human rights obligations, rather than
paying attention to the specific lang uage of the treaties which it

alleges are applicable. In this regard, it places considerable

reliance on the notion of a “common legal space” and an

“international public order of human rights at the regional

436be possible that their human rights be violated. Rather, it related

to t he extent to which human rights obligations are to be

permitted effectively to be determinative of the content of
obligations in other areas of international law which are, in

principle, separate and autonomous. More specifically,

Colombia’s argument conce rns the extent to which actions

which are otherwise lawful under both international law and
Colombian law should nevertheless be considered unlawful

because of their alleged incidental impact on the human rights of

individuals within Ecuador.

4.135. The point is simple and can be briefly made. Human

rights obligations, although a fundamental part of international

law, cannot and should not be interpreted in such an expansive

fashion as effectively to occupy the entire field and distort the
content of other oblig ations, carefully worked out and carefully

balanced. That Ecuador should so obviously misrepresent what

Colombia wrote shows its desperation in the face of the facts.

(3) THE TERRITORIALITY OF HUMAN RIGHTS OBLIGATIONS

4.136. Section III of Chapter 7 of Ecuador’s Reply is devoted to

the so-called “territoriality” of human rights obligations. In this

regard, Ecuador appears to take a one -size fits all view to the

applicability and scope of human rights obligations, rather than
paying attention to the specific lang uage of the treaties which it

alleges are applicable. In this regard, it places considerable

reliance on the notion of a “common legal space” and an

“international public order of human rights at the regionalconfirms that the notion of jurisdiction has to be given meaning

and that jurisdiction is essentially territorial; it is o nly

exceptionally and in circumscribed circumstances that the

obligations of States parties will be held to apply

extraterritorially, and this irrespective of whether the location in
which they are acting is inside or outside the so -called espace

juridique of the European Convention.

4.140. In particular, Ecuador appears to infer an argument a

contrario from the decision of the European Court in Banković

v. Belgium and others. It maintains that the principal reason why
the Court denied that the respondent States had jurisdiction in

relation to the bombing of the Serbian Radio- Television

headquarters in Belgrade was that Yugoslavia did not belong to
920
the Convention’s “espace juridique” and not, as explained by

Colombia in its Counter-Memorial, that none of the exce ptional
circumstances for the existence of extraterritorial jurisdiction

existed in that particular case.

4.141. By contrast, Ecuador argues that, since Ecuador and

Colombia both belong to the American Convention’s “common

legal space”, the criteria set out by t he European Court in
Banković for the determination of whether a State exercises

“jurisdiction” do not apply. This reasoning is based on a

misunderstanding of the case- law of the European Court of

Human Rights, which illustrates clearly that (1) the fact that

conduct allegedly in breach of the Convention has taken place
outside the “legal space” of the Convention is not determinative

920
ER, para. 7.30.

438confirms that the notion of jurisdiction has to be given meaning

and that jurisdiction is essentially territorial; it is o nly

exceptionally and in circumscribed circumstances that the

obligations of States parties will be held to apply

extraterritorially, and this irrespective of whether the location in
which they are acting is inside or outside the so -called espace

juridique of the European Convention.

4.140. In particular, Ecuador appears to infer an argument a

contrario from the decision of the European Court in Banković

v. Belgium and others. It maintains that the principal reason why
the Court denied that the respondent States had jurisdiction in

relation to the bombing of the Serbian Radio- Television

headquarters in Belgrade was that Yugoslavia did not belong to
920
the Convention’s “espace juridique” and not, as explained by

Colombia in its Counter-Memorial, that none of the exce ptional
circumstances for the existence of extraterritorial jurisdiction

existed in that particular case.

4.141. By contrast, Ecuador argues that, since Ecuador and

Colombia both belong to the American Convention’s “common

legal space”, the criteria set out by t he European Court in
Banković for the determination of whether a State exercises

“jurisdiction” do not apply. This reasoning is based on a

misunderstanding of the case- law of the European Court of

Human Rights, which illustrates clearly that (1) the fact that

conduct allegedly in breach of the Convention has taken place
outside the “legal space” of the Convention is not determinative

920
ER, para. 7.30.where the State in fact has effective control over a defined area

outside its own territory. 922

4.144. Accordingly, the consistent case -law of the European

Court demonstrates that, contrary to Ecuador’s argument, the

desirability of avoiding “vacuums” in the European system of

human rights protection has not been enough for the European
Court to bypass the requirement in Article 1 of the European

Convention that a State must exercise “jurisdiction” for its

responsibility under the Convention to be engaged.

4.145. Ecuador argues that the existence of a common legal

space requires by implication that all States are under an

obligation to ensure respect for human rights throughout the
region, even in respect of individuals who are not under their

jurisdiction. That argument is completely unsupported by

authority, and were it to be adopted would subvert the law of

territory, jurisdiction and responsibility of the states on wh ich

the Convention system depends.

4.146. The extracts from the jurispru dence of the Inter -
American Commission and Inter-American Court relied upon by

Ecuador 923 do not establish its thesis that the existence of a

common legal space in any way displaces the applicability of

the primarily territorial interpretation of the notion of

jurisdiction. In particular, each of the passages from the

Preamble of the American Convention cited at para. 7.32 of the

922 Al-Skeini and Others v. The United Kingdom [GC] (A pp. no.

92321/07), Judgement of 7 July 2011, paras. 133 -140.
ER, paras. 7.37-7.45.

440where the State in fact has effective control over a defined area

outside its own territory. 922

4.144. Accordingly, the consistent case -law of the European

Court demonstrates that, contrary to Ecuador’s argument, the

desirability of avoiding “vacuums” in the European system of

human rights protection has not been enough for the European
Court to bypass the requirement in Article 1 of the European

Convention that a State must exercise “jurisdiction” for its

responsibility under the Convention to be engaged.

4.145. Ecuador argues that the existence of a common legal

space requires by implication that all States are under an

obligation to ensure respect for human rights throughout the
region, even in respect of individuals who are not under their

jurisdiction. That argument is completely unsupported by

authority, and were it to be adopted would subvert the law of

territory, jurisdiction and responsibility of the states on wh ich

the Convention system depends.

4.146. The extracts from the jurispru dence of the Inter -
American Commission and Inter-American Court relied upon by

Ecuador 923 do not establish its thesis that the existence of a

common legal space in any way displaces the applicability of

the primarily territorial interpretation of the notion of

jurisdiction. In particular, each of the passages from the

Preamble of the American Convention cited at para. 7.32 of the

922 Al-Skeini and Others v. The United Kingdom [GC] (A pp. no.

92321/07), Judgement of 7 July 2011, paras. 133 -140.
ER, paras. 7.37-7.45.rise to an exercise of extra- territorial jurisdiction. The essential

basis of that assertion would appear to be a notion of “cause and

effect”; in other words, the very fact that Colombia has allegedly

infringed certain human rights of individuals in Ecuadorian

territory means that it has exercised jurisdiction over those

individuals for the purpose of application of the human rights
treaties to which it is a Party.

4.149. As noted in the Counter -Memorial, within the European

system, such a “cause and effect” notion of juris diction was

explicitly rejected by the European Court in Banković, the

European Court noting that

“the applicants’ notion of jurisdiction equates the
determination of whether an individual falls within

the jurisdiction of a Contracting State with the
question of whether that person can be considered to
be a victim of a violation of rights guaranteed by the
Convention. These are separate and distinct
admissibility conditions, each of which has to be

satisfied in the afore -mentioned order, before an
individual can invoke the Convention provisions
against a Contracting State.” 925

That such jurisdictional reasoning is impermissible has now

been confirmed by the Grand Chamber of the European Court in

Al-Skeini: there is a prior requirement of either personal control

over individuals, or effective control over an area of territory in

925
Banković, para.75; Cf. CCM, para. 9.31.

442rise to an exercise of extra- territorial jurisdiction. The essential

basis of that assertion would appear to be a notion of “cause and

effect”; in other words, the very fact that Colombia has allegedly

infringed certain human rights of individuals in Ecuadorian

territory means that it has exercised jurisdiction over those

individuals for the purpose of application of the human rights
treaties to which it is a Party.

4.149. As noted in the Counter -Memorial, within the European

system, such a “cause and effect” notion of juris diction was

explicitly rejected by the European Court in Banković, the

European Court noting that

“the applicants’ notion of jurisdiction equates the
determination of whether an individual falls within

the jurisdiction of a Contracting State with the
question of whether that person can be considered to
be a victim of a violation of rights guaranteed by the
Convention. These are separate and distinct
admissibility conditions, each of which has to be

satisfied in the afore -mentioned order, before an
individual can invoke the Convention provisions
against a Contracting State.” 925

That such jurisdictional reasoning is impermissible has now

been confirmed by the Grand Chamber of the European Court in

Al-Skeini: there is a prior requirement of either personal control

over individuals, or effective control over an area of territory in

925
Banković, para.75; Cf. CCM, para. 9.31.(4) E CUADOR ’S ARGUMENT BASED ON THE OBLIGATION TO
“RESPECT AND ENSURE ”

4.152. Finally, i n an attempt to bypass the requirement of

jurisdiction, Ecuador puts forward a distinction between the

obligations contained in human rights treaties. It argues that the

positive obligation to “ensure” the enjoyment of fundamental

rights applies only in relation to individuals within the

jurisdiction of the State, whilst the obligation to “respect” is not

so limited and applies regardless of the existence of any
jurisdictional link between the State and the individual.

Illustrative is its assertion that “Even if indigenous peoples

within Ecuador are not subject to the jurisdiction of Colombia,

Colombia nevertheless has an obligation to respect their

rights”.928

4.153. Ecuador here relies on a particular reading of Article 1 of

the American Convention, which is untenable in light of the

case-law of the Inter-American human rights monitoring bodies.

For instance, in a passage cited by Ecuador itself in its Reply,

the Inter-American Commission noted in Alejandre v. Cuba that
“[...] all the American states are obligated to respect the

protected rights of any person subject to their jurisdiction ”.929

Although that statement was admittedly made in the context of

assessment of the scope of the obligations under the American

Declaration, which contains no express clause dealing with its

scope of application, it applies a fortiori to the obligations under

the American Convention.

928 ER, para. 7.31
929 Alejandre v. Cuba, para. 23, quoted at Reply, para. 7.37.

444(4) E CUADOR ’S ARGUMENT BASED ON THE OBLIGATION TO
“RESPECT AND ENSURE ”

4.152. Finally, i n an attempt to bypass the requirement of

jurisdiction, Ecuador puts forward a distinction between the

obligations contained in human rights treaties. It argues that the

positive obligation to “ensure” the enjoyment of fundamental

rights applies only in relation to individuals within the

jurisdiction of the State, whilst the obligation to “respect” is not

so limited and applies regardless of the existence of any
jurisdictional link between the State and the individual.

Illustrative is its assertion that “Even if indigenous peoples

within Ecuador are not subject to the jurisdiction of Colombia,

Colombia nevertheless has an obligation to respect their

rights”.928

4.153. Ecuador here relies on a particular reading of Article 1 of

the American Convention, which is untenable in light of the

case-law of the Inter-American human rights monitoring bodies.

For instance, in a passage cited by Ecuador itself in its Reply,

the Inter-American Commission noted in Alejandre v. Cuba that
“[...] all the American states are obligated to respect the

protected rights of any person subject to their jurisdiction ”.929

Although that statement was admittedly made in the context of

assessment of the scope of the obligations under the American

Declaration, which contains no express clause dealing with its

scope of application, it applies a fortiori to the obligations under

the American Convention.

928 ER, para. 7.31
929 Alejandre v. Cuba, para. 23, quoted at Reply, para. 7.37. 932
region. These were fully dealt with in the Counter -
933
Memorial and there is little to add.

4.156. Again the single most important point is Ecuador’s

assertion that “the daily life of indigenous peoples living on its

side of the border had been particula rly affected by Colombia;
934
aerial spraying”. As was demonstrated in Chapter 3, there is

simply no evidence of affect, still less particular affect on
935
indigenous peoples. That being so there is not even an

arguable claim based on indigenous rights.

4.157. Ecuador also makes the following points:

• Indigenous peoples have a special status under

international law; 936

• There is evidence of harm, including “cultural
937
harm” and harm to property;

• There is no requirement that indigenous peoples

be targeted for their rightsto be infringed; 938

• Colombia has special obligations towards

indigenous peoples in Ecuador, including
939
consultation.

932
933 ER, paras. 7.53-7.79.
934 CCM, paras. 9.153-9.169.
935 ER, para. 7.53.
936 See above, Chapter 3, Sections C (3) (b) and (d).
ER, paras. 7.54-7.59.
937 ER, paras. 7.60-7.66.
938 ER, paras .7.67-7.68.
939 ER, paras. 7.69-7.79.

446 932
region. These were fully dealt with in the Counter -
933
Memorial and there is little to add.

4.156. Again the single most important point is Ecuador’s

assertion that “the daily life of indigenous peoples living on its

side of the border had been particula rly affected by Colombia;
934
aerial spraying”. As was demonstrated in Chapter 3, there is

simply no evidence of affect, still less particular affect on
935
indigenous peoples. That being so there is not even an

arguable claim based on indigenous rights.

4.157. Ecuador also makes the following points:

• Indigenous peoples have a special status under

international law; 936

• There is evidence of harm, including “cultural
937
harm” and harm to property;

• There is no requirement that indigenous peoples

be targeted for their rightsto be infringed; 938

• Colombia has special obligations towards

indigenous peoples in Ecuador, including
939
consultation.

932
933 ER, paras. 7.53-7.79.
934 CCM, paras. 9.153-9.169.
935 ER, para. 7.53.
936 See above, Chapter 3, Sections C (3) (b) and (d).
ER, paras. 7.54-7.59.
937 ER, paras. 7.60-7.66.
938 ER, paras .7.67-7.68.
939 ER, paras. 7.69-7.79.4.159. As to the second point, in Chapter 2, it was shown that

the spray mixture cannot cause the damage alleged by Ecuador.
As to the lack of hard evidence of harm, this has already be en

dealt with in Chapter 3. In fact, it was shown that, despite the

false assertions of the witness statements – including those from

members of indigenous communities – to the contrary, there was

no spraying over Ecuadorian territory and therefore, much less

over the territories of the indigenous communities in Ecuador.

Furthermore, satellite imagery shows that there were no changes

in vegetation cover in Ecuadorian territory following the

sprayings in Colombia and, therefore, the alleged damages to
crops in Ecuador did not occur . In sum, there is no credible

evidence of harm – let alone cultural dissolution or damage to

property – from spray drift. Indeed, in light of the facts

including the scientific evidence, the suggestion is fantastic.

4.160. As to the th ird point, the issue of “targeting”, the
941
remarks made already on this subject apply here. Ecuador

accepts that “the spraying is not aimed or targeted at indigenous

peoples” but argues that Colombia “nevertheless had an

obligation to take adequate measure s to minimise their
impact”. 942 Colombia does not suggest that indigenous rights

can only be infringed by action deliberately targeting an

indigenous group as such – although a measure aimed at a group

to its disadvantage is more likely to be a breach that a measure

of general application. The point is quite simply that

941 See above, Section E (2) “ Targeting”: Ecuador’s incomprehension
of Colombia’s case.
942 ER, para. 7.68.

4484.159. As to the second point, in Chapter 2, it was shown that

the spray mixture cannot cause the damage alleged by Ecuador.
As to the lack of hard evidence of harm, this has already be en

dealt with in Chapter 3. In fact, it was shown that, despite the

false assertions of the witness statements – including those from

members of indigenous communities – to the contrary, there was

no spraying over Ecuadorian territory and therefore, much less

over the territories of the indigenous communities in Ecuador.

Furthermore, satellite imagery shows that there were no changes

in vegetation cover in Ecuadorian territory following the

sprayings in Colombia and, therefore, the alleged damages to
crops in Ecuador did not occur . In sum, there is no credible

evidence of harm – let alone cultural dissolution or damage to

property – from spray drift. Indeed, in light of the facts

including the scientific evidence, the suggestion is fantastic.

4.160. As to the th ird point, the issue of “targeting”, the
941
remarks made already on this subject apply here. Ecuador

accepts that “the spraying is not aimed or targeted at indigenous

peoples” but argues that Colombia “nevertheless had an

obligation to take adequate measure s to minimise their
impact”. 942 Colombia does not suggest that indigenous rights

can only be infringed by action deliberately targeting an

indigenous group as such – although a measure aimed at a group

to its disadvantage is more likely to be a breach that a measure

of general application. The point is quite simply that

941 See above, Section E (2) “ Targeting”: Ecuador’s incomprehension
of Colombia’s case.
942 ER, para. 7.68.4.162. Finally, Colombia would note that Ecuador has not

responded to the key point, that the w ell-known problems of the

indigenous peoples of the region – whether they live 500 metres
946
or 50 km from the border –are entirely its own responsibility.

To an external observer those problems do not get worse as one

approaches the border . They have nothing to do with spray
drift.

F. Conclusions

4.163. For the reasons set out above, the legal propositions on

which Ecuador relies to found its claims based on: Colombia’s

alleged failures to exercise due diligence and comply with its

assessment obligation; on the alle ged violation of territorial
sovereignty; on the alleged breach of international

environmental law; and its human and indigenous rights case –

remote from the facts as they are, in particular, because the

spraying could not have caused the adverse effects alleged in

Ecuador as shown in Chapters 2 and 3 – do not avail it. In

particular:

would be oversprayed to prior consultation. The Court clearly stated that the
right to prior consultation, provided for iConvention 169, does not
entail the right of indigenous and tribal peoples to veto the legislative and
administrative measures that affect them. For further detail see CR, Vol. II,
Annex 7, Zapata Report, paras. 55, 60.6. See also, CR, Vol. V, Annex 43:
Minutes and Orders of prior consultation processes with indigenous
communities, in compliance with the Colombian Constitutional Court’s

946ing SU-383.
CCM, para. 9.173.

4504.162. Finally, Colombia would note that Ecuador has not

responded to the key point, that the w ell-known problems of the

indigenous peoples of the region – whether they live 500 metres
946
or 50 km from the border –are entirely its own responsibility.

To an external observer those problems do not get worse as one

approaches the border . They have nothing to do with spray
drift.

F. Conclusions

4.163. For the reasons set out above, the legal propositions on

which Ecuador relies to found its claims based on: Colombia’s

alleged failures to exercise due diligence and comply with its

assessment obligation; on the alle ged violation of territorial
sovereignty; on the alleged breach of international

environmental law; and its human and indigenous rights case –

remote from the facts as they are, in particular, because the

spraying could not have caused the adverse effects alleged in

Ecuador as shown in Chapters 2 and 3 – do not avail it. In

particular:

would be oversprayed to prior consultation. The Court clearly stated that the
right to prior consultation, provided for iConvention 169, does not
entail the right of indigenous and tribal peoples to veto the legislative and
administrative measures that affect them. For further detail see CR, Vol. II,
Annex 7, Zapata Report, paras. 55, 60.6. See also, CR, Vol. V, Annex 43:
Minutes and Orders of prior consultation processes with indigenous
communities, in compliance with the Colombian Constitutional Court’s

946ing SU-383.
CCM, para. 9.173.(d) In 2004 the highest administrative tribunal of

Colombia, the Council of State, dismissed an

action brought against the Ministry of the

Environment seeking discontinuance of the aerial

spraying program on the basis of an alleged

transgression of environmental rights and
obligations. This is dispositive of the lawfulness

of the Program under Colombian law.

(e) The assessments carried out by Colombia
concluded that there was no risk of significant

harm from the aerial spraying activities. In other

words, Colombia did conduct an EIA prior to the
ECUADOR
start of the spraying operations in the border area SOVEREIGNTY

with Ecuador, and thereafter it continued to

perform all the necessary monitoring activities to
ensure compliance with the EMP, built on the

basis of the EIA. By doing so, Colombia fully

complied with its obligations of due diligence to

take all reasonable steps to prevent any possible

impact on human health and the environment.

(f) Colombia has conducted the PECIG with due

diligence, having devoted significant resources to

reviewing the potential environmental impact of
ECUADOR
the program and ascertaining whether it ENVIRONMENTAL
presented any significant risks to human and

animal health and the environment.

947

Reports 2010, para. 151.

452(d) In 2004 the highest administrative tribunal of

Colombia, the Council of State, dismissed an

action brought against the Ministry of the

Environment seeking discontinuance of the aerial

spraying program on the basis of an alleged

transgression of environmental rights and
obligations. This is dispositive of the lawfulness

of the Program under Colombian law.

(e) The assessments carried out by Colombia
concluded that there was no risk of significant

harm from the aerial spraying activities. In other

words, Colombia did conduct an EIA prior to the
ECUADOR
start of the spraying operations in the border area SOVEREIGNTY

with Ecuador, and thereafter it continued to

perform all the necessary monitoring activities to
ensure compliance with the EMP, built on the

basis of the EIA. By doing so, Colombia fully

complied with its obligations of due diligence to

take all reasonable steps to prevent any possible

impact on human health and the environment.

(f) Colombia has conducted the PECIG with due

diligence, having devoted significant resources to

reviewing the potential environmental impact of
ECUADOR
the program and ascertaining whether it ENVIRONMENTAL
presented any significant risks to human and

animal health and the environment.

947

Reports 2010, para. 151. (i) In fact Colombia did assess the impact of its

proposed program, to the extent required by its
own law – the standard laid down by this Court

in Pulp Mills.948

(j) As to the remainder of these claims the necessary

assumption underlying them is, again, that

significant transboundary harm, above the
relevant threshold, was caused by spraying

activities in Colombia, viz., by incidental drift of

spray residues into Ecuador. But as Colombia

has shown, there is no credible or reliable

evidence of this. In the absence of such

evidence, differences between the parties as to

the status or content of particular norms do not

arise for decision.

E CUADOR ’S CLAIMS BASED ON H UMAN R IGHTS AND THE R IGHTS
OF INDIGENOUS PEOPLES

(k) The linchpin of Ecuador’s allegations of breach

of human rights is the evidence of the witnesses

put forward with the Memorial. But for reaso ns

given in Chapter 3, the evidence of those

witnesses is not deserving of credibility.

(l) In these circumstances, issues of human rights

law – the question of “targeting”, the territoriality

948 Pulp Mills on the River Uruguay (Argentina v Uruguay, ICJ
Reports 2010, para. 205.

454 (i) In fact Colombia did assess the impact of its

proposed program, to the extent required by its
own law – the standard laid down by this Court

in Pulp Mills.948

(j) As to the remainder of these claims the necessary

assumption underlying them is, again, that

significant transboundary harm, above the
relevant threshold, was caused by spraying

activities in Colombia, viz., by incidental drift of

spray residues into Ecuador. But as Colombia

has shown, there is no credible or reliable

evidence of this. In the absence of such

evidence, differences between the parties as to

the status or content of particular norms do not

arise for decision.

E CUADOR ’S CLAIMS BASED ON H UMAN R IGHTS AND THE R IGHTS
OF INDIGENOUS PEOPLES

(k) The linchpin of Ecuador’s allegations of breach

of human rights is the evidence of the witnesses

put forward with the Memorial. But for reaso ns

given in Chapter 3, the evidence of those

witnesses is not deserving of credibility.

(l) In these circumstances, issues of human rights

law – the question of “targeting”, the territoriality

948 Pulp Mills on the River Uruguay (Argentina v Uruguay, ICJ
Reports 2010, para. 205.456 Chapter 5

REMEDIAL ISSUES

A. Compensation

5.1. In the Submissions in its Reply, Ecuador requests the

Court to declare that Colombia shall indemnify Ecuador for any

loss or damage caused by its internationally unlawful acts,

namely the use of herbicides by aerial dispersion, and in
particular: (i) death or injury to the health of any person or

persons arising from the use of such herbicides; (ii) any loss of

or damage to the property or livelihood of such persons; (iii)

violation of the human rights of such persons; (iv) violation of
the special rights of indigenous peoples; (v) environmental

damage or the depletion of natural resources; (vi) the costs of

monitoring to identify and assess future risks to public health,

human rights and the environment resulting fro m Colombia’s
use of herbicides; and (vii) any other loss or damage.951

5.2. Colombia has not committed an internationally unlawful

act. Quite to the contrary, the PECIG is conducted in

compliance with an obligation foreseen in the 1988 United
Nations Convention against Illicit Traffic in Narcotic Drugs and

Psychotropic Substances, in the framework of the fight against

the world drug problem which all States are under a duty to

contribute to. It is a Program established in accordance with
Colombian law, that has been implemented with the required

951
ER, Submissions, (B), p. 551.

457due diligence, mindful of international standards. As has been

shown, none of Colombia’s international obligations were
breached in the course of the Program’s implementation within

its territory in the border areas with Ecuador. In light of this,

there is no element of unlawfulness in this case, as required by
the law of State responsibility.

5.3. In Chapter 2, Colombia showed that the spray mixture

does not, and, scientifically, cannot, cause the catalogue of

harms alleged by Ecuador. It also showed that , even under
worst-case conditions, there was likely either no deposit at all in

Ecuador due to spray drift or that, at most, it was insignificant

and well below the levels of concern for sensitive areas . It is
clear that there was no damage caused in Ecuador.

5.4. Ecuador did not put forward any hard evidence of the

damages it alleges. In Chapter 3, Colombia has shown that the

witness statements and supposedly corroborating evidence on
which Ecuador bases its claims are unreliable, scientifically

implausible and in fact, falsified by the spray data.

5.5. Ecuador did not establish causation between the alleged
damages and the sprayings in Colombia. Moreover, it did not

adequately assess and dispose of the many different causes to

which the alleged adverse effects could be attributed (i.e., to the

mining, logging and African Palm oil industries, as a result of
water and soil contamination due to the chemicals used in those

activities, and the deficient health care and sanitation conditions

in the border area).

4585.6. Since no damages or causation have been established,

Ecuador is not entitled to any compensation.

B. Other claims by Ecuador

5.7. In the Counter -Memorial Colombia made three major

points as to the remedial situation:

(a) It is wholly inadmissible, in relation to claims for

breaches of international law that are only

actionable upon proof of damage above a certain
threshold, to seek to postpone the question of

damage to the quantum stage; 952

(b) there is no basis in law or fact for Ecuador’s
953
buffer zone claim;

(c) Ecuador’s claim having failed for want of proof,

the Court should simply declare that Ecuador’s
954
claims are rejected.

5.8. In its Reply, Ecuador responded briefly as follows:

(a) It asserts that it has established its case on the

merits and accuses Colombia of not citing the

ILC Articles on State Responsibility in its

Counter-Memorial. 955

(b) It focuses from a remedial point of view on

“procedural violations, which by definition

952 CCM, paras. 10.1-10.7.
953 CCM, paras. 10.8-10.11. CR, Chapter 2, Section C, above.
954 CCM, para. 10.12.
955 ER, para. 8.4.

459 cannot await a showing of actual harm in order to

have become applicable and to have been
956
violated”.

(c) It accuses Colombia of inability to distinguish

breach from quantification of loss, 957 citing the

Nicaragua and Armed Activities cases. The point

is developed at length, 958 but is essentially as

stated. Yet again Ecuador deprecates the

approach taken in Trail Smelter (the only decided

case at the international level involving

transboundary air pollution), preferring the

thoroughly “modern” approach of the UN
959
Compensation Commission. It also throws in

Diallo for good measure – a case involving

arbitrary expulsion and deprivation of
960
property.

5.9. These points can be dealt with in summary fashion:

(a) This is purely protestative pleading, and a further

illustration of Ecuador’s propensity to rely on

(exaggerated renderings of) legal norms rather

than facts. The factual position is as set out in

Chapters 2 -3 of this Rejoinder , and in the

attached expert reports. It is significant that

956
ER, para. 8.4.
957 ER, paras. 8.6-8.7.
958 ER, paras. 8.8-8.12.
959 ER, para. 8.11.
960 ER, para. 8.12.

460 Ecuador still relies on the affidavit evidence

annexed to its Memorial , despite the fact that its

case has materially changed and that these

affidavits have been seriously compromised and

contradicted. As to the lack of any reference by
Colombia to the ILC Articles on State

Responsibility in its Counter -Memorial, these

merely provide a remedial framework for the

consideration of cases , whether good or bad.
They are no substitute for facts estab lished by

credible evidence.

(b) It is true that “procedural ” violations may not
require proof of actual harm in order to establish

a breach. But this depends on the particular

violation and on the particular norm alleged to

have been violated. It should be stressed that

there is no treaty establishing mandatory
procedures to be followed in relation to

transboundary issues in the present case (unlike

the position in Pulp Mills 96). Moreover, as the

Court held in that same case, “an environmental

impact assessment [is required] where there is a
risk that the proposed industrial activity may

have a significant adverse impact in a

961
Pulp Mills on the River Uruguay (Argentina v. Uruguay), ICJ
Reports 2010, Judgment of 20 April 2010. There is no equivalent here either
to the River Uruguay Statute or the Commission.

461 transboundary context, in particular, on a shared

resource.” 962

First of all, insofar as the evidence goes,

Colombia’s aerial spraying program has not

caused harm to Ecuador . Indeed, Colombia

showed that deposit of the spray mix in Ecuador

due to drift , even assuming worst -case
conditions, would have been zero or

insignificant. Furthermore, Colombia has itself

and through trustworthy associates assessed the

risks, and has appraised the longstanding

nationwide program repeatedly, prior to, during ,
and after the sprayings in the border area, finding

that it did not pose a significant risk to human

health or the environment, and indeed no adverse

effects ensued . Therefore, a transboundary

environmental impact assessment was not called
for. In any event, an assessment or appraisal

procedure designed to prevent harm should not

be hypercritically judged if indeed no harm

occurs and no undue risk is imposed, as in the

case at hand . That would be to elevate form
above substance.

(c) The present case concerns not detailed issues of
quantification but whether substantial or

significant harm (above the relevant threshold)

962
Pulp Mills on the River Uruguay (Argentina v. Uruguay), ICJ
Reports 2010, para. 204.

462 has been caused or not. In cases of alleged

transboundary harm by air pollution it is not
enough to show that a certain chemical, not

inherently harmful in any dose whatever, 963has

crossed the boundary (although Ecuador, for all

its opportunities to take measurements over the

years of spraying has not even shown that). It

has to be demonstrated that the substance, lawful

in its origins, has actually caused harm above the

relevant threshold – that a breach has act ually

occurred. This is the gist of the cause of action
and has nothing whatever to do with ascertaining

quantum. It is true that in some cases the fact

that quantifiable harm has been caused may be

obvious, taken as read – where there has been ,

for example, the mining of a harbour or the
964
looting of a province. But – unless the Court

is prepared to credit Mr Mestanza – there has

been nothing like that in the present case.
Ecuador is trying to get to a hypothetical

quantum phase by sleight of hand.

5.10. More serious – because of their potentially serious

implications for Colombia’s sovereignty over its border regions

963 This case has nothing to do with nuclear issues or radioactive
fallout. Australia v France, IJ Reports 1974, p. 253; New Zealand v
France, ICJ Reports 1974, p. 457.
964 In Trail Smelter the fact of substantial crop losses from high sulphur
emissions was evident from the beginning and was well -documented in the
pleadings: see (1938) 3 RIAA 1905; (1941) 3 RIAA 1938.

463– are Ecuador’s protestations that it does not seek to restrict that
965
sovereignty. But in truth, if Ecuador were to prevail in

persuading the Court to declare a buffer zone precluding the

spray program from being conducted in the border area,
Colombia’s sover eignty over the border region would be

seriously impaired. The point – though no stronger than other

remedial points made by Ecuador – thus requires more detailed

scrutiny.

Ecuador’s Buffer Zone Claim

5.11. The scientific merits of Ecuador’s claim for the Court to

establish a buffer zone in Colombian territory have already been
discussed and dismissed. 966

5.12. After two completed rounds of written pleadings, the

evidence does not show any harm as having been caused,

whether at a distance of 10 kilometres, 5 kilometres , 1

kilometre, or – in fact – at any distance. The evidence of

Dr Hewitt is that spray drift in measurab le quantities does not

penetrate downwind more than – at most – a few tens of metres
967
from the spray site. The satellite imagery shows no evidence

of spray drift in Ecuador and that , in any event, whatever spray

drift there may have been d id not cause defoliation in
968
Ecuador. The hundreds of studies on glyphosate on record

with the EPA, and s pecific studies, such as those of CICAD I

965 ER, paras. 8.13-8.18.
966 See Chapters 2-3 above.
967 Chapter 2, Section C, above; and CR, Vol. II, Annex 1: Hewitt
Report – Response to Giles (2011), para. 32, p. 14.
968 CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by
Dr Barry M. Evans, Dec. 2011.

464and II, the 2003 toxicity studies on the spray mixture contracted
by the US Department of State and reviewed by EPA, as well as

the evidence of Dr Solomon and Dr Dobson all show that the

spray mixture could not have caused the catalogue of harms of
969
which Ecuador complains. It is highly material that harms of

this type have not been caused in Colombia itself, whe re the

spraying programhas actually been conducted.

5.13. In short, Ecuador having comprehensively failed to
make out its case on the merits, it is the Court’s function simply

to say so and to decline any substantive remedy, whether by

way of a buffer zone or otherwise.

5.14. It is true that Colombia has for the most part since 2007

refrained from spraying within 10 kilometres of the border. But

it has done so solely as a gesture of goodwill in light of the

sometimes fraught relations between the two States.

5.15. A ges ture taken in the interests of better relations
between two States should not be converted into a commitment

by repetition of words such as “reliance” and “representation”,

and in any event Ecuador does not suggest that it has suffered

any detriment or mat erially changed its position by virtue of
970
such “reliance”. On the contrary, it has relied on the likes of

Victor Mestanza to maintain a spurious and scientifically

incredible claim which has at times extended to the deaths of
children and the destruction of cultures.

969 CR, Vol. IV Annex 54; Vol. V, Annex 56; CCM, Vol. III, Annexes
116 and 131.
970 ER, para. 8.14 is quite clear on this point.

4655.16. Ecuador’s submission to the effect of having the Court

declare that Colombia shall “prohibit” aerial spraying “within
10 kilometres of the border with Ecuador”, runs counter to the

jurisprudence of the Court. In principle it is not for the Court to

tell a party how precisely to comply with its judgment, and this
is true even in respect of obligations of a far more precise

character than those on which Ecuador relies. Many cases

reflect this principle:

(a) In the Haya de la Torre case, there was a dispute

between the parties as to the manner in which the

Court’s prior judgment in the Asylum case was to be
implemented. Speaking of that judgment, the Court in

Haya de la Torre commented:

“The Court observes that the judgment
confined itself, in this connection, to
defining the legal relations which the

Havana Convention had established between
the Parties. It did not give any directions to
the Parties, and entails for them only the
obligation of compliance therewith. The
interrogative form in which they have
formulated their Submissions shows that
they desire that the Court should make a

choice amongst the various courses by
which the asylum may be terminated. But
these courses are condition ed by facts and
by possibilities which, to a very large extent,
the Parties are alone in a position to
appreciate. A choice amongst them could
not be based on legal considerations, but

only on considerations of practicability or of
political expediency; it is not part of the

466 Court's judicial function t o make such a
971
choice.”

In the event, the Court declined to say how the parties

were to give effect to the judgment, beyond affirming

the holding in Asylum that unlawful asylum had to be
terminated. But how it had to be terminated – there

being more than one lawful way of doing so – was a

matter for the parties (and notably for Colombia as the

obligor under the Asylum judgment) and not for the

Court. As the Court said:

“The Court has thus arrived at the
conclusion that the asylum must cease, but
that the Government of Colombia is under

no obligation to bring this about by
surrendering the refugee to the Peruvian
authorities. There is no contradiction
between these two findings, since surrender

is not the only way of terminating asylum.

Having thus defined in accordance with the
Havana Convention the legal relations
between the Parties with regard to the

matters referred to i t, the Court has
completed its task. It is unable to give any
practical advice as t o the various courses
which might be followed with a view to
terminating the asylum, since, by doing so, it
972
would depart from its judicial function.”

Haya de la Torre is clear authority for the proposition

that the Court will not particularise the method by

971
972 Haya de la Torre case (Colombia/Peru) ICJ Reports 1950, p. 79.
Haya de la Torre case (Colombia/Peru), ICJ Reports 1950, pp. 82-3
(emphasis added). The Court was unanimous.

467 which its judgment is to be implemented, if there is
more than one lawful way of doing so.

(b) The Court has always acted consistently with this

principle. For exa mple in LaGrand the Court, having

held that there had been a breach of the Vienna
Convention on Consular Relations, had to deal with

the consequences. It said:

“The Court considers in this respect that if
the United States… should fail in its
obligation of consular notification to the
detriment of German nationals, an apology

would not suffice i n cases where the
individuals concerned have been subjected
to prolonged detention or convicted and
sentenced to severe penalties. In the case of
such a conviction and sentence, it would be

incumbent upon the United States to allow
the review and reconsideration of the
conviction and sentence by taking account
of the violation of the rights set forth in the

Convention. This obligation can be carried
out in various ways . The choice of means
must be left to the United States.” 973

(c) This passage was quoted twice with approval by

the Court in the Avena case974 where, equally, the

Court ordered the United States…

“to provide, by means of its own choosing,
review and reconsideration of the
convictions and sentences of the Mexican
nationals referred to … by taking account

973 LaGrand (Germany v United States of America) , Judgment, ICJ
Reports 2001, pp. 513-514, para. 125 (emphasis added).
974 Avena and Other Mexican Nationals (Mexico v U nited States of
America), Judgment, ICJ Reports 2004, p. 59, para. 120; p. 62, para. 128.

468 both of the violation of the rights set forth in
Article 36 of the Convention and of
paragraphs 138 to 141 of this Judgment.” 975

(d) Most r ecently, in Application of the Interim

Accord of 13 September 1995 (The Former Yugoslav

Republic of Macedonia v Greece), the Court did not…

“consider it necessary to order the
Respondent, as the Applicant requests, to

refrain from any future conduct that violates
its obligation under Article 11, paragraph 1,
of the Interim Accord. As the Court
previously explained, “[a]s a general rule,

there is no reason to suppose that a State
whose act or conduct has been declared
wrongful by the Court will repeat that act or
conduct in the future, since its good faith

must be presumed” ( Navigational and
Related Rights (Costa Rica v. Nicaragua),
Judgment, I.C.J. Reports 2009, p. 267, para.
976
150).”

Moreover this was despite an overwhelming majority

of the Court in favour of responsibility and a relatively

precise obligation not to object to membership.

5.17. In light of the Court’s jurisprudence, the position is even

clearer in the present case. In the hypothesis that Ecuador could

establish – which it has failed to do, both in its Memorial and in

975
Avena and Other Mexican Nationals (Mexico v United States of
America), Judgment, ICJ Reports 2004, p. 72, para. 153(9), (emphasis
added). See also Request for Interpretation of the Judgment of 31 March
2004 in the Case concerning Avena and Other Mexican Nationals (Mexico v.
United States of America) (Mexico v. United States of America), Judgment,
ICJ Reports 2009, p. 17, para. 44.
976 Application of t he Interim Accord of 13 September 1995 (The
Former Yugoslav Republic of Macedonia v Greece), Judgment of 5
December 2011, p. 47, para. 168.

469its Reply – some measure of transboundary harm above the

relevant threshold as a result of activities conducted by
Colombia within its own territory, it is clear that the Court has

always been careful to preserve the entitlement of the part y to

decide, in the first instance, which of several available methods
that exist for giving effect to the Court’s judgment is to be

adopted.

5.18. The point can be made in another way. The obligation of

due diligence on which Ecuador relies is an obligation of result
– an obligation to take all reasonable measures not to cause

transboundary harm to a neighbouring State. It does not give

Ecuador the right to choose among the various means which
might be adopted, if such was the case – quod non – to achieve

the result. The choice of method is a matter for Colombia, not

for Ecuador, nor even (with due respect) for the Court.

5.19. This is more particularly the case here given that there is
no scientifically proven significant risk to human and animal

health caused by the spray mixture. Moreover, it must be borne

in mind that there are powerful countervailing interests at stake,
including the interest of Colombia and of the international

community in the fight against illicit drugs. These were

explained in the Counter -Memorial and have not been refuted

by Ecuador. It is – with all respect – not for the Court to grant,
indefinitely, a right to Ecuador , amounting to a form of

impunity for illegal coca producers from what is the most

effective and secure method of suppression. B y insisting on
impunity within 10 kilometres of its border, Ecuador seeks to

470recruit the Court in the fight against drugs – but on the wrong

side, on the side of the producers, the unsavoury middle -men

and their associates from illegal armed groups!

5.20. Such a zone, ordered by the Court, would be a haven for

criminals and a clear infringement of Colombian sovereignty

over its own territory.

Conclusion

5.21. For these reasons, Ecuador is not entitled to any of the
relief it see ks in the present case and the Court should so

declare.

471 SUMMARY

A. Introduction

1. In its pleadings Ecuador has portrayed a devastating

image of the situation of its northern regions bordering

Colombia, allegedly as a result of the drift from aerial spraying

operations conducted by Colombia on its own territory between
2000 and 2007. This portrayal bears no relation to the facts.

2. In fact the spray flight data provide no support to

Ecuador’s witnesses. In many cases, the data show that there
were no sprayings at the times mentioned by the witnesses. Even

when sprayings did take place in Colombia at the relevant times,

there was no spray deposition at all in Ecuador or –

was insignificant.

3. Ecuador’s claims have not been established as a matter

of fact and can not be reconciled with the scientific evidence.

Contrary to its assertions, no damage was caused, and therefore
there is no question of violations of the human rights of

Ecuadorian nationals or the rights of indigenous communities as

a result of the spray ings over illicit coca crops in Colombian
territory.

4. Colombia has been at th e forefront of the global efforts

directed at drug eradication and interdiction. Colombia has acted

in compliance with its international obligations, and in
application of the principle of shared responsibility

472 SUMMARY

A. Introduction

1. In its pleadings Ecuador has portrayed a devastating

image of the situation of its northern regions bordering

Colombia, allegedly as a result of the drift from aerial spraying

operations conducted by Colombia on its own territory between
2000 and 2007. This portrayal bears no relation to the facts.

2. In fact the spray flight data provide no support to

Ecuador’s witnesses. In many cases, the data show that there
were no sprayings at the times mentioned by the witnesses. Even

when sprayings did take place in Colombia at the relevant times,

there was no spray deposition at all in Ecuador or – if any – it

was insignificant.

3. Ecuador’s claims have not been established as a matter

of fact and can not be reconciled with the scientific evidence.

Contrary to its assertions, no damage was caused, and therefore
there is no question of violations of the human rights of

Ecuadorian nationals or the rights of indigenous communities as

a result of the spray ings over illicit coca crops in Colombian
territory.

4. Colombia has been at th e forefront of the global efforts

directed at drug eradication and interdiction. Colombia has acted

in compliance with its international obligations, and in
application of the principle of shared responsibility ,

473acknowledged by the international community. Waging this

battle is a n issue of national security for Colombia, in the

defence of its democracy, its institutions and its nationals who
have suffered for decades due to drug trafficking.

5. The Program is a nation wide one, not limited to border

areas. Spraying operations have been conducted in 23 of the 32

Colombian provinces in exactly the same manner, and in
compliance with the same parameters and regulations . There

was no different procedure adopted in the border area with

Ecuador between 2000 and 2007. All this has been done
without registering adverse effects on human health, flora, fauna

or the environment as a result.

6. Ecuador asserts that the aerial fumigations “have been
977
ineffective as a means of stemming the cultivation of coca.”
But according to the 2011 Report of the United Nations Office

on Drugs and Crime , during the last ten years, Colombia

succeeded in reducing the overall area within its territory under

coca cultivation by 65.1%. As a result, while in 2000 73.8% of
all the coca cultivation existing in the world was located in

Colombia, in 2010 this percentage decreased to 38.2%. This

successful campaign could certainl y not have been

accomplished without aerial spraying.

7. Ecuador has modified the requests made in its Memorial

and added a request that the Court order a 10 kilometre buffer

zone along the boundary between Colombia and Ecuador. But

977
EM, para. 2.54.

474acknowledged by the international community. Waging this

battle is a n issue of national security for Colombia, in the

defence of its democracy, its institutions and its nationals who
have suffered for decades due to drug trafficking.

5. The Program is a nation wide one, not limited to border

areas. Spraying operations have been conducted in 23 of the 32

Colombian provinces in exactly the same manner, and in
compliance with the same parameters and regulations . There

was no different procedure adopted in the border area with

Ecuador between 2000 and 2007. All this has been done
without registering adverse effects on human health, flora, fauna

or the environment as a result.

6. Ecuador asserts that the aerial fumigations “have been
977
ineffective as a means of stemming the cultivation of coca.”
But according to the 2011 Report of the United Nations Office

on Drugs and Crime , during the last ten years, Colombia

succeeded in reducing the overall area within its territory under

coca cultivation by 65.1%. As a result, while in 2000 73.8% of
all the coca cultivation existing in the world was located in

Colombia, in 2010 this percentage decreased to 38.2%. This

successful campaign could certainl y not have been

accomplished without aerial spraying.

7. Ecuador has modified the requests made in its Memorial

and added a request that the Court order a 10 kilometre buffer

zone along the boundary between Colombia and Ecuador. But

977
EM, para. 2.54.10. In fact t he spray mixture has been subject to

comprehensive analyses carried out by the OAS CICAD, by the

United States’ EPA and the State Department. Since 2002 the
US Secretary of State has been required to make an annual

determination and report to the Committees on Appropriations

of the US Congress that certain conditions are met.

11. The documentation obtained by Ecuador from US
government sources includes six acute toxicity studies carried

out in 2003 by an independent laboratory contracted by the State

Department, and reviewed by the EPA. On the basis of the
studies, the EPA classified the mixture as category III (mildly

toxic) for eye irritation and category IV (slightly to xic) for all

the rest. Ecuador ignores these studies altogether in its Reply.

12. The formula used in the mixture has been described
since 2000 in public documents issued by the Ministry of the

Environment, and in all the audits carried out b y Colombia

every year on a monthly basis. With regard to Ecuador’s

allegation that the spray mixture and its ingredients are highly
toxic to humans and animals, this is contradicted not only by the

findings of the studies conducted by the OAS CICAD, and those

contracted by the US State Department and reviewed by EPA,

but also by the analyses conducted in the field by the Ecuadorian
and Colombian Scientific and Technical Commissions in 2004

as well as independent scientific data and field studies. All these

scientific studies and analyses , as well as the expert reports

attached to this Rejoinder (including those produced for the
Dyncorp proceedings), confirm that the spray mixture used in

47610. In fact t he spray mixture has been subject to

comprehensive analyses carried out by the OAS CICAD, by the

United States’ EPA and the State Department. Since 2002 the
US Secretary of State has been required to make an annual

determination and report to the Committees on Appropriations

of the US Congress that certain conditions are met.

11. The documentation obtained by Ecuador from US
government sources includes six acute toxicity studies carried

out in 2003 by an independent laboratory contracted by the State

Department, and reviewed by the EPA. On the basis of the
studies, the EPA classified the mixture as category III (mildly

toxic) for eye irritation and category IV (slightly to xic) for all

the rest. Ecuador ignores these studies altogether in its Reply.

12. The formula used in the mixture has been described
since 2000 in public documents issued by the Ministry of the

Environment, and in all the audits carried out b y Colombia

every year on a monthly basis. With regard to Ecuador’s

allegation that the spray mixture and its ingredients are highly
toxic to humans and animals, this is contradicted not only by the

findings of the studies conducted by the OAS CICAD, and those

contracted by the US State Department and reviewed by EPA,

but also by the analyses conducted in the field by the Ecuadorian
and Colombian Scientific and Technical Commissions in 2004

as well as independent scientific data and field studies. All these

scientific studies and analyses , as well as the expert reports

attached to this Rejoinder (including those produced for the
Dyncorp proceedings), confirm that the spray mixture used inpublic and used for agriculture and weed control in gardens and

parks all over the world.

17. Ecuador affirms that the addition of Cosmo- Flux 411F
makes the mixture more toxic. 979 But the surfactant Cosmo -

Flux 411F was reviewed in the CICAD studies, and tested in the

toxicity studies on the spray mixtures requested by t he United

States State Department and reviewed by the US EPA; no
increased toxicity or significant adverse effects were found.

Other alleged ingredients

18. Other Ecuadorian allegations as to the content of the

spray mixture are likewise shownto be erroneous.

PARAMETERS OF DRIFT

19. With the realistic modeling of drift from spray

operations which takes proper account of all relative variables,

including in particular the intercepting effect of the presence of

vegetation immediately adjacent to the areas sprayed, it was
shown that – even in the worst case scenario in terms of wind

direction and wind speed – any potential deposition of spray

drift in Ecuadorian territory would be well below de minimis

levels and no damage could have been caused in Ecuador

Aircraft Speed and Height of Spray Release

20. On the basis of the full set of spray data, Ecuador

attempts to suggest that multiple flights exceeded the

979
ER, para 2.55.

478public and used for agriculture and weed control in gardens and

parks all over the world.

17. Ecuador affirms that the addition of Cosmo- Flux 411F
makes the mixture more toxic. 979 But the surfactant Cosmo -

Flux 411F was reviewed in the CICAD studies, and tested in the

toxicity studies on the spray mixtures requested by t he United

States State Department and reviewed by the US EPA; no
increased toxicity or significant adverse effects were found.

Other alleged ingredients

18. Other Ecuadorian allegations as to the content of the

spray mixture are likewise shownto be erroneous.

PARAMETERS OF DRIFT

19. With the realistic modeling of drift from spray

operations which takes proper account of all relative variables,

including in particular the intercepting effect of the presence of

vegetation immediately adjacent to the areas sprayed, it was
shown that – even in the worst case scenario in terms of wind

direction and wind speed – any potential deposition of spray

drift in Ecuadorian territory would be well below de minimis

levels and no damage could have been caused in Ecuador

Aircraft Speed and Height of Spray Release

20. On the basis of the full set of spray data, Ecuador

attempts to suggest that multiple flights exceeded the

979
ER, para 2.55.at altitudes between 50 and 77 metres, and only 1.2% (51 spray

events) were in excess of 77 metres. All those spray events took

place at low speeds. Individual modeling by Dr Hewitt of the
amount of deposition from the highest of those spray events and

those above 77 metres closest to the border showed that

deposition rates at the closest point within Ecuador territory was

minimal and again, given the relevant levels of concern, was
incapable of having caused damage of the kind alleged by

Ecuador.

Pilot training and performance

23. Ecuador criticises the abilities and training of Dyncorp’s

pilots. Ecuador quotes isolated and fragmentary sentences taken
out-of-context, from selected documents most of which pre -date

the start of spraying operations in the border area with Ecuador,

and which have no relevance at all for the present case.

Droplet Size

24. According to Ecuador, Colombia agrees that, in addition

to aircraft speed and height of the spray release, droplet size
“significantly contribute[s] to drift.”80

25. Of the 3,917 spray events for which speed data was

recorded in the relevant area, 3,561 recorded speeds under

333 km/h (207 mph). Accordi ng to Colombia’s expert, Dr
Hewitt, this means that in all of these spray events, i.e., 90.9%

of the total, median droplet size would have been larger than

980
ER, para 2.134.

480at altitudes between 50 and 77 metres, and only 1.2% (51 spray

events) were in excess of 77 metres. All those spray events took

place at low speeds. Individual modeling by Dr Hewitt of the
amount of deposition from the highest of those spray events and

those above 77 metres closest to the border showed that

deposition rates at the closest point within Ecuador territory was

minimal and again, given the relevant levels of concern, was
incapable of having caused damage of the kind alleged by

Ecuador.

Pilot training and performance

23. Ecuador criticises the abilities and training of Dyncorp’s

pilots. Ecuador quotes isolated and fragmentary sentences taken
out-of-context, from selected documents most of which pre -date

the start of spraying operations in the border area with Ecuador,

and which have no relevance at all for the present case.

Droplet Size

24. According to Ecuador, Colombia agrees that, in addition

to aircraft speed and height of the spray release, droplet size
“significantly contribute[s] to drift.”80

25. Of the 3,917 spray events for which speed data was

recorded in the relevant area, 3,561 recorded speeds under

333 km/h (207 mph). Accordi ng to Colombia’s expert, Dr
Hewitt, this means that in all of these spray events, i.e., 90.9%

of the total, median droplet size would have been larger than

980
ER, para 2.134.Temperature, Humidity and Wind Conditions

28. In the conditions typical of the relevant area, the

interaction between relative humidity and temperature does not

result in increased drift risk. Over 90% of the spray deposits
within 100 m of the swath edge and, as Dr Hewitt states, the

levels of deposit downwind “rapidly approach zero within a few

hundred meters”. Even the smaller droplets that could be

subject to drift would carry an insignificant amount of the active
ingredient.

29. In the southern parts of Nariño and Putumayo provinces

mild winds are prevalent (64% of daily records for 100 months

between 2000 and 2008) and the mean wind speeds are in the
order of between 1 m/sec and 2 m /sec, i.e., 3.6- 7.2 km/h, low

values. Further, meteorological analyses show that for most of

the year, predominant winds in the border area blow from

Ecuador towards Colombia and their speeds are low.

Alleged night-time spraying

30. Ecuador a sserts that “the data collected by the spray
planes confirm Colombia’s night time spraying on a massive

scale”.981 This is not true. No aerial spraying operations for the

eradication of illicit crops in areas adjacent to the border with

Ecuador have been conducted during night time. That the times
recorded by the software used on the spray aircraft appear to

indicate the contrary is due to a discrepancy caused by errors in

the offset of the spray system’s clocks.

981
ER, para 2.147.

482Temperature, Humidity and Wind Conditions

28. In the conditions typical of the relevant area, the

interaction between relative humidity and temperature does not

result in increased drift risk. Over 90% of the spray deposits
within 100 m of the swath edge and, as Dr Hewitt states, the

levels of deposit downwind “rapidly approach zero within a few

hundred meters”. Even the smaller droplets that could be

subject to drift would carry an insignificant amount of the active
ingredient.

29. In the southern parts of Nariño and Putumayo provinces

mild winds are prevalent (64% of daily records for 100 months

between 2000 and 2008) and the mean wind speeds are in the
order of between 1 m/sec and 2 m /sec, i.e., 3.6- 7.2 km/h, low

values. Further, meteorological analyses show that for most of

the year, predominant winds in the border area blow from

Ecuador towards Colombia and their speeds are low.

Alleged night-time spraying

30. Ecuador a sserts that “the data collected by the spray
planes confirm Colombia’s night time spraying on a massive

scale”.981 This is not true. No aerial spraying operations for the

eradication of illicit crops in areas adjacent to the border with

Ecuador have been conducted during night time. That the times
recorded by the software used on the spray aircraft appear to

indicate the contrary is due to a discrepancy caused by errors in

the offset of the spray system’s clocks.

981
ER, para 2.147.statements made in generally vague terms 8 years later . The

spray data demonstrates that in r elation to the allegations of the
witnesses, there was no spraying in Ecuadorian territory or over

the San Miguel or Putumayo border rivers, or even sufficiently

close to the locations in which they claim they were present, that

could have caused the harm alleged. In a significant number of
cases, there was no spraying at all anywhere near the locations

in question at the relevant times.

35. That conclusion is corroborated by expert analysis of
satellite imagery , which demonstrates that spraying within

Colombia did not cause any effects within Ecuador.

36. Ecuador puts forward no hard scientific evidence either
of the deposition of the spra y mixture within its territory , or of

the damage it alleges occurred , or of causation. If the d amage

were as widespread as Ecuador alleges, there would have been

ample evidence documenting the harm, including scientific
and/or medical evidence and studies, photographs , and other

images of the damage caused. This striking absence of detailed,

contemporaneous evidence not merely does not support
Ecuador’s case, it actively undermines it.

37. Both the witness evidence and the supposedly

corroborative evidence are not worthy of any credibility. In

particular:

(a) The statements are not contemporaneous but

produced for the purposes of this litigation.

484statements made in generally vague terms 8 years later . The

spray data demonstrates that in r elation to the allegations of the
witnesses, there was no spraying in Ecuadorian territory or over

the San Miguel or Putumayo border rivers, or even sufficiently

close to the locations in which they claim they were present, that

could have caused the harm alleged. In a significant number of
cases, there was no spraying at all anywhere near the locations

in question at the relevant times.

35. That conclusion is corroborated by expert analysis of
satellite imagery , which demonstrates that spraying within

Colombia did not cause any effects within Ecuador.

36. Ecuador puts forward no hard scientific evidence either
of the deposition of the spra y mixture within its territory , or of

the damage it alleges occurred , or of causation. If the d amage

were as widespread as Ecuador alleges, there would have been

ample evidence documenting the harm, including scientific
and/or medical evidence and studies, photographs , and other

images of the damage caused. This striking absence of detailed,

contemporaneous evidence not merely does not support
Ecuador’s case, it actively undermines it.

37. Both the witness evidence and the supposedly

corroborative evidence are not worthy of any credibility. In

particular:

(a) The statements are not contemporaneous but

produced for the purposes of this litigation. • That evidence (satellite imagery) accords

with the modeling of drift from the spray

events by Colombia’s expert (Dr Hewitt),
which resulted in insignificant levels of

deposit at the distances involved.

Ecuador’s reliance on additional evidence

38. By way of corroboration Ecuador attempts to rely on

what it suggests are corroborative contemporaneous reports of

NGOs and press reports. But these are no more reliable than the
witness statements. In particular:

• These are based on interviews with local

residents, collected some time after the alleged

events.

• As regards the report by Acción Ecológica, it is

extravagant and unreliable.

• Many concern locations kilometres away from

the border (e.g. Reina del Cisne or La Cóndor)
which could not possibly have been af fected by

spray drift.

Satellite imagery

39. The expert analysis of satellite imagery (Dr Evans)

provides still further strong countervailing evidence that

spraying within Colombia did not result in any deposition of
significant amounts of spra y mixture within Ecuador and that

486 • That evidence (satellite imagery) accords

with the modeling of drift from the spray

events by Colombia’s expert (Dr Hewitt),
which resulted in insignificant levels of

deposit at the distances involved.

Ecuador’s reliance on additional evidence

38. By way of corroboration Ecuador attempts to rely on

what it suggests are corroborative contemporaneous reports of

NGOs and press reports. But these are no more reliable than the
witness statements. In particular:

• These are based on interviews with local

residents, collected some time after the alleged

events.

• As regards the report by Acción Ecológica, it is

extravagant and unreliable.

• Many concern locations kilometres away from

the border (e.g. Reina del Cisne or La Cóndor)
which could not possibly have been af fected by

spray drift.

Satellite imagery

39. The expert analysis of satellite imagery (Dr Evans)

provides still further strong countervailing evidence that

spraying within Colombia did not result in any deposition of
significant amounts of spra y mixture within Ecuador and that least in any significant quantities, and in any

case, that it is simply incapable of causing the

effects alleged by the various witnesses relied
upon by Ecuador and the other supposedly

supporting evidence.

• Ecuador’s scientific witnesses speak in terms of

possibility or potentiality, rather than in terms of
any firm conclusion that the damage has in fact

occurred.

• The reports relied upon by Ecuador are flawed in

their approach, and are either based on incorrect
assumptions, or misunderstand the relevant

principles.

42. Given the modeling of drift carried out by Dr Hewitt, it

is clear that spray drift from spraying within Colombia did not
reach Ecuador in quantities capable of causing any damage to

plants or animals.

43. In this regard, the modeling by Dr Hewitt of the “worst

case” spray lines closest to the border resulted in predicted
deposition rates of between 0.001 and 2.71 g/ha on the

Ecuadorian bank of the border river. Those values are far below

any relevant level of concern which has been suggested by

either party.

44. There is an overwhelming body of scientific evidence

which demonstrates that glyphosate in particular, and the

488 least in any significant quantities, and in any

case, that it is simply incapable of causing the

effects alleged by the various witnesses relied
upon by Ecuador and the other supposedly

supporting evidence.

• Ecuador’s scientific witnesses speak in terms of

possibility or potentiality, rather than in terms of
any firm conclusion that the damage has in fact

occurred.

• The reports relied upon by Ecuador are flawed in

their approach, and are either based on incorrect
assumptions, or misunderstand the relevant

principles.

42. Given the modeling of drift carried out by Dr Hewitt, it

is clear that spray drift from spraying within Colombia did not
reach Ecuador in quantities capable of causing any damage to

plants or animals.

43. In this regard, the modeling by Dr Hewitt of the “worst

case” spray lines closest to the border resulted in predicted
deposition rates of between 0.001 and 2.71 g/ha on the

Ecuadorian bank of the border river. Those values are far below

any relevant level of concern which has been suggested by

either party.

44. There is an overwhelming body of scientific evidence

which demonstrates that glyphosate in particular, and the (c) as to the alleged damage to plant life, the

scientific evidence, combined with the evidence

as to likely deposition rates even from those
spray events closest to the border shows that the

spray mixture could not have reached Ecuador in

quantities such as to cause the harm alleged.

46. Not only must Ecuador demonstrate to the satisfaction of
the Court that the harms it alleges did in fact occur, but it must

also show that if there was any harm at all, that it was caused by

deposition of the spray mixture as a result of drift from spraying
within Colombia. But potential alternative cause s of the health

symptoms allegedly experienced by the witness are endemic in

the border region, and Ecuador has done nothing to exclude

them as causal agencies . It has also failed to exclude other
causal agencies with regard to damages to crops or soil

productivity, such as fungi and pathogens, and the inherent

poorness of nutrients in Amazonian soils.

D. Legal Issues

47. The present case turns essentially on the questions of fact

and evaluation dealt with in Chapters 2 and 3. From the

conclusions drawn there, Ecuador’s claim fails without any need

to consider legal issues. However a brief account of these
follows.

490 (c) as to the alleged damage to plant life, the

scientific evidence, combined with the evidence

as to likely deposition rates even from those
spray events closest to the border shows that the

spray mixture could not have reached Ecuador in

quantities such as to cause the harm alleged.

46. Not only must Ecuador demonstrate to the satisfaction of
the Court that the harms it alleges did in fact occur, but it must

also show that if there was any harm at all, that it was caused by

deposition of the spray mixture as a result of drift from spraying
within Colombia. But potential alternative cause s of the health

symptoms allegedly experienced by the witness are endemic in

the border region, and Ecuador has done nothing to exclude

them as causal agencies . It has also failed to exclude other
causal agencies with regard to damages to crops or soil

productivity, such as fungi and pathogens, and the inherent

poorness of nutrients in Amazonian soils.

D. Legal Issues

47. The present case turns essentially on the questions of fact

and evaluation dealt with in Chapters 2 and 3. From the

conclusions drawn there, Ecuador’s claim fails without any need

to consider legal issues. However a brief account of these
follows.52. Even before the implementation of the Environmental

Management Plan, the PECIG was under continuous monitoring
by several government agencies and was subject to external

audit.

53. In 2004 the highest administrative tribunal of Colombia,
the Council of State, dismissed an action brought against the

Ministry for the Environment seeking discontinuance of the

aerial spraying program on the basis of an alleged transgression

of environmental rights and obligations. This is dispositive of
the lawfulness of the program under Colombian law.

54. The assessments carried out by Colombia concluded that

there was no risk of significant har m from the aerial spraying
activities. Independent scientific analyses of the spray mixture

used in the program and tests conducted by Ecuador itself on the

ground in 2004 also excluded that the aerial sprayings presented

significant hazards for human hea lth and the environment. In
other words, Colombia did conduct an environmental impact

assessment (EIA) prior to the start of the spraying operations in

the border area with Ecuador, and thereafter it continued to
perform all the necessary monitoring activities to ensure

compliance with the EMP, built on the basis of the EIA. By

doing so, Colombia fully complied with its obligations of due

diligence to take all reasonable steps to prevent any possible
impact on human health and the environment.

55. Colombia has conducted the PECIG with due diligence,

having devoted significant resources to reviewing the potential

49252. Even before the implementation of the Environmental

Management Plan, the PECIG was under continuous monitoring
by several government agencies and was subject to external

audit.

53. In 2004 the highest administrative tribunal of Colombia,
the Council of State, dismissed an action brought against the

Ministry for the Environment seeking discontinuance of the

aerial spraying program on the basis of an alleged transgression

of environmental rights and obligations. This is dispositive of
the lawfulness of the program under Colombian law.

54. The assessments carried out by Colombia concluded that

there was no risk of significant har m from the aerial spraying
activities. Independent scientific analyses of the spray mixture

used in the program and tests conducted by Ecuador itself on the

ground in 2004 also excluded that the aerial sprayings presented

significant hazards for human hea lth and the environment. In
other words, Colombia did conduct an environmental impact

assessment (EIA) prior to the start of the spraying operations in

the border area with Ecuador, and thereafter it continued to
perform all the necessary monitoring activities to ensure

compliance with the EMP, built on the basis of the EIA. By

doing so, Colombia fully complied with its obligations of due

diligence to take all reasonable steps to prevent any possible
impact on human health and the environment.

55. Colombia has conducted the PECIG with due diligence,

having devoted significant resources to reviewing the potentialrisks and concluded they were acceptable, even de minimis. The

body of scientific expertise, and the scientific data, annexed to

this Rejoinder demonstrates that that assessment was essentially

correct. It would be an arid and unrealistic finding for the Court

to hold nonetheless that more should have been done when the

only result would have been the confirmation of the assessments
actually carried out –and fully vindicated by later inquiry.

ECUADOR ’S CLAIMS BASED ON V IOLATION OF T ERRITORIAL
SOVEREIGNTY

60. In Chapter 5 of its Reply, Ecuador alleges that Colombia

has “violated the duty to respect Ecuador’s sovereignty”.

61. As was argued in the Counter -Memorial, a case

concerned with alleged harm caused by spray drift is not to be

resolved by general deductions from sovereignty or territorial

integrity. That core point is never satisfactorily addressed by
Ecuador in its Reply.

62. The aerial spraying program in no way impinges upon

Ecuador’s territorial sovereignty or territorial integrity. On the

contrary, permanently to prohibit Colombia from engaging in

the program on its own territory, as Ecuador seeks to do, would

seriously impinge on Colombia’s sovereignty and would affect
its capacity to comply with its international obligations in

relation to the fight against drug trafficking.

494risks and concluded they were acceptable, even de minimis. The

body of scientific expertise, and the scientific data, annexed to

this Rejoinder demonstrates that that assessment was essentially

correct. It would be an arid and unrealistic finding for the Court

to hold nonetheless that more should have been done when the

only result would have been the confirmation of the assessments
actually carried out –and fully vindicated by later inquiry.

ECUADOR ’S CLAIMS BASED ON V IOLATION OF T ERRITORIAL
SOVEREIGNTY

60. In Chapter 5 of its Reply, Ecuador alleges that Colombia

has “violated the duty to respect Ecuador’s sovereignty”.

61. As was argued in the Counter -Memorial, a case

concerned with alleged harm caused by spray drift is not to be

resolved by general deductions from sovereignty or territorial

integrity. That core point is never satisfactorily addressed by
Ecuador in its Reply.

62. The aerial spraying program in no way impinges upon

Ecuador’s territorial sovereignty or territorial integrity. On the

contrary, permanently to prohibit Colombia from engaging in

the program on its own territory, as Ecuador seeks to do, would

seriously impinge on Colombia’s sovereignty and would affect
its capacity to comply with its international obligations in

relation to the fight against drug trafficking.spray drift in no way affect Ecuadorian populations or the
environment. There is thus no foothold for Ecuador’s argument

of breach of norms of international environmental law.

ECUADOR S C LAIMS BASED ON H UMAN R IGHTS AND THE R IGHTS
OF INDIGENOUS P EOPLES

67. The linchpin of Ecuador’s allegations of breach of

human rights is the evidence of the witnesses put forward with

the Memorial. But for reasons given in Chapter 3, the evidence

of those witnesses is not deserving of credibility.

68. In these circumstances, issues of human rights law – the

question of “targeting”, the territoriality of human rights

obligations, etc – are without incidence in this case.

69. Finally, Ecuador repeats its Rejoinder arguments as to

the impact of the aerial spraying on indigenous people s of the

region.985 These were fully dealt with in the Counter -Memorial

and there is little to add. Again the single most important point

is Ecuador’s assertion that “the daily life of indigenous peoples

living on its side of the border had been particularly affected by
986
Colombia’s aerial spraying .” As was demonstrated in
Chapter 3, there is simply no evidence of affect, still less

particular affect on in digenous peoples. That being so there is

not even an arguable claim based on indigenous rights.

985 ER, paras. 7.53-7.79.
986 ER, para. 7.53.

496 E. Remedial Issues

70. In these circumstances, Ecuador’ s claim fails and it is

entitled to no remedy.

71. There is no case whatever for a “buffer zone” on
Colombian territory, of any extent. Such a zone, ordered by the

Court, would be a haven for criminals and a clear infringement

of Colombian sovereignty over its own territory. Likewise,

since neither the alleged damages, nor the issue of causation
linking them to the sprayings in Colombia have been

established, Ecuador’s claims for remedies are unwarranted.

497498 SUBMISSIONS

For the reasons set out in itsCounter-Memorial and in this

Rejoinder, Colombia requests the Court to adjudge and declare
that the claims of Ecuador, as set out in the Memorial of

28 April 2009 and the Reply of 31 January 2011, are rejected.

Colombia reserves the right to supplement or amend the present
submissions.

JULIO LONDOÑO PAREDES

Agent of Colombia

The Hague, 01 February 2012

499500 APPENDIX

ANALYSISOFECUADORIANWITNESS STATEMENTS
AS TO TIMINGANDLOCATIONOFSPRAYING
ANDALLEGED EFFECTS

501 APPENDIX

ANALYSIS OF ECUADORIAN WITNESS STATEMENTS AS TO
TIMING AND LOCATION OF SPRAYING AND ALLEGED EFFECTS

A. Introduction

1. In the present Appendix, Colombia will address each of the Ecuadorian witness

statements in turn in order to show that none of them are
However, firs,t it is important to note tworelevantaspects with regard to thestatements in
general.

2. As Colombia will show further below, all the accounts contain almost identical

elements which instead of contributing to their mutual corroboration as Ecuador suggests,
rather evidence that they are part of a prp-repared script. Those common elements mostly
comprise a litany of alleged effects on human heal th, animals, plants, crops and soil,

accompanied by statements as to never hav
final dramatic allegations. Doubtless, the statements are all very well crafted scripts, but

theirprefabrication is too obvious.

3. Additionally,all of the alleged effects on human health, animals, soil, plants and
crops in Ecuador are contradicted, first and foremost, because there was no spraying on

Ecuadorian territory and therefore no direct application of the spray mixture was conducted
there.Moreover, because under the actual windconditions in the relevant area

distances involved,drift is not an issue even for plants and crop
results of Hewitt’s modeling for each witness statement in turn. But more importantly,
because the spray mixture does not cause any of the alleged effects that the witnesses claim.

4. Indeed,in Chapters 2 and 3 of this Rejoinder Colombiahas set out the scientific

evidence2hat shows the lack of toxicological effects of the spray mixture for humans or
animals. Therefore,eachof the alleged effectswillnowbeaddressed very briefly
to confront them with the scientific evidence, and

the statements incur.

1 See CR, Vol. I, Chap. 2, sec. C , paras. 2.221-2.224; see also CR, Vol. II, Annex 19: Institute of
Hydrology, Meteorology and Environmental Studies (IDEAM), Climate Characterization of The Nariño and
Putumayo Border Zone With Ecuado,r7 Dec. 2011(hereinafter: IDEAM Climate Characterization (2011)).
2 SeeCR, Vol. I, Chap. 2, sec. BandChap. 3, paras. 3.3403

502 APPENDIX

ANALYSIS OF ECUADORIAN WITNESS STATEMENTS AS TO
TIMING AND LOCATION OF SPRAYING AND ALLEGED EFFECTS

A. Introduction

1. In the present Appendix, Colombia will address each of the Ecuadorian witness
statements in turn in order to show that none of them are worthy of any credibility.
However, firs,t it is important to note tworelevantaspects with regard to thestatements in

general.

2. As Colombia will show further below, all the accounts contain almost identical
elements which instead of contributing to their mutual corroboration as Ecuador suggests,
rather evidence that they are part of a prp-repared script. Those common elements mostly

comprise a litany of alleged effects on human heal th, animals, plants, crops and soil,
accompanied by statements as to never hav ing experienced anything similar before, and

final dramatic allegations. Doubtless, the statements are all very well crafted scripts, but
theirprefabrication is too obvious.

3. Additionally,all of the alleged effects on human health, animals, soil, plants and
crops in Ecuador are contradicted, first and foremost, because there was no spraying on
Ecuadorian territory and therefore no direct application of the spray mixture was conducted
1
there.Moreover, because under the actual windconditions in the relevant area and at the
distances involved,drift is not an issue even for plants and cr,sas will be shown with the

results of Hewitt’s modeling for each witness statement in turn. But more importantly,
because the spray mixture does not cause any of the alleged effects that the witnesses claim.

4. Indeed,in Chapters 2 and 3 of this Rejoinder Colombiahas set out the scientific
evidencethat shows the lack of toxicological effects of the spray mixture for humans or
2
animals. Therefore,eachof the alleged effectswillnowbeaddressed very briefly , in order
to confront them with the scientific evidence, andshowthe general falsity in which all of
the statements incur.

1 See CR, Vol. I, Chap. 2, sec. C , paras. 2.221-2.224; see also CR, Vol. II, Annex 19: Institute of
Hydrology, Meteorology and Environmental Studies (IDEAM), Climate Characterization of The Nariño and
Putumayo Border Zone With Ecuado,r7 Dec. 2011(hereinafter: IDEAM Climate Characterization (2011)).
2 SeeCR, Vol. I, Chap. 2, sec. BandChap. 3, paras-.358.03

Appendix page 1 (i) Alleged impacts on human health

5. According to the statements, alleged impacts on human health usually include
severeskin irritation and bumps appearing one or two weeks late,rand lasting for weeks

(some even claim that the effects lasted for 7 or 8 years ), eye burning sensation, and,
chiefly on children,headaches, vomit, fever and diarrhea.

6. In Chapters 2 and 3 of this RejoinderColombiademonstrated , in addition to the
falsity of the statements,thatthe allegedeffects are all beliedby the scientific evidencei,n

particular: specific studies such as CICAD I and II; the Alpha, Bravo and Charlie tests
(spray mixture);and several expert reports such as those submitted by Dr Solomon,Dr

Hewitt,Dr Dobson,Dr Williams and DrKrieger, whichshowthat the spraymix does not
pose ahealth riskfor humans or animal.s 3

7. Thetoxicologicalstudiesconductedon the spray mixture used inColombia’s spray

program,commissioned by the United States Department of State and reviewed by the EPA
(Alpha, Bravo and Charlie)a ,re particularly clear in this regard. 4

8. Indeed, after applying the mixture directly on rabbits, in much greater doses than

those derived from any conceivable exposure to aerial spraying, the dermal irritation study
on the mixture identified as “Charlie” concluded that “under the conditions of the test,
5
Spray-Charlie is considered to be a slight irritant to the skin of the rabbita ”nd that aslight
irritation appears and disappera s within the 24h -our interval following the applicatio.nThe 6
7
Alpha and Bravo studies reached similar conclusions.

9. Moreover, after feeding the mixture used in the spray program to rats, they found
that “[n]o mortality occurred during the limit test”.In fact, it is noteworthy that the studies

3
4 CR, Vol. I, Chapter 3, paras 3.3593-.377.
CR, Vol.V, Annex56:U.S. EPA, Memorandum of 13 May 2003, Technical Review of the six acute
5oxicity studies on the spray mixture for Eradication of Illicit Crops in Colombia.
CR, Vol.V, Annex 56-A: Six Acute Toxicity Studies with SprayCharlie,SLI Study N° 3596.16, 20
Feb. 2003, p. 175.
6 Ibid., p. 175.
7 “Exposure to the test article produced very slight erytand very slight edema on 2/3 and 1/3 test
sites, respectively, at the 1 hour scoring interval. The dermal irritation resolved on 2/3 test sites by 24 hour
scoring interval and the remaining test site study day.”7CR, Vol. V,Annex56-B: Six Acute Toxt Studies
with Spray-Alpha, SLI Study N° 3596.3, 3 Sep. 2002, p. 179; “Exposure to the test article produced very

slight erythema on 3/3 test sites at the 1 hour scoring interval. The dermal irritation resolved completely on all
test sites by study day 7.” CR, Vol. V,Annex56-C: Six Acute Toxicity Studies with SyBravo,SLI Study
8° 3596.10, 4 Sep. 2002,p.178.
CR, Vol. V,Annex56-A: Six Acute Toxicity Studies with Spra-yCharlie,SLI Study N° 3596.16, 20
Feb. 2003,p.8.

Appendix page 2found that “[b]ody weight gain was noted for all animals during the test period.”Hence,

no such symptoms as headaches, vomit, fever and diarrhea occur even under direct
application (which was never the case), either immediately or subsequently.

10. Some witnesses even claim to have suffered eye burning, and permanent or yea-rs
long effects in their eyes. These statements are also contradicted by the scientific evidence.

The toxicological studies conducted onthe spray-Charlie also observedthat even under
direct application of thespraymixture in a rabbit’s eyes, in much greater doses than those

derived from any conceivable exposure to aerial spraying, it only produced a mild irritation
or conjunctivitisat the 1-hour scoring interval which resolved completely in all test eyes by

the 24-hour scoring interval. Theconjunctival irritationhad resolved completely in all test
eyes by D ay 7of the study .

11. Some witnesses go as far as to accuse offensivelyColombia of allegedly causing
children deaths in Ecuador with the sprayings. As stated above, the studies conducted over

the spray-Charlie showed that no mortality in the animal tests-ubjectsoccurred during the
test. The scientific conclusion on the impossibility of lethal effects derived from any

conceivable actual exposure to the spray mix is so evident that Ecuadorh –aving obtained
the full record of these tests through FOIA requests to the United States Governmenh ta–s
had to acknowledge soin its Reply:“[t]rue, its effects on people might not necessarily be
10
fatal…”

(ii) Alleged loss of productivity/effects on soil

12. In Chapter 2,Colombia has demonstrated that the spray mixture does not cause the

effects alleged by Ecuador . In Chapter 3, Colombia has shown that the witnesses ’
allegations are unreliable, and g iven the location and manner in which the spraying was

conducted, the mixture could not have caused th aelleged harms to plants.

13. According to the scientific evidence,crops can be planted or transplanted on the
sprayed plot immediately after applicationI.t is widely acknowledged that glyphosate does
not have a long-lasting residual activity on soils.Its mean life on soils ranges from 1 to 4

weeks maximum; it does not act as a soil sterilizer and is not adsorbed by plant roots.
According to the EPA: “Glyphosate adsorbs strongly to soil and is not expected to move

vertically below the six inch soil la yer; residues are expected to be immobile in soil.
Glyphosate is readily degraded by soil microbes to AMPA, which is degraded to carbon
11
dioxide.” CICAD I stated that glyphosate has a short-lasting biological activity on soils

9 CR, Vol. V,Annex56-A: Six Acute Toxicity Studies with SyCharlie,SLI Study N° 3596.16, 20
Feb. 2003,p.8..
10 ER, para. 2.4.
11 EM, Vol. III, Annex 132, p. 4.

Appendix page 3and water; it is not biomagn fiied, does not move along the food chain, nor does it seep from
ground soil through to subterranean waters. Besides, Colombiahas alreadyshown that,
13
even in cases of direct overspra ,recovery invegetation cover occurs very fast.

14. Additionally , as stated in the Counter-Memorial, “[t]here are no reports of effects
on the soil function or fungi at soil concentration expected directly under the spray. There
14
is, therefore, no risk for soils.” This is corroborated by the results of the monitoringtests

conductedregularlyon soil and water samples from spray sites in Colombia, where no
traces of glyphosate have been found, thus confirming that the soil’s physiochemical
15
composition is unchanged.

(iii) Alleged impacts on animals

15. The witnesses also incur in evident falsehoods in their assertions as to alleged
adverse effects on animala ss a result of sprayin.gIn the script they tend to follow, thea ylso

claim that chickens were born or turned blind, others suffocated; pregnant cows had
miscarriages ; pigs, cows and horses lost their hair, and had skin lesions; and even allege

that certain animal species have disappear.ed

16. However,in Chapters 2 and 3 Colombia has also demonstrated thatglyphosate is
essentially non -toxic to farm animals.Indeed, in the toxicological studiesconducted on the
16
spray mixture, none of these effects are evenmentioned. On the contrary,after feeding
the mixtures used inthe spray program to rats, it wasfound that “[n]o mortality occurred
17
during the limit test”. In fact, it is noteworthy that the studies found that “[b]ody weight
gain was noted for all animals during the test period.” 18

17. Someof Ecuador’s witnesses ( Witnesses 2, 3, 5, 8, 10 and 12) also allegeto have

observed dead fish after the sprayings. Y,ee tven assuming direct overspray and exposuriet,
is scientifically impossible for glyphosate to accumulate in running was turch as riversand

therefore, for fish to die as a result.

12
13 CCM, Vol. III, Annex 11,6p.35.
See CCM, Vol. II, Annex 70, Appendix 1; See also CR, Vol. V, Annex 58, Appendix:
Implementation of the verification protocol JanuaryJ–uly 1998, carried out Octobe-3, 1998. Section 6:
Qualitative environmental evaluation of spraying and illegal crops,Section 6.2.: Environmental Impact of
Illegal Crops.
14 CCM, Vol. I,Appendix, para.122, p. 547.
15 CR, Vol. IV,Annex38: Records of Water Samples Analysis Results 200 -5007 in the framework of
the Program for the Eradication of Illicit Crops by Aerial Sprayinghlyphosate (PECIG); CR, Vol. IV,
Annex39: Records of Soil Samples Analysis Results 200 5-2008 in the framework of the Program for the

16adication of Illicit Crops by Aerial Spraying with Glyphosate (PECIG).
17 Seeaboveparas. 7-10
CR, Vol. V,Annex56-A: Six Acute Toxicity Studies with Spra-yCharlie,SLI Study N° 3596.16, 20
Feb. 2003,p.8.
18 Ibid., p. 8.

Appendix page 418. Moreover, as stated above, there was no spraying on Ecuadorian territory, and
deposition due to drift was zero or insignificant as will be shown for each statement

individually in the following sectionI.ndeed, the level of concern for amphibians, the most
sensitive animal speciesaccording to Ecuador, is 1,368 g/ha. Hewitt modeled the closest

spray events to the witnesses’ locations and calculated deposition values between 0.001 and
2.71 g/ha. The evident conclusion is that no effe sct erecaused in Ecuadorian territor.y

19. The apocalypticscenesdescribed by Ecuador’s witnesses are simply notpossible,
even in the event of direct application, a hsas been scientifically shown.

B. Further falsity in each of the witness statements

20. Having discredited the alleged effects, Colombia will now refer to each witness in

turn in order to show further falsiites found in their individualstatements.The issue of the
alleged effects on plants and crops will also be addressed in particular for e ach of the

witnesses.

21. All the allegations of spraying over Ecuadorian locations, over the border rivers or

close to the border contained in the witness statements submitted with Ecuador’s Memorial
are crossed-checkedbelowagainst the spray datafurnished to Ecuador by the Department
20
of State. Despite the vagueness of the testimony as to dates, or even particular years,
Colombiahaschecked every probable year on the basis of the content of the statements and

the locations referred therein. Onh te basis of this analysis Colombiawill showthat there
was no overspray of Ecuadorian territory contrary to the allegations of several of the

witnesses. Furthermore, in those cases where spray events were found in Colombian
territory for the years in question, Colombia will show that the distances involved –
between thespray events and the Ecuadorian bank on the border river or the witnesses’

reported locations– were such as to render it scientifically impossible for an oyf the alleged
damages andadverse effects inanimals, plants and crops to have occurred.

19 See CR, Vol. II, Annex 1: Dr A.J. Hewitt, Ph.D., Response to Report “Spray Drift Modeling of
Conditions of Application for Coca Crops in Colombia” by D.K. Gi,leJsan. 2011”, 1 Nov. 2011 (hereinafter:
Hewitt Report– Response to Giles (2011),)para. 8,p. 5; see also CCM, Vol. III, AB, p. 330.
20 All of the Witness Declarations rendered by persons living in Ecuawill be included in the
analysis. There are no Witness Declarations numbered 15, 16, 24, 25 or 35 (see EM, Vol. IV, Table of
Contents, pp. iii-iv). As for EM, Vol. IV, Annexes 225-233, since they consist of Declarations rendered by
Colombian nationals, residing in Colombia, with regard to eventsniColombia, they are outside the scope of
the present dispute (CCM, Vol. I, paras.4.-25).

Appendix page 5Appendix page 6 Witness 1
(EM, Vol. , Annex189)

Appendix page 7 0°20'N 0°15'N

76°50'W 76°50'W

km
5

4

3

2 Scale: 1:100,000
theSrpivthaewIniatnal boundary

Spray lineote:er

COLOMBIA Projection: UTM zone 18; Datum: WGS-84
0

DisDisnantctrioaueerar(l)a:lr062mmank
76°55'W ue 76°55'W
Mg
n
Sa
í
R

ECUADOR
Salinas (2)

Salinas (1)

77°0'W 77°0'W

PERU

COLOMBIA

DisDtina(ncetioaudeaEa(l)a:)389n0mmank

ECUADOR

SalSalnas)(-2l)o-csaeocatciounadEpcluyaE:c5u0a0d0pograhoimgapphic map PACIFIC
Figure 1. Salinas, Spray Lines in 2000 (Witnesses 1-2-3-6-7)
0°20'N 0°15'N

Appendix page 8 Salinas, 2000 (witness 1)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2000 (Witnesses 1-2-3-6-7)

OBJECTIDLINE_ID TIME ALTITURDAECK MPH HEADINSGSPRAY_RADTOEPSVUSEDDFSTNID ASCIINAMELENGTH MOSN WTAHTH MISSARNCRAF_C_CROCPOP
3813 002721 12:59:06.39 1,100 -39,591 1940,200 13,60 -18 l0260kdac 152,977 00Coca T505 T-65_CCooccaa
PARAMETERS 12:59 FEET MILES/HOUR 26 September 2000

ADDED ATTRIBUTES

Spray Line AltitudGround Altitude Spray Line Altitude over
over MSL (Metres)over MSL (Metres)Ground Level (Metres)
335 281 54

Attribute Table 1

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2000 (Witnesses 1-2-3-6-7)
OBJECTIDLINE_ID TIME ALTITURDAECK MPH HEADINSGSPRAY_RADTOEPSVUSEDDFSTNID ASCIINAMELENGTH MOSN WTAHTH MISSARNCRAF_C_CROCPOP

5422 003293 13:44:19.25 1,200 37,881 911,8257,0820 91,7009100 l310cfcc 201,637 Co0c0a12 T-65 50 T-65_CCooccaa
PARAMETERS 13:44 FEET MILES/HOUR 31 September 2000

ADDED ATTRIBUTES
Spray Line AltitudGround Altitude Spray Line Altitude over
over MSL (Metres)over MSL (Metres)Ground Level (Metres)
365 299 66

Attribute Table 2

SALINAS 1:

Distance to Salinas location: 4,490 metres, over four kilometres.

Distance to the Ecuadorian bank on the border river: 3,890 metres, nearly four kilometres.

SALINAS 2:

Distance to Salinas location: 2,377 metres, over two kilometres

Distance to the Ecuadorian bank on the border river: 2,062 metres, over two kilometres

21
Hewittmodeledtheseevents and estimateddeposition valuesof0.01 g/ha and 0.099g/ha,

respectively. The level of concern for amphibians, the most sensitive animal species
22
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

21
CR, Vol. II, Annex 2: Dr A.J. Hewitt, Ph.D., Aerial Spray Drift Modeling of Plan Colombia
Applications, 1 Nov. 2011 (hereinafter: Hewitt Spray Events Modeling (2011)), pp. 4-5, Table of Model

Results, rows 69 and53.
22 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol.III, Annex 131 -B, p. 330.

Appendix page 9 0°20'N 0°15'N

76°55'W 76°55'W

theSrpivrathaewIniatknal boundary

Spray lineNote:er

COLOMBIA Projection: UTM zone 18; Datum: WGS-84
0 1 2 3 4 5 km

Salinas (2)

Salinas (1)

77°0'W 77°0'W

DisDisncanhctrioaudeerar(l)a4:2r750mbmank

le
ui
Mna
S í
R

ECUADOR

SalSalnas)(-2l)o-csaetocEatciounadfEpcluyaaE:c5u0a0d0o0rT1o:5

DisDtintantctrioaudeerEa(u)a3:3r13n1mmank
PERU

77°5'W 77°5'W

COLOMBIA

ECUADOR

PACIFIC
Figure 2. Salinas, Spray Lines in 2001 (Witnesses, 1-2-3-4-5)
0°20'N 0°15'N

Appendix page 10 Salinas, 2001(witness 1)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2001 (Witnesses 1-2-3-6-7)

OBJECTIDLINE_ID TIME ALTITXRECK MPH HEADINSGSPRAY_RATEOPSVUSEDDFSTNID ASCIINAMELENGTH MOSNTATHTYPEAIRCRAFTLOG SOURCETHMAC_CROP
13644 002771 07:36:22.30 1,200 502,57 2 165,1020 1,8009,16100 101 a041j#ac 0 0101 50oca T-65 a041j#ac 2001_sl_lines.sT-65_Coca
PARAMETERS 07:36 FEET MILES/HOUR 04 January 2001

ADDED ATTRIBUTES
Spray Line AltitudGround Altitude Spray Line Altitude over

overMSL(Metres) overMSL(Metres) Ground Level (Metres)
365 295 70
Attribute Table 3

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2001 (Witnesses 1-2-3-6-7)
OBJECTIDLINE_ID TIME ALTITTRDAECK MPH HEADINSGSPRAY_RATOPSVUSEDDFSTNID ASCIINAMELENGTH MOSNWTHTTYPEAIRCRAFTLOG SOURCETHMAC_CROP

14039 001711 12:18:52.05 1,200 215,841 156,00400,900 11119,700 a051djdc 0,006 010C1oca T-560a051djdc 2001_sl_lines.shT-65_Coca
PARAMETERS 12:18 FEET MILES/HOUR 05 January 2001

ADDED ATTRIBUTES
Spray Line AltitudGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)

365 286 79
Attribute Table 4

SALINAS 1:

Distance to Salinas location: 4,481 metres, over fou anr-d-a-half kilometres.

Distance to the Ecuadorian bank on the border river: 3,131 metres, three kilometres

SALINAS 2:

Distance to Salinas location: 3,050 metres, over three kilometres

Distance to the Ecuadorian bank on the border river: 2,750 metres, nearly three kilometres.

Hewitt modeled these events and estimated deposition values of 0.106 g/ha and 0.167

g/ha, 23 respectively. The level of concern for amphibians, the most sensitive animal species

24
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

23
CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (201,1p )p. 4-5, Table of Model Results , rows
51 and44.
24
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol.III, Annex 131 -B, p. 330.

Appendix page 11Witness 1:

The witness states that he has lived in the community of Salinas, on the border of the
province ofSucumbíos, Ecuador, for thirty yearsH . e says that hisfarm starts on the banks
25
of the San Miguel Rive.r

26
Salinas, according to the location providedin the Ecuadorian Reply, hereinafter referred
to as Salinas 1, is located approximately 1.07 km from the borderH . owever,according to
satellite images there is no village in that location. Therefore, in the interest of

completeness and to dispel any doubts, Colombia has alsolocated the closest community
on satellite images, hereinafter referred to as Salinas 2, located at 2.7 km from Salinas 1.

This location is over hal-fa-kilometre off the Colombian bank of the border river.

Though the witnessstates that “he hasexperienced border sprayings in hisvillage several

times – even twice a year”, he refers mostlyto the alleged effects of the “first time that
aerial sprayingsbegan”, when hewas in the shore of the rive .r7

Given that the witness says nothing with regard to the approximad tateof “[t]he first time
that aerial sprayings began”, in an effort to determine whether the testimony has any basis,

Colombia infers thathe must havebeen referring to 2000 or 2001, as those were thefirst
years when spraying operations took place closest to the witness’slocation.

According to the Spray Data from the Department of State, that Ecuador places such
reliance on, containing the records for all the spray events, in 2000, the spray event closest

to the border was at a distance of4,500 metresfrom Salinas 1, and 3909 metres, i.en .early
four kilometresfrom the Ecuadorian bank on the border river.The spray event closest to

Salinas 2 that same year was at a distance of 2,392 metref sromthe communityand 2,091
metres from the border(see Figure1). In 2001, the spray event closest to the border was at
a distance of 4,563 metresfrom Salinas 1, and 4,002 metresfromthe Ecuadorian bank on

the border river.The spray event closest toSalinas 2 that same year was at a distance of
3,065 metres, i.e over two kilometres from the community and 2,777 metres from the

border(see Figure2).

All of these events were sprayingo sn Colombian territory, at distances of between nearly 3
and 5 kilometres of the two Salinas locations, and yet the witness claim hat “[t]he planes
flew along the edges of the river, some spraying as far as the riverba ”,andthat he “also

sensed a strange odor”.The falsehood is evident.

25 EM, Vol. IV, Annex 189.
26
27 ER, Vol. I, figures 2.4, 2.6, 2.11, 2.13, 3.3.
EM, Vol. IV, Annex 189.

Appendix page 12The witness further alleget shatsoon after the spraying, his crops started turning yellow and
dying. However, there was definitelyno spraying on Ecuadorian territory and therefore no

direct application of the spray mixture was conducted there. Additionallu y, der the actual
atmospheric conditions in the relevant area, the plausibility of drift going south towards

Ecuador is unlikely. But, more importantly: drift in fact is not an issue at the distances
involved. Indeed, Hewitt modeled these events under actual spraying conditions and

estimated deposition values of 0.01 g/ha, 0.099 g/ha, 0.106 g/ha and 0.167 g/ha,
respectively. 29 The level of concern for amphibians, the most sensitive animal species
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 30

This shows that no damage could have been caused in Ecuador.

This was further confirmed withsatellite imagery of the time of the first sprayings in the
area, which shows that very little change in vegetation condition occurred and that the

changes identified were merely a result of normal agricultural activiti,ec sontrary to what
the witness states .1

Although the falsity of the testimony has been shown, it is relevant to recall that all the
32
alleged effects claimedin this statement are all contradicted by the scientific evidence.
Furthermore, all the elements containeid n the statement arealmost identical to those of the

other witness statements, evidencing that they are part of a pre- prepared script. Those
elements are the following:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps.I“got a terrible skin irritation a week
or two after the planes came by. I broke out in a rash all over my body, and it

itched. It was so severe that I had to go to Lago Agrio to seek treatment.” “My
two nephews were also sick with itching. My son [REDACTD E] also got sick

with blisters that were like little water bubbles. They itched a lot and it seemed
as if they were about to bleed when he scratched.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea “.Every
time they sprayed, the children had diarrhea and fever, in addition to the

itching.”

28 See CR, Vol. I, Chap. 2, sec, paras. 2.221-2.224; see alsoCR, Vol. II,Annex 19: IDEAM Climate

29aracterization (2011).
CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011),p. 4-5, Table of Model Resul, rows
30, 53, 51and44, respectively.
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
31l.III, Annex 131-B, p. 330.
See CR, Vol. II,Annex 6:Dr B.M. Evans, Ph.D.,Expert Report by DrBarry M. Evans, Dec. 2011,
paras. 3.70- 3.77, pp. 64-73; “[I]t is my opinion that the changes identified inthe Salinas study area were
merely a result of normal agricultural acte,sIbid., para. 3.77, p. 73.
32 See aboveparas.5-19.

Appendix page 13• Loss of crops, and plants turning yellow“.Soon after the spraying, my crops started
turning yellow and dying. The tallest fruit trees, such as the zapot,ewere the first

ones to be affected. Tese tall trees were the first to dry up at the top. They did not
die completely although they did dry up, and no longer produced fruit. The plantain
trees were also destroyed quickly. The plantain, planted next to my house, which is

a few meters from theirver, died first. The plant was undernourished, falling to one
side, and the fruit started to die. My coffee also had spots. The plantain finally
turned black. The pastures were also lost, the grass turned yellow and died.”

• Effects on soil and subsequent loss of productivity measured in quintals.“Before
the sprayings began in our area, I used to sell a lot of coffee. I had sixteen (16)
hectares planted with coffee, and each hectare produced sixty (60) to eighty (80)

quintals of the product annually. Now, Ican barely harvest eight quintals of coffee
per hectare each year.”

• Alleged impacts on animals. “The few livestock that I had were also affected a
week or two after the first spraying. The few that survived did not escape being sick
in the next sprayings.A cow that had never been sick before had a spot on her back

as if it were scabies and part of it peeled completely; she had no skin and the flesh
could be seen, it even looked as if it was going to bleed.” “The pregnant cows were
not able to have normal offspring. One calf was born ahead of its time and dead.

Three other were born undernourished and a few weeks after birth they all died. A
pig also got sick, which lost its hair; the hair fell off gradually, until almost all the
hair on its back was gone.”

• He/she had never experienced anything similar befor“ eA. cow that had never been
sick before had a spot on her back…]”
• Final dramatic statements.I“have been strong so as to resist. But it is hard to see all

your efforts wasted without having anf yault. I have given all my youth to my farm.
All my efforts, since I was seventeen years old, have been invested in my land and
plants. To lose it all in a few days has been very difficult. And, restarting and

replanting, knowing that the loss would return every time I saw those planes
spraying near my house, has been even harder”.

Appendix page 14 Witness 2
(EM, Vol. , Annex190)

Appendix page 15 0°20'N 0°15'N

76°50'W 76°50'W

Scale: 1:100,000
theSrpivthaewIniatnal boundary

BordeNote:er
Spray line
COLOMBIA Projection: UTM zone 18; Datum: WGS-84
0 1 2 3 4 5 km

76°55'W DisDisnantctrioaueerar(l)auer062mmank 76°55'W
ig
nM
Sa
í
R

Salinas (2) ECUADOR

Salinas (1)

77°0'W 77°0'W

PERU

COLOMBIA

DisDtina(ncetioaudeaEa(l)a:)389n0mmank

ECUADOR

SalSalnas)(-2l)o-csaeocatciounadEpcluyaE:c5u0a0d0pograhoimgapphic map PACIFIC

0°20'N 0°15'N Figure 1. Salinas, Spray Lines in 2000 (Witnesses 1-2-3-6-7)

Appendix page 16 Salinas, 2000 (witness 2)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2000 (Witnesses 1-2-3-6-7)
OBJECTIDLINE_ID TIME ALTIXTDAECK MPH HEADINSGSPRAY_RAD TEPSVUSEDDFSTNID ASCIINAME LENGTH MOSN WTHTH MISSAIIRCRAFT_C_CRCPOP

3813 002721 12:59:06.39 1,100 -39,59 1 194,0200 13,6008 -18 0l260kdac 152,977 001C2oca T5-065 T-65_CCooccaa
PARAMETERS 12:59 FEET MILES/HOUR 26 September 2000

ADDED ATTRIBUTES
Spray Line AltitudeGround AltitudeSpray Line Altitude over
over MSL (Metres)over MSL (Metres) Ground Level (Metres)
335 281 54

Attribute Table 1

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2000 (Witnesses 1-2-3-6-7)

OBJECTIDLINE_ID TIME ALTIXTDAECK MPH HEADINSGSPRAY_RAD TEPSVUSEDDFSTNID ASCIINAME LENGTH MOSN WTHTH MISSAIIRCRAFT_C_CRCPOP
5422 003293 13:44:19.25 1,200 37,88 1 9112,780201,2009,71000 9100 l310cfcc 201,637 C0o0c1a2 T-6550 T-65_CCooccaa

PARAMETERS 13:44 FEET MILES/HOUR 31 September 2000
ADDED ATTRIBUTES

Spray Line AltitudeGround AltitudeSpray Line Altitude over
over MSL (Metres)over MSL (Metres) Ground Level (Metres)
365 299 66

Attribute Table 2

SALINAS 1:

Distance to Salinas location: 4,490 metres, over four kilometres.

Distance to the Ecuadorian bank on the border river: 3,890 metres, nearly four kilometres.

SALINAS 2:

Distance to Salinas location: 2,377 metres, over two kilometres

Distance to the Ecuadorian bank on the border river: 2,062 metres, over two kilometres

Hewittmodeledthese events and estimateddepositionvaluesof 0.01 g/ha and 0.099g/ha,
33
respectively. The level of concern for amphibians, the most sensitive animal species
34
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

33 CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011)p ,p. 4-5, Table of Model Results , rows

69 and53.
34 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol.III, Annex 131 -B, p. 330.

Appendix page 17 0°20'N 0°15'N

76°55'W 76°55'W

theSrpivrathaewIniatknal boundary

Spray lineNote:er

COLOMBIA Projection: UTM zone 18; Datum: WGS-84
0 1 2 3 4 5 km

Salinas (2)

Salinas (1)

77°0'W 77°0'W

DisDisncanhctrioaudeerar(l)a4:2r750mbmank

le
ui
Mna
S í
R

ECUADOR

SalSalnas)(-2l)o-csaetocEatciounadfEpcluyaaE:c5u0a0d0o0rT1o:5

DisDtintantctrioaudeerEa(u)a3:3r13n1mmank
PERU

77°5'W 77°5'W

COLOMBIA

ECUADOR

PACIFIC

0°20'N 0°15'N Figure 2. Salinas, Spray Lines in 2001 (Witnesses, 1-2-3-4-5)

Appendix page 18 Salinas, 2001 (witness 2)

Metadata of the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2001 (Witnesses 1-2-3-6-7)

OBJECTIDLINE_ID TIME ALTIUTDREACK MPH HEADINS SPRAY_RATDEOPSV USEDDFSTNID ASCIINAMELENGTH MONSTHATHTYPEAIRCRAFTLOG SOURCETHMAC_CROP
13644 002771 07:36:22.30 1,200 502,57 2165,1200 1,890,0600101 -1 a041j#ac 0 0101 50Coca T-65 a041j#ac 2001_sl_lines.shT-65_Coca
PARAMETERS 07:36 FEET MILES/HOUR 04 January 2001

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over

overMSL(Metres) overMSL(Metres) Ground Level (Metres)
365 295 70
Attribute Table 3

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2001 (Witnesses 1-2-3-6-7)
OBJECTIDLINE_ID TIME ALTITXUTDREACK MPHHEADINSGSPRAY_RATDEOPSVUSEDDFSTNID ASCIINAMELENGTH MOSNWTHATHTYPEAIRCRAFTLOG SOURCETHMAC_CROP

14039 001711 12:18:52.05 1,200 215,84 1 156,0400 0,9017090 0 -1 a051djdc 0,006 0101Coca T5-065 a051djdc 2001_sl_lines.sh T-65_Coca
PARAMETERS 12:18 FEET MILES/HOUR 05 January 2001

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)

365 286 79
Attribute Table 4

SALINAS 1:

Distance to Salinas location: 4,481 metres, over fou anr-d-a-half kilometres.

Distance to the Ecuadorian bank on the border river: 3,131 metres, three kilometres

SALINAS 2:

Distance to Salinas location: 3,050 metres, over three kilometres

Distance to the Ecuadorian bank on the border river: 2,750 metres, nearly three kilometres.

Hewitt modeled these events and estimated deposition values of 0.106 g/ha and 0.167
35
g/ha, respectively. The level of concern for amphibians, the most sensitive animal species
36
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

35
CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011)p ,p. 4-5, Table of Model Results , rows
51 and44.
36
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol.III, Annex 131 -B, p. 330.

Appendix page 19 0°20'N 0°15'N

km
5

76°55'W 76°55'W
4

3

2
theSrpivraeyr iasrethaewInittheirnn2atkiomnal boundary

1
Spray lineote:er

COLOMBIA Projection: UTM zone 18; Datum: WGS-84
0

Salinas (2)

Salinas (1)

77°0'W 77°0'W

DisDtintantcetroauteeaEa(ulla:)176n0mmank
eg
iM
naS
oíR

ECUADOR

SalSalna(s)(-2l)o-csaetocatciounadfEpcluyaaE:c5u0a0d0o0rT1o:5

DisDtintantctrioaudeerEa(u)a5:2r49n8mmank
PERU

77°5'W 77°5'W

COLOMBIA

ECUADOR
OCEAN
PACIFIC
Figure 3. Salinas, Spray Lines in 2002 (Witnesses 2-3)
0°20'N 0°15'N

Appendix page 20 Salinas, 2002(witness 2)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2002(Witnesses 2-3)

OBJECTISEG FILE_NAMEMISSIOSNIDELINESTART_TIME LALTUGDITEUADLEDEPFLT_TIME FLT_LENGTS HPEEDTVEOLUAEEALOG LENGTH MSOW NATTAHIRCRAFT AC_RCO_PCROP
21443 914 I082EZBCR.Big9h9t12:115-:230:0.28979779 -76.98222492 1097 0,770 00,1 I002E5Z,6BC 74,,8700201974,5CoaT-65_CoTc-a65

PARAMETER0S8 September 2002 12:15 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
333 285 48
Attribute Table 5

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2002(Witnesses 2-3)
OBJECTISEG FILE_NAMEMISSIOSNIDELINESTART_TIMELALTOITNUGDIETUADEOPFLT_TIME FLT_LENGTHSPEEODTEVOLAEREALOG LENGTH MO SNTAHHIRCRAFT C_O_PCROP
23513 2994 I082KBCC.RBi9g9ht51380:14-01:20.28433029 -76.95826520 1047 0,890 0,20 I005812,4KBC,90501,105220,9400 Co5c0aT-65_CTo-c6a5

PARAMETER0S8 September 2002 13:40 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
318 282 36

Attribute Table 6

SALINAS 1:

Distance to Salinas location: 3,228 metres, over three kilometres.

Distance to the Ecuadorian bank on the border river: 2,498 metres, nearly two and a half

kilometres.

SALINAS 2:

Distance to Salinas location: 2,054 metres, over two kilometres.

Distance to h te Ecuadorian bank on the border river: 1,760 metres, nearly two kilometres.

Hewittmodeledthese events and estimateddeposition valuesof 0.11 g/ha and 0.015g/ha,

37
respectively. The level of concern for amphibians, the most sensitive animal species
38
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

37
CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011)p ,p. 4-5, Table of Model Results , rows

49 and 68.
38 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol.III, Annex 131 -B, p. 330.

Appendix page 21Witness 2:

The witnessstates that he has lived in Salinas, province of Sucumbíos, fory 27ars, and his

farm is located on the banks of the San Miguel River, which separates Ecuador from
Colombia.According to the witness, the first fumigationts hat allegedly caused effects took

place 7 or 8 years before the date of his statement , which was rendered on 16 January
2009. 39

In a verification effort, on such a vague basis, Colombia infers that the witness must have

been referring to 2000, 2001 or 2002as “the first fumigations”. Indeed, according to the
Spray Data from the Department of State,and as shown in Figures 1, 2 and 3, the spray

events closest to Salinas 1 in those years were at 4,500 metres, 4,563 metres and 3,248
metres from the community, respectively; and 3,909, 4,002 and 2,540 metres from the

Ecuadorian bank on the border river. For the same years, the closest spray events from
Salinas 2 were at distances of 2,392 metres , 3,065 metres, and 2,070 metres from the
community,and 2,091, 2,777, and 1,790metresfrom the Ecuadorian bank on the border

river.

All of these events were sprayings on Colombian territory, at distances of between 2 and
nearly 5 kilometres of the two Salinas locations, and yet the witness claims that “ [t]he

planes were flying, dropping a white liquid that with the wind came quickly toward us. The
product had a strong odor […]”H . e also claims loss of crops and alleged effects on plants:

“On my farm I had planted plantain, yucca and coffee. The first spraying destroyed
everything.”

None of these alleged effects are possible not only because of the distances involved.

Meteorological analysesalso show that for most of the year, predominant winds in the
border area blow from Ecuador towards Colombia and their speeds are low. 40 This can be
clearly seen in the multiannual average for Median Wind Speed, in Colombia’s Atlas of
41
Winds and Eolic Energ.y

Anyway,Hewitt also modeled these events considering actualspraying conditions. He
estimateddownwinddeposition valuesof 0.01 g/ha, 0.099 g/ha, 0.106 g/ha, 0.167 g/ha,
42
0.11 g/ha and 0.015g/ha, respectively. As already noted above, h te level of concernfor
amphibians, the most sensitive animal species according to Ecuador, is 1,368 g/ha; and

39 EM, Vol. IV, Annex 190.
40 See CR, Vol. I, Chap. 2, sec. C, paras.2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011.)
41 Available at: https://documentacion.ideam.gov.co/openbiblio/Bvirtual/019813/Capitulo1…, p. 33.
42 CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (201,p. 4-5, Table of Model Results, rows
69, 53, 51,44,49 and 68,respectively.

Appendix page 22between 36 and 1,958 g/ha for various crops. Definitelyno damage, not even for plants

and crops,could have been caused in Ecuado(ror Colombia, for that matter .)

Furthermore, the witness’a sllegations with regard to crops and plants were alsc oonfronted

with satellite imagery of the time of the first sprayings in the area. From the analysis it is
possible to conclude that very little change in vegetation condition occurred in the Salinas
44
areaand that the changes identified were merely a result of normal agricultural activities.

Thus, thestatement’sfalsehood is eviden.tUnder actual wind trends in the area and at the

distances involved, the spray mix could not have possibly travelled and reached the
witness’slocation to the amount that an odor could have possibly been sensed, or effects on

plants could have been producedA . ll the witness’sclaims arethus contradicted.

Finally, Colombia cannot abstain from showing to the Court the statement’s pattern which

clearly evidence tha,tasallthe statements,it has beenpreviously set up.

• Alleged impacts on human health:
− Serious skin irritation/itching and bumps. “[A t t]he same moment, I felt burning

in my nose and throat. A few days later, my body broke out with bumps that
itched intensely.” “I still have the scars from those bumps.”

− Eye burning/Chieflyon children:headaches, vomit, fever and diarrhea.“I also
suffered from strong headaches and dizziness a few weeks after the planes came
by spraying.” “During each spraying, the children in the community and

neighbors that also live on the banks of the r vier became sick with diarrhea and
vomiting.”

• Loss of crops, and plants turning yellow “.On my farm I had planted plantain, yucca
and coffee. The first spraying destroyed everything. The plantain leaves turned
yellow, they started to bend until they fell off. The plantain and yucca dried up

faster than the coffee.”
• Effects on soil and subsequent loss of productivity measured in quintal“sB . efore, I

could get about twenty -five quintals of coffee per hectare, then after the sprayings, I
do not even get three. After a while, I replanted, but the plants did not produce as
before. The plantain, when looking at it, seemed nice, green, but once it was cut,

inside it was in a poor state and inedible. Before, I could get about sixty quintals of
maize, but after the sprayings, I do not even get five.”

43
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
44l.III, Annex 13-B, p. 330.
See CR, Vol. II,Annex 6:Dr B.M. Evans, Ph.D.,Expert Report by DrBarry M. Evans, Dec. 2011,
paras. 3.70- 3.77, pp. 64-73; “[I]t is my opinion that the changes identified in the Salinas study area were
merely a result of normal agricultural activitiepara. 3.77, p. 73.

Appendix page 23• Alleged impacts on animals.“In the days after the sprayings, dead fish started to
appear, especially bocachico and shad. In the past years, animal species have

disappeared. Before, we used to see a lot of monkeys and prarots around the farm
and in nearby mountains. Now, one seldom sees a monkey or a parrot.” “[T]he
animals lost their hair and died. Fifty percent of my chickens died, the same with

the fish.”
• He/she had never experienced anything similar befo“ rN.everbefore did I have this
type of bumps all over my body […]”.

• Final dramatic statements.People have nothing to eat and we have no one to turn
to. What used to be paradise for us has become a hell from which we cannot
escape”.

Appendix page 24 Witness 3
(EM, Vol. , Annex191)

Appendix page 25 0°20'N 0°15'N

76°50'W 76°50'W

Scale: 1:100,000
theSrpivthaewIniatnal boundary

Spray lineote:er

COLOMBIA Projection: UTM zone 18; Datum: WGS-84
0 1 2 3 4 5 km

DisDisnantctrioaueerar(l)a:2r062mmank
76°55'W ue 76°55'W
ig
nM
Sa
í
R

Salinas (2) ECUADOR

Salinas (1)

77°0'W 77°0'W

PERU

COLOMBIA

DisDtina(ncetioaudeaEa(l)a:)389n0mmank

ECUADOR

SalSalnas)(-2l)o-csaeocatciounadEpcluyaE:c5u0a0d0pograhoimgapphic map PACIFIC

0°20'N 0°15'N Figure 1. Salinas, Spray Lines in 2000 (Witnesses 1-2-3-6-7)

Appendix page 26 Salinas, 2000(witness 3)

Metadata of the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2000 (Witnesses 1-2-3-6-7)

OBJECTIDLINE_ID TIME ALTIXTDREACK MPH HEADINGS SPRAY_RATDEOPSV USEDDF STNID ASCIINAME LENGTH MONSTWHATH MISSIA ORCRAFAT_C_CROCPROP
3813 002721 12:59:06.39 1,100 -39,59 1194,200 0 3,6001 8 8-1 0 l260kdac 152,977 0012 Coca50 T-65 T-65_CCooccaa
PARAMETERS 12:59 FEET MILES/HOUR 26 September 2000

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) GroundLevel (Metres)
335 281 54

Attribute Table 1

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2000 (Witnesses 1-2-3-6-7)
OBJECTIDLINE_ID TIME ALTIXTDREACK MPH HEADINGS SPRAY_RATDEOPSV USEDDF STNID ASCIINAME LENGTH MONSTWHATH MISSIA ORCRAFAT_C_CROCPROP

5422 003293 13:44:19.25 1,200 37,88 1185,89210,2111,7,20000 9 100 l310cfcc 201,637 001C2oca 5T0-65 T-65_CCooccaa
PARAMETERS 13:44 FEET MILES/HOUR 31 September 2000

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
365 299 66

Attribute Table 2

SALINAS 1:

Distance to Salinas location: 4,490 metres, over four kilometres.

Distance to the Ecuadorian bank on the border river: 3,890 metres, nearly four kilometres.

SALINAS 2:

Distance to Salinas location: 2,377 metres, over two kilometres

Distance to the Ecuadorian bank on the border river: 2,062 metres, over two kilometres

Hewittmodeledthese events and estimateddeposition valuesof 0.01 g/ha and 0.099g/ha,

respectively. 45 The level of concern for amphibians, the most sensitive animal species

46
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

45
CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011)p ,p. 4-5, Table of Model Results , rows
69 and53.
46
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol.III, Annex 131 -B, p. 330.

Appendix page 27 0°20'N 0°15'N

76°55'W 76°55'W

Scale: 1:100,000
theSrpivrathaewIniatknal boundary

Spray lineNote:er
COLOMBIA
0 1rojecti2n: UTM3zone 14; Datu5 kmGS-84

Salinas (2)

Salinas (1)

77°0'W 77°0'W

DisDisncanhctrioaudeerar(l)a4:2r750mbmank

l
eui
Mn
aS
íR

ECUADOR

SalSalnas)(-2l)o-csaetocEatciounadfEpcluyaaE:c5u0a0d0o0rT1o:5

DisDtintantctrioaudeerEa(u)a3:3r13n1mmank
PERU

77°5'W 77°5'W

COLOMBIA

ECUADOR

PACIFIC

0°20'N 0°15'N Figure 2. Salinas, Spray Lines in 2001 (Witnesses, 1-2-3-4-5)

Appendix page 28 Salinas, 2001 (witness 3)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2001 (Witnesses 1-2-3-6-7)

OBJECTIDLINE_ID TIME ALTITXUTDREACK MPHHEADINSGSPRAY_RATDEOPSVUSEDDFSTNID ASCIINAMELENGTH MONSTHATHTYPEAIRCRAFTLOG SOURCETHMAC_CROP
13644 002771 07:36:22.30 1,200 502,57 2165,12001,8090,601101 -1 a041j#ac 0 0101 50Coca T-65 a041j#ac 2001_sl_lines.shT-65_Coca
PARAMETERS 07:36 FEET MILES/HOUR 04 January 2001

ADDED ATTRIBUTES

Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
365 295 70
Attribute Table 3

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2001 (Witnesses 1-2-3-6-7)

OBJECTIDLINE_ID TIME ALTITXREACK MPH HEADINSGSPRAY_RATEOPSVUSEDDFSTNID ASCIINAMELENGTH MOSNW TATHTYPEAIRCRAFTLOG SOURCETHMAC_CROP
14039 001711 12:18:52.05 1,200 215,84 1 156,0040 0,900111,710 -1 a051djdc 0,006 011oca T5-065 a051djdc 2001_sl_lines.shT-65_Coca
PARAMETERS 12:18 FEET MILES/HOUR 05 January 2001

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over

overMSL(Metres) overMSL(Metres) Ground Level (Metres)
365 286 79
Attribute Table 4

SALINAS 1:

Distance to Salinas location: 4,481 metres, over foa ur-d-a-half kilometres.

Distance to the Ecuadorian bank on the border river: 3,131 metres, three kilometres

SALINAS 2:

Distance to Salinas location: 3,050 metres, over three kilometres

Distance to the Ecuadorian bank on the border river: 2,750 metres, nearly three kilometres.

Hewittmodeledtheseevents and estimateddeposition valuesof 0.106 g/ha and 0.167g/ha,
47
respectively. The level of concern for amphibians, the most sensitive animal species
48
according to Ecuador, is 1,368 g/ha; andbetween 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

47
CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011)p ,p. 4-5, Table of Model Results , rows

51 and 44
48 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol.III, Annex 131 -B, p. 330.

Appendix page 29 0°20'N 0°15'N

km
5

76°55'W 76°55'W
4

3

2
theSrpivraeyr iasrethaewInittheirnn2atkiomnal boundary

1
Spray lineote:er

COLOMBIA Projection: UTM zone 18; Datum: WGS-84
0

Salinas (2)

Salinas (1)

77°0'W 77°0'W

DisDtintantcetroauteeaEa(ulla:)176n0mmank
eg
iM
naS
oíR

ECUADOR

SalSalna(s)(-2l)o-csaetocatciounadfEpcluyaaE:c5u0a0d0o0rT1o:5

DisDtintantctrioaudeerEa(u)a5:2r49n8mmank
PERU

77°5'W 77°5'W

COLOMBIA

ECUADOR
OCEAN
PACIFIC
Figure 3. Salinas, Spray Lines in 2002 (Witnesses 2-3)
0°20'N 0°15'N

Appendix page 30 Salinas, 2002 (witness 3)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2002 (Witnesses 2-3)
OBJECTISEG FILE_NAMEMISSIOSNIDELINESTART_TIME LALITNUGDIETUADLDEOPFLT_TIME FLT_LENGTHSPEEODTEVOLUAEREA LOG LENGTH MO SNTAHHIRCRAFT AR_C_PCROP
21443 914 I082EZBCR9ig9ht3431022:30:70 0.28979779 -76.98222492 1097 0,770 0,10 0I2058,26EZBC 4,770,0127049,C5o0caT-65_CTo-6ca5

PARAMETER0S8 September 2002 12:15 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
333 285 48
Attribute Table 5

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2002 (Witnesses 2-3)
OBJECTIDSEG FILE_NAMEMISSIOSNIDELINESTART_TIME LATLUGDEITDLETITUDDEOPFLT_TIME FLT_LENGTHSPETEVOLUMAEREA LOG LENGTH MOSNWTAHHIRCRAFT CARCP_CROP
23513 2994 I082KBCC.BR9i9ght31081:-410:280.28433029 -76.95826520 1047 0,890 0,2 0 510I,0482KBC1C0,51050,951 152C5o0caT-65_TC-o6c5a

PARAMETER0S8 September 2002 13:40 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
318 282 36

Attribute Table 6

SALINAS 1:

Distance to Salinas location: 3,228 metres, over three kilometres.

Distance to the Ecuadorian bank on the border river: 2,498 metres, nearly two and a half

kilometres.

SALINAS 2:

Distance to Salinas location: 2,054 metres, over two kilometres.

Distance to the Ecuadorian bank on the border river: 1,760 metres, nearly two kilometres.

49
Hewittmodeledtheseevents and estimateddeposition valuesof0.11 g/ha and 0.015g/ha,

respectively. The level of concern for amphibians, the most sensitive animal species
50
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

49
CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 5-, Table of Model Results , rows
49 and 68.
50
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131 -B, p. 330.

Appendix page 31Witness 3:

The witnessstates that he has lived allhis life in Salinas,province of Sucumbíos, Ecuado .r

Hedoes not refer to any specific date but hc elaimsthat hewas working on hisfarm, seven
or eight years ago, when hesaw planes and helicopters flying over the San Miguel River,

over his community, which is on the banks of the river . Allegedly the effects appeared
fifteen days later.1

In a verification effort, Colombiaagaininfers that “seven oreight years ago” means2000,

2001 or 2002, considering that the statement was rendered on 17 January 2009.Indeed,
according to the Spray Data from the Department of State, the spray events closest to

Salinas 1 in those years were at 4,500 metres, 4,563 metres and 3,248 metres from the
community, respectively; and 3,909, 4,002 and 2,54m 0 etresfromthe Ecuadorian bank on

the border river. For the same years, the closest spray events from Salinas 2 were at
distances of 2,392 metre,s3,065 metres, and 2,070 metresfrom the community, and 2,091,
2,777, and 1,790 metres from the Ecuadorian bank on the border river(see Figures 1, 2

and3).

All of these events were sprayings on Colombian territory, at distances of between 2 and
nearly 4.5 kilometres of the two Salinas locations, and yet the witness claims that he saw

the planes and helicopters flying over the San Miguel river and over his community. The
falsehood is evident.

The distances of the actual spraying events, and wind trends in the relevant area 52 also

evidence the falsity of several of the witness’sclaim . sor instance, the witness alleges that
“[o]ne could s mell a bothersome, intense odor ”, and he implies that the river got

contaminated after the spraying, causing alleged bumps, skin itch, fever diarrhea, vomiting
and stomach ache. Furthermore, he states that “[f]ifteen days after the spraying, [he]
observed that the crops were turning yellow. Plantain, rice, yucca, and maize. Everything

was lost.”

Hewitt modeled these events under actual spraying conditions and estimateddownwind
deposition valuesof 0.01 g/ha, 0.099 g/ha, 0.106 g/ha, 0.167 g/ha, 0.11 g/ha and 0.015
53
g/ha, respectively. The level of concern for amphibians, the most sensitive animal species
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 54

51
EM, Vol. IV, Annex 91.
52 See CR, Vol. I, Chap. 2, sec. C, paras. 2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
53 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), p4,-Table of Model Resul, rows
69, 53, 51,44, 49and 68, respectively.
54 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 1-B, p. 330.

Appendix page 32This shows that no damage could have been caused in Ecuado Trh.is was further confirmed

with satellite imagery of the area at the time of the spraying described in the statement.
Indeed, very little change in vegetation condition occurred in the Salinas area and the
changes identifiedare attributed tonormal agricultural activities.55

Apart from the general testimony’s falsity, it is also important to note how the witness
follows the scrpit prepared for him in a clearly structured fashion:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “A week after the fumigations, we
broke out in a rash of bumps on our skin that caused a strong itch.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “My
children had fever, diarrhea, vomiting and stomach ache.”“My wife suffered
from headaches and dizziness.”

• Loss of crops, and plants turning yellow. “Fifteen days after the spraying , I
observed that the crops were turning yellow. Plantain, rice, yucca, and maize.

Everything was lost.”
• Effects on soiland subsequentloss of productivity , generallymeasured in quintals.
“The plants no longer produce like before and inside they a yrellow.”

• Alleged impacts on animals.“The animals were also affected. Three days after the
spraying, the chickens that were on the tree at nightfall were found dead, the

following day, on the ground. The cows that were pregnant had miscarriages. We
also saw a lot of dead fish in the river, during the time of the sprayings. We have
even noticed that in recent years there has been a decline in some species such as

the monkeys and guatuzas,a type of rodent, before there were many of them and
now there are hardly any.”

• He/she had never experienced anything similar before“ .Before, despite pests, the
land produced, and it produced a lot. After the spraying, everything was lost and the
land was left weakened.”“It was very strange that everyone in the community got

sick at the same time; this had never happened before.”
• Final dramatic statements. “My community lives in constant anguish. We do not

know when this nightmare will end. We are afraid that they wip llay again and we
will not be able to feed our children. We do not know how many yearsisitgoing to
take for the land to produce as it did before”.

55
See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report rarry M. Evans, Dec. 2011,
3.70- 3.77, pp. 64-73; “[I]t is my opinion that the changes identified in the Salinas study area were merely a
result of normal agricultural activities”, Ibi,dp.ara. 3.77, p. 73.

Appendix page 33Appendix page 34 Witness 4
(EM, Vol. , Annex192)

Appendix page 35 0°20'N 0°15'N

76°55'W 76°55'W

Scale: 1:100,000
theSrpivrathaewIniatknal boundary

Spray lineNote:er
COLOMBIA
0 1rojecti2n: UTM3zone 14; Datu5 kmGS-84

Salinas (2)

Salinas (1)

77°0'W 77°0'W

DisDisncanhctrioaudeerar(l)a4:2r750mbmank

l
eui
Mn
aS
íR

ECUADOR

SalSalnas)(-2l)o-csaetocEatciounadfEpcluyaaE:c5u0a0d0o0rT1o:5

DisDtintantctrioaudeerEa(u)a3:3r13n1mmank
PERU

77°5'W 77°5'W

COLOMBIA

ECUADOR

PACIFIC

0°20'N 0°15'N Figure 2. Salinas, Spray Lines in 2001 (Witnesses, 1-2-3-4-5)

Appendix page 36 Salinas, 2001 (witness 4)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2001 (Witnesses 1-2-3-6-7)
OBJECTIDLINE_ID TIME ALTITXUTDREACK MPHHEADINSGSPRAY_RATDEOPSV USEDDF STNID ASCIINAMELENGTH SWTHATHTYPEAIRCRAFTLOG SOURCETHMAC_CROP
13644 002771 07:36:22.30 1,200 502,57 2 165,12001,8090,601101 -1 a041j#ac 0 0101 50Coca T-65 a041j#ac 2001_sl_lines.shT-65_Coca

PARAMETERS 07:36 FEET MILES/HOUR 04 January 2001

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
365 295 70
Attribute Table 3

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2001 (Witnesses 1-2-3-6-7)
OBJECTIDLINE_ID TIME ALTITXRECK MPH HEADINSGSPRAY_RATEOPSVUSEDDFSTNID ASCIINAMELENGTH MOSNWTATHTYPEAIRCRAFTLOG SOURCETHMAC_CROP
14039 001711 12:18:52.05 1,200 215,84 1 156,0040 0,900111,170 -1 a051djdc 0,006 010C1oca 05-6 a051djdc 2001_sl_lines.shT-65_Coca

PARAMETERS 12:18 FEET MILES/HOUR 05 January 2001

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)

365 286 79
Attribute Table 4

SALINAS 1:

Distance to Salinas location: 4,481 metres, over fou ar-d-a-half kilometres.

Distance to the Ecuadorian bank on the border river: 3,131 metres, three kilometres

SALINAS 2:

Distance to Salinas location: 3,050 metres, over three kilometres

Distance to the Ecuadorian bank on the border river: 2,750 metres, nearly three kilometres.

Hewittmodeledtheseevents and estimateddeposition valuesof 0.106 g/ha and 0.167g/ha,
56
respectively. The level of concern for amphibians, the most sensitive animal species

according to Ecuador, is 1,368 g/ha; andbetween 36 and 1,958 g/ha for various crops. 57

This shows that no damage could have been caused in Ecuador.

56 CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 5-, Table of Model Results , rows

51 and44.
57 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131 -B, p. 330.

Appendix page 37Witness 4:

The witnessstates that she was raised in Salinas, province of Sucumbíos, Ecuador. Evn e
thoughshe still is vague with regard to the approximate date of the sprayings, this time at

least she refers to a particular year: in 2001, she remembers having seen two planes
followed by helicopters which passed by slowly, several times in the same day, above their

community, dropping something like a mistS .he was working the farm and shewould see
the planes crossing the San Miguel River and going from one side of the border to the
58
other.Then she describes the alleged effects.

The data shows that the closest spray line to the river bank on the Ecuadorian side of the
border in 2001 was sprayed at distances of between 2.7 and nearly 4.5 kilometres of the two

Salinas locations (see Figure 1). It is quite evident that Colombia did n ot sprayed over
Ecuadorian territory , nordirectly over the Witness and herchildren, as she claims.

Witness 4also claims alleged effects on crops and plants: “On my farm I had planted about

twelve hectares of pasture land, plantain, yucca, coffee, and cacao. The spraying
completely ruined all of it. A few days after the spraying, the plants started to turn yellow
59
and then they turned black and died.”However, generalwind trends in the area and the
actual spraying distancesfrom the border render driftabsolutely irrelevant, and therefore

none of the alleged effects could have produced.

Indeed,Hewittmodeledthese events and estimateddownwinddeposition valuesof 0.106
g/ha and 0.167g/ha, 60respectively. T he level of concern for amphibians, the most sensitive

animal species according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for
various crops. 61 This was also confirmed with satellite imagery which shows that very

little change in vegetation condition occurred in the Salinas area afterhte first sprayings,
and thatthe smallchange is mainly due to normal agricultural activities. 62

Though the statement’s falsity has been shown in its entirety, Colombia will show how the

witness follows the common structure prepared for all the witnesses.

58 EM, Vol. IV, Annex 192.
59 See CR, Vol. I, Chap. 2, Sec. C, paras. 2.221 -2.224; see also CR, Vol. II, Annex 19: IDEAM
Climate Characterization (2011).
60
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4-5, Table of Model Results,
61ws 51 and44.
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
62l. III, Annex 1-B, p. 330.
See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by rarry M. Evans, Dec. 2011, paras.
3.70- 3.77, pp. 64-73; “[I]t is my opinion that the changes identified in the Salinas sre merely a
result of normal agricultural activities”, Ibi,dp.ara. 3.77, p. 73.

Appendix page 38• Alleged impacts on human health:
− Serious skin irritation/itching and bumps. “ Two weeks after the first spraying,

my family and I got bumps all over the body, we had an itch that was
unbearable.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “My
children also suffered from fever and diarrhea, which started a month after the
spraying. The following year, they sprayed again and my children had diarrhea

all over again, a few weeks after the fumigations.”“Now, we are all sick, many
of us suffer from headaches and dizziness.”
• Loss of crops, and plants turning yellow.“On my farm I had planted about twelve

hectares of pasture land, plantain, yucca, coffee, and cacao. The spraying
completely ruined all of it. A few days after the spraying, the plants started to turn
yellow and then they turned black and died.”

• Effects on soil and subsequent loss of productivity , usually measured in quintals.
“Two years ago, we planted again, but the soil does not have the same strength as it
used to. The plants grew weakly and, when they were cut, inside they were black

and dry. Before the fumigations, a hectare of coffee would yield sixty quintals, and
a hectare of maize would yield forty quintals. Now, the coffee yields about five
quintals per hectare, and the maize about two quintals.”

• Alleged impacts on animals. “A few weeks after the spraying, the calves had a
white diarrhea and a few days later they died.” “When I woke up, I found several

dead chickens near the tree. The pigs lost their hair and stopped eating. They also
died.”
• He/she had never experienced anything similar beforeW . ith regard to the alleged

effects on plants: “I had never experienced anything like that.” Then she adds:
“Neverbefore, not even in the case of a drought or in the rainy season, had the land
yielded so little.”

• Final dramatic statements.I“f I had a place to go to, I would leave this community.
In fact, those who could have done it and that is why there are so many empty
houses. But this is my reality and I have no option but to continue fighting every

day against something that I did not choose. I cannot give up, I owe it to my
children”.

Appendix page 39Appendix page 40 Witness 5
(EM, Vol. , Annex 193)

Appendix page 41 0°20'N 0°15'N

76°55'W 76°55'W

Scale: 1:100,000
theSrpivrathaewIniatknal boundary

Spray lineNote:er

COLOMBIA Projection: UTM zone 18; Datum: WGS-84
0 1 2 3 4 5 km

Salinas (2)

Salinas (1)

77°0'W 77°0'W

DisDisncanhctrioaudeerar(l)a4:2r750mbmank

l
eu
iM
naS
íR

ECUADOR

SalSalnas)(-2l)o-csaetocEatciounadfEpcluyaaE:c5u0a0d0o0rT1o:5

DisDtintantctrioaudeerEa(u)a3:3r13n1mmank

PERU

77°5'W 77°5'W

COLOMBIA

ECUADOR
PACIFIC

Figure 2. Salinas, Spray Lines in 2001 (Witnesses, 1-2-3-4-5)
0°20'N 0°15'N

Appendix page 42 Salinas, 2001 (witness 5)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2001 (Witnesses 1-2-3-6-7)
OBJECTIDLINE_ID TIME ALTITXUTDREACK MPHHEADINSGSPRAY_RATDEOPSV USEDDFSTNID ASCIINAMELENGTH MSTHATHTYPEAIRCRAFTLOG SOURCETHMAC_CROP
13644 002771 07:36:22.30 1,200 502,57 2 165,1201,8009,610101 -1 a041j#ac 0 0101 50Coca T-65 a041j#ac 2001_sl_lines.shT-65_Coca

PARAMETERS 07:36 FEET MILES/HOUR 04 January 2001

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) GroundLevel (Metres)
365 295 70
Attribute Table 3

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2001 (Witnesses 1-2-3-6-7)
OBJECTIDLINE_ID TIME ALTITXRECK MPH HEADINSGSPRAY_RATEOPSVUSEDDFSTNID ASCIINAMELENGTH MOSNTATHTYPEAIRCRAFTLOG SOURCETHMAC_CROP
14039 001711 12:18:52.05 1,200 215,84 1 156,00400,900111,17900 0 a051djdc 0,006 010C1oca T5-605a051djdc 2001_sl_lines.shT-65_Coca

PARAMETERS 12:18 FEET MILES/HOUR 05 January 2001

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
365 286 79

Attribute Table 4

SALINAS 1:

Distance to Salinas location: 4,481 metres, over foa unr-d-a-half kilometres.

Distance to the Ecuadorian bank on the border river: 3,131 metres, three kilometres

SALINAS 2:

Distance to Salinas location: 3,050 metres, over three kilometres

Distance to the Ecuadorianabnk on the border river: 2,750 metres, nearly three kilometres.

Hewittmodeledtheseevents and estimateddeposition valuesof 0.106 g/ha and 0.167g/ha,
63
respectively. The level of concern for amphibians, the most sensitive animal species
64
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

63 CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 5-, Table of Model Results , rows

51 and44.
64 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131 -B, p. 330.

Appendix page 43Witness 5:

The witness states that he has lived in Salinas, province of Sucumbíos, for25 years.He

again at least refers to a particular year: “I rememberthat in 2001 I was working on my
farm, which is located near the San Miguel River, and I saw three white planes protected by
65
helicopters flying over Salina” s.Allegedly, theeffects started immediatle y.

The data shows that Colombian territory was sprayed in 2001 at distances of between 2.7

and nearly 4.5 kilometres of the two Salinas locations(see Figure2), and yet the witness
cynically claims that he saw the planes […] flying over Salinas… The planes did not

respect our airspace. They entered our territory as they were spraytio nturn around toward
Colombia. The planes made two or three passes…” The falsehood is evident.Colombia

did not spray over Ecuadorian territory as the witnessicm las.

67
But the distances involved and the general wind trend in the area also evidence the falsity
of other of the witness’sclaims , such as the allegedsour chemical-like odor that could be

felt both in the air and in the water , and the usual effects on crops and plants. Indeed,
Hewitt modeled these events and estimated deposition values of 0.106 g/ha and 0.167
68
g/ha, respectively. T he level of concern for amphibians, the most sensitive animal species
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 69

This was also confirmed with satellite analysis, which concluded tha vtery little change in
vegetation condition occurred in the Salinas area after the first sprayings, and that the small
70
change is mainly due to normal agricultural activities.

The witness’sparticularly dramatic statements amid such a false testimony are also
remarkable. He goes as far as to state that somc ehildren in the community fainted because

they had difficulties in breathingand were suffering from dizziness. Moreover, he claims
that the sprayings have caused psychological problems in his village, as well as fear,

concern, uncertainty and a lot of anxiety.

Anyway, the witness follows in most of the statement the usual script:

65
EM, Vol. IV, Annex 193.
66 Emphasis added.
67 See CR, Vol. I, Chap. 2, sec. C, paras. 22.224; see also CR, Vol. II, Annex 19: IDEAClimate
Characterization (2011).
68 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp.4,-Table of Model Resul, rows
51 and44
69
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
70l. III, Annex 13-B, p. 330.
See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by rarry M. Evans, Dec. 2011,
paras. 3.70- 3.77, pp. 64-73; “[I]t is my opinion that the changes identified in the Salinas study area were
merely a result of normal argicultural activities”, Ibid,.para. 3.77, p. 73.

Appendix page 44• Alleged impacts on human health:

− Serious skin irritation/itching and bumps.A“t that moment, […] my nose started
to itch.”“About four days after the fumigations, my body ached all over and my
skin itched. I had bumps on my skin that lasted for about a month and a half.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhe“aA . t that
moment, my eyes started to burn.” “The children had headaches and eye

irritation. My youngest daughter had vomiting and diarrhea”.
• Loss of crops, and plants turning yellow.“I had planted three hectares of coffee, one
of cocoa, and fifteen of pasture. A week after, the coffee began to lose its flowers,

the leaves started to turn yellow and then they turned black, drying up completely.
The cacao also turned yellow and, when it was cut, one could see inside that the
cacao seeds had rotted. The grass turned a yellowish color that began at the top and

moved down to the roots.”
• Effects on soil and subsequent loss of productivity measured in quintal“sA. fter the
fumigations, I replanted but production began to drop. Out of three hectares, I used

to gather sixty quintals of coffee. Now, with a bit of luck, I can barely get fifteen
quintals of coffee from the three hectares.” “Unfortunately, the land has remained
affected and has low productivity. The plants no longer produce as before.”

• Alleged impacts on animals. “The animals have also suffered. The chickens had
shock and died three or four days after the spraying. They went blind and later died.

Two cows gave birth ahead of time and their offspring were born deformed.” “It
also affected the production of the cows. Usually they had a calf every year, and
then after the spraying, they started having calves every three years. I could see a lot

of horses in Salinas tt had some type of rash and their skin was peeling. After the
spraying, small, dead fish could be seen on the riverbank.”
• He/she had never experienced anything similar beforW e.ith regard to the planes:“I

had never seen anything like it before.” With regard to the alleged health effects:
“We have never had an epidemic like the one caused by the spraying Wsith regard
to the alleged effecston animals: “This had never happened before.”

• Final dramatic statements“ .We live with fear and terror of being sprayed again. We
do not want to continue suffering and seeing how innocent children get sick after
the sprayings”.

Appendix page 45Appendix page 46 Witness 6

(EM,Vol. IV, Annex 194)

Appendix page 47 0°20'N 0°15'N

76°50'W 76°50'W

km
5

4

3

2 Scale: 1:100,000
theSrpivthaewIniatnal boundary

Spray lineote:er

COLOMBIA Projection: UTM zone 18; Datum: WGS-84
0

DisDisnantctrioaueerar(l)a:2r062mmank
76°55'W ue 76°55'W
ig
nM
Sa
í
R

Salinas (2) ECUADOR

Salinas (1)

77°0'W 77°0'W

PERU

COLOMBIA

DisDtina(ncetioaudeaEa(l)a:)389n0mmank

ECUADOR

SalSalnas)(-2l)o-csaeocatciounadEpcluyaE:c5u0a0d0pograhoimgapphic map PACIFIC

0°20'N 0°15'N Figure 1. Salinas, Spray Lines in 2000 (Witnesses 1-2-3-6-7)

Appendix page 48 Salinas, 2000(witness 6)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2000 (Witnesses 1-2-3-6-7)

OBJECTIDLINE_ID TIME ALTIUTDREACK MPH HEADINSG SPRAY_RATDEOPSV USEDDFSTNID ASCIINAME LENGTH MON STHATH MISSIAORCRAFAT_C_CROCPROP
3813 002721 12:59:06.39 1,100 -39,59 1194,2000 3,6010 8 8-1 0 l260kdac 152,977 0012 Coca 50T-65 T-65_CCooccaa

PARAMETERS 12:59 FEET MILES/HOUR 26 September 2000
ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
335 281 54

Attribute Table 1

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2000 (Witnesses 1-2-3-6-7)

OBJECTIDLINE_ID TIME ALTIUTDREACK MPH HEADINSG SPRAY_RATDEOPSV USEDDFSTNID ASCIINAME LENGTH MON STHATH MISSIAORCRAFAT_C_CROCPROP
5422 003293 13:44:19.25 1,200 37,88 1185,9812,02111,,720000 910 9 100 l310cfcc 201,637 00C1o2ca T5-065 T-65_CCooccaa

PARAMETERS 13:44 FEET MILES/HOUR 31 September 2000
ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
365 299 66

Attribute Table 2

SALINAS 1:

Distance to Salinas location: 4,490 metres, over four kilometres.

Distance tothe Ecuadorian bank on the border river: 3,890 metres, nearly four kilometres.

SALINAS 2:

Distance to Salinas location: 2,377 metres, over two kilometres

Distance to the Ecuadorian bank on the border river: 2,062 metres, over two kilometres

Hewittmodeledthese events and estimateddeposition valuesof 0.01 g/ha and 0.099g/ha,
71
respectively. The level of concern for amphibians, the most sensitive animal species

according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 72

This shows that no damage could have been caused in Ecuador.

71 CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 5-, Table of Model Results , rows

69 and53.
72 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see alsoCCM,

Vol. III, Annex 131 -B, p. 330.

Appendix page 49Witness 6:

The witnessstates that shehas lived in the Salinas Community, in Sucumbíos, Ecuador, for
thirty years. She claims that the first time that she saw the planes spraying by the river, the

planes came, flying over the trees. She and her family would watch them from the house
near the river.Allegedly, a few days later her family was sick. 73

As usual the witness does not refer to a particular date or even a specific year, but rather

alludes to unspecified events in terms such as “after the sprayings”, “[t]he first time I saw
the planes spraying”, and “[s]hortly after the sprayings”. This can be interpreted as intended

to refer to 2000, 2001 or 2002. The events shown above in Figure 1, were the first
sprayings in the area, in 2000, all of them carried on Colombian territory at distances of

between 2 and nearly 4.5 kilometres of the two Salinas locations, and yet the witness claims
that the spray crossed the river, getting closeto where they were.She also states that her

husband saw how “ a fine rain fall on the coffee leave”s.

At the distances involved,and with the wind blowing generally in the opposite direction, 74

none of thewitness’sclaims couldhave occurred, not eventhe alleged effects on plants and
crops. Hewitt modeled the closest sprayingevents and estimated downwind deposition
75
values of 0.01 g/ha and 0.099 g/ha, respectively , which would not be enough to harm
neitherthe most sensitive animal speciesnor plants and crops at all. This has also been

confirmed with satellite imagery of the area which clearly shows that very little change in
vegetation condition occurred in Salinas after the first sprayings, and that the small change
76
is mainly due to normal agricultural activities.

Still, there is one particularity which cannot go unmentioned. This time the witness dares to
imply that the sprayings caused her husband death: “[My husband] never got better; he

could not go back to work. He died on the 16 June 2002.” This is a particularly serious
accusationwhich will be found also in some witnesses’ statements belo aws a manifestation

of the desperate attempt to attain the Court’s attentio.nHowever, the impossibility for the
spray mix to cause human deaths has been acknowledged by Ecuador: “True, its effects on
77
people might not necessarily be fatal…”

73 EM, Vol. IV, Annex 194.
74 See CR, Vol. I, Chap. 2, sec. C, paras. 2.224; see also CR, Vol. II, Annex 19: IDEAM Climate

75aracterization (2011).
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp4.-5, Table of Model Re, rows
76 and53, respectively.
See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report byrarry M. Evans, Dec. 2011,
paras. 3.70- 3.77, pp. 64-73; “[I]t is my opinion that the changes identified in the Salinas study area were
merely a result of normal agricultural activities”, Ib,idp.ara. 3.77, p. 73.
77 ER, para. 2.4.

Appendix page 50Quite apart from the alleged death, the witness also innovates with regard to a human effect
that none of the other witnesses mention.A “few days later, the whole family was sick with

a flu that we had never had before.” However, this alleged effectis equally contradicted
with the scientific evidence mentioned above.

Anyway, the witness statement contain tse usual elements as follows:

• Alleged impacts on human health:
− Serious skin irritation/itching and bumps.M “y husband, my children and I had a

terrible itch. Each time we scratched, it would bleed.” “The bumps appeared
mostly on my husband’s back, his skin peeled, and he bled a lot.”
− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea.

• Loss of crops, and plants turning yellow. “The yucca hardened. The plant turned
yellow and it would fall to one side. The fruit was hard. It could not be eaten
because it would not getsoft even when cooked. We ate plantain, which was also

small and hard, but it could be cooked to be eaten. The rice became like straw.”
• Effects on soil and subsequent loss of productivity measured in quintals.“Before

the sprayings began on the border, a hectare would produce forty quintals of coffee.
With that small amount of coffee, it was enough for us to get by. But, after the
sprayings, the plants died or no longer produced even half of what they used to.”

• Alleged impacts on animals.“Shortly afterthe sprayings, our plants also began to
get sick. The coffee […] turned yellow and then it would not produce. We had to
cut down an entire hectare of dead coffee.” “With the cacao, the plant did not dry

up, but the fruit did and we could not get the seed out. Half of the cacao seeds
would come out completely dry and dead and the other half yellow.” “Also, the
cows were swollen with blisters on their skin.[…] When the swelling was cut, a

kind of pus came out, it looked like really bad milk.” “The pregnan otcs gave birth
and the calves were born healthy, but about eight days later they had white diarrhea,
and died. Several chickens died. The other chickens that survived would lay soft

eggs with no shell that were not even good enough to eat.” “Almost all of the chicks
born during that period died. The pigs had a terrible shaking. They laid there on the
ground, and they did not walk or eat.”T“he pigs got very thin and finalyied.”

• He/she had never experienced anything similar befor “A. few days later, thewhole
family was sick with a flu that we had never had beforeW .”ith regard to the alleged

effects on cows: “We had never seen this before, which is why we examined their
skin.”
• Final dramatic statements.“The diseases suffered by my family, the animals and

plants at home and at the homes of the rest of the community, always came back
every time we saw the planes spraying along the border. Every time that white
smoke came, we became depressed knowing the destruction that awaited us in a

short time, and what little we could do to prevent it”.

Appendix page 51Appendix page 52 Witness 7
(EM, Vol. , Annex 195)

Appendix page 53 0°20'N 0°15'N

76°50'W 76°50'W

km
5

4

3

2 Scale: 1:100,000
theSrpivthaewIniatnal boundary

Spray lineote:er

COLOMBIA Projection: UTM zone 18; Datum: WGS-84
0

DisDisnantctrioaueerar(l)a:2r062mmank
76°55'W ue 76°55'W
ig
nM
Sa
í
R

Salinas (2) ECUADOR

Salinas (1)

77°0'W 77°0'W

PERU

COLOMBIA

DisDtina(ncetioaudeaEa(l)a:)389n0mmank

ECUADOR

SalSalnas)(-2l)o-csaeocatciounadEpcluyaE:c5u0a0d0pograhoimgapphic map PACIFIC

0°20'N 0°15'N Figure 1. Salinas, Spray Lines in 2000 (Witnesses 1-2-3-6-7)

Appendix page 54 Salinas, 2000(witness 7)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (2) IN 2000 (Witnesses 1-2-3-6-7)
OBJECTIDLINE_ID TIME ALTITUDXETRACK MPH HEADINS SPRAY_RATDEOPSV USEDDF STNIDASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFAT_C_CROCPROP
3813 00272112:59:06.391,100 -39,59 194,203,600 1 0 1 8 8 0 -1 l260kdac 152,9770012 50 Coca T-65 T-65_CocCaoca

PARAMETERS 12:59 FEET MILES/HOUR 26 September 2000

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres)over MSL (Metres) Ground Level (Metres)
335 281 54

Attribute Table 1

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SALINAS (1) IN 2000 (Witnesses 1-2-3-6-7)
OBJECTIDLINE_ID TIME ALTITUDXETRACK MPH HEADINS SPRAY_RATDEOPSV USEDDF STNIDASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFAT_C_CROCPROP

5422 00329313:44:19.251,2037,88 185,820 11,7001 91,270 1,200109 9 100 l310cfcc 201,6370012 50 Coca T-65 T-65_CocCaoca
PARAMETERS 13:44 FEET MILES/HOUR 31 September 2000

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres)over MSL (Metres) Ground Level (Metres)
365 299 66

Attribute Table 2

SALINAS 1:

Distance to Salinas location: 4,490 metres, over four kilometres.

Distance to the Ecuadorian bank on the border river: 3,890 metres, nearly four kilometres.

SALINAS 2:

Distance to Salinas location: 2,377 metres, over two kilometres

Distance to the Ecuadorian bank on the border river: 2,062 metres, over two kilometres

Hewittmodeledthese events and estimateddeposition valuesof 0.01 g/ha and 0.099g/ha,

respectively. 78 The level of concern for amphibians, the most sensitive animal species

79
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

78 CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 5-, Table of Model Results , rows

69 and 53.
79
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131 -B, p. 330.

Appendix page 55Witness 7:

The witnessclaims that he lives in Salinas, in a farm on the banks of the San Miguel River,
from where he has allegedly experienced the sprayings. As for the date, there is no

information in the testimony. However, the witness refers to the alleged effects of “[t]he
first time that [he] experienced the fumigations”. 80

According to the spray data of the Department of State, the “first time” was in 20I0 n0t.hat

year, as shown in Figure 1, the spray events closest to Salinas 1 and Salinas 2 were at
distances of 4,490 metres and 2,377 metres, respectively. Measured from the Ecuadorian

bank on the border river the events were at 3,890 and 2,062 metres.

Giventhe great distance of the Colombian location where the sprayis ngtook place it is not
possible to even suggest that the alleged effectw s ere a result of drift. Even in disregard of
81
the general wind trend conditions in the relevant area, Hewitt confirmed this conclusion
aftermodelingthese events and estimatingdeposition valuesof 0.01 g/haand 0.099 g/ha,
82
respectively. The level of concern for amphibians, the most sensitive animal species
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 83

This shows that no damage could have been caused in Ecuador.

This is further evidenced with satellite imageryof the area which clearly shows that very
little change in vegetation condition occurred in Salinas after the first sprayings, and that
84
the small change is mainly due to normal agricultural activities. Yet the witness alleges
that the plants growing by the riverbank would get sick faster than the plants that were

farther in. They would turn yellow after a few days, the leaves would fall, until there was
nothing left, not even the twig.”

The falsehood is ale radyevident,but it does not end there. The statement follows the same

pattern, the usual pr- eprepared script of the other witnesse:s

• Alleged impacts on human health:

80 EM, Vol. IV, Annex 195.
81 See CR, Vol. I, Chap. 2, sec. C, para.s2.221-2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
82
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp.4,-Table of Model Resul, rows
83 and 53, respectively.
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
84l. III, Annex 13-B, p. 330.
See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by rarry M. Evans, Dec. 2011,
paras. 3.70- 3.77, pp. 64-73; “[I]t is my opinion that the changes identified in the Salinas study area were
merely a result of normal agricultural activities”, Ib,idp.ara. 3.77, p. 73.

Appendix page 56 − Serious skin irritation/itchingand bumps: This witness does not go as far as to
claimbleeding bumps as other witnesses do, but he does describe itching and a

hot feeling throughout his body . “I started having skin problems, I had itching
and felt hot throughout my whole body, as if it were some type of allergy.”
“Shortly after the sprayin,gthe itching started, especially in the children.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. The
witness does not dare to claim eye burning as others do, but following his script,
he says: “[t]he children also got diarrhea, stomachaches, vomiting and a lot of

fever.”
• Loss of crops, and plants turning yellow“ .The main effect after the spraying was a

reduction in the harvest. During that time, I had some pastures that appeared
scorched.” “[T]he plants have a lot of problems, because when the fruit is close to
ripening, it dries up. We had grape and zapote plants on the farm by the riverbank;

they were very big, and a week or two following the first spraying they died. One
could tell that the plants growing by the riverbank would get sick faster than the
plants that were farther in. They would turn yellow after a few days, the leaves

would fall, until there was nothing left, not even the twig.”
• Effects on soil and subsequent loss of productivity measured in quintals. “The
coffee […] no longer produced the same amounts that we knew it should have.

Right before the fumigations, a hectare would yield thirty quintals during harvest
time, every fifteen days; now, it yields about three or four quintals per hectare.
Today, ten quintals ae harvested per hectare; still, it is a very small harvest.”

• Alleged impacts on animals: “About a week after the spraying, one could see an
effect – mainly on the calves. Some cows that had been pregnant miscarried or
delivered stillborn calves ahead of time. Even though the offspring died, some of

the cows did survive. The youngest living calves also died.”
• He/she had never experienced anything similar before “:But after I saw that white

smoke, there was this burned appearance, which was very strange and we had never
seen it before.” “In the past, we did not have this [itching], it came only after they
began spraying.” “This had never happened before to us, the cows dying as they

did.”
• Final dramatic statements: “After the sprayings, some families had to baandon their
farms, and they still have not returned. Until not long ago, we had always worked

on our farms, making money from the land; but, after that smoke fell over us, we
have had to find work in anyway we could, because, in any case, we had to provide
for our families”.

Appendix page 57Appendix page 58 Witness 8
(EM, Vol. , Annex 196)

Appendix page 59 0°16'N 0°14'N

76°44'W 76°44'W

Puerto Escondido

Corazón Orense

DisDtinistanbttroetórtTare2n10d:dno40an1k0on

76°46'W 76°46'W

ECUADOR

COLOMBIA

76°48'W 76°48'W

DisDinistanbttrreutrtTaru2n1ed)dno10an2k5on

3m
DisDintitanActrroetrtTaruln9o):ado25an0k0on PERU

l
2 u
i
Mn
aS
oí COLOMBIA
R
Scale: 1:60,000
theSrpi1rthaewInatnal boundary

76°50'W Spray linete:ver 76°50'W

Projection: UTM zone 18; Datum: WGS-84

0 ECUADOR
PACIFIC

0°16'N 0°14'N Figure 5. Corazón Orense–Puerto Escondido, Spray Lines in 2002 (Witnesses 8
-9-20-21-22-23)

Appendix page 60 Corazón OrensP eu– erto Escondido, 2 (00 it2ness 8)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)
OBJECTISEG FILE_NAMEMISSIOSNIDELINESTART_TIME LATILUDEITUDAELTITUDDEOPFLT_TIME FLT_LENGTHSPEETEVOLUMAEREA LOG LENGTH MO SNTAHHIRCRAFT CAR_OCP_CROP
1084 399 J102Q7A0C-R19ig9ht150 17:48:43:50.26335588 106-716.78002,872,457 761,1 16,100 0 J102,Q970A0C 2322,,702100 C8o5caOV0_VC-o1c0a
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES

Spray Line Altitude Ground Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
323 280 43

Attribute Table 9

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)
OBJECTISEG FILE_NAMEMISSIOSNIDELINESTART_TIME LATILUDEITUDAELTITUDDEOPFLT_TIME FLT_LENGTHSPEETEVOLUMAEREA LOG LENGTH MO SNTAHHIRCRAFT CAR_OCP_CROP
1086 401 J102Q7A0C-R19ig9ht150 17:48:52:70.26343991 102-786.77200,890,678 211 10,200 0 J212040CQ87642,4,3900210 C8o5caOV0_VC-o1c0a

PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
313 265 48

Attribute Table 10

ATTRIBUTE TABLE OF THE THIRD CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)

OBJECTISEG FILE_NAMEMISSIOSNIDELINESTART_TIME LATILUDEITUDAELTITUDDEOPFLT_TIME FLT_LENGTHSPEETEVOLUMAEREA LOG LENGTH MO SNTAHHIRCRAFT CAR_OCP_CROP
1085 400 J102Q7A0C-R19ig9ht150 17:48:48:40.26340366 104-716.77509,822,292 726 1,5 0 J102237AC 2220,,640500210 C8o5caOV0_VC-o1c0a
PARAMETERS10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)

316 274 42
Attribute Table 11

CORAZÓN ORENSE AND PUERTO ESCONDIDO:

Distance of the three closest spray lines to CorazO ón rense location: 5,125 metres, over five

kilometres; 4,810 metres, nearly five kilometres; and 4,640 metres, over four and a half

kilometres.

Distance of the three closest spray lines to Puerto Escondido location: 3,300 metres, over

three kilometres; 2,925 metres and 2,710 metres, nearly three kilometres each.

Distance of the three closest spray lines to the Ecuadorian bank on the border river: 3,090

metres, over three kilometres; 2,720 metres, nearly three kilometres; and 2,515 metres, over

two and a halfkilometres.

Hewittmodeledtheseevents and estimateddeposition valuesof 1.2 g/ha, 1.1 g/ha and 0.11

g/ha,respectively. 85 This shows that no damage could have been caused in Ecuador.

85
CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 5-, Table of Model Results , rows

10,13 and50, respectively.

Appendix page 61 0°20'N 0°15'N

km
5

4

76°40'W 76°40'W

3

2
theSrpivthaewIniatknal boundary

Spray lineote:e1

Projection: UTM zone 18; Datum: WGS-84

0

DisDistancttrooutrióarbla1o30a:n10a830omn

Corazón Orense

76°45'W 76°45'W
le
ug
iM
na
So
íR

ECUADOR

COLOMBIA
PERU

DisDistanbctrdoutrióanrlad120)a:n12360omn

COLOMBIA

76°50'W 76°50'W

ECUADOR

PACIFIC

0°20'N 0°15'N Figure 6. Corazón Orense, Spray Lines in 2003 (Witness 8)

Appendix page 62 Corazón Orense, 2(0 w0itness 8)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO CORAZON ORENSE IN 2003 (Witness 8)

OBJECSTEDFILE_NAMISSIILEINSETART_TIME LON LAGTTULDIEUDFPELT_TIME FLT_LSPEEGTOHLUARETELOGLENGTHSW MAOAIRTRAFAT_C_CORPP
12273 694 2 E23ig6tD1C:B6935:47 0.301106822120 0-76.835445338 1316,9 11,700 166,6C0ocTa-65_o,c5a 3,023 E233ADAC 402,029

PARAMET2 ERSMay 2003 13:36 FEET MILES/HOUR
ADDED ATTRIBUTES
Spray Line AltitGround AltitudSpray Line Altitude over
over MSL (Metreover MSL (MetresGround Level (Metres)
328 288 40

Attribute Table 12

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO CORAZON ORENSE IN 2003(Witness 8)
OBJECTSIEDGFILEMIESSSDLEINSETART_TIME LATNTITALTEIDOEFLT_TIME FLT_LENSPEEDVOLTEAREEALOG LENGTH MSOANTRCRAFTA_CCRCROP
2993 286 G093ARBig3.B799 118:1:50 0.32928509 -76.73853915 1712000 00,,161350,23ABBC 1550,,3286 a75_Coca0 T-65

PARAMETE 09SJuly 2003 11:18 FEET MILES/HOUR
ADDED ATTRIBUTES
Spray Line AltitGround AltitudSpray Line Altitude over
over MSL (Metreover MSL (MetresGround Level (Metres)
322 276 46

Attribute Table 13

CORAZÓN ORENSE:

Distance of the two closest spray lines to Corazón Orense location: 12,360 metres, over

twelve kilometres, 10,830 metres, nearly eleven kilometres.

Distance to the Ecuadorian bank on the border river: 6,460 metres, over six kilometres; and

5,670 metres, over five and a half kilometres.

Hewitt modeledthese eventsand estimateddeposition valuesof 0.0395 g/ha and 0.0599
86
g/ha,respectively. The level of concern for amphibians, the most sensitive animal species
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 87

This shows that no damage could have been caused in Ecuador.

86
CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 5-, Table of Model Result, rows
64 and 60.
87
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; seealso CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 63 Witness 8:

The witness states that she has lived in Corazón Orense, province of Sucumbíos, Ecuador,

for twenty years. She claims that it was about six or seven years ago when she first s taw
planesspraying over her communit;yafter a week, allegedly the first effects appeared. 88As

the statement was rendered on 16 January 2009, Colombia infers that she must have been
referring to 2002 or 2003. Therefore, both years were analysed.

According to the Spray Data from the Department of State, in those years, the spray events

closest to Corazón Orense were at 5,125 metres, 4,810 metres, and 4,640 metres. From the
Ecuadorian bank on the border river the same events were at 3,090 metres, 2,720 m etres,

and 2,515 metres. All of these events were sprayings on Colombian territory, at distances of
between5.5 and 6.5 kilometres from the Ecuadorian bank on the border river, or between

nearly 11 and over 12 kilometres from the Corazon Orense locatio(n see Figures5 and 6).
Therefore, the witness could not have seen “the planesspraying over [her] community”, as
she claims. The falsehood is evident.

Moreover, at the actual spraying distances, any of the alleged effects could not have

possibly occurred, not even for plants and crops. Hewitt’s modeling of these events resulted
in estimated downwinddeposition values of1.2 g/ha, 1.1 g/ha, 0.11 g/ha,0.0395 g/ha and
89
0.0599 g/ha, respectively. Even if downwind means towards Ecuador, which i s not
usually the case, all these values areway below the level of concern even for the most
91
sensitive species and no damage could have been caused in Ecuad iar territory.

For further evidence, Dr Evans extensively analysed satellite imagery of the Puerto
Mestanza location, which is north of Corazón Orense and adjacent to the border river.

According to his expert opinion,“while changing levels of vegetation may be observed in
the Republic of Colombia in 2002-2003 in the immediate area of – and in the weeks
immediately following– the September and October 2002 PECIG spraying operations,

there are no similar vegetative changes reflected on the Ecuadorian side of the river in the
area of the Mestanza farm.”

But then, again, the witness follows the same structure prepared for all the witnesseH s.er

script is thefollowing:

88
89 EM, Vol. IV, Annex 96.
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011),4,-Table of Model Resul, rows
90, 13, 50,64 and 60.
See CR, Vol. I, Chap. 2, sec. C, paras2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
91 The level of concern for amphibians, the most sensitive animal species according to Ecuador, is
1,368 g/ha; and between 36 and 1,958 g/ha for various cro.ps

Appendix page 64• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “A week after the spraying, my
children and I got bumps that were like blisters and itched a lot. My children
also got bumps on their feet that itched a lot and their skin bled”.

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea.“The
children were also stricken with a strong diarrhea and they suffered from

vomiting.” “I had a headache, burning eyes and a stomach ache. I still feel
burning in my eyes.”
• Loss of crops, and plants turning yellow“.On our farm, we had planted maize, rice,

plantain and cacao. After the spraying, everything was damaged. The crops turned
yellow and dried up. About two weeks after the spraying, the plants started to
wither, it was a slow process that ended with the crops drying up completely.”

• Effects on soil and loss of productivity measured in quintals. “The soil has been
made sterile. Before, I used to produce fifty quintals of maize per hectare and now I
only produce eight per hectare.”

• Alleged impacts on animal.s“One or two days after the sprayings, we saw dead fish
in the river, shads and catfish. The pigs were thin and the hogs died. The chickens,

of the one hundred that I had, only five were left. neand two-year old calves also
died.”
• He/she had never expereinced anything similar before“ .[B]efore the sprayings [the

children] did not have those bumps.” “Never before in our community have all the
children been sick at the same time, with the same symptoms.”
• Final dramatic statements. “Now, the young people have to go to town to work

because farming no longer produces.”

Appendix page 65Appendix page 66 Witness 9
(EM, Vol. , Annex 197)

Appendix page 67 0°15'N

km
5

4

76°40'W 76°40'W
3

2
theSrpivthaewIatknal boundary

Spray lineote:1r
Projection: UTM zone 18; Datum: WGS-84

0

DisDistancttroutarTearla83)0a:n6085kmon

ECUADOR

Corazón Orense

76°45'W 76°45'W

COLOMBIA

PERU

e
i
M
a
S
oR

COLOMBIA

ECUADOR
DisDtitanbctrooutriEarlad7)0ma:n20n0kon
PACIFIC

76°50'W 0°15'N 76°50'Wure 4. Corazón Orense, Spray Lines in 2001 (Witness 9)

Appendix page 68 Corazón Orense, 200(1 witness 9)

Metadataof the closest spray lines

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO CORAZON ORENSE IN 2001 (Witness 9)

OBJECTIDLINE_IDTIME ALTIXTTURDAECK MPH HEADINSGSPRAY_RAEPSVUSEDDFSTNIDASCIINAMLEENGTH MO SWTAHHYPEAIRCRAFLOG SOURCETHM AC_CROP
18412 002552 09:39:31.82 1,100 -7,491 75,117340,20002,1162000 100 a181cfac 0,001 Coca01T0-1655a0181cfac2001_sl_lines.sh T-65_Coca

PARAMETERS 09:39 FEET MILES/HOUR 18 January 2001

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) GroundLevel (Metres)
335 273 62

Attribute Table 7

ATTRIBUTE TABLE OFTHE SECOND CLOSEST SPRAY LINE TO CORAZON ORENSE 2001 (Witness9)

OBJECTIDLINE_ID TIME ALTITTRDAECK MPH HEADINSGSPRAY_RADTEPSVUSEDDFSTNID ASCIINAMELENGTH MOSN WTHTTYPEAIRCRAFTLOG SOURCETHM AC_CROP
18508 002647 12:00:17.27 1,100 -785,721 811,7800,0980 1,10039,510109a181cfbc 0,004 Co101T-65 50 a181cfbc 2001_sl_lines.shT-65_Coca
PARAMETERS 12:00 FEET MILES/HOUR 18 January 2001

ADDED ATTRIBUTES

Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
335 272 63

Attribute Table 8

CORAZÓN ORENSE:

Distance of the two closest spray lines to Corazón Orense location: 6,200 metres and 6,085

metres, both over six kilometres.

Distance to the Ecuadorian bank on the border river of both spray lines: 1,850 metres,

nearly two kilometres; and 1,130 metres, above one kilometre.

Hewitt modeledthese eventsand estimateddeposition valuesof 0.01 g/ha and 0.2 g/ha,
92
respectively. The level of concern for amphibians, the most sensitive animal species

according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 93

This shows that no damage could have been caused in Ecuador.

92
CR, Vol.II, Annex 2: HewittSpray Events Modeling (2011), pp. 45-, Table of Model Results , rows
70 and41.
93
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131 -B, p. 330.

Appendix page 69 0°16'N 0°14'N

76°44'W 76°44'W

Puerto Escondido

Corazón Orense

DisDtinistanbttroetórtTare2n10d:dno40an1k0on

76°46'W 76°46'W

ECUADOR

COLOMBIA

76°48'W 76°48'W

DisDinistanbttrreutrtTaru2n1ed)dno10an2k5on

3m
DisDintitanActrroetrtTaruln9o):ado25an0k0on PERU

l
2 u
i
Mn
aS
oí COLOMBIA
R
Scale: 1:60,000
theSrpi1rthaewInatnal boundary

76°50'W Spray linete:ver 76°50'W

Projection: UTM zone 18; Datum: WGS-84

0 ECUADOR
PACIFIC

0°16'N 0°14'N Figure 5. Corazón Orense–Puerto Escondido, Spray Lines in 2002 (Witnesses 8
-9-20-21-22-23)

Appendix page 70 Corazón OrenseP– uerto Escondido, 20(0 w2itness 9)

Metadata of the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)
OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIME LATITUDE GITUDELTITUDDEOPFLT_TIME FLT_LENGTH SPOETEED VOLUMAEREA LOG LENGTH MOSNW THATHAIRCRAFT CRAO_PC_CROP
1084 399 J102Q7AC3.0B29-R91ight150 17:48:430.26335588 -17066.17802703,2,470 761,1 16,100 0219J,190020Q7AC 22,630210761 85CocaOV10-1_0Coca

PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
323 280 43

Attribute Table 9

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)

OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIME LATITUDE GITUDELTITUDDEOPFLT_TIME FLT_LENGTH SPOETEED VOLUMAEREA LOG LENGTH MOSNW THATHAIRCRAFT CRAO_PC_CROP
1086 401 J102Q7AC3.0B29-R91ight150 17:48:520.26343991 -17062.87720905,0,680 211 10,200 0224J,180020Q7AC 2,360021093 85CocaOVO-V10-1_0Coca
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
313 265 48

Attribute Table 10

ATTRIBUTE TABLE OF THE THIRD CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)
OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIME LATITUDE GITUDELTITUDDEOPFLT_TIME FLT_LENGTH SPOETEED VOLUMAEREA LOG LENGTH MOSNW THATHAIRCRAFT CRAO_PC_CROP

1085 400 J102Q7AC3.0B29-R91ight150 17:48:480.26340366 -17064.17759204,2,220 726 1,5 0 22J3102Q7AC2,262000,0210 85CocaOV10-1_0Coca
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
316 274 42

Attribute Table 11

CORAZÓN ORENSE AND PUERTO ESCONDIDO:

Distance of the three closest spray lines to Corazón Orense location: 5,125 metres, over five

kilometres; 4,810 metres, nearly five kilometres; and 4,640 metres, over four and a half

kilometres.

Distance of the three closest spray lines to Puer ot Escondido location: 3,300 metres, over

three kilometres; 2,925 metres and 2,710 metres, nearly three kilometres each.

Distance of the three closest spray lines to the Ecuadorian bank on the border river: 3,090

metres, over three kilometres; 2,720 metres, nearly three kilometres; and 2,515 metres, over

two and a half kilometres.

Hewittmodeledtheseevents and estimateddeposition valuesof 1.2 g/ha, 1.1 g/ha and 0.11

94
g/ha,respectively. The level of concern for amphibians, the most sensitive animal species

according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 95

This shows that no damage could have been caused in Ecuador.

94 CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), pp.5 4,-Table of Model Results , rows

10,13 and50.
95
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131 -B, p. 330.

Appendix page 71 Witness 9:

The witnessstates that she has “livedin Corazon Orense for more than 22 years.”“[T]he
first spraying that [she]remember[s] occurred about 7 or 8 years ago. The planes came

escorted by helicopters and, when [she] saw them, they seemed to be flying by the edge of
the river, releasing a white smoke that had a strong chemical smell.” 96 The witness does

not even mention an exact date for this alleged first spraying, but rather alludes to 7 or 8
years ago. As she rendered her testimony on 16 January 2009, Colombia concludes that

shemust have beenreferring to 2001or 2002.

The events shown in Figure 4, from 2001, were the closest sprayie ngesntsto the witness’s
location. All of these events were carried out on Colombian territory, at distances of

between 1.1 and nearly 1.8 kilometres from the Ecuadorian bank on the border river, and at
distances of over 6 kilometres from Corazón Orense . In 2002, as shown in Figure 6, the

closest sprayingswere carried out on Colombian territory, at distances of between 2.5 and 3
kilometres from the Ecuadorian bank on the border river, and of between 4.5 and over 5

kilometres from the Corazón Orense location.

Clearly, it is not true that the planes were “flying by the edge of the river” and “spraying
again near the community” as the witness states. His claims with regard to the alleged

effects on crops –“loss of [his] entire harvest”– are also contradicted by the actual wind
conditions in the area; 97 and even ignoring these general wind trends, Hewitt modeled the

closest spray events and estimated downwinddeposition valuesof 0.01 g/ha, 0.2 g/ha, 1.2
g/ha, 1.1 g/ha and 0.11g/ha, respectively. 98 The level of concern for amphibians, the most

sensitive animal species according to Ecuador, is 1,368 g/ha; and between 36 and 1,958
g/ha for various crops. 99

This has been further confirmed by Dr Evans, who analysed satellite imagery of Puerto

Mestanza, located north from Corazón Orense and adjacent to the border river . He
concludedthat while there is a clear evidence ofvegetationchange in the areas sprayedin

Colombia in 2002-2003, there is not a correspondingvegetative change reflected on the
Ecuadorian side of the rive ,rnot even in a much lesser scale. 100

96 EM, Vol. IV, Annex 197 [Emphasis adde].
97 See CR, Vol. I, Chap. 2, sec. C, paras. 2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
98 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp4,-Table of Model Resul, rows

99,41, 10, 13 and 50.
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
100. III, Annex 1-B, p. 330.
See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report byrarry M. Evans, Dec. 2011,
paras. 3.13- 3.38, pp. 14-38; “[M]y expert opinion is that while changing levels of vegetation may be
observed in the Republic of Colombia in 202-003 in the immediate area of– and in the weeks immediately
following– the September and October 2002 PECIG spraying operations, there are no similar changes in

Appendix page 72She then follows the usual script:

• Alleged impacts on human health:

− Serious skin irritation/itchingand bumps. “Five or six days after the spraying,
my children and I got rashes on our arms and legs and then on the rest of our
bodies. The rash caused intense itching.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “My
children, who were playing outside when the planes came, suffered from

burning in their eyes on the day of the spraying.” “I had a strong headache and
dizziness. The children also suffered from vomiting and diarrhea, which lasted
for two weeks.”

• Loss of crops, and plants turning yellow. “Approximate ly 15 days after the
sprayings, the crops started to turn yellow.” “I lost my entire harvest.” “[t]he soil is
damaged and it no longer produces as before the sprayings”.

• Effects on soil and loss of productivity measured in quintals. This time, the witness
does not mention quintals, as usual, but he says that “[u]nfortunately, the plants did

not grow like before. The land remained affected.”
• Alleged impacts on animals.“The animals also became sick: I had forty chicks and
nearly all of them died. The dogs got thin and many pigs lost their hair. The cows

that were about to give birth miscarried.”
• He/she had never experienced anything similar before. “I lost my entire harvest.

Nothing like this has ever happened before.”
• Final dramatic statements.“All of this that we have had to endure has been very
hard on us. We have sacrificed ourselves for many years working this land.

Unfortunately, I do not have any choice but to stay here with my family. No one
wants to buy my land because the soil is damaged and it no l onger produces as
before the sprayings”.

vegetation reflected on the Ecuadorian side of threiver in the area of the”.Ibid., para. 3.38, p.
36.

Appendix page 73Appendix page 74 Witness 10
(EM, Vol. , Annex 198)

Appendix page 75Appendix page 76 0°20'N 0°15'N

km

5

4
76°40'W 76°40'W

3

2
Scale: 1:100,000
theSrpivrthaewInatknal boundary

1
Spray lineote:er

Projection: UTM zone 18; Datum: WGS-84
0

76°45'W 76°45'W

Puerto Mestanza

e ECUADOR
g
i
n
a
o
íR

COLOMBIA

PERU

76°50'W 76°50'W

COLOMBIA

ECUADOR

PACIFIC

0°20'N 0°15'N Figure 24. Puerto Mestanza, Spray Lines in 2004 (Witness 10)

Appendix page 77 0°20'N 0°15'N

76°40'W 76°40'W

Scale: 1:100,000
theSrpivrthaewInatknal boundary

Spray lineote:er

Projection: UTM zone 18; Datum: WGS-84
0 1 2 3 4 5 km

76°45'W 76°45'W

Puerto Mestanza

e ECUADOR
u
M
n
aS
í
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COLOMBIA

PERU

76°50'W 76°50'W

DisDistancttroeutrtTarblst329ia: b7a7n9on

COLOMBIA

ECUADOR

PACIFIC
Figure 25. Puerto Mestanza, Spray Lines in 2005 (Witness 10)
0°20'N 0°15'N

Appendix page 78 Puerto Mestanza, 2005 (Witness 10)

Metadata of the closest spray lines

METADATO LINEA DE ASPERSION MAS CERCANA PUERTO MESTANZA 2005 (Witness 10)
OBJECTISEG FILE_NAMEMISSIOSNIDELINESTART_TIME LTNDGEITUADLEDEOPFLT_TIME FLT_LENGTHSPEOETDEVOAERLENGTH MOSNWTHTHIRCRAFATC_CROP

3295 1238 J135VMAC.BR9i9ght22 380:34-31:14:02.028998635 -73225880,890 1,2 109,7 0,800 204,500 6,300 0,568 109,577 0510 85 OV-10
PARAMETERS13 OCTOBER 2005 08:43 METRES MILES/HOUR

ADDED ATTRIBUTES
Ground Altitude Spray Line Altitude over
overMSL(Metres) Ground Level (Metres)
276 46
Attribute Table 32

PUERTO MESTANZA, 2005:

Distance of the closest spray line to the location of Puerto Mestanza: 2,779 metres, nearly

three kilometres.

Distance to the Ecuadorianbank of the border river: 2,539 metres, over two and a half

kilometres.

101
Hewitt modeledthis event and estimated deposition valueof 0.36 g/ha. The level of

concernfor amphibians, the most sensitive animal species according to Ecuador, is 1,368
102
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage

could have been caused in Ecuador.

101 CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 45-, Table of Model Results , row

33.
102 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131 -B, p. 330.

Appendix page 79Witness 10:

The witnessstates that he has lived in Puerto Mestanza for the past ten years. With regard
to dates, the witness claims that he clearly remembers “a spraying approximately four years
103
agothat extremely affected the cattle”. Four years prior to the witness’tsestimony would
have been 2004 or 2005.

According to the Spray Data from the Department of State, there were no spray eventis n

the relevant area during 2004 (see Figure24). For 2005, the eventshown in Figure 25was a
sprayingon Colombian territory, which was the closest spray line to the location of Puerto

Mestanzaat a distance of 2,779 metres,i.e., nearly three kilometres, and at 2,539 metres
from the Ecuadorian bank of the border riv,eir.e., over 2.5 kilometre.s

Yet the witness makes the following preposterous allegations: “Shortly after the planes

came, the cattle died. I have several neighbours whose cows were pregnant and had
miscarriages. This had never happened before. They ate the affected pasture and drank the

water contaminated with the chemicals that the planes dropped. All the rice, maize,
malangaand also the cacao were ruined. Even the pastures dried up to a yellow color.”

Such effects on cattle do not occur even under direct overspray, and those, as well as the
alleged effects on vegetation, could not have occurred under the general wind trends and at
104
the distances involved.

Hewitt confirmed this conclusion after modeling these events and estimating a downwind
deposition valueof 0.36 g/ha. 105The level of concern for amphibians, the most sensitive

animal species according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for
various crops. 106 And this was further evidenced by Evans’ analysis of satellite imagery,

which allowed him to conclude thatw “hile changing levels of vegetation may be observed
in the Republic of Colombia in 2002-2003 in the immediate area of –and in the weeks

immediately following – the September and October 2002 PECIG spraying operations, there
are no similar vegetative changes reflected on the Ecuadorian side of the river in the area of
107
the Mestanza farm”.

103 EM, Vol. IV, Annex 98.
104 See CR, Vol. I, Chap. 2, sec. C, paras. 2.224; see also CR, Vol. II, Annex 19: IDEAM Climate

105racterization (2011).
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 45-, Table of Model R, rows
106
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 1-B, p. 330.
107 CR, Vol. II, Annex 6: DrB.M. Evans, Ph.D.,Expert Report by DrBarry M. Evans, Dec. 2011, para.
3.38, pp. 38.

Appendix page 80The falsehood is evident but, again, it does not end there. Even though this timheet itness
does not describe any alleged impacts on human health, hd eoesfollow the usual structure

with regard to the other elemen:ts

• Loss of crops, and plants turning yellow “.All the rice, maize, malanga, and also the

cacao were ruined. Even the pastures dried up to a yellow color.”
• Effects on soil and loss of productivity measured in quintals. “Here, in Ecuador,
after the sprayings, the soil has lost its strength. Now, the soil has to be fertilized a

lot. After the first fumigations, the effects on the soil were very strong, stronger than
other times when the crops also died. After that first time, nothing could be planted
in the soil. The other times when there were fumigations, it was possible to rep nlta

the plants after they died, but it was very hard to make them grow and produce.”
• Alleged impacts on animals.“Shortly after the planes came, the cattle died. I have

several neighbors whose cows were pregnant and had miscarriages.” “They ate the
affected pasture and drank the water contaminated with the chemicals that the
planes dropped.” “I went to the river to fish the day after the sprayings and I saw

dead catfish,bocachicoand black pacu in the streams that run from the San Miguel
River.” “A while ago, one could throw a net and catch fish. I would leave the
fishing lines and return the following day; then, one fished a lot. After the

sprayings, fishing has been tough and sometimes I spend half a day or a whole day
just to catch one fish.”
• He/she had never experienced anything similar before “.The fish looked inflated on

the water. I had never seen this before the sprayings.” “I have several neighbors
whose cows were pregnant and had miscarriages. This had never happened before.”
• Final dramatic statements. “A campesino is a campesino for life, there is no other

life for me but to hope they do not spray again”.

Appendix page 81Appendix page 82 Witness 11

(EM, Vol. , Annex 199)

Appendix page 83 0°15'N

km
5

76°50'W 76°50'W
4

3

2
Scale: 1:100,000
theSrpivthaewInatknal boundary

Spray lineote:er

DisDtisaencetdoerteracrlid070)aI:8a80kmon Projection: UTM zone 18; Datum: WGS-84
0
l
u
i
n
S
í
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ECUADOR

76°55'W 76°55'W

San Francisco II

COLOMBIA

PERU

COLOMBIA
DisDtisaencetdoerteTearli516oiIaI8a60kmon

77°0'W 77°0'W
ECUADOR
PACIFIC

0°15'N Figure 8. San Francisco II, Spray Lines in 2001 (Witness 11)

Appendix page 84 SanFranciscoII, 2001 (Witness 11)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SAN FRANCISCO II IN 2001 (Witness 11)

FID LINE_ID TIME ALTITUDXETRACK MPHHEADINSGSPRAY_RADTEPSVUSEDDFSTNID ASCIINAMELENGTHONTSHWATHTYPEAIRCRAFTLOG SOURCETHMAC_CROP
8959 00352173:24:17.418,000 -9186,270 1,8001 10,660 1,10088 0 -1 a271kbac 0,001 0101 50 Coca T-65 a271kba2c001_sl_lineTs-.6s5h_Coca
PARAMETERS 13:24 FEET MILES/HOUR 27 January 2001

ADDED ATTRIBUTES
Spray Line AltitudGround Altitude overSpray Line Altitude over
over MSL (Metres) MSL (Metres) Ground Level (Metres)
304 274 30

Attribute Table 16

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO SAN FRANCISCO II IN 2001 (Witness 11)
FID LINE_ID TIME ALTITUDXETRACK MPHHEADINSGSPRAY_RADTEPSVUSEDDFSTNID ASCIINAMELENGTHONTSHWATHTYPEAIRCRAFTLOG SOURCETHMAC_CROP

8254 00197192:52:41.210,200 137,11 163,280 1,70,000 1,70010 10 0 -1 a241jddc 0,002 010150 Coca T-65 a241jdd2c001_sl_lineTs-.6s5h_Coca
PARAMETERS 12:52 FEET MILES/HOUR 24 January 2001

ADDED ATTRIBUTES
Spray Line AltitudGround Altitude overSpray Line Altitude over
over MSL (Metres) MSL (Metres) Ground Level (Metres)
365 287 78

Attribute Table 17

SAN FRANCISCO II:

Distance of the two closest spray lines to San Francisco II location: 3860 metres and 4880

metres.

Distance to the Ecuadorian bank on the border river: 955 metres, and 1500 metres.

Hewittmodeledthese events and estimateddeposition valuesof 0.033 g/haand 0.1 g/ha,
108
respectively. The level of concern for amphibians, the most sensitive animal species

according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 109

This shows that no damage could have been caused in Ecuador.

108 CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 5-, Table of Model Results , rows

67 and 52.
109
See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131 -B, p. 330.

Appendix page 85 0°15'N

km
5
76°50'W 76°50'W

4

3

2
Scale: 1:100,000
theSrpivthaewIniatnal boundary

Spray lineote:er

Projection: UTM zone 18; Datum: WGS-84
0
DisDtisaenctrdoerteracrlid010)aI:6a55kmon
g
M
n
S
í
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COLOMBIA

76°55'W 76°55'W

San Francisco II

ECUADOR

PERU

COLOMBIA

DisDistancttroerteirarc4i200)aI:n615kmon

77°0'W 77°0'W
ECUADOR
OCEAN
PACIFIC
Figure 10. San Francisco II, Spray Lines in 2003 (Witnesses 11-17)
0°15'N

Appendix page 86 San Francisco II, 2003 (Witness 11)

Metadata of the closest spray line

ATTRIBUTE TABLE OF THE CLOSESTSPRAY LINE TO SAN FRANCISCO II IN 2003(Witness 11)
OBJECTISDEGFILE_NAMEISSIOSNIDELINESTART_TIMELALTOITNEUADLETIDEOPFLT_TIME FLT_LENGTHSPEEODEOLUM AEREA LOG LENGTH MSOWNTATAHIRCRAFT CRCO_PCROP

2701 730 G103JJDCR.Big9h9t3332891-41:04:0.29445543 -76.90890373 1173 0,770 0,1 26,1 33 178,300 CocaT-_Coca0,060 G103JJDC 7,959 0307
PARAMETER1S0 July 2003 14:04 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
356 293 63
Attribute Table
20

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO SAN FRANCISCO II IN 2003(Witness 11)

OBJECTISEG FILE_NAMEISSIOSNIDELINESTART_TIMELALIUGDIETUADLETDEOPFLT_TIME FLT_LENGTHSPEEODTEVOLUAEREA LOG LENGTH MO SNTAHHIRCRAFT CARC_PCROP
1412 291 G143CJAC.RBi9g9ht3-10:02:15:300.29426431 -76.89484179 1135 0,770 6,1 1504,2 27,500 168,100 Coc2a,T5-0605_Co3c,a453 G143CJAC 4580307 50
PARAMETER1S4 July 2003 10:02 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
345 296 49

Attribute Table 21

SAN FRANCISCO II:

Distance of the two closest spray lines to San Francisco II location: 7,615 metres and 7,655

metres.

Distance to the Ecuadorian bank on the border river: 4,910 metres and 5,100 metres.

Hewitt modeledthese eventsand estimated deposition valuesof 0.076 g/ha and 0.0645

g/ha, respectively. 110 The level of concern for amphibians, the most sensitive animal

species according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various

111
crops. This shows that no damage could have been caused in Ecuador.

110
CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 5-, Table of Model Results , rows

56 and59.
111 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131 -B, p. 330.

Appendix page 87Witness 11:

The witnessstates that she has lived in San Francisco II all her life. Shc elaims that at the

beginning of the year 2001, she remembers that some planes came by spraying, and that she
was working on a farm near the San Miguel River. Two years later, she claims to have
experienced another period of spraying. 112

According to the Spray Data from the Department of State, in 2001 (Figure8) the closest

spray lines to San Francisco II were conducted on Colom bian territory at distances of
between nearly 1 kilometre and 1.5 kilometres from the Ecuadorian bank on the border

river; yet the witness claims that “the planes came by spraying” and “[t]he planes were
above [her]” andthe“liquid” fell on her bab,ywho“stopped drinking [her] breast milk and
died on twenty -five September, two thousand and one.T ”he falsehood is evident.

The events of 2003(Figure10), “two years later”,were sprayings on Colombian territory at

distances of over 7.5 kilometres from the San Francisco II location, and of around 5
kilometres from the Ecuadorian bank on the border river. Yet,the witnessgoes as far as

claiming that her secondinfant daughter alsodied as a result of that spraying : “Two years
later, during a period of spraying, my two -month-old daughter died.” “[S]he died on ten
September, two thousand and three.”

The sole accusation of two babies dying as a consequence of the spraying is absolutely

outrageous. However,its falsity is evident not only from the fact that the sprayings were
carried out too far from the witness’slocation. Asstated above, the Ecuadorian Reply also
acknowledgedthe scientific conclusion on the impossibility of lethal effects of the mixt:ure
113
“True, its effects on people might not necessayrib le fatal…”

Anyway, this particularly serious falsity in which the witness incurs, acknowledged by
Ecuador,not only shouldbe more thanenough to discreditthe whole statement.It is also

telling on how far Ecuadorcan go in its desperateattempt to unfoundedly demonstrate a
link between the sprayings and some alleged effec,tsand therefore the general scepticism
with which the Court should proceed with regard to all of what the witnesse allege.

As shown, in both years the spray events were oot far to cause any of thesupposedeffects.
114
Evenignoringthe general wind trendsin the area, Hewitt confirmed this conclusion by
estimating deposition values of0.033 g/ha, 0.1 g/ha, 0.076 g/ha and 0.0645 g/ha for the

112 EM, Vol. IV, Annex 99.
113 ER, para. 2.4.
114 See CR, Vol. I, Chap. 2, sec. C, paras1.224; see also CR, Vol. II, Annex 19: IDClimate
Characterization (2011).

Appendix page 88 115
closest spray events in both years. The level of concern for amphibians, the most
sensitive animal species according to Ecuador, is 1,368 g/ha; and between 36 and 1,958
g/ha for various crops. This shows that no damage could have been caused in Ecuador.

Nevertheless, in the interest of completeness, Colombia will show how the witness again

follows the same structure as the rest of the witnesses, confirming that it ispart of a pre-
prepared script:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps.“The rest of us in the family had a
rash. They were little bubbles that would burst.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “But
after the sprayings, [my baby] became sick with the same thing that my other

daughter had, […] vomiting, diarrhea and fever.”
• Loss of crops, and plants turning yellow. “Also, shortly after the smoke of the

planes visited us for the first time, and every time after that, all the plants dried up.
We had planted maize, rice, cocoa, and plantain on our farm.”

• Effects on soil and loss of productivity measured in quintals. “ The plants are
growing but not very well. The yucca still has problems; it comes out of the skin

rotted with black spots.”
• He/she had never experienced anything similar before. “She was born fat and pretty,

and before the sprayings she never had any problems.”
• Final dramatic statements. “Some Kichwa families have abandoned their homes for

fear of problems from the sprayings. I, too, thought of leaving the border but I
stayed because my whole family is here”.

115 CR, Vol.II, Annex 2: Hewitt Spray Events Modeling (2011), p5-, Table of Model Res, rows
67,52, 56and59.
116 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol.III, Annex 13-B, p. 330.

Appendix page 89Appendix page 90 Witness 12
(EM, Vol. IV, Annex 200)

Appendix page 91 0°15'N

km
5

76°50'W 76°50'W
4

3

2 Scale: 1:100,000
theSrpivthaewInatnal boundary

Spray lineote:er

Projection: UTM zone 18; Datum: WGS-84
0

u
i
M
a
í DisDintitanbstanrirevetsabd7I39es34en1k2onnd 13: 2547
R

ECUADOR

76°55'W 76°55'W

La Cóndor
San Francisco II

COLOMBIA

PERU

COLOMBIA

DisDtinintanietntFiritoiur:lII44nsb0ananon13: 2467 m

77°0'W 77°0'W
ECUADOR

PACIFIC
Figure 9. San Francisco II and La Cóndor, Spray Lines in 2002 (Witnesses 12-13-17)
0°15'N

Appendix page 92 San Francisco II and LaCondor, 2002 (Witness12)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SAN FRANCISCO II IN 2002(Witnesses 12-13)
OBJECTISDEG FILE_NAMEMISSIOSNIDELINESTART_TIME LATLITOUNDGEAELTITUDEOPFLT_TIME FLT_LENGTHSPEEODTEOLUM AEREALOG LENGTH MSOW NTATAHIRCRAFT CRCO_PCROP
15724 528 I222A#3D0-B1i9g9ht168 10:59:30:800.25294071 1068-76.9103,83940732 0,1 20 109,900 I022123A6#,6,077 0209 Co5c0aT-65T-c6a5

PARAMETER2S2 September 2002 10:59 FEET MILES/HOUR
ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over

over MSL (Metres) over MSL (Metres) Ground Level (Metres)
324 279 45
Attribute Table 18

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO SAN FRANCISCO II IN 2002(Witnesses 12-13)
OBJECTISDEG FILE_NAMEMISSIOSNIDELINESTART_TIME LATLITOUNDGEAELTITUDEOPFLT_TIME FLT_LENGTHSPEEODTEOLUM AEREALOG LENGTH MSOW NTATAHIRCRAFT CRCO_PCROP

15758 562 I222A#3D0-B1i9g9ht174 11:05:10:200.25123216 1062-76.9008,70790108 0,1 21 00,100 I022124A3#,6,399 0209 Co5c0aT-65T-c6a5
PARAMETER2S2 September 2002 11:05 FEET MILES/HOUR
ADDED ATTRIBUTES

Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
322 279 43
Attribute Table 19

SAN FRANCISCO II AND LA CÓNDOR:

Distance of the two closest spray lines to San Francisco II location: 3,050 metres and 3,134

metres, over three kilometres.

Distance of the two closest spray lines to La Cóndor location: 4,944 metres and 4,935

metres, nearly five kilometres.

Distance to the Ecuadorian bank on the border river: 467 metres and 547 metres.

Distance of the two closest spray lines to witnesses 12 and 13 locations: 2,467 metres and

2,547 metres, nearly two and a half kilometres.

Hewitt modeled these events and estimated deposition values of 0.75 g/ha and 0.41 g/ha,

117
respectively. The level of concern for amphibians, the most sensitive animal species
118
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

117
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
16 and 30.
118
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 93Witness 12:

The witness states that she has “lived in SanFrancisco 2, province of Sucumbíos, about two
kilometers from the border, for thirty years.” “I have five children and I work as a farmer

on my thirty-five hectare farm. In the year two thousand and two, I was working on the

farm and I saw planes in the air, accompanied by one helicopter. One could clearly see that
they were releasing a white smoke similar to the rain that fell on me.” The effects allegedly
119
started immediately.

According to the Spray Data from the Department of State and as shown in Figure 9, in
2002 the tw o closest spray lines to San Francisco II were at a distance of nearly 2.5

kilometres from the witness’s reported location (lived... about two kilometres from the
border”). Yet, the witness claims that she “ could clearly see that they were releasing a

white smoke similar to the rain that fell on me .” “It had a very strong odor; and

immediately my eyes started watering and I remember they burned a lot. I was never able
to recover my sight.” 120The falsehood is evident.

But she also states that around 2004 “they sprayed again, although a little farther away.” To

be sure, it would have been more than “a little farther away”, since the spray event closest
to San Francisco II in 2004 was at 11.8 kilometres.

Even ignoring the general wind trends in the area , 121 there could have been only minimal

deposition resulting from these events at the distances involved , and drift could not have

resulted in any of the damages complained of by Ecuador , not even for plants and crops .
Hewitt confirmed this conclusion after modeling the closest spray events in 2002 and
122
estimating deposition values of 0.75 g/ha and 0.41 g/ha. The level of concern for
amphibians, the most sensitive animal species according to Ecuador, is 1,368 g/ha; and
123
between 36 and 1,958 g/ha for various crops.

This was further evidenced by Evans, who conducted an analysis to identify and quantify
vegetation changes that occurred within the area from September 12 to October 14, 2002,

using satellite images. He concluded that no significant change in vegetatio n condition is

119
120 EM, Vol. IV, Annex 200 [Emphasis added].
Ibid. [Emphasis added].
121 See CR, Vol. I, Chap. 2, sec. C, paras. 2.221 -2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
122 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
16 and 30.
123 See CR, Vol. II, Annex 1: Hewitt Report –Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 94evident during the time period discussed as would be expected if the spraying had caused
124
the types of damages alleged by the witness.

Yet, as the previous witness –who claimed that two of her da ughters died after the
spraying– Witness 12 also claims that “at least four babies in [her] community died during

that period. They did not even last a week after the sprayings. They died within days of
each other.” Besides the fact that the scientific evidence contradicts the alleg ations as to

human deaths, and that Ecuador has acknowledged so, Witnesses 11’s and 12’s last names
show that they are sisters. However , Witness 12 just mentions the alleged death of four
babies, without specifying that two of them were in fact her nieces. This detail also shows

the falsity and pre-prepared nature of all the statements.

Finally, the same repetitive patternis found in this statement:

• Alleged impacts on human health:
− Serious skin irritation/itching and bumps. “Also, a few days after the

fumigations, I felt uneasy and then I started itching a few days later, which
disappeared a few weeks later.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea.
“[I]mmediately my eyes started watering and I remember they burned a lot. I

was never able to recover my sight. To this day, my eyes burn a lot and they are
watery.” “I got dizzy and then I vomited. My children suffered from headache,
diarrhea and vomiting that lasted several weeks. I, too, suffered from headaches

then and even now, there are days that I still get them.”
• Loss of crops, and plants turning yellow. “After the sprayings, the crops dried up.

The plants started turning yellow and then black, until all was lost.” “The plants had
been affected and we had to stop preparing remedies because t hey caused us more

harm than good.”
• Effects on soil and loss of productivity measured in quintals. “Now, we have

harvested again but the land is not as fertile as before. Before, we would get around
sixty quintals of maize per hectare on my farm. Now, we only harvest ten or fifteen

quintals.”
• Alleged impacts on animals. “The animals were also affected due to the sprayings.
After each spraying, the chickens and pigs died. We had to bury them, because we

were told that it was not good to eat them. I also saw a lot of dead fish in the days
after the sprayings.”

124 See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report bBarry M. Evans, Dec. 2011,
3.52- 3.69, pp. 14 -38; “ [I]t is technically impossible to attrieffects alleged by the Ecuadorian
witnesses to the spraying in Colombian territory, and the results corroborate my opinion to the effect that the
few changes observed on the images in theSan Francisco study area were much more likely a result of typical
cultivation practices.” Ibid., para. 3.69, p. 64.

Appendix page 95• He/she had never experienced anything similar before.“We had never experienced

such a severe damage on our land.” “[N]othing similar had ever happened to us
before.”
• Final dramatic statements. “The plants had been affected and we had to stop

preparing remedies because they caused us more harm than good. Now, we have to
take our children to a health centre”.

Appendix page 96 Witness 13

(EM, Vol. IV, Annex 201)

Appendix page 97 0°15'N

76°50'W 76°50'W

theSrpivthaewInatnal boundary

Spray lineote:er

Projection: UTM zone 18; Datum: WGS-84
0 1 2 3 4 5 km
e
g
M
a
S
í DisDintitanbstanrirevetsabd7I39es34en1k2onnd 13: 2547
R

ECUADOR

76°55'W 76°55'W

La Cóndor

San Francisco II

COLOMBIA

PERU

COLOMBIA

DisDtinintanietntFiritoiur:lII44nsb0ananon13: 2467 m

77°0'W 77°0'W
ECUADOR
PACIFIC

0°15'N Figure 9. San Francisco II and La Cóndor, Spray Lines in 2002 (Witnesses 12-13-17)

Appendix page 98 San Francisco II and LaCondor, 2002 (Witness13)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SAN FRANCISCO II IN 2002(Witnesses 12-13)

OBJECTISDEG FILE_NAMEMISSIOSNIDELINESTART_TIME LATLITOUNDGEAELTITDEOPFLT_TIME FLT_LENGTHSPEEODTVEOLUMAEREALOG LENGTH MSOW NTATAHIRCRAFT C_RCO_PCROP
15724 528 I222A#3D0-Bht168 10:59:30:80 0.25294071 1068-76.0,83940732 0,1 20 109,900 I022123A6#,1C0C0 6,070209 Co5c0aT-65_CoTc-6a5

PARAMETER2S2 September 2002 10:59 FEET MILES/HOUR
ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
324 279 45
Attribute Table 18

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO SAN FRANCISCO II IN 2002(Witnesses 12-13)

OBJECTISDEG FILE_NAMEMISSIOSNIDELINESTART_TIME LATLITOUNDGEAELTITDEOPFLT_TIME FLT_LENGTHSPEEODTVEOLUMAEREALOG LENGTH MSOW NTATAHIRCRAFT C_RCO_PCROP
15758 562 I222A#3D0-Bht174 11:05:10:20 0.25123216 1062-76.0,70790108 0,1 21 00,100 I022124A3#,3C0C0 6,390209 Co5c0aT-65_CoTc-6a5
PARAMETER2S2 September 2002 11:05 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
322 279 43
Attribute Table 19

SAN FRANCISCO II AND LA CÓNDOR:

Distance of the two closest spray lines to San Francisco II location: 3,050 metres and 3,134

metres, over three kilometres.

Distance of the two closest spray lines to La Cóndor location: 4,944 metres and 4,935

metres, nearly five kilometres.

Distance to the Ecuadorian bank on the border river: 467 metres and 547 metres.

Distance of the two closest spray lines to witnesses 12 and 13 locations: 2,467 metres and

2,547 metres, nearly two and a half kilometres.

Hewitt modeled these events and estimated deposition values of 0.75 g/ha and 0.41 g/ha,

respectively. 125 The level of concern for amphibians, the most sensitive animal species

126
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

This shows that no damage could have been caused in Ecuador.

125
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
16 and 30.
126
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 99Witness 13:

The witness states that “[ f]or the past twenty -three years, [she] ha[s] been living in La

Cóndor, San Francisco II, Sucumbíos”, and that her “fifty -two hectare farm is located two
or three kilometers from the border with Colombia.” She claims that in the year 2002, two

or three planes protected by helicopters sprayed over her community. Allegedly, two weeks
later the effects started to appear. 127

According to the Spray Data from the Department of State, in 2002 (Figure 9) the closest
events were sprayings on Colombian territory, at a distance of 2.5 kilometres from the

witness’s reported location (“[m]y... farm is located two or three kilometers from the
border”, therefore 2 km was taken as the figure). Yet, the witness claims that “two or three

planes protected by helicopters sprayed over [his] community.” The falsehood is evident.

These distances also render impossible the alleged oily water that the witness de scribes.

Indeed, she states that “[d]uring the spraying period, [ she] noticed that the water was oily,
but [her family] still used it because [they] had no choice. It was as if the water had been

mixed with oil.” In addition, drift could not have resulted in any of the damages
complained of by the witness, not even in plants and crops and even ignoring general wind
128
trends in the area . Hewitt’s modeling of these events resulted in estimated deposition
values of 0.75 g/ha and 0.41 g/ha, 129 insignificant even for the most sensitive species. 130

This was further evidenced by Evans, who conducted an analysis to identify and quantify
vegetation changes that occurred within the area from September 12 to October 14, 2002,

using satellite images. He concluded that no significant change in vegetation condition is
evident during the time period dis cussed as would be expected if the spraying had caused
131
the types of damages alleged by the witness.

The statement’s falsehood has been shown. But the witness still follows the same structure

from the other witness statements.

127
EM, Vol. IV, Annex 201.
128 See CR, Vol. I, Chap. 2, sec. C, paras. 2.221 -2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
129 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows

130and 30.
The level of concern for amphibians, the most sensitive animal species according to Ecuador, is
13168 g/ha; and between 36 and 1,958 g/ha for various crops.
See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by Dr Barry M. Evans, Dec. 2011,
3.52- 3.69, pp. 14- 38; “[I]t is technically impossible to attribute the effects alleged by the Ecuadorian
witnesses to the spraying in Colombian territory, and the results corroborate my opinion to the effect that the
few changes observed on the images in the San Francisco study area were much more likely a result of typical
cultivation practices.” Ibid., para. 3.69, p. 64.

Appendix page 100 • Alleged impacts on human health:
− Serious skin irritation/itching and bumps. “One morning, I went to check the
farm wearing sandals and short pants, and the liquid sprayed on the grass

brushed against my legs. A few days later, I had a rash all over my body. To this
day, I am not cured. The itching is exasperating and I hurt even more on account

of the itching. I remember my daughter crying out of desperation because she
had bathed in the water from the streams, which had been sprayed with the
fumigation liquid. To this day, she has bumps on her skin and they will not heal

either.”
− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “The

young children were affected more than the adults by the sprayings. Many
children had to miss school for several days since they w ere sick with vomiting,
diarrhea and a headache. It is unfortunate that so many children died in San

Francisco II during this time.”
• Loss of crops, and plants turning yellow. “I had planted around ten hectares of

maize, rice, coffee, plantain, and yucca. A pproximately two weeks after the
spraying, I went to the farm and I saw that the field was dry and yellow. Little by
little the plants turned yellow.”

• Effects on soil and loss of productivity measured in quintals. “Some months later, I
planted again, but the land is no longer good. The land has been left barren.” “The

land that we have no longer produces”.
• Alleged impacts on animals. “On the farm, my family and I raised chickens, horses,
cows, and dogs. The animals began to die”. “The two- month-old calves started

losing their hair, they had nothing left but skin, and they died. Many cows
miscarried or their offspring were born with malformations. Several chickens were

found dead, the following morning, under the tree where they had slept. The dogs
that we u sed for hunting suffered from a dry cough, difficulty in breathing, and
died.”

• He/she had never experienced anything similar before. “This was the first time that
this had happened to me; the whole harvest was ruined.” “I never had any problems

with the animals on the farm”.
• Final dramatic statements. “Before the sprayings, we lived happily. Now, we have
nothing. […] If I had a chance I would leave this community, but I have nowhere to

go nor is anyone interested in buying my farm and lands, which are damaged”.

This witness also seems to imply an additional alleged effect: that the mixture moves along
the food chain and, for that reason, “[the dead animals] had to be buried”. However , this is

also contradicted by the scientific evidence. Indeed, CICAD I states that glyphosate has a

Appendix page 101short-lasting biological activity on soils and water; it is not biomagnified, does not move
132
along the food chain, nor does it seep from ground soil through to subterranean waters.

132
See above para. 13.

Appendix page 102 Witness 14

(EM, Vol. IV, Annex 202)

Appendix page 103 0°15'N

km
5

76°50'W 76°50'W
4

3

2 Scale: 1:100,000
theSrpivthaewInatknal boundary

Spray lineote:er

Projection: UTM zone 18; Datum: WGS-84
0

e
i
M
na
o
R

COLOMBIA

ECUADOR

76°55'W San Francisco II 76°55'W
DisDisnintancttroerreTaaslid650iI573m50kmon

San Francisco I

PERU

COLOMBIA

77°0'W 77°0'W
ECUADOR
DisDinistanbsei(eFrterutiwsen7iI14b810k8on7 m
PACIFIC
Figure 7. San Francisco I–II, Spray Lines in 2000 (Witnesses 14-18-19)
0°15'N

Appendix page 104 San Francisco– I II, 2000(witness 14)

Metadata of the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SAN FRANCISCO I Y II IN 2000 (Witnesses 14-18-19)

OBJECTILDINE_IDTIME ALTITUXDTERACKMPH HEADIN SGSPRAY_RADTOEPSVUSEDFSTNID ASCIINAMELENGTM HONTSHWATMHISSIOAIRCRAAF_TC_CRCORPOP
3813 00272112:59:06.3,9100 -39,59 194,200 3,6001 0 1 8 8 0 -1 l260kdac 152,9770012 50 Coca T-65 T-65_CoCcoaca

PARAMETERS 12:59 FEET MILES/HOUR 26 September 2000
ADDED ATTRIBUTES
Spray Line AltitudGround AltitudeSpray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
335 281 54
Attribute Table 14

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO SAN FRANCISCO I Y II IN 2000(Witnesses 14-18-19)

OBJECTIDLINE_ID TIME ALTITUDXETRACK MPH HEADINS SPRAY_RATDEOPSV USEDDF STNIDASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFAT_C_CROCPROP
3360 00274812:58:57.001,100 -81,45 177,3,560 1 0 0,90012 9 12 100 l260cfac 1491,8770012 50 Coca T-65 T-65_CocCaoca
PARAMETERS 12:58 FEET MILES/HOUR 26 September 2000

ADDED ATTRIBUTES
Spray Line AltitudGround AltitudeSpray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
335 282 53

Attribute Table 15

SAN FRANCISCO I AND SAN FRANCISCO II:

Distance of the two closest spray lines to San Francisco I location: 7,110 metres and 7,250

metres, over seven kilometres.

Distance of the two closest spray lines to San Francisco II location: 7,010 metres and 7,350

metres, over seven kilometres.

Distance of the closest spray line to witnesses 14 and 18 location: 3,817 metres and 2,817

metres, respectively.

Distance of the two lines to the Ecuadorian bank on the border river: 1,817 metres, nearly

two kilometres, and 1,960 metres, nearly two kilometres.

133
Hewitt modeled these events and estimated a deposition value of 0.01 g/ha each. The

level of concern for amphibians, the most sensitive animal species according to Ecuador, is
134
1,368 g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no

damage could have been caused in Ecuador.

133
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , rows
69 and 71.
134
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 105Witness 14:

The witness states that “from [his] house, the San Miguel River is less than two kilometres ,

which as [sic] measured by a topographic team when [he] bought [his] land.” He claims
that he has “worked as a farmer in the San Francisco II Community, province of

Sucumbíos, Ecuador, for the past twenty -eight years.” He says that “[o]ver the years, [he]
ha[s] observed planes spraying in this area several times. The first time the planes came

from Colombia, [he] saw them fly over the San Miguel River.” Shortly after that, the

effects started appearing. The witness also alleges that with the following spraying cycles,
his family got sick again. 135

Since the testimony is so vague as to dates of the alleged first spraying, there is no

alternative but to infer that the witness must be alluding to the earliest possible year, i.e.,
2000. The events shown above in Figure 7, were sprayings on Colombian territory, at the

following distances: Over 7 km from the San Francisco II location; almost 4 kilometres

from the witness’s reported location (“[f]rom my house, the San Miguel River is less than
two kilometres”); and nearly 2 kilometres from the river bank of the Ecuadorian side of the

border. Yet the witness claims that he “saw them fly over the San Miguel River. The planes
came and went several times.”

Dr Hewitt modeled these events and estimated a deposition value of 0.0 1 g/ha each. 136 In

the circumstances, there was no signif icant deposition of spray mixture in Ecuadorian
137 138
territory as a result of drift , even with disregard of the general wind trends in the area,
and could not have resulted in none of the alleged effects claimed by the witness , including

plants and crops. The statement is evidently false.

This was further evidenced by Dr Evans, who conducted an analysis to identify and
quantify vegetation changes that occurred within the area from September 12 to October

14, 2002, using satellite images. He concluded that no significant change in vegetation

condition is evident during the time period discussed as would be expected if the spraying
had caused the types of damages alleged by the witness. 139

135 EM, Vol. IV, Annex 202.
136 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows

137and 71.
The level of concern for amphibians, the most sensitive animal species according to Ecuador, is
13868 g/ha; and between 36 and 1,958 g/ha for various crops.
See CR, Vol. I, Chap. 2, sec. C, paras. 2.221 -2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
139 See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by Dr Barry M. Evans, Dec. 2011,
paras. 3.52- 3.69, pp. 14-38; “[I]t is technically impossible to attribute the effects alleged by the Ecuadorian
witnesses to the spraying in Colombian territory, and the results corroborate my opinion to the effect that t he

Appendix page 106The witness also goes as far as to claim that “[his] son who was born on t hirty July of the
year two thousand and one only lived forty -five days before dying. He was born thin and

weak; shortly after birth, he got a strong fever. Several babies in our community died that
year following the sprayings.” The falsity of this outrageous accusation is evident not only
from the fact that the sprayings were carried out too far from the witness’s location, but

also because it is scientifically impossible for the mixture to cause lethal effects, as was
also acknowledged by Ecuador : “True, its effects on people might not necessarily be
140
fatal…”

Although the falsity has been proven, it is important to show how the witness follows the
script prepared for him:

• Alleged impacts on human health:
− Serious skin irritation/itching and bumps. “Shortl y after that, bumps starting

[sic] appearing on my skin and they itched. At that time, I had three children,
who also got sick with bumps on their skin a week after the sprayings. At that

time, my wife was pregnant. Bumps appeared on her and she felt a general
discomfort of her body.” “The bumps that appeared on my other children

eventually disappeared.”
− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “[My
son] was born thin and weak; shortly after birth, he got a strong fever.” “One

could see that a lot of children in the community were sick with diarrhea and
vomiting after the sprayings.”

• Loss of crops, and plants turning yellow. “At the same time of our illnesses, the
plantain bunches became black and stopped producing fruit. I saw that the same

thing was happening on the farms of my other neighbors -- all the plants were dying
[…]”. “The rice and maize were the most affected. Coffee could not produce
either.” “The few plants that grew again died after the new sprayings.”

• This time the witness does not claim effects soil and subsequent loss of
productivity.

• Alleged impacts on animals. “Also, my dogs lost their hair.”
• He/she had never experienced anything similar before. “It was not normal at all for

this to happen and it was very tra umatic for everyone.” “It was incredible, never
before had we seen all the plants die at the same time.”

• Final dramatic statements. “With the following spraying cycles, my family got sick
again, and every time we had this horrible fear that we were going t o lose another

few changes observed on the images in theSan Francisco study area were much more likely a result of typical
cultivation practices.” Ibid., para. 3.69, p. 64.
140 ER, para. 2.4.

Appendix page 107child.” “We have been able to harvest some crops and we are trying to escape the
poverty, which has resulted from this repeated loss.”

Appendix page 108 Witness 17

(EM, Vol. IV, Annex 203)

Appendix page 109 0°15'N

km
5

76°50'W 76°50'W
4

3

2 Scale: 1:100,000
theSrpivthaewInatnal boundary

Spray lineote:er

Projection: UTM zone 18; Datum: WGS-84
0

u
i
M
a
í DisDintitanbstanrirevetsabd7I39es34en1k2onnd 13: 2547
R

ECUADOR

76°55'W 76°55'W

La Cóndor
San Francisco II

COLOMBIA

PERU

COLOMBIA

DisDtinintanietntFiritoiur:lII44nsb0ananon13: 2467 m

77°0'W 77°0'W
ECUADOR

PACIFIC
Figure 9. San Francisco II and La Cóndor, Spray Lines in 2002 (Witnesses 12-13-17)
0°15'N

Appendix page 110 San Francisco II and LaCondor, 2002 (Witness17)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SAN FRANCISCO II IN 2002(Witnesses 12-13)

OBJECTISDEG FILE_NAMEMISSIOSNIDELINESTART_TIMLEATITUDELONGITAELTITDEOPFLT_TFLET_LENGTTE SPEED VOLUM AEREALOG LENGTMHONTSHWATAHIRCRACFRP_C_CROP
15724 528 I222A#DC.B99301R -1ight168 10:59:30:800.25276.913341703628 0,890 0,120 19,900136,100 0 0 I222A#C6C,077 0209 50 T-65 CocaT-65_Coca
PARAMETER2S2 September 2002 10:59 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
324 279 45
Attribute Table 18

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO SAN FRANCISCO II IN 2002(Witnesses 12-13)

OBJECTISDEG FILE_NAMEMISSIOSNIDELINESTART_TIMLEATITUDELONGITAELTITDEOPFLT_TFLET_LENGTTE SPEED VOLUM AEREALOG LENGTMHONTSHWATAHIRCRACFRP_C_CROP
15758 562 I222A#DC.B99301R -1ight174 11:05:10:200.25176.908091100682 0,770 0,121 0,100 143,300 0 0 I222A#C6C,399 0209 50 T-65 CocaT-65_Coca
PARAMETER2S2 September 2002 11:05 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
322 279 43
Attribute Table 19

SAN FRANCISCO II AND LA CÓNDOR:

Distance of the two closest spray lines to San Francisco II location: 3,050 metres and 3,134

metres, over three kilometres.

Distance of the two closest spray lines to La Cóndor location: 4,944 metres and 4,935

metres, nearly five kilometres.

Distance to the Ecuadorian bank on the border river: 467 metres and 547 metres.

Distance of the two closest spray lines to witnesses 12 and 13 locations: 2,467 metres and

2,547 metres, nearly two and a half kilometres.

Hewitt modeled these events and estimated deposition values of 0.75 g/ha and 0.41 g/ha,
141
respectively. The level of concern for amphibians, the most sensitive animal species

according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 142

This shows that no damage could have been caused in Ecuador.

141
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results, rows

142and 30.
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 111 0°15'N

km
5

76°50'W 76°50'W
4

3

2 Scale: 1:100,000
theSrpivthaewIniatnal boundary

Spray lineote:er

Projection: UTM zone 18; Datum: WGS-84
0
DisDtisaenctrdoerteracrlid010)aI:6a55kmon
u
i
n
S
í
R

COLOMBIA

76°55'W 76°55'W

San Francisco II

ECUADOR

PERU

COLOMBIA

DisDistancttroerteirarc4i200)aI:n615kmon

77°0'W 77°0'W
ECUADOR

PACIFIC

0°15'N Figure 10. San Francisco II, Spray Lines in 2003 (Witnesses 11-17)

Appendix page 112 San Francisco II, 2003 (Witness 17)

Metadata of the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SAN FRANCISCO II IN 2003 (Witness 11)
OBJECTISEG FILE_NAMMEISSIOSNIDELINESTARTLAETITUDLEONGITDLETITUDDEOPFLT_TIMFELT_LENGTOHSPEED VOLUMAEREA LOG LENGTMHONTSHWATA HIRCRACFRTOPA_C_CROP

2701 730G103JJDC.B29899-1Right33314:04:35:08.0294455-4736.908903713173 0,26,10,33 178,300 2,5 0,060G103JJD7C,959 0307 50 T-65 CocaT-65_Coca
PARAMETER1 S0 July 2003 14:04 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
356 293 63
Attribute Table0

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO SAN FRANCISCO II IN 2003(Witness 11)

OBJECTIDSEG FILE_NAE ISSISIDELINESTART_TLAETITUDLEONGITAELTITUDDEOPFLT_TIMFELT_LENGTOHSPEED VOLUMAEREA LOG LENGTMH ONTSHWATAIRCRACFTOPA_C_CROP
1412 291G143CJAC.B29899-1Right385 10:02:15:03.0294264-3716.8948417191351504,2 27,500 168,100 2,5003,453G143CJA4C58,5990307 T-65 CocaT-65_Coca

PARAMETER1 S4 July 2003 10:02 FEET MILES/HOUR
ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)

345 296 49
Attribute Table 21

SAN FRANCISCO II:

Distance of the two closest spray lines to San Francisco II location: 7,615 metres and 7,655

metres.

Distance to the Ecuadorian bank on the border river: 4,910 metres and 5,100 metres.

Hewitt modeled these events and estimated deposition values of 0.076 g/ha and 0.0645
143
g/ha, respectively. The level of concern for amphibians, the most sensitive animal

species according to Ecuador, is 1,368 g/ha; an d between 36 and 1,958 g/ha for various
144
crops. This shows that no damage could have been caused in Ecuador.

143
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Res ults, rows
56 and 59.
144
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 113Witness 17:

The witness states that she lives in “La Carchi, province of Sucumbíos, a few kilometers

from the border.” She claims that “about six or seven years ago, [she] was on [her] farm
when [she] saw two planes accompanied by helicopters fly over [her] community.” The

planes crossed over the river and passed over Ecuadorian territory, and then returned to

Colombia. On their way, they dropped a whitish liquid.” She then describes the alleged
effects.145

Although neither in the M emorial nor in the Reply Ecuador locates the community La
146
Carchi, it does indicate that this community corresponds to San Francisco II. However,
since the testimony is so vague as to dates of the alleged first spraying, there is no

alternative but to infer that six or seven years ago would mean 2002 or 2003, in light of the
date of the affidavit (16 January 2009). The two years are analysed separately.

For 2002, the event shown in Figure 9 was a spraying on Colombian territory, at a distance
of over 2.5 kilometres from the witness’s reported location (“... a few kilometres from the

border”, therefore 2 km was taken as the figure) . For 2003, the event shown at Figure 10
was also a spraying on Colombian territory, at a distance of 7 kilometres from the witness’s

location. Yet, the witness claims that “t he planes crossed over the river and passed over
Ecuadorian territory, and then returned to Colombia.” The falsehood is evident.

In addition, Hewitt modeled these events and estimated deposition values of 0.75 g/ha, 0.41
147
g/ha, 0.076 g/ha and 0.0645 g/ha, respectively. Again, even assuming that wind was
148
blowing towards Ecuador, which is not usually the case , deposition of the spray mixture
in Ecuadorian territory as a result of drift was insignificant ,149 and therefore all of the

alleged effects claimed are false, even the alleged loss of cropsand plants turning yellow.

This was further evidenced by Evans, who conducted an analysis to identify and quantify
vegetation changes that occurred within the area from September 12 to October 14, 2002,

using satellite images. He concluded that no significant change in vegetation condition is

145
146 EM, Vol. IV, Annex 203.
ER, para. 3.51, fn. 498.
147 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
16, 30 56 and 59.
148 See CR, Vol. I, Chap. 2, sec. C, paras. 2.221 -2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
149 The level of concern for amphibians, the most sensitive animal species according to Ecuador, is

1,368 g/ha; and between 36 and 1,958 g/ha for various crops.

Appendix page 114evident during the time period discussed as would be expected if the spraying had caused
150
the types of damages alleged by the witness.

But, once again, the statement does not end without mentioning the common alleged effects
and dramatic statementsin a structured and evidently pre-prepared fashion:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “Weeks later, my hands and feet broke
out in a rash and spots which caused an intense itch. This disease on the skin

took several months to disappear.”
− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “A few

minutes after the planes passed over us, I felt like there was fire in my eyes and
a strong headache.” “The headache has been the most difficult, because even
now I suffer from severe headaches and dizziness. A few days after the

sprayings, my children had vomiting and a fever that lasted for several days.”
• Loss of crops, and plants turning yellow. “Ten days after the sprayings the crop

started to turn yellow, until it dried up completely. The yucca had rotted inside. The
plantains became dry and black.”

• Alleged effects on soil and loss of productivity. “We waited a few months and then
we replanted. Now, we have maize but it does not produce as much as it used to, the

fruit often comes out hard. Work is done little by little, it requires a lot of care, but it
grows only a little and then dries up.”

• Alleged impacts on animals. “The animals were also affected. Two cows that we
had miscarried. We lost a horse, a cow and some pigs. Chickens turned up dead

under the trees.”
• He/she had never experienced anything similar before. “We lost everything we had.
We had never seen anything like it.”

• Final dramatic statements. “The fumigations have made it difficult for us to keep
many of our traditions.” “It has been very difficult to get by in our community.”

“Our only hope is that they do not spray again, but we live in fear because they have
sprayed several times since that first time.” “I decided that we must stay to defend

our land and life – to take it”.

150 See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by Dr Barry M. Evans, Dec. 2011,
paras. 3.52- 3.69, pp. 14-38; “[I]t is technically impossible to attribute the effects alleged by the Ecuadorian
witnesses to the spraying in Colombian territory, and the results corroborate my opinion to the effect that the
few changes observed on the images in theSan Francisco study area were much more likely a result of typical
cultivation practices.” Ibid., para. 3.69, p. 64.

Appendix page 115Appendix page 116 Witness 18
(EM, Vol. IV, Annex 204)

Appendix page 117 0°15'N

km
5

76°50'W 76°50'W
4

3

2 Scale: 1:100,000
theSrpivthaewInatknal boundary

Spray lineote:er

Projection: UTM zone 18; Datum: WGS-84
0
l
u
i
n
S
í
R

COLOMBIA

ECUADOR

76°55'W 76°55'W
San Francisco II
DisDisnintancttroerreTaaslid650iI573m50kmon

San Francisco I

PERU

COLOMBIA

77°0'W 77°0'W
ECUADOR
DisDinistanbsei(eFrterutiwsen7iI14b810k8on7 m
PACIFIC
Figure 7. San Francisco I–II, Spray Lines in 2000 (Witnesses 14-18-19)
0°15'N

Appendix page 118 San Francisco I– II, 2000 (witness 18)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SAN FRANCISCO I Y II IN 2000 (Witnesses 14-18-19)

OBJECTIDLINE_IDTIME ALTITUX DTERACK MPH HEADIN SGSPRAY_RA DTOEPSVUSEDFSTNID ASCIINAMELENGTM H ONTSHWATM HISSIOANIRCRAAF_TC_CRCORPOP
3813 00272112:59:06.31,100 -39,59 194,200 3,6001 0 1 8 8 0 -1 l260kdac 152,9770012 50 Coca T-65 T-65_CoCcoaca

PARAMETERS 12:59 FEET MILES/HOUR 26 September 2000
ADDED ATTRIBUTES

Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
335 281 54
Attribute Table 14

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO SAN FRANCISCO I Y II IN 2000(Witnesses 14-18-19)

OBJECTIDLINE_ID TIME ALTITUDEXTRACK MPH HEADINGS SPRAY_RAEOPSV USEDDF STNID ASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFT_C_CROCPROP
3360 00274812:58:57.001,100 -81,4177,280 3,560 1 0 0,90012 9 12 100 l260cfac 1491,8770012 50 Coca T-65 T-65_Cocaoca
PARAMETERS 12:58 FEET MILES/HOUR 26 September 2000

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
335 282 53

Attribute Table 15

SAN FRANCISCO I AND SAN FRANCISCO II:

Distance of the two closest spray lines to San Francisco I location: 7,110 metres and 7,250

metres, over seven kilometres.

Distance of the two closest spray lines to San Francisco II location: 7,010 metres and 7,350

metres, over seven kilometres.

Distance of the closest spray line to witnesses 14 and 18 location: 3,817 metres and 2,817

metres, respectively.

Distance of the two lines to the Ecuadorian bank on the border river: 1,817 metres, nearly

two kilometres, and 1,960 metres, nearly two kilometres.

151
Hewitt modeled these events and estimated a deposition value of 0.01 g/ha each. The

level of concern for amphibians, the most sensitive animal species according to Ecuador, is
152
1,368 g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no

damage could have been caused in Ecuador.

151 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , rows

69 and 71.
152 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), pa ra. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 119Witness 18:

The witness states that she has lived in San Francisco I for twenty -five years. She claims

that the first time that the sprayings occurred she was clearing the ground with a friend in
preparation for planting watermelons, about a kilometre from the San Miguel River, and

that at ten in the morning, the spraying started. Then the witness describes the alleged
effects. She further holds that “[the crops] dried up again when the planes returned and
153
sprayed in the following years.”

There is no indication as to date, but according to the Spray Data from the Department of
State, the “first time” the sprayings were conducted near that area was in the year 2000. The

events shown in Figure 7 were sprayings in 2 000. All of them were carried out on

Colombian territory, at least at the following distances: Over 7 kilometres from the San
Francisco I location; almost 3 kilometres from the witness’s reported location (“...the first

time... I was... about a kilometre from San Miguel River”); and nearly 2 kilometres from
the river bank of the Ecuadorian side of the border. Yet, the witness implies that the planes

sprayed over Ecuadorian territory: “The planes crossed the river to the Ecuadorian side and
turned around near Mrs. Meche’s farm. We could see the planes spraying a liquid as they

passed by.” And he further says: “At first, I could hear the noise of the planes and then I
began to smell a nasty odor in the air.” The falsehood is evident.

Hewitt estimated a deposition value of 0.01 g/ha for each event. 154Therefore, drift could

not have resulted in significant deposition, or in any of the alleged effects complained of by
the witness, even if the wind was blowing toward Ecuador, which is not the general trend.

In fact, the deposition level of concern for amphibians, the most sensitive animal species
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 155

Thus, no damage could have been caused in Ecuador.

This was also confirmed by Dr Evans. After conducting an analysis on satellite images to

identify and quantify vegetation changes that occurred within the area from September 12
to October 14, 2002, he concluded that no significant change in vegetation condition is

evident during the tim e period discussed as would be expected if the spraying had caused
the types of damages alleged by the witness. 156

153
EM, Vol. IV, Annex 204.
154 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
69 and 71.
155 See CR, Vol. II, Annex 1: Hewitt Report – Response to Gil es (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.
156 See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by Dr Barry M. Evans, Dec. 2011,

paras. 3.52- 3.69, pp. 14-38; “[I]t is technically impossible to attribute the effects alleged by the Ecuadorian
witnesses to the spraying in Colombian territory, and the results corroborate my opinion to the effect that the

Appendix page 120With regard to the alleged effects, this time the witness goes as far as to claim that she
suddenly felt pain in her throat and it felt raw. T hen she adds: “To this day, I still have

health problems, every morning I have a pus-like [substance] in my throat and I have to spit
it out.” Nothing like that, as shown above, could possibly happen. 157 But then she follows
the usual prepared lines:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “Also, my face was burning and my
skin broke out in a rash.” “A few days later, bumps appeared on parts of my

body that had not been covered by my clothes, and they itched. Where my arms
were covered by sleeves, there were only small bumps, and they did not bother

me as much. But the other bumps burned.” “Shortly after the spraying, three of
[my children] became sick with bumps on their skin”.
− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “Shortly

after the spraying, three of [my children] became sick with […] vomiting,
nausea, and diarrhea.”

• Loss of crops, and plants turning yellow. “At the same time, shortly after the
fumigations, the plantain died. The maize s talks withered and turned yellow.”

“[D]uring those days, all the plants were affected, from pasture to fruit trees.
Nothing survived. The yucca died before the other plants.”

• Alleged effects on soil and loss of productivity. “We have replanted yucca, but t o
this day, despite cooking the yucca, it is hard and inedible.” “After that month, we
tried replanting the crops but the plants did not do well.”

• Alleged impacts on animals. “Also, four of the eight pigs died. They lost hair off
their backs and they rolle d around on the ground as if something had bitten them,

the same thing with the dogs. We also had four cows and they died.”
• He/she had never experienced anything similar before. “I had never seen this type of

disease in plants before.” “It was also rare and very difficult for the disease to have
affected the plants, people and animals all at the same time – I had never seen

anything like it in my life.”
• Final dramatic statements. “After all the problems caused by the fumigations, eight
of my children decide d to look for a job in the highlands, and they do not want to

return because they are afraid; they hear an airplane and they think that they are
going to spray again.” “For now, we hope that the planes do not spray again and

steal our new investment”.

few changes observed on the images in theSan Francisco study area were much more likely a result of typical
cultivation practices.” Ibid., para. 3.69, p. 64.
157 See above paras. 5-11.

Appendix page 121Appendix page 122 Witness 19

(EM, Vol. IV, Annex 205)

Appendix page 123 0°15'N

km
5

76°50'W 76°50'W
4

3

2 Scale: 1:100,000
theSrpivthaewInatknal boundary

Spray lineote:er

Projection: UTM zone 18; Datum: WGS-84
0
l
u
i
n
S
í
R

COLOMBIA

ECUADOR

76°55'W 76°55'W
San Francisco II
DisDisnintancttroerreTaaslid650iI573m50kmon

San Francisco I

PERU

COLOMBIA

77°0'W 77°0'W
ECUADOR
DisDinistanbsei(eFrterutiwsen7iI14b810k8on7 m
PACIFIC
Figure 7. San Francisco I–II, Spray Lines in 2000 (Witnesses 14-18-19)
0°15'N

Appendix page 124 San Francisco I– II, 2000 (witness 19)

Metadata of the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO SAN FRANCISCO I Y II IN 2000 (Witnesses 14-18-19)

OBJECTIDLINE_IDTIME ALTITUX DTERACK MPH HEADIN SGSPRAY_RADTOEPSVUSEDDFSTNID ASCIINAMELENGTM H ONTSHWATMHISSIOANIRCRAAF_TC_CRCORPOP

3813 00272112:59:06.31,100 -39,59 194,200 3,6001 0 1 8 8 0 -1 l260kdac 152,9770012 50 Coca T-65 T-65_CoCcoaca
PARAMETERS 12:59 FEET MILES/HOUR 26 September 2000

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
335 281 54
Attribute Table 14

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO SAN FRANCISCO I Y II IN 2000(Witnesses 14-18-19)
OBJECTIDLINE_ID TIME ALTITUXTRACK MPH HEADINGS SPRAY_RAEOPSV USEDDF STNID ASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFT_C_CROCPROP

3360 00274812:58:57.001,100 -81,4177,280 3,560 1 0 0,90012 9 12 100 l260cfac 1491,8770012 50 Coca T-65 T-65_Cocaoca
PARAMETERS 12:58 FEET MILES/HOUR 26 September 2000

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
335 282 53

Attribute Table 15

SAN FRANCISCO I AND SAN FRANCISCO II:

Distance of the two closest spray lines to San Francisco I location: 7,110 metres and 7,250

metres, over seven kilometres.

Distance of the two closest spray lines to S an Francisco II location: 7,010 metres and 7,350

metres, over seven kilometres.

Distance of the closest spray line to witnesses 14 and 18 location: 3,817 metres and 2,817

metres, respectively.

Distance of the two lines to the Ecuadorian bank on the borde r river: 1,817 metres, nearly

two kilometres, and 1,960 metres, nearly two kilometres.

158
Hewitt modeled these events and estimated a deposition value of 0.01 g/ha, each. The

level of concern for amphibians, the most sensitive animal species according to Ec uador, is

1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 159 This shows that no

damage could have been caused in Ecuador.

158 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , rows

69 and 71
159 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8 , p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 125Witness 19:

The witness states that he has “worked as a farmer in San Francisco I, Sucumbíos, for
twenty years, ever s ince [he] was a child.” He claims that “[w] hen the first spraying

occurred, [he] was at [his] house. In the sky, above the bank of the river , there were two
planes and two helicopters.” Then he adds that shortly after the spraying the alleged effects
160
began. There is no indication as to date, but according to the Spray Data from the
Department of State, the “first spraying” near that area was in the year 2000.

Indeed, the events shown in Figure 7, were sprayings on Colombian territory, at distances
of over 7 kilometres from the San Francisco I location, and nearly 2 kilometres from the

river bank of the Ecuadorian side of the border. Yet, the witness claims that from his house
he could see the planes above the bank of the river.”

Furthermore, at the distances involved and with the general wind trends in the area, 161none

of the alleged effects could have possibly occurred. Indeed, Hewitt’s modeling of these
162
events resulted in an estimated deposition value of 0.01 g/ha for each event. The level of
concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
163
g/ha; and between 36 and 1,958 g/ha for various crops.

Dr Evans also confirmed that no significant change in vegetation condition is evident
during the time period discussed as would be expected if the spraying had caused the types
164
of damages alleged by the witness.

The falsehood is evident. But, moreover, the witness also follows the usual structure:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “[A]fter the sprayings, we experienced

some kind of epidemic in which all the children in the community became sick
with […] skin bumps. Immediately after the sprayings, my eight -month-old son

was hospitalized for fifteen days, with […] bumps on his skin.”

160
EM, Vol. IV, Annex 205.
161 See CR, Vol. I, Chap. 2, sec. C, paras. 2.221-2.224; see also CR, Vol. II,, Annex 19: IDEAM
Climate Characterization (2011).
162 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows

163and 71.
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
164. III, Annex 131-B, p. 330.
See CR, Vol. II,, Annex 6: Dr B.M. Evans, Ph.D., Expert Rep ort by Dr Barry M. Evans, Dec. 2011,
3.52- 3.69, pp. 14 -38; “ [I]t is technically impossible to attributeeffects alleged by the Ecuadorian
witnesses to the spraying in Colombian territory, and the results corroborate my opinion to the effect that the
few changes observed on the images in theSan Francisco study area were much more likely a result of typical
cultivation practices.” Ibid., para. 3.69, p. 64.

Appendix page 126 − Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “At that

moment, after the sprayings, we experienced some kind of epidemic in which all
the children in the community became sick with vomiting, diarrhea […].
Immediately after the sprayings, my eight -month-old son was hospitalized for

fifteen days, with diarrhea, vomiting […].” “We had diarrhea and vomiting, but
not as bad as my son. We had it for a week.”

• Loss of crops, and plants turning yellow. “Shortly after they sprayed, all the plants
died.” “The plantains did not develop fully, they remained thin and then dried up.
The yuccas died. So did the coffee. The roots were dry.”

• Alleged effects on soil and loss of productivity. “ Now, we can sow once again the
land of San Francisco, but it does not produce like it did before. But as each day

goes by after the sprayings, one can see that the productivity is improving little by
little”.
• Alleged impacts on animals. “I had chickens and pigs. All the animals died. They

died gradually. The animals started getting thin, all at the same time. They did not
want to eat the grass that had turned yellow and dry after the sprayings”. “The

neighbors had the same problem with their animals”.
• He/she had never experienced anything similar before. “In all the years that I have
worked the land, I have never seen anything like it.”

• Final dramatic statements. “In the end, there was no food, and for the first time in
my life I stopped working on my farm in San Francisco and found a job doing

construction in Lago Agrio. I did it so that I could buy food in town. In other years
when the plants died after the sprayings, since we had nothing to work with on our
farms, we went to work in farms that were farther away from the border.”

Appendix page 127Appendix page 128 Witness 20

(EM, Vol. IV, Annex 206)

Appendix page 129 0°16'N 0°14'N

76°44'W 76°44'W

Puerto Escondido

Corazón Orense

DisDtinistanbttroetórtTare2n10d:dno40an1k0on

76°46'W 76°46'W

ECUADOR

COLOMBIA

76°48'W 76°48'W

DisDinistanbttrreutrtTaru2n1ed)dno10an2k5on

km
3 DisDintitanActrroetrtTaruln9o):ado25an0k0on PERU

l
2 u
i
M
naS
oí COLOMBIA
R
Scale: 1:60,000
theSrpi1rthaewInatnal boundary

76°50'W Spray linete:ver 76°50'W

Projection: UTM zone 18; Datum: WGS-84

0 ECUADOR
PACIFIC

0°16'N 0°14'N Figure 5. Corazón Orense–Puerto Escondido, Spray Lines in 2002 (Witnesses 8
-9-20-21-22-23)

Appendix page 130 Corazón Orens– ePuerto Escondido, 20(0w 2itness 20)

Metadata of the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)
OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIMELATITUDE LONGITUDEALTITUDDEOPFLT_TIMFELT_LENGTHTE SPEED VOLUMAEREA LOG LENGTHMONTHSWATHAIRCRAFCTROPA_C_CROP
1084 399 J102Q7AC.B99 302-1Right150 17:48:43:57 0.26335588-76.780273517061 0,890 2761,1 16,100 219,900 2,600 0 J102Q7A2C32,761021085 OV-10 CocaOV-10_Coca

PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
323 280 43

Attribute Table 9

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)
OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIMELATITUDE LONGITUDEALTITUDDEOPFLT_TIMFELT_LENGTHTE SPEED VOLUMAEREA LOG LENGTHMONTHSWATHAIRCRAFCTROPA_C_CROP

1086 401 J102Q7AC.B99 302-1Right150 17:48:52:74 0.26343991-76.772095718028 0,890 0211 10,200 224,800 2,300 0 J102Q7A6C4,493 021085 OV-10 CocaOV-10_Coca
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)

313 265 48
Attribute Table 10

ATTRIBUTE TABLE OF THE THIRD CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)

OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIMELATITUDE LONGITUDEALTITUDDEOPFLT_TIMFELT_LENGTHTE SPEED VOLUMAEREA LOG LENGTHMONTHSWATHAIRCRAFCTROPA_C_CROP
1085 400 J102Q7AC.B99 302-1Right150 17:48:48:47 0.26340366-76.775924912041 0,890 2726 1,5 223 2,600 0 J102Q7A2C20,454021085 OV-10 CocaOV-10_Coca
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES

Spray Line Altitude Ground Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
316 274 42

Attribute Table 11

CORAZÓN ORENSE AND PUERTO ESCONDIDO:

Distance of the three closest spray lines to Corazón Orense location: 5,125 metres, over five

kilometres; 4,810 metres, nearly five kilometres; and 4,640 metres, over four and a half

kilometres.

Distance of the three closest spray lines to Puerto Escondido location: 3,300 metres, over

three kilometres; 2,925 metres and 2,710 metres, nearly three kilometres each.

Distance of the three closest spray lines to the Ecuadorian bank on the border river: 3,09 0

metres, over three kilometres; 2,720 metres, nearly three kilometres; and 2,515 metres, over

two and a half kilometres.

Hewitt modeled these events and estimated deposition values of 1.2 g/ha, 1.1 g/ha and 0.11

165
g/ha, respectively. This shows that no damage could have been caused in Ecuador.

165
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , rows
10, 13 and 50.

Appendix page 131Witness 20:

Witness 20 states that he lives “in Puerto Escondido, Ecuador, where [he has] a house and a
farm”. He describes the alleged effects of the first spraying that heremembers which was in

2002. “It was late in the morning.” “The planes were flying like vultures fighting for food,
going up and down repeatedly. They were dropping white liquid that extended throughout

the air. In some areas it fell directly, in others it drifted with the wind.” The only reference
provided as to his location at the alleged time of the spraying is as follows: “I was with the
166
pigs by the plantain fields.”

The events shown in Figure 5 were sprayings on Colombian territory, at distances of
between nearly and over 3 kilometres fr om the Puerto Escondido location or between 2.5
and 3 kilometres from the Ecuadorian bank on the border river. Yet, the witness claims that

the spray mixture smelled bad, he could barely stand it, he felt the mist go into his eyes, and
“[i]n some areas it fell directly”.

Dr Hewitt modeled these events and estimated downwind deposition values of 1.2 g/ha,
167
1.1 g/ha and 0.11 g/ha, respectively. This is an insignificant amount , as t he level of
concern for amphibians, the most sensitive animal species accordi ng to Ecuador, is

1,368 g/ha; and between 36 and 1,958 g/ha for various crops. Therefore it could not have
possibly caused any of the alleged effects in animals, plants and crops in Ecuador , much
168
less considering the actual wind trends in the area. The falsehood is evident.

But, moreover, the witness’s lines were also prepared in the following fashion:

• Alleged impacts on human health:
− Serious skin irritation/itching and bumps.

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “I
started to feel sick and I immediately returned home. I got a headache and

dizziness”. “Still, a few days later my seven children had stomach aches and
diarrhea.” “[A]lso, the other children in the community became sick with the

same thing.”
• Loss of crops, and plants turning yellow. “The plants died a week or two after the

sprayings. The maize started to bend. I had three hectares of yucca and I was not
able to harvest any; it all dried up. I also had ten hectares of coffee and cocoa, all of

which turned yellow.”

166
167 EM, Vol. IV, Annex 206.
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
10, 13 and 50.
168 See CR, Vol. I, Chap. 2, sec. C, paras. 2.221 -2.224; see also CR, Vol. II, Annex 19: IDEAM Cl imate
Characterization (2011).

Appendix page 132• Alleged impacts on animals. “All of my 8 pigs died. At first they were very fat, we

usually fed them orito , but after the fumigations the oritos were sick. The pigs did
not want eat [sic] they became thin, and consequently they died.”
• He/she had never experienced anything similar before. “Before, they were healthy.

They had never been sick like this before”.
• Final dramatic statements. “After what happened with the first spraying, I did not

want to replant and lose all of my money again in the next spray ing. I could have
replanted yucca, but I was afraid it would be destroyed again”.

Appendix page 133Appendix page 134 Witness 21

(EM, Vol. IV, Annex 207)

Appendix page 135 0°16'N 0°14'N

76°44'W 76°44'W

Puerto Escondido

Corazón Orense

DisDtinistanbttroetórtTare2n10d:dno40an1k0on

76°46'W 76°46'W

ECUADOR

COLOMBIA

76°48'W 76°48'W

DisDinistanbttrreutrtTaru2n1ed)dno10an2k5on

km
3 DisDintitanActrroetrtTaruln9o):ado25an0k0on PERU

l
2 u
i
M
naS
oí COLOMBIA
R
Scale: 1:60,000
theSrpi1rthaewInatnal boundary

76°50'W Spray linete:ver 76°50'W

Projection: UTM zone 18; Datum: WGS-84

0 ECUADOR
PACIFIC

0°16'N 0°14'N Figure 5. Corazón Orense–Puerto Escondido, Spray Lines in 2002 (Witnesses 8
-9-20-21-22-23)

Appendix page 136 Corazón Orens –ePuerto Escondido, 20 (02itness 21)

Metadata of the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)

OBJECTIDSEG FILE_NAMEMISSIOSIDELINESTART_TIMELATITUDE LONGITUDAELTITUDDEOPFLT_TIMFELT_LENGTOHSPEED VOLUMAEREA LOG LENGTH MONTSHWATHAIRCRACFTROPA_C_CROP
1084 399 J102Q7AC.B99302-R1ight150 17:48:43:57 0.26335588-76.780273150761 0,89761,1 16,100 219,900 2,600 0 J102Q7A2C32,76102185 OV-10CocaOV-10_Coca
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over

overMSL(Metres) overMSL(Metres) GroundLevel (Metres)
323 280 43

Attribute Table 9

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)
OBJECTIDSEG FILE_NAMEMISSIOSIDELINESTART_TIMELATITUDE LONGITUDAELTITUDDEOPFLT_TIMFELT_LENGTOHSPEED VOLUMAEREA LOG LENGTH MONTSHWATHAIRCRACFTROPA_C_CROP

1086 401 J102Q7AC.B99302-R1ight150 17:48:52:74 0.26343991-76.772095170828 0,89211,6 10,200 224,800 2,300 0 J102Q7A6C4,493 02185 OV-10CocaOV-10_Coca
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
313 265 48

Attribute Table 10

ATTRIBUTE TABLE OF THE THIRD CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)
OBJECTIDSEG FILE_NAMEMISSIOSIDELINESTART_TIMELATITUDE LONGITUDAELTITUDDEOPFLT_TIMFELT_LENGTOHSPEED VOLUMAEREA LOG LENGTH MONTSHWATHAIRCRACFTROPA_C_CROP

1085 400 J102Q7AC.B99302-R1ight150 17:48:48:47 0.26340366-76.775924190241 0,89726,2 1,5 223 2,600 0 J102Q7A2C20,454021085 OV-10CocaOV-10_Coca
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
316 274 42

Attribute Table 11

CORAZÓN ORENSE AND PUERTO ESCONDIDO:

Distance of the three closest spray lines to Corazón Orense location: 5,125 metres, over five

kilometres; 4,810 metres, nearly five kilometres; and 4,640 metres, over four and a half

kilometres.

Distance of the three closest spray lines to Puerto Escondido location: 3,300 metres, over

three kilometres; 2,925 metres and 2,710 metres, nearly three kilometres each.

Distance of the three closest spray lines to the Ecuadorian bank on the border river: 3,090

metres, over three kilometres; 2,720 metres, nearly three kilometres; and 2,515 metres, over

two and a half kilometres.

Hewitt modeled these events and estimated deposition values of 1.2 g/ha, 1.1 g/ha and 0.11

169
g/ha, respectively. This shows that no damage could have been caused in Ecuador.

169
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , rows

10, 13 and 50.

Appendix page 137Witness 21:

Witness 21 states that she has lived in Puerto Escondido, province of Sucumbíos, Ecua dor,
for the past eighteen years. Even though the witness does not mention a date or even a year,

she states that “[she] was outside of [her] house when the first spraying occurred… One
”170
could see the planes very close, on the other side of the river.

The events shown in Figure 5 were sprayings on Colombian territory, at distances of
between nearly and over 3 kilometres from the Puerto Escondido location or between 2.5

and 3 kilometres from the Ecuadorian bank on the border river , and yet the witness claims
that she could see the planes very close, on the other side of the river. T he falsehood is

evident.

She even claims that “[her] house is less than one hundred meters from the river and, if it
were not for the forest, one could see the river from [her] kitchen.” As Colombia has

proven in the Rejoinder, canopy in fact acts as an effective barrier to drift. 171Then, even if
172
the wind was blowing towards Ecuador the canopy described by the witness would have
intercepted most of the spray mi x, reducing it to amounts way below the level of concern

even for the most sensitive species.

But the statement even goes further in its falsity claiming alleged effects that could not
possibly happen, not even for plants and crops. Indeed, Hewitt modeled these events at the

distances involved, and estimated insignificant deposition values of 1.2 g/ha, 1.1 g/ha and
0.11 g/ha, respectively. 173 The level of concern for amphibians, the most sensitive animal

species according to Ecuador, is 1,368 g/ha; an d between 36 and 1,958 g /ha for various
174
crops. This shows that no damage could have been caused in Ecuador.

In this statement the script was not as complete as in the previous statements, but
nevertheless most of the common elements are repeated, showing its pre-prepared nature:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps.

170
171 EM, Vol. IV, Annex 207.
See CR, Vol. I, Chap. 2, sec. B, paras. 2.122-2.126.
172 This is not usually the case according to the wind trends in the relevant area. See CR, Vol. I, Chap. 2,
sec. C, paras. 2.221-2.224; see also CR, Vol. II, Annex 19: IDEAM Climate Characterization (2011).
173 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results, rows
10, 13 and 50.
174 See CR, Vol. II,, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 138 − Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “With

each spraying, all six [of my children] had a flu, with a runny nose,
inflammation of the throat, chills and fever. They had trouble breathing.”
• Loss of crops, and plants turning yellow. “After each spraying, the maize

plantations were damaged. The rice no longer grew, it became yellowish.”
• Alleged effects on soil and loss of productivity. “ After this, the soil became weak.

The crops that grew were weak, small and of poor quality. The quantities of maize
harvested now are far less than what could be drawn from the earth before.”
• Alleged impacts on animals. “Both times, I had chickens that died. The firs t chicks

born after the first spraying had no eyes and they were disfigured; they were very
strange. Many of the chickens that were healthy before could no longer lay eggs,

due to the lack of maize, since the plants had been damaged”.

Appendix page 139Appendix page 140 Witness 22

(EM, Vol. IV, Annex 208)

Appendix page 141 0°16'N 0°14'N

76°44'W 76°44'W

Puerto Escondido

Corazón Orense

DisDtinistanbttroetórtTare2n10d:dno40an1k0on

76°46'W 76°46'W

ECUADOR

COLOMBIA

76°48'W 76°48'W

DisDinistanbttrreutrtTaru2n1ed)dno10an2k5on

km
3 DisDintitanActrroetrtTaruln9o):ado25an0k0on PERU

l
2 u
i
M
naS
oí COLOMBIA
R
Scale: 1:60,000
theSrpi1rthaewInatnal boundary

76°50'W Spray linete:ver 76°50'W

Projection: UTM zone 18; Datum: WGS-84

0 ECUADOR
PACIFIC

0°16'N 0°14'N Figure 5. Corazón Orense–Puerto Escondido, Spray Lines in 2002 (Witnesses 8
-9-20-21-22-23)

Appendix page 142 Corazón Orens–ePuerto Escondido, 20(0 w2itness 22)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)

OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIMELATITUDE LONGITUDEALTITUDDEOPFLT_TIMFELT_LENHTE SPEED VOLUMAEREA LOG LENGTHMONTH SWATHAIRCRAFCTROPA_C_CROP
1084 399 J102Q7AC.B99302-R1ight150 17:48:43:57 0.26335588-76.780273517061 0,890 761,1 16,100 219,900 2,600 0 J102Q7A2C32,7610210 85 OV-10CocaOV-10_Coca
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES

Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
323 280 43

Attribute Table 9

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)
OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIMELATITUDE LONGITUDEALTITUDDEOPFLT_TIMFELT_LENHTE SPEED VOLUMAEREA LOG LENGTHMONTH SWATHAIRCRAFCTROPA_C_CROP
1086 401 J102Q7AC.B99302-R1ight150 17:48:52:74 0.26343991-76.772095718028 0,890 211 10,200 224,800 2,300 0 J102Q7A6C4,493 0210 85 OV-10CocaOV-10_Coca

PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
313 265 48

Attribute Table 10

ATTRIBUTE TABLE OF THE THIRD CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)

OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIMELATITUDE LONGITUDEALTITUDDEOPFLT_TIMFELT_LENHTE SPEED VOLUMAEREA LOG LENGTHMONTH SWATHAIRCRAFCTROPA_C_CROP
1085 400 J102Q7AC.B99302-R1ight150 17:48:48:47 0.26340366-76.775924912041 0,890 726 1,5 223 2,600 0 J102Q7A2C20,4540210 85 OV-10CocaOV-10_Coca
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES

Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
316 274 42

Attribute Table 11

CORAZÓN ORENSE AND PUERTO ESCONDIDO:

Distance of the three closest spray lines to Corazón Orense location: 5,125 metres, over five

kilometres; 4,810 metres, nearly five kilometres; and 4,640 metres, over four and a half

kilometres.

Distance of the three closest spray lines to Puerto Escondido location: 3,300 metres, over

three kilometres; 2,925 metres and 2,710 metres, nearly three kilometres each.

Distance of the three closest spray lines to the Ecuadorian bank on the border river: 3,090

metres, over three kilometres; 2,720 metres, nearly three kilometres; and 2,515 metres, over

two and a half kilometres.

Hewitt modeled these events and estimated deposition values of 1.2 g/ha, 1.1 g/ha and 0.11

175
g/ha, respectively. This shows that no damage could have been caused in Ecuador.

175
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results, rows

10, 13 and 50.

Appendix page 143Witness 22:

Witness 22 states that he lives in the community of Puerto Escondido, in the province of

Sucumbíos, Ecuador, locate d on the edge of the San Miguel River, which borders
Colombia. He claims that since the year 2002, or thereabouts, Colombia has sprayed around

there approximately every six or eight months for a number of years. The witness describes
the alleged impacts produced within a few weeks after “one of the first times”. 176 Even

though he does not provide any dates, according to the Spray Data from the Department of
State sprayings near that area occurred for the first time in 2002.

Indeed, the events shown in Figure 5 were sprayings on Colombian territory in 2002, at

distances of between nearly and over 3 kilometres from the Puerto Escondido location or
between 2.5 and 3 kilometres from the Ecuadorian bank on the border river. Yet the witness

claims that “[f]rom the planes came out a whitish smoke, and with the wind came a horrible
smell. The smell was perceived most strongly maybe three hours after the spraying, and it

remained for a prolonged period of time. The falsehood is evident.

Hewitt modeled these events and estimated downwind deposition values of 1.2 g/ha, 1.1
g/ha and 0.11 g/ha, respectively. 177The level of concern for amphibians, the most sensitive

animal species according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for
various crops. 178 This shows that no damage could have been caused in Ecuador, even if
179
the wind had been blowing south, towards Ecuador.

As for the common elements the witness claims the following:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “My nephews had red bumps on their
skin”.

− Eye burning/Chiefly on children, he adaches, vomit, fever and diarrhea. “I had
strong headaches, and a recurring flu. I became so sick that I could not work nor

take care of my farm.” “My nephews had […] diarrhea, cough, and fever, and
their eyes would turned red and burned.”

• Loss of crops, and plants turning yellow. “The plants turned yellow, the maize no
longer produced, the leaves from the coffee fell off”.

176 EM, Vol. IV, Annex 208.
177 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
10, 13 and 50.
178
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
179. III, Annex 131-B, p. 330.
See CR, Vol. I, Chap. 2, sec. C, paras. 2.221-2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).

Appendix page 144• Alleged effects on soil and loss of productivity. “Before they sprayed, I could

harvest twenty five or thirty quintals from one or two hectares in my farm.
Afterward, nothing was harvested. The land no longer supported the plants, and the
few plants that came out were too small and of poor quality.”

• Alleged impacts on animals. “[T]he chickens no longer incubated their eggs. The
chicks were born with no eyes, only with the cavities where the eyes should have

been, and some were deformed with the beak longer than normal, the body crushed,
and the legs crooked. They died a few hours after birth.” “The dogs got thin. At the
same time, the pigs got sick and did not fatten up. Pregnant pigs, like the chickens,

did not have good offspring. They were born weak and undernourished, and they
were not well developed.” “In addition, shortly after the spraying, I saw dead
muchileros. Muchileros are wild birds about the size of a small chicken with bluish-

black feathers.”
• He/she had never experienced anything similar before. “I had never seen anything

like it before [referring to the alleged blind chickens].” “Their mother had never
seen her children like that, with so many problems at the same time, she did not
know how to treat them.”

• Final dramatic statements. “We barely had anything to eat. We had no money to pay
for my family, just as we had nothing to sell in the market. Now, as of two years

ago, since there have been no sprayings, the soil has been improving; and we have
some produce to sell”.

Appendix page 145Appendix page 146 Witness 23

(EM, Vol. IV, Annex 209)

Appendix page 147 0°16'N 0°14'N

76°44'W 76°44'W

Puerto Escondido

Corazón Orense

DisDtinistanbttroetórtTare2n10d:dno40an1k0on

76°46'W 76°46'W

ECUADOR

COLOMBIA

76°48'W 76°48'W

DisDinistanbttrreutrtTaru2n1ed)dno10an2k5on

km
3 DisDintitanActrroetrtTaruln9o):ado25an0k0on PERU

l
2 u
i
M
naS
oí COLOMBIA
R
Scale: 1:60,000
theSrpi1rthaewInatnal boundary

76°50'W Spray linete:ver 76°50'W

Projection: UTM zone 18; Datum: WGS-84

0 ECUADOR
PACIFIC

0°16'N 0°14'N Figure 5. Corazón Orense–Puerto Escondido, Spray Lines in 2002 (Witnesses 8
-9-20-21-22-23)

Appendix page 148 Corazón Orens– ePuerto Escondido, 20(0w 2itness 23)

Metadataof the closest spray line

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)

OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIMELATITUDE LONGITUDEALTITUDDEOPFLT_TIMFELT_LENGTHTE SPEED VOLUMAEREA LOG LENGTHMONTHSWATHAIRCRAFCTROPA_C_CROP
1084 399 J102Q7AC.B99 302-1Right150 17:48:43:57 0.26335588-76.780273517061 0,890 2761,1 16,100 219,900 2,600 0 J102Q7A2C32,761021085 OV-10 CocaOV-10_Coca
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES

Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
323 280 43

Attribute Table 9

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)

OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIMELATITUDE LONGITUDEALTITUDDEOPFLT_TIMFELT_LENGTHTE SPEED VOLUMAEREA LOG LENGTHMONTHSWATHAIRCRAFCTROPA_C_CROP
1086 401 J102Q7AC.B99 302-1Right150 17:48:52:74 0.26343991-76.772095718028 0,890 0211 10,200 224,800 2,300 0 J102Q7A6C4,493 021085 OV-10 CocaOV-10_Coca

PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
313 265 48

Attribute Table 10

ATTRIBUTE TABLE OF THE THIRD CLOSEST SPRAY LINE TO CORAZON ORENSE - PUERTO ESCONDIDO IN 2002 (Witnesses 8-9-20-21-22-23)
OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TIMELATITUDE LONGITUDEALTITUDDEOPFLT_TIMFELT_LENGTHTE SPEED VOLUMAEREA LOG LENGTHMONTHSWATHAIRCRAFCTROPA_C_CROP

1085 400 J102Q7AC.B99 302-1Right150 17:48:48:47 0.26340366-76.775924912041 0,890 2726 1,5 223 2,600 0 J102Q7A2C20,454021085 OV-10 CocaOV-10_Coca
PARAMETERS 10 October 2002 12:48 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)

316 274 42
Attribute Table 11

CORAZÓN ORENSE AND PUERTO ESCONDIDO:

Distance of the three closest spray lines to Corazón Orense location: 5,125 metres, over five

kilometres; 4,810 metres, nearly five kilometres; and 4,640 metres, over four and a half

kilometres.

Distance of the three closest spray lines to Puerto Escondido location: 3,300 metres, over

three kilometres; 2,925 metres and 2,710 metres, nearly three kilometres each.

Distance of the three closest spray lines to the Ecuadorian bank on the border river: 3,090

metres, over three kilometres; 2,720 metres, nearly three kilometres; and 2,515 metres, over

two and a half kilometres.

Hewitt modeled these events and estimated deposition values of 1.2 g/ha, 1.1 g/ha and 0.11
180
g/ha, respectively. This shows that no damage could have been caused in Ecuador.

180
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results, rows

10, 13 and 50.

Appendix page 149Witness 23:

Witness 23 states that she lives in the town of Puerto Escondido, a com munity of about

twenty houses, on the banks of the San Miguel River. She claims that the first time the
sprayings came was in 2002 and she was working outside her house. “They were flying

over Colombian territory up to the riverbank.” Then she describe s the alleged effects
caused by that incident. 181

As shown in Figure 5, in 2002 the spray events closest to Puerto Escondido were at

distances of between nearly and over 3 kilometres from the Puerto Escondido location or
between 2.5 and 3 kilometres from the Ecuadorian bank on the border river; yet the witness

claims that “[a] few minutes [after the spraying], all of a sudden, [he] could not breathe.
[His] throat closed up and [he] started choking, like when one breathes in dust.”

The falsehood is evident. There is definitely no scientific evidence that the spray mixture

cause this effect, much less at the distances involved. Even more, as shown in Figure 2-
10,182 personnel from different Colombian entities have witnessed the aerial spraying from

the ground, at a very close distance from the spraying and none of these effects have never
been reported.

But the distances involved also render impossible the alleged effects on plants, crops and

animals. Hewitt confirmed this conclusion after modeling these events and estimating
deposition values of 1.2 g/ha, 1.1 g/ha and 0.11 g/ha, respectively. 183 The level of concern

for amphibians, the most sensitive animal species according to Ecuador, is 1,368 g/ha; and
between 36 and 1,958 g/ha for various crops. 184 This shows that no damage could have

been caused in Ecuador.

The falsity is even more evident in thewitness’sallegations:

• Alleged impacts on human health:
− Serious skin irritation/itching and bumps. “A couple of days later, my skin also

became irritated, bumps appeared and they itched intensely.”

• Loss of crops, and plants turning yellow. “A week or two after I saw the planes
spraying, the maize and rice were affected, drying up. The leaves of the plants had

181
182 EM, Vol. IV, Annex 209.
183 CR, Vol. I, Chap. 2, p. 112.
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
184 13 and 50.
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 150 yellow spots, and then they turned completely yellow, fell off and, finally, the plants
dried up completely.”

• Alleged effects on soil and loss of productivity. “On my farm, I had a hectare of
maize and a half hectare of plantain which either died or stopped producing. Three

months later, we tried to sow the plants a gain, but the crops did not give us good
products”.

• Alleged impacts on animals. “After two days, the chickens, who had nothing to eat
but the affected plants, started to make a noise as if they were choking and they
died. One of my pigs that was pregnant also died the following day.”

Appendix page 151Appendix page 152 Witness 26

(EM, Vol. IV, Annex 210)

Appendix page 153 0°24'N 0°22'N 0°20'N

km
3

2

77°8'W 77°8'W

Scale: 1:60,000
l
u theSrpivrthaewInatknal boundary
i 1
M
a SpraCyoneordeesverriv
o Projection: UTM zone 17; Datum: WGS-84
R

0

Santa Rosa de los Cofanes

77°10'W 77°10'W

COFÁN RESERVE
ECUADOR

Disba(kctototteeTocrler2ri)er: 393 m

77°12'W 77°12'W
PERU

COLOMBIA
COLOMBIA

ECUADOR
PACIFIC

0°24'N 0°22'N 0°20'N Figure 13. Cofán Bermejo Reserve, Spray Lines in 2002 (Witnesses 26-27-29-31)

77°14'W 77°14'W

Appendix page 154 Cofán Bermejo Reserve, 2002 (Witness 26)

Metadata of the closest spray lines

METADATO SEGUNDA LINEA DE ASPERSION MAS CERCANA COFAN BERMEJO 2002 (Witnesses 26-27-29-31)
OBJECTISEG FILE_NAMEMISSIOSNIDELINESTART_TIMLEATITUDELONGITUDAELTITUDDFLET_LENTTE SPEED VOLUMAEREA LOG LENGHONTSHWATAHIRCRATOPA_C_CROP

15196 358 I262A1BC.B99287-3Right64 12:12:06:600.3758077-177.20217691039220,9 3,700 142,200 2,600 0 I262A1B6C,363 0209 T-65 CocaT-65_Coca
PARAMETER 2S6 SEPTEMBER 2002 12:12 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
423 362 61

Attribute Table 22

COFÁN BERMEJO RESERVE:

Distance of the closest spray line to the Ecuadorian bank on the border river: 393 metres.

185
Hewitt modeled this event and estimated a deposition value of 0.700 g/ha. The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
186
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage

could have been caused in Ecuador.

185 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row

18.
186 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 155 0°24'N 0°22'N 0°20'N

3m

2

Scale: 1:60,000
Santa Rosa de los Cofanes theSrpivrthaewInatknal boundary
1

Spray linerdeesrveriv
Projection: UTM zone 17; Datum: WGS-84

0

77°10'W 77°10'W

l
u
i
Mn
S
í
R

COFÁN RESERVE
Disba(nctotottteeTordler2rienr: 439 m ECUADOR

77°12'W 77°12'W

PERU
COLOMBIA

Disbta(kctototteeTEorledrri)enr: 340 m

COLOMBIA

77°14'W 77°14'W

ECUADOR

PACIFIC

0°24'N 0°22'N 0°20'N Figure 15. Cofán Bermejo Reserve, Spray Lines in 2004 (Witnesses 26-27-29-31)

Appendix page 156 Cofan Bermejo, 2004 (Witness 26)

Metadata of the closest spray lines

ATRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO COFAN BERMEJO IN 2004 (Witnesses 26-27-29-31)
OBJECTIDSEG FILE_NAME MISSIONSIDELINESTART_TIMLEATITUDELONGITUDAELTIEOPFLT_TIMFELT_LENGOTE SPEED VOLUMAEREALENGTHMONTHSWATHAIRCRAFATC_CROPCROP

947 4399 L244A1AC.B01287-1 Right 518:27:20:300.3756192-747.2058665613224,777 1116,1 4,400 161,900 2,5 2,562341,92 0412 50 T-65 T-65_CocCaoca
PARAMETERS24 December 2004 08:27 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltitudGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
403 380 23

Attribute Table 23

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO COFAN BERMEJO IN 2004 (Witnesses 26-27-29-31)
OBJECTIDSEG FILE_NAME MISSIONSIDELINESTART_TIMLEATITUDELONGITUDAELTEOPFLT_TIMFELT_LENGTOTE SPEED VOLUMAEREALENGTHMONTHSWATHAIRCRAFATC_CROPCROP
817 4264 L244A1AC.B01287-1 Right 157:55:48:700.3658190-757.22639110,8092,1 484,9 53 157,400 2,2 1,113148,0780412 50 T-65 T-65_CocCaoca

PARAMETERS 24 DECEMBER 2004 07:55 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltitudGround AltitudeSpray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
429 396 33

Attribute Table 24

COFÁN BERMEJO RESERVE:

Distance of the closest spray lines to the Ecuadorian bank on the border river: 340 and 439

metres.

Hewitt modeled these events and estimated deposition values of 0.506 g/ha and 0.0833
187
g/ha, respectively. The level of concern for amphibians, the most sensitive animal

species according to Ecuador, is 1,368 g/ha; an d between 36 and 1,958 g/ha for various

188
crops. This shows that no damage could have been caused in Ecuador.

187
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , rows
28 and 54.
188
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 157 0°24'N 0°22'N 0°20'N

km
77°8'W 3 77°8'W

el
ig
M
a 2
S
íR

Scale: 1:60,000

theSrpivrthaewIniatknal boundary
1

Spray linerdeesverriv
Santa Rosa de los Cofanes Projection: UTM zone 17; Datum: WGS-84

0

77°10'W 77°10'W

Disbta(kctototteeTEorledrri)enr: 932 m

COFÁN RESERVE
ECUADOR

77°12'W 77°12'W

PERU
COLOMBIA

COLOMBIA

77°14'W l 77°14'W
u
i
n
aS ECUADOR
í
R PACIFIC

0°24'N 0°22'N 0°20'N Figure 18. Cofán Bermejo Reserve, Spray Lines in 2007 (Witnesses 26-27-29-31)

Appendix page 158 Cofan Bermejo, 2007 (Witness 26)

Metadata of the closest spray lines

METADATO LINEA DE ASPERSION MAS CERCANA COFAN BERMEJO 2007 (Witnesses 26-27-29-31)
FID SEG FILE_NAME MISSISIDELINESTART_TIMLEATITUDELONGITUDAELTITUDDEOPFLT_TIMFELT_SPEED VOLUMAEREALENGTHMONSWATHAIRCRAFTAC_CROPGROUP
70 4257 A147&VAC.B99287-3 - -21:17:48:909.3805094-797.2041,100 0,76 64,023 4195,700188,400 5,900 0,33264,0485070AT802 AT802_CocLaobo
PARAMETERS14 JANUARY 2007 11:17 METERS MILES/HOUR

ADDED ATTRIBUTES
Ground Altitude Spray Line
overMSL(Metres) Altitude over
367 49

Attribute Table 25

COFÁN BERMEJO RESERVE:

Distance of the closest spray line to the Ecuadorian bank on the border river: 932 metres.

189
Hewitt modeled this event and estimated a deposition value of 0.6199 g/ha. The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
190
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage

could have been caused in Ecuador.

189
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row
23.
190
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 159Witness 26:

The witness states that she lives in the Avie Community, also known as Tayusu Kankhe ,

which is located next to the San Miguel River, in the Cofán- Bermejo Ecological Reserve,
near the border of the Colombian regions of Putumayo and Nariño. She claims that “ [t]he

first time [they] saw the sprayings [they] were very frightened. The planes brought smoke
191
with them and they passed over [her] house.”

Witnesses 26, 27, 29 and 31 all live in the Cofán Reserve and in Avie Community, also
known as Sukie Kankhe. 192 In order to determine the area where the sprayings and their

allegedly adverse effects were witnessed, Colombia has taken the following into account:

Witnesses 26, 27, 29 and 31 claim that their communities, Avie and Sukie Kankhe, are
located within the Cofán- Bermejo indigenous reserve, next to the San Miguel River; 193
194
Witness 31 alleges that both communities are in the same area; Witness 29 adds that his
195
family has lived on the mountain; Witness 29 also states to have attended school in the
neighbouring Colombian location of Santa Rosa de los Cofán es, 196 while Witness 31 states

that his two -house, nine -person community is located at an hour -and-a-half’s walking
distance from the Colombian location of San José .197 The area that meets all those

conditions on the banks of the San Miguel river, is the north- eastern part of the Cofán -

Bermejo reserve abutting the border with Colombia. That area is the same as that for which
lines are depicted in the vicinity of the Cofán reserve, in Figure 2.11 in the Reply.

Witness 26 alludes to no specific year or even number of allegedly witnessed sprayings.

However, there were only four possibly relevant events between 2000 and 2007, which are
shown in Figures 13, 15 and 18. 198However, all these events were sprayings on Colombian

territory, at distance s of between 340 and 932 metres, with only a single event in 2002

191
EM, Vol. IV, Annex 210.
192 See EM, Vol. IV, Annexes 210, 211, 213 and 215.
193 “I live in the AvieCommunity […] located next to the San Miguel River, in the Cofán -Bermejo
Ecological Reserve.” (EM, Vol. IV, Annex 210); “I live in the Avie community, which is located in the

Cofán-Bermejo Ecological Reserve, on the banks of the San Miguel River.” (EM, Vol. IV, Annex 211); “[…]
community of Avie, on the Ecuadorian side of the San Miguel River, where I lived with my parents.” (EM,
Vol. IV, Annex 213); “[…] Avie and Sukie Kankhe, the latter one is my community and is the one closest to
the San Miguel River.” (EM, Vol. IV, Annex 215).
194 “On the border with Colombia, there is an area in which there are four Cofán communities: Alto

195mejo, Chandia Na’en, Avie and Sukie Kankhe” (EM, Vol. IV, Annex 215).
“My father is never going to leave the mountain because we, the Cofán, live with the mountain”
(EM, Vol. IV, Annex 213).
196 “I was studying in the school in Santa Rosa de los Cofánes, in Colombian territory, because it was
the closest school to the Cofán community of Avie ” (EM, Vol. IV, Annex 213).
197 “There is another way out toward a small village on the Colombian side called San José; to get there,

198have to walk for an hour and ahalf.” (EM, Vol. IV, Annex 215).
See also CR, Vol. II, Annex 18: Anti -Narcotics Directorate of the Colombian National Police
(DIRAN), Eradication of Illicit Crops Division, Analysis of Certain Spraying Operational Aspects, October
2011, pp. 82-83, 86, 89 and 90, Fig. 11, 12, 14, 16 and 17.

Appendix page 160being at a distance of 393 metres. Yet the witness implies that the planes sprayed over her

house. The falsehood is evident.

The alleged effects of crops, plants and animals could not have occurred either, even
assuming that the wind was blowing towards Ecuador. 199 Hewitt modeled these events and

estimated downwind deposition values of 0.700 g/ha, 0.506 g/ha, 0.0833 g/ha and 0.6199
g/ha, respectively. 200 The level of concern for amphibians, the most sensitive animal

species according to Ecuador, is 1,368 g/ha; an d between 36 and 1,958 g/ha for various
crops. 201

This was also confirmed by Dr Evans. After conducting an analysis on satellite images to

identify and quantify vegetation changes that occurred within the Cofán area, he concluded
that no evidence of defoliation caused by aerial herbicide spraying during August and
202
September of 2002 could be found.

But the falsehood does not end there. T his witness also follows the usual structure in his
statement, evidencing its lack of spontaneity.

• Alleged impacts on human health:

− Eye burning/Chiefly on children, headaches, vomi t, fever and diarrhea. “My
health is affected, I feel sick, I have headaches.”

• Loss of crops, and plants turning yellow. “The crops were also affected,”

• Effects on soil and subsequent loss of productivity measured in quintals. “The
plants no longer produce as they used to. When I harvested the yucca plant to cook

meals, I realized that the yucca was damaged; it is no longer the same. The yucca is
normally white inside, but after the sprayings, the yucca seemed as if it were stained

inside”.
• He/she had never experienced anything similar before. “[A]fter the sprayings, the

yucca seemed as if it were stained inside, before the sprayings this was not seen.”
• Final dramatic statements. “But this displacement has affected our traditions […]

after the families leave the communities, the young people turn away from the
traditions. They no longer marry members of the Cofán nationality and they do not

199 See CR, Vol. I, Chap. 2, sec. C, paras. 2.221 -2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
200 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
18, 28, 54 and 23, respectively.
201 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

202. III, Annex 131-B, p. 330.
See CR, Vol. II, Annex 6: 3.39-3.51, pp. 39-49; “Consequently, in the Cofán study area, no evidence
of defoliation caused by aerial herbicide spraying during August and September of 2002 could be found.”
Ibid., para. 3.69, p. 49.

Appendix page 161return to the communities, they remain in the village. This separation has been very
difficult for all of us”.

Appendix page 162 Witness 27

(EM, Vol. IV, Annex 211)

Appendix page 163 0°24'N 0°22'N 0°20'N

km
3

2

77°8'W 77°8'W

Scale: 1:60,000
l
u theSrpivrthaewInatknal boundary
i 1
M
a SpraCyoneordeesverriv
o Projection: UTM zone 17; Datum: WGS-84
R

0

Santa Rosa de los Cofanes

77°10'W 77°10'W

COFÁN RESERVE
ECUADOR

Disba(kctototteeTocrler2ri)er: 393 m

77°12'W 77°12'W
PERU

COLOMBIA
COLOMBIA

ECUADOR
PACIFIC

0°24'N 0°22'N 0°20'N Figure 13. Cofán Bermejo Reserve, Spray Lines in 2002 (Witnesses 26-27-29-31)

77°14'W 77°14'W

Appendix page 164 Cofán Bermejo Reserve, 2002 (Witness 27)

Metadata of the closest spray lines

METADATO SEGUNDA LINEA DE ASPERSION MAS CERCANA COFAN BERMEJO 2002 (Witnesses 26-27-29-31)
OBJECTIDSEG FILE_NAME MISSISIDELINESTART_TIMLEATITUDE LONGITUDAELTITUDDEOPFLT_TIMTHTE_SPEED VOLUMAEREA LOG LENGTHONTSHWATAIRCRAFTROPA_C_CROP
15196 358 I262A1BC.B99287-3Right64 12:12:06:600.37580771-77.202176901392 0,20,903,700 142,200 2,600 0 I262A1B6C,363 0509 T-65 CocaT-65_Coca

PARAMETER2S6 SEPTEMBER 2002 12:12 FEET MILES/HOUR
ADDED ATTRIBUTES

Spray Line Altitude Ground Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
423 362 61

Attribute Table 22

COFÁN BERMEJO RESERVE:

Distance of the closest spray line to the Ecuadorian bank on the border river: 393 metres.

203
Hewitt modeled this event and estimated a deposition value of 0.700 g/ha. The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368

g/ha; and between 36 and 1,958 g/ha for various crops. 204 This shows that no damage

could have been caused in Ecuador.

203
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row
18.
204
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 165 0°24'N 0°22'N 0°20'N

3m

2

Scale: 1:60,000
Santa Rosa de los Cofanes theSrpivrthaewInatknal boundary
1

Spray linerdeesrveriv
Projection: UTM zone 17; Datum: WGS-84

0

77°10'W 77°10'W

l
u
i
Mn
S
í
R

COFÁN RESERVE
Disba(nctotottteeTordler2rienr: 439 m ECUADOR

77°12'W 77°12'W

PERU
COLOMBIA

Disbta(kctototteeTEorledrri)enr: 340 m

COLOMBIA

77°14'W 77°14'W

ECUADOR

PACIFIC

0°24'N 0°22'N 0°20'N Figure 15. Cofán Bermejo Reserve, Spray Lines in 2004 (Witnesses 26-27-29-31)

Appendix page 166 Cofan Bermejo, 2004 (Witness 27)

Metadata of the closest spray lines

ATRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO COFAN BERMEJO IN 2004 (Witnesses 26-27-29-31)

OBJECTIDSEG FILE_NAME MISSIONSIDELINESTART_TIMLEATITUDELONGITUDAELTIEOPFLT_TIMFELT_LENGTOTE SPEED VOLUMAEREALENGTHMONTHSWATHAIRCRAFATC_CROPCROP
947 4399 L244A1AC.B01287-1 Right 518:27:20:300.3756192-747.205866561322 4,77 1116,1 4,400 161,900 2,5 2,562341,92 0412 50 T-65 T-65_CocCaoca

PARAMETERS24 December 2004 08:27 FEET MILES/HOUR
ADDED ATTRIBUTES
Spray Line AltitudGround Altitude Spray Line Altitude over

over MSL(Metres) over MSL(Metres) Ground Level (Metres)
403 380 23

Attribute Table 23

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO COFAN BERMEJO IN 2004 (Witnesses 26-27-29-31)

OBJECTIDSEG FILE_NAME MISSIONSIDELINESTART_TIMLEATITUDELONGITUDAELTITUDDEOPFLT_TIMFELT_HTEGTOSPEED VOLUMAEREALENGTHMONTH SWATHAIRCRAFATC_CROPCROP
817 4264 L244A1AC.B01287-1 Right 157:55:48:700.3658190-757.22639110,8092,1 484,9 53 157,400 2,2 1,113148,0780412 50 T-65 T-65_CocCaoca

PARAMETERS 24 DECEMBER 2004 07:55 FEET MILES/HOUR
ADDED ATTRIBUTES

Spray Line AltitudGround AltitudeSpray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
429 396 33

Attribute Table 24

COFÁN BERMEJO RESERVE:

Distance of the closest spray line to the Ecuadorian bank on the border river: 340 and 439

metres.

205
Hewitt modeled these events and estimated a deposition values of 0.506 and 0.0833 g/ha.

The level of concern for amphibians, the most sensitive animal species according to
206
Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. This shows that

no damage could have been caused in Ecuador.

205
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , rows
28 and 54.
206
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 167 0°24'N 0°22'N 0°20'N

km
77°8'W 3 77°8'W

el
ig
M
a 2
S
íR

Scale: 1:60,000

theSrpivrthaewIniatknal boundary
1

Spray linerdeesverriv
Santa Rosa de los Cofanes Projection: UTM zone 17; Datum: WGS-84

0

77°10'W 77°10'W

Disbta(kctototteeTEorledrri)enr: 932 m

COFÁN RESERVE
ECUADOR

77°12'W 77°12'W

PERU
COLOMBIA

COLOMBIA

77°14'W l 77°14'W
u
i
n
aS ECUADOR
í
R PACIFIC

0°24'N 0°22'N 0°20'N Figure 18. Cofán Bermejo Reserve, Spray Lines in 2007 (Witnesses 26-27-29-31)

Appendix page 168 Cofan Bermejo, 2007 (Witness 27)

Metadata of the closest spray lines

METADATO LINEA DE ASPERSION MAS CERCANA COFAN BERMEJO 2007 (Witnesses 26-27-29-31)
FID SEG FILE_NAME MISSIONSIDELINESTART_TIMLEATITUDELONGITUDAELTITUDEDOPFLT_TIMFELTSPEED VOLUMAEREALENGTHMONTHSWATHAIRCRAFTAC_CROPGROUP
70 4257 A147&VAC.B99287-3 - - 21:17:48:909.3805094-977.2041,100 0,76 64,023 4195,700 188,45,900 0,33264,048 0785 AT802 AT802_CocLaobo
PARAMETERS14 JANUARY 2007 11:17 METERS MILES/HOUR

ADDED ATTRIBUTES
Ground Altitude Spray Line
over MSL (Metres) Altitude over
367 49

Attribute Table 25

COFÁN BERMEJO RESERVE:

Distance of the closest spray line to the Ecuadorian bank on the border river: 932 metres.

207
Hewitt modeled this event and estimated a deposition value of 0.6199 g/ha. The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368

g/ha; and between 36 and 1,958 g/ha for various crops. 208 This shows that no damage

could have been caused in Ecuador.

207 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row

23.
208 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 169Witness 27:

The witness states that he lives “in the Avie community, which is located in the Cofán -
Bermejo Ecological Reserve, on the banks of the San Miguel River ”, just like Witness 26.

He claims to remember the first spraying: “We were on the banks of the river, and we saw
209
the planes go by and helicopters escorting them.” The witness alludes to no specific year
or even number of allegedly witnessed sprayings . However, there were only four possibly

relevant events, in the years 2002, 2004 and 2007 which, as shown above in Figures 13, 15
and 18 are the sprayings on Colombian territory that are closest to the witness’s location, 198

at distances of between 340 and 932 metres, with only a single event in 2002 being at a
210
distance of 393 metres.

Hewitt modeled these events and estimated downwind deposition values of 0.700 g/ha,
211
0.506 g/ha, 0.0833 g/ha and 0.6199 g/ha, respectively. T he level of concern for
amphibians, the mos t sensitive animal species according to Ecuador, is 1,368 g/ha; and
212
between 36 and 1,958 g/ha for various crops. Yet, the witness is particularly dramatic
and describes an apocalyptic scene. Thefalsehood is evident.

This was further corroborated by Dr Evans, who conducted an analysis on satellite images
to identify and quantify vegetation changes that occurred within the Cofán area. He

concluded that no evidence of defoliation caused by aerial herbicide spraying during
August and September of 2002 could be found in the study area. 213

Moreover, the pattern is also evident in the following allegations:

• Alleged impacts on human health:

209 EM, Vol. IV, Annex 211.
210 In order to determine the area where the sprayings and their allegedly adverse effects were
witnessed, Colombia has taken the following into account: Witnesses 26, 27, 29 and 31 claim that their

communities, Avie and Sukie Kankhe, are located within the Cofán -Bermejo indigenous reserve, next to the
San Miguel River (see footnote 169) ; Witness 31 alleges that both communities are in the sa me area (see
footnote 170); Witness 29 adds that his family has lived on the mountain (see footnote 171); Witness 29 also
states to have attended school in the neighbouring Colombian location of Santa Rosa de los Cofán es (see
footnote 172), while Witness 31 states that his two-house, nine-person community is located at an hour-and-a-
half’s walking distance from the Colombian location of San José (see footnote 173). The area that meets all

those conditions on the banks of the San Miguel river, is the north-eastern part of the Cofán-Bermejo reserve
abutting the border with Colombia. That area is the same as that for which lines are depicted in the vicinity of
the Cofán reserve, in Figure 2.11 in the Reply.
211 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
18, 28, 54 and 23, respectively.
212 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

213. III, Annex 131-B, p. 330.
See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by Dr Barry M. Evans, Dec. 2011,
3.39-3.51, pp. 39-49; “Consequently, in the Cofán study area, no evidence of defoliation caused by aerial
herbicide spraying during August and September of 2002 could be found ” Ibid., para. 3.69, p. 49.

Appendix page 170 − Serious skin irritation/itching and bumps . “After the spraying, we in the

community were afflicted with a snot- like thing in our noses […] and rashes on
our arms.”
− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “After

the spraying , we in the community were afflicted with […] sore throats,
headaches […]”. “Since the sprayings, I have had to go to the Hea lth Center in

General Farfán to be treated for throat inflammation caused by drinking water
contaminated during the sprayings.”
• Loss of crops, and plants turning yellow. “Also, we used to plant plantain, yucca

and maize for food. During the period after t he sprayings, the plants turned yellow
and the yucca was stained in the inside.” “The medicinal plants have also been lost.”

• Effects on soil and subsequent loss of productivity measured in quintals. “After the
sprayings, I noticed a change in the forest. T he ceibos [tropical trees] that grow by
the riverbank do not grow to be very large. The big trees in the jungle have dried

up.” “The plantain used to yield four harvests per year; the yucca was harvested at
six months and a year. Now, it no longer grows. O ur crops do not produce as much

as they used to. The yucca is stained on the inside and grows small.”
• Alleged impacts on animals. “The life of the Cofán used to be to hunt or fish when
he needed food. We used to hunt deer. To hunt the tapir, seven families would go,

because it has a lot of meat. We used to hunt sahino boars, monkeys and dusky -
legged guans (birds). Now, there are no animals. The animals that used to live on

the banks of the river, such as the guanta, no longer come out, their prints are no
longer seen, they have hidden farther into the jungle. The tapir no longer comes to
the river. The guanta does not come out at night either nor the guatusa that eats the

guabas. It is more difficult to get food in the jungle now.” “The few chickens that
we had came down with a disease and several of them died.”

• He/she had never experienced anything similar before. “ It was the first time that we
had seen something like it and it made us very scared”.
• Final dramatic statements. “We have nowhere to go, our land is everything that we

have, the reserve has been our home forever.” “Among our traditions, one of the
most important is the role of the shaman, known as “curaga” [..]. Now, the curaga

no longer has good visions and has difficulties in contacting the animals to facilitate
the hunting. He says that the sprayings have affected the air and the yagé does not
produce the same effects as before.” “Before, we only used healing plants based on

our traditions. Since the sprayings, I have had to go to the Health Cent er in General
Farfán to be treated”.

Appendix page 171Appendix page 172 Witness 28

(EM, Vol. IV, Annex 212)

Appendix page 173 0°16'N 0°14'N 0°12'N

km
3

2

Scale: 1:60,000
theSrpi1rthaewInatknal boundary

76°26'W BordNote:ver 76°26'W
SpraIyinrenational boundary

Projection: UTM zone 18; Datum: WGS-84

0

76°28'W COLOMBIA e 76°28'W
i
M
a ECUADOR
S
í
R

DisDtisaenctrdoetreTarblr2066a7n1b0nk on

PERU

76°30'W 76°30'W

COLOMBIA

Yana Amarum

ECUADOR

PACIFIC
Figure 19. Yana Amarum, Spray Lines in 2002 (Witness 28)
0°16'N 0°14'N 0°12'N

Appendix page 174 Yana Amarum, 2002 (Witness 28)

Metadata of the closest spray lines

METADATO LINEA DE ASPERSION MAS CERCANA YANA AMARUM 2002(Witness 28)
OBJECTISDEGFILE_NAMEMISSIOSNIDELINESTARLAETITUDELONGITDLETITDEPFLT_TFLET_LENGOTTHE SPEEDVOAREALOG LENGTMHONTSWATAHIRCRACFRTOPA_C_CROP
1638 51 J032YSCC.B99303R-t6318:06:45:900.257389-7706.5005011080870,118,6 1,800202,2002,700 0 J0326,1630210 85 OV-10CocaOV-10_Coca

PARAMETE0 R3SDE OCTUBRE 2002 13:06 FEET MILES/HOUR
ADDED ATTRIBUTES
Spray Line AltitudGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
306 266 40

Attribute Table 26

YANA AMARUM:

Distance of the closest spray line to Yana Amarum: 2,710 metres, nearly three kilometres.

Distance to the Ecuadorian bank on the border river: 2,406 metres, nearly two and a half

kilometres.

Hewitt modeled this event and estimated a deposition value of 0.111 g/ha. 214 The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368

g/ha; and between 36 and 1,958 g/ha for va rious crops. 215 This shows that no damage

could have been caused in Ecuador.

214
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row
48
215
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 175Witness 28:

The witness states that he lives in the Kichwa community of Yana Amarum , which is

located on the banks of the San Miguel River, bordering Colombia, in the province of
Sucumbíos. He adds that, “[w]hen I saw the planes spraying for the first time, I was

working on my farm. We did not know that they were sprayings; we had seen helicopters
before but we had never seen those white planes or the white cloud that they broug ht. They

came from Colombia, up to the San Miguel River; they would cross to the Ecuadorian side

and turn around. I saw the smoke coming out of the planes and reaching our
community.” 216

The only spraying on Colombian territory between 2000 and 2007 in t he relevant area, was

in 2002, i.e., the event shown in Figure 19, at a distance of over 2.4 kilometres from the
Ecuadorian bank on the border river, and yet the witness claims that he saw the smoke

coming out of the planes and reaching his community. The falsehood is evident.

Moreover, even the alleged effects on crops, plants and animals could not have occurred.

Dr Hewitt modeled the even shown in Figure 19 and estimated a downwind deposition
value of 0.111 g/ha at 2.4 kilometres. 217 The level of concern for amphibians, the most

sensitive animal species according to Ecuador, is 1,368 g/ha; and between 36 and 1,958
g/ha for various crops. 218 Therefore, even if the wind was blowing toward Ecuador, 219 no

damage could have been caused.

This was also confirmed b y Dr Evans, who conducted an analysis on satellite images to

identify and quantify vegetation changes that occurred within the Cofán area. He concluded
that no evidence of defoliation caused by aerial herbicide spraying during August and
220
September of 2002 could be found in the study area.

Finally, the lack of spontaneity is also evident in this statement:

• Alleged impacts on human health:

216 EM, Vol. IV, Annex 212.
217 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , row

218
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
219. III, Annex 131-B, p. 330.
See CR, Vol. I, Chap. 2, sec. C, paras. 2.221-2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
220 See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by Dr Barry M. Evans, Dec. 2011,
paras. 3.39-3.51, pp. 39- 49; “Consequently, in the Cofán study area, no evidence of defoliation caused by
aerial herbicide spraying during August and September of 2002 could be found.” Ibid. , para. 3.69, p. 49.

Appendix page 176 − Serious skin irritation/itching and bumps. “ A few days after the planes flew by,

my wife, who had been outside working during the sprayings, became sick with
bumps on her legs, which turned into white spots that she still has to this day.”
− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea.

• Loss of crops, and plants turning yellow. “About two days aft er that spraying, the
plants started to wither; they dried up day after day, as if they had no water.”

• Effects on soil and subsequent loss of productivity measured in quintals. “Before we
used to plant the stem of the yucca and it would sprout; but after the sprayings, we
would plant it and the plant would not grow, the stem seemed to be poisoned, it

would dry up in the ground.” “The same thing happened with the maize.” “I have
always earned a living by selling the crops that we grew and the land produced, but

now the land no longer produces as it used to”.
• Alleged impacts on animals. “ Since we no longer had any crops to sell, we tried to
sell our chickens and pigs, but people would not buy them because they looked sick.

All the smaller pigs died. The effects were also observed in some of the wildlife.”
• He/she had never experienced anything similar before. “We did not understand why

this was happening – we had never seen anything like it before”. “Following the
sprayings, those who lived off hunting no longe r found the animals they used to
hunt, such as the cerillo (a mountain pig), monkeys, armadillos, and guantas. I used

to fish everyday; and, one day after the first spraying, I went fishing, as always, but
what I found were dead fish in the estuary, floati ng in the water whitish and

swollen. I saw that the fish were no longer safe to eat and I returned home empty
handed.”
• Dramatic statements. “Before the sprayings, life was normal and happy.

[…]Everyone had enough to eat and to make a bit of money. But a fe w years ago,
the first sprayings came.” “The effect on the yucca was particularly difficult for us;

the yucca is our central food, which is eaten everyday. Furthermore, it is used to
make chicha, a traditional beverage that the Kichwa people have always dr unk.”
“Finally, in 2004, I had to leave the community to work in the city of Puerto Nuevo,

because after the sprayings, there was nothing to harvest in Yana Amarum , and life
had become too hard.” “[I]n my community we only live off the crops, that is why

the sprayings affect us so much in the country. I was not the only one to leave. Of
eighteen families, four left in search of a better life, farther from the border and their
problems”.

Appendix page 177Appendix page 178 Witness 29

(EM, Vol. IV, Annex 213)

Appendix page 179 0°24'N 0°22'N 0°20'N

km
3

2

77°8'W 77°8'W

Scale: 1:60,000
l
u theSrpivrthaewInatknal boundary
i 1
M
a SpraCyoneordeesverriv
o Projection: UTM zone 17; Datum: WGS-84
R

0

Santa Rosa de los Cofanes

77°10'W 77°10'W

COFÁN RESERVE
ECUADOR

Disba(kctototteeTocrler2ri)er: 393 m

77°12'W 77°12'W
PERU

COLOMBIA
COLOMBIA

ECUADOR
PACIFIC

0°24'N 0°22'N 0°20'N Figure 13. Cofán Bermejo Reserve, Spray Lines in 2002 (Witnesses 26-27-29-31)

77°14'W 77°14'W

Appendix page 180 Cofán Bermejo Reserve, 2002 (Witness 29)

Metadata of the closest spray lines

METADATO SEGUNDA LINEA DE ASPERSION MAS CERCANA COFAN BERMEJO 2002(Witnesses 26-27-29-31)

OBJECTISEG FILE_NAMEMISSIOSNIDELINESTART_TIMLEATITUDELONGITUDAELTITUDDFLET_LENTTE SPEED VOLUMAEREA LOG LENGTHONTSHWATHIRCRACTOPA_C_CROP
15196 358 I262A1BC.B99287-3Right64 12:12:06:600.3758077-177.202176910392 20,9 3,700 142,200 2,600 0 I262A1B6C,363 0209 T-65 CocaT-65_Coca
PARAMETER 26 SEPTEMBER 2002 12:12 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
423 362 61

Attribute Table 22

COFÁN BERMEJO RESERVE:

Distance of the closest spray line to the Ecuadorian bank on the border river: 393 metres.

221
Hewitt modeled this event and estimated a deposition value of 0.700 g/ha. The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
222
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage

could have been caused in Ecuador.

221 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Result s, row

18.
222 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 181 0°24'N 0°22'N 0°20'N

3m

2

Scale: 1:60,000
Santa Rosa de los Cofanes theSrpivrthaewInatknal boundary
1

Spray linerdeesrveriv
Projection: UTM zone 17; Datum: WGS-84

0

77°10'W 77°10'W

l
u
i
Mn
S
í
R

COFÁN RESERVE
Disba(nctotottteeTordler2rienr: 439 m ECUADOR

77°12'W 77°12'W

PERU
COLOMBIA

Disbta(kctototteeTEorledrri)enr: 340 m

COLOMBIA

77°14'W 77°14'W

ECUADOR

PACIFIC

0°24'N 0°22'N 0°20'N Figure 15. Cofán Bermejo Reserve, Spray Lines in 2004 (Witnesses 26-27-29-31)

Appendix page 182 Cofan Bermejo, 2004 (Witness 29)

Metadata of the closest spray lines

ATRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO COFAN BERMEJO IN 2004 (Witnesses 26-27-29-31)
OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TLAETITUDLEONGITAELTITUDDEOPFLT_TIMFELT_LENGTOHSPEED VOLUMAEREALENGTMH ONTSHWATAIRCRAFATC_CROCPROP
947 4399 L244A1AC.B0287-1Right51 8:27:20:300.375619-2747.205866516322 0,771116,1 4,400 161,900 2,5 2,562341,920412 50 T-65 T-65_CoCcaoca

PARAMETERS24 December 2004 08:27 FEET MILES/HOUR
ADDED ATTRIBUTES
Spray Line Altitude Ground Altitude Spray Line Altitude over

overMSL(Metres) overMSL(Metres) Ground Level (Metres)
403 380 23

Attribute Table 23

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO COFAN BERMEJO IN 2004 (Witnesses 26-27-29-31)

OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TLAETITUDLEONGITALETITUDDEOPFLT_TIMFELT_LENGTOHSPEED VOLUMAEREALENGTHONTSHWATHAIRCRAFATC_CROCPROP
817 4264 L244A1AC.B02187-1Right15 7:55:48:700.365819-0757.2263911182,1 0,484,9 53 157,400 2,2 1,113148,0780412 50 T-65 T-65_CoCcaoca
PARAMETERS 24 DECEMBER 2004 07:55 FEET MILES/HOUR

ADDED ATTRIBUTES

Spray Line AltituGround Altitudepray Line Altitude over
over MSL (Metres) over MSL (Metres)und Level (Metres)
429 396 33
Attribute Table 24

COFÁN BERMEJO RESERVE:

Distance of the closest spray line to the Ecuadorian bank on the border river: 340 and 4 39

metres.

Hewitt modeled these events and estimated deposition values of 0.506 g/ha and 0.0833
223
g/ha, respectively. The level of concern for amphibians, the most sensitive animal

species according to Ecuador, is 1,368 g/ha; an d between 36 and 1,958 g/ha for various
224
crops. This shows that no damage could have been caused in Ecuador.

223
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , rows
28 and 54.
224
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 183 0°24'N 0°22'N 0°20'N

km
77°8'W 3 77°8'W

el
ig
M
a 2
S
íR

Scale: 1:60,000

theSrpivrthaewIniatknal boundary
1

Spray linerdeesverriv
Santa Rosa de los Cofanes Projection: UTM zone 17; Datum: WGS-84

0

77°10'W 77°10'W

Disbta(kctototteeTEorledrri)enr: 932 m

COFÁN RESERVE
ECUADOR

77°12'W 77°12'W

PERU
COLOMBIA

COLOMBIA

77°14'W l 77°14'W
u
i
n
aS ECUADOR
í
R PACIFIC

0°24'N 0°22'N 0°20'N Figure 18. Cofán Bermejo Reserve, Spray Lines in 2007 (Witnesses 26-27-29-31)

Appendix page 184 Cofan Bermejo, 2007 (Witness 29)

Metadata of the closest spray lines

METADATO LINEA DE ASPERSION MAS CERCANA COFAN BERMEJO 2007 (Witnesses 26-27-29-31)
FID SEG FILE_NAME MISSIONSIDELINESTART_TIMLEATITUDELONGITEOPFLT_TIMFELT_LENGTHOTE SPEED VOLUMAEREALENGTHMONTHSWATHAIRCRAFTAC_CROPGROUP
70 4257 A147&VAC.B99287-3 - - 21:17:48:909.3805094-797.2041,100 0,76 64,023 4195,700 188,400 5,900 0,33264,0488570AT802 AT802_CocLaobo

PARAMETERS14 JANUARY 2007 11:17 METERS MILES/HOUR

ADDED ATTRIBUTES
Ground Altitude Spray Line
overMSL(Metres) Altitude over
367 49
Attribute Table 25

COFÁN BERMEJO RESERVE:

Distance of the closest spray line to the Ecuadorian bank on the border river: 932 metres.

225
Hewitt modeled this event and estimated a deposition value of 0.6199 g/ha. The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
226
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage

could have been caused in Ecuador.

225 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row

23.
226 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 185Witness 29:

The witness states that he “was about ten years old when [he] experienced the first

spraying. At that time, [he] was studying in the school in Santa Rosa de los Cofánes, in
Colombian territory, because it was the closest school to the Cofán community of Avie, on

the Ecuadorian side of the San Miguel River, where [he] lived with [his] parents.” He also

indicates that he lives in the mountain: “My father is never going to leave the mountain
because we, the Cofán, live with the mountain.” Then he claimed: “When the first spraying

occurred, we were in school and we saw several planes come by”. Additionally, without
specifying any time-frame the witness stated that: “Once, when we were by the riverbank,

we saw the planes coming with their white smoke from the Colombian side, and they
turned around over Ecuador and returned.” 227

The witness alludes to no specific year or even number of allegedly witnessed sprayings.

However, the witness acknowledges to have resided in Quito for five years prior to August

2008, i.e., since 2003. Therefore, the only releva nt year would be 2002, for which the
event shown in Figure 13 is the spraying on Colombian territory that is closest to the
228
witness’s location, at a distance of 393 metres from the Ecuadorian bank on the bor der
river.210 Quite obviously, the river was not sprayed, nor was the Ecuadorian territory, as

shown by the spray data furnished to Ecuador by the United States’ Department of State.
The falsehood is evident.

Even though this time the witness does not claim that plants and crops turned yellow after

the spraying, and what he says about animals could not happen even under direct spraying,

in the interest of completeness Dr Hewitt modeled the event shown in Fig ure 13 and
estimated a downwind deposition value of 0.700 g/ha, 229at 393 metres from the application

site. The level of concern for amphibians, the most sensitive animal species according to
Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 230 Assuming wind
231
direction toward Ecuador, still no damage could have been caused.

Furthermore, Dr Evans confirmed this after conducting an analysis on satellite images to
identify and quantify vegetation changes that occurred within the Cofán area. He concluded

227 EM, Vol. IV, Annex 213.
228
See also CR, Vol. II, Annex 18: Anti -Narcotics Directorate of the Colombian National Police
(DIRAN), Eradication of Illicit Crops Division, Analysis of Certain Spraying Operational Aspects, October
2011, pp. 82 and 83, Fig. 11 and 12.
229 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results ,
row 18.
230 See CR, Vol. II, Annex 1: Hewitt Re port – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.
231 This is not usually the case. See See CR, Vol. I, Chap. 2, sec. C, paras. 2.221 -2.224; see also CR,

Vol. II, Annex 19: IDEAM Climate Characterization (2011).

Appendix page 186that no evidence of defoliation caused by aerial herbicide spraying during August and
232
September of 2002 could be found in the study area.

Finally, the way the witness follows the usual structure of all the statements is worth
noting:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “ Within a week of the sprayings, I
developed bumps […], which lasted some two or three weeks”.

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “Within
a week of t he sprayings, I developed […] a fever, headache, vomiting, and

dizziness, which lasted some two or three weeks.”
• Effects on soil and subsequent loss of productivity. “Before, they used to work with

the plantain, yucca and maize. Now, I see that they no longer work because the
plants do not produce.”
• Alleged impacts on animals. “There are not as many animals as there used to be in

the jungle near the river. I saw the change after spending so much time in Quito.”
• He/she had never experienced anything similar before. “I was treated with

medicinal plants, although their powers were not as they had been before.”
• Dramatic statements. “ The customs of my people have changed. Work has

changed.” “My grandfather no longer drinks yagé, as he used to, because he says
that the plant no longer works and the visions no longer come. It seems that his

power and curaga spirit have been weakened a lot because he can no longer
perform his rituals to know how to guide and protect the people”.

232 See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by Dr Barry M. Evans, Dec. 2011,
3.39-3.51, pp. 39-49; “Consequently, in the Cofán study area, no evidence of defoliation caused by aerial
herbicide spraying during August and September of 2002 could be found., para. 3.69, p. 49.

Appendix page 187Appendix page 188 Witness 30

(EM, Vol. IV, Annex 214)

Appendix page 189 1°22'N 1°20'N 1°18'N

3m

2.5

2

1.5

78°38'W Scale: 178°38'W
theSrp1vthaewInatknal boundary

Spray lineote:er

0.5 Projection: UTM zone 17; Datum: WGS-84

0

DisDisaencetdoutejTacbl62670an bank on
COLOMBIA

78°40'W 78°40'W

aj
Mat
í
R

PERU

78°42'W 78°42'W

COLOMBIA

ECUADOR

Mataje ECUADOR

PACIFIC

1°22'N 1°20'N 1°18'N Figure 20. Mataje, Spray Lines in 2000 (Witnesses 30-32-33-34-36-37-38-39)

Appendix page 190 Mataje, 2000 (Witness 30)

Metadata of the closest spray lines

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO MATAJE IN 2000 (Witnesses 30-32-33-34-36-37-38-39)
OBJECTIDLINE_ID TIME ALTITUDXETRACK MPH HEADINGS SPRAY_RATDEOPSV USEDDF STNID ASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFAT_C_CROCPROP
932 00283511:39:53.24497,500-249,73 151,46,4001 62,390 0,80010 9 0 -1 i140djac 296,1790009 50 Coca T-65 T-65_CocCaoca

PARAMETERS 11:39 FEET MILES/HOUR 14 September 2000
ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
151 97 54

Attribute Table 27

MATAJE:

Distance of the closest spray line to Mataje location: 5,660 metres, nearly six kilometres.

Distance to the Ecuadorian bank on the border river: 4,560 metres, over four and a half

kilometres.

Hewitt modeled this event and estimated a deposition value of 0.192 g/ha. 233 The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368

g/ha; and between 36 and 1,958 g/ha for various crops. 234 This shows that no damage

could have been caused in Ecuador.

233 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row

42.
234 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 191Witness 30:

The witness states that he has lived in Mataje, Province of Esmeraldas, for 34 years, and
about seventy meters from the Mataje River, which borders Colombia. He claims to “have

endured” the sprayings three times and describes the alleged ef fects caused by “the first
time it occurred”, in the year 2000. “I was working on my farm, clearing the land with a

machete. The planes were flying very close to the river, dropping a liquid that drifted with
the wind toward us.” 235

As shown in Figure 20, the spray events close to Mataje in 2000 were carried out on

Colombian territory, at a distance of over 4.5 kilometres from the Ecuadorian bank on the
border river, and yet the witness claims that the planes were “flying very close to the river,
dropping a liquid.” The falsehood is evident.

Moreover, Dr Hewitt modeled the event shown in Figure 20 and estimated a downwind
236
deposition value of 0.192 g/ha at a distance of 4.5 from the application site. As the level
of concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
237
g/ha; and between 36 and 1,958 g/ha for various crops , none of the alleged effects on
crops, plants and animals could have happened.

This witness also follows a structure quite resembling a script:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “[A]s I was clearing the land, my skin
touched the plants. I immediately felt my skin itch. Within a few days, I had

bumps on my skin. The bumps burned. My wife’s hands were affected and they
itched.”

• Loss of crops, and plants turning yellow. “After the sprayings, my crops were
affected. Eight days after the sprayings, the leaves on the cacao tree started falling

off, until not a single leaf was left; the tree dried up completely and i t died. The
same thing happened with the yucca. Within three days, the leaves fell off the yucca

and even the root rotted; the root smelled. The guineo also dried up, the leaves were
drying up and withering. The plants turned yellow. After a few weeks, eve rything

was dead. All the plants were dead on the ground.”
• Effects on soil and subsequent loss of productivity measured in quintals.

235
236 EM, Vol. IV, Annex 214 [Emphasis added].
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , row
42.
237 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; s ee also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 192• Alleged impacts on animals. “ I had some animals, including some pigs and

chickens. The liquid fell on the animal feed. The chickens eat maize. The pig eats
guineo and chileno, but these plants were contaminated. I had a hectare of plants, to
feed the animals, but all the plants were ruined, I no longer had any feed for the

animals. The plants were finished and the animals were finished.”
• Final dramatic statements. “I had to move, to replant in a new place. But this second

planting was affected by the second spraying. It was the same thing. After the third
spraying, I moved farther inland and planted again. Now, my crops are gr owing
better. With God’s help, now I have two hectares, growing food for my children and

pigs.”

Appendix page 193Appendix page 194 Witness 31

(EM, Vol. IV, Annex 215)

Appendix page 195 0°24'N 0°22'N 0°20'N

km
3

2

77°8'W 77°8'W

Scale: 1:60,000
l
u theSrpivrthaewInatknal boundary
i 1
M
a SpraCyoneordeesverriv
o Projection: UTM zone 17; Datum: WGS-84
R

0

Santa Rosa de los Cofanes

77°10'W 77°10'W

COFÁN RESERVE
ECUADOR

Disba(kctototteeTocrler2ri)er: 393 m

77°12'W 77°12'W
PERU

COLOMBIA
COLOMBIA

ECUADOR
PACIFIC

0°24'N 0°22'N 0°20'N Figure 13. Cofán Bermejo Reserve, Spray Lines in 2002 (Witnesses 26-27-29-31)

77°14'W 77°14'W

Appendix page 196 Cofán Bermejo Reserve, 2002 (Witness 31)

Metadata of the closest spray lines

METADATO SEGUNDA LINEA DE ASPERSION MAS CERCANA COFAN BERMEJO 2002 (Witnesses 26-27-29-31)

OBJECTISEG FILE_NAMEMISSIOSNIDELINESTART_TIMLEATITUDELONGITUDAELTITUDDFLET_LENTTE SPEED VOLUMAEREA LOG LENGTHONTSHWATHIRCRACTOPA_C_CROP
15196 358 I262A1BC.B99287-3Right64 12:12:06:600.3758077-177.202176910392 20,9 3,700 142,200 2,600 0 I262A1B6C,363 0209T-65 CocaT-65_Coca
PARAMETER 2S6 SEPTEMBER 2002 12:12 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
423 362 61

Attribute Table 22

COFÁN BERMEJO RESERVE:

Distance of the closest spray line to the Ecuadorian bank on the border river: 393 metres.

Hewitt modeled this event and estimated a deposition value of 0.700 g/ha. 238 The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368

g/ha; and between 36 and 1,958 g/ha for various crops. 239 This shows tha t no damage

could have been caused in Ecuador.

238 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row

18.
239 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 197 0°24'N 0°22'N 0°20'N

3m

2

Scale: 1:60,000
Santa Rosa de los Cofanes theSrpivrthaewInatknal boundary
1

Spray linerdeesrveriv
Projection: UTM zone 17; Datum: WGS-84

0

77°10'W 77°10'W

l
u
i
Mn
S
í
R

COFÁN RESERVE
Disba(nctotottteeTordler2rienr: 439 m ECUADOR

77°12'W 77°12'W

PERU
COLOMBIA

Disbta(kctototteeTEorledrri)enr: 340 m

COLOMBIA

77°14'W 77°14'W

ECUADOR

PACIFIC

0°24'N 0°22'N 0°20'N Figure 15. Cofán Bermejo Reserve, Spray Lines in 2004 (Witnesses 26-27-29-31)

Appendix page 198 Cofan Bermejo, 2004 (Witness 31)

Metadata of the closest spray lines

ATRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO COFAN BERMEJO IN 2004 (Witnesses 26-27-29-31)
OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TLAETITUDLEONGITAELTITUDDEOPFLT_TIMFELT_LENGTOHSPEED VOLUMAEREALENGTMH ONTSHWATAIRCRAFATC_CROCPROP
947 4399 L244A1AC.B0287-1Right51 8:27:20:300.375619-2747.205866516322 0,771116,1 4,400 161,900 2,5 2,562341,920412 50 T-65 T-65_CoCcaoca

PARAMETERS24 December 2004 08:27 FEET MILES/HOUR
ADDED ATTRIBUTES
Spray Line AltituGround AltitudeSpray Line Altitude over

overMSL(Metres) overMSL(Metres) GroundLevel (Metres)
403 380 23

Attribute Table 23

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO COFAN BERMEJO IN 2004 (Witnesses 26-27-29-31)
OBJECTIDSEG FILE_NAMEMISSIONSIDELINESTART_TLAETITUDLEONGITALETITUDDEOPFLT_TIMFELT_LENGTOHSPEED VOLUMAEREALENGTHONTSHWATHAIRCRAFATC_CROCPROP

817 4264 L244A1AC.B02187-1Right15 7:55:48:700.365819-0757.2263911182,1 0,484,9 53 157,400 2,2 1,113148,0780412 50 T-65 T-65_CoCcaoca
PARAMETERS 24 DECEMBER 2004 07:55 FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltituGround AltitudSpray Line Altitude over
over MSL (Metres) over MSL (MetrGround Level (Metres)
429 396 33

Attribute Table 24

COFÁN BERMEJO RESERVE:

Distance of the closest spray lines to the Ecuadorian bank on the border river: 439 and 340

metres.

Hewitt modeled these events and estimated deposition values of 0.506 g/ha an d 0.0833
240
g/ha, respectively. The level of concern for amphibians, the most sensitive animal

species according to Ecuador, is 1,368 g/ha; an d between 36 and 1,958 g/ha for various
241
crops. This shows that no damage could have been caused in Ecuador.

240
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , rows
28 and 54.
241
See CR, Vol. II,, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 199 0°24'N 0°22'N 0°20'N

km
77°8'W 3 77°8'W

el
ig
M
a 2
S
íR

Scale: 1:60,000

theSrpivrthaewIniatknal boundary
1

Spray linerdeesverriv
Santa Rosa de los Cofanes Projection: UTM zone 17; Datum: WGS-84

0

77°10'W 77°10'W

Disbta(kctototteeTEorledrri)enr: 932 m

COFÁN RESERVE
ECUADOR

77°12'W 77°12'W

PERU
COLOMBIA

COLOMBIA

77°14'W l 77°14'W
u
i
n
aS ECUADOR
í
R PACIFIC

0°24'N 0°22'N 0°20'N Figure 18. Cofán Bermejo Reserve, Spray Lines in 2007 (Witnesses 26-27-29-31)

Appendix page 200 Cofan Bermejo, 2007 (Witness 31)

Metadata of the closest spray lines

METADATO LINEA DE ASPERSION MAS CERCANA COFAN BERMEJO 2007 (Witnesses 26-27-29-31)
FID SEG FILE_NAME MISSISIDELINESTART_TETITUDELONGITUDAELTITUDDEOPFLT_TIMFELT_LENGSPEED VOLUMAEREALENGMONTHSWATHAIRCRAFTAC_CROPGROUP
70 4257 A147&VAC.B92987-3 - -21:17:48:909.380509-4797.2041,100 0,76 64,023 4195,700188,400 5,900 0,33264,0488570AT802 AT802_CocLaobo

PARAMETERS14 JANUARY 2007 11:17 METERS MILES/HOUR

ADDED ATTRIBUTES
Ground Altitude Spray Line
overMSL(Metres) Altitude over
367 49

Attribute Table 25

COFÁN BERMEJO RESERVE:

Distance of the closest spray line to the Ecuadorian bank on the border river: 932 metres.

Hewitt modeled this event and estimated a deposition value of 0.6199 g/ha. 242 The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
243
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage

could have been caused in Ecuador.

242
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row
23.
243
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 201 Witness 31:

The witness states that he lives in the community of Sukie Kankhe, “the closest to the San
Miguel River”, “on the banks of the San Miguel River” , in an area were there are three

other Cofán communities, one of them Avie . He claims that his community is within an

hour-and-a-half’s walking distance from the San José location in Colombia. He states that
there are two houses in his community of 9 persons, including himself, his wife and his

four children, where he acts as shaman. He claims that they have “endured” the sprayings
three times. The first time that he saw the sprayings he was in his house: “ The planes

crossed the river and flew over our community releasing that white smoke . They flew over

my house, I saw them.” Then he adds: “That smoke from the planes fell on my house and
also on my body”. The effects allegedly started immediately. 244

There were only four possibly relevant events, in the years 2002, 2004 and 2007 which, as

shown in Figures 13, 15 and 18 are the sprayings –all of them on Colombian territory– that
are closest to the witness’s location, 198 at distances of between 340 and 932 metres, with
210
only a single event in 2002 being at a distance of 393 metres. Yet the witness claims that

the planes crossed the river and sprayed over his house. The falsehood in this statement is
absolutely evident.

Hewitt modeled the closest events and estimated downwind deposition values of 0.700
245
g/ha, 0.506 g/ha, 0.0833 g/ha and 0.6199 g/ha, respectively. All of those values are
insignificant, considering that t he level of concern for amphibians, the most sensitive

animal species according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for
246
various crops. This shows that none of the alleged effects on plants, crops and animals
could have been caused in Ecuador, even ignoring the general wind trends in the area. 247

This was also confirmed by Dr Evans, who conducted an analysis on satellite images to

identify and quantify vegetation changes that occurred within the Cofán area. He concluded
that no evidence of defoliation caused by aerial herbicide spraying during August and
248
September of 2002 could be found in the study area.

The witness’sscript is also evident:

244 EM, Vol. IV, Annex 215.
245 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows

246 28, 54 and 23.
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
247. III, Annex 131-B, p. 330.
See CR, Vol. I, Chap. 2, sec. C, paras. 2.221 -2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
248 See CR, Vol. II, Annex 6: Dr B.M. Evans, Ph.D., Expert Report by Dr Barry M. Evans, Dec. 2011,
3.39-3.51, pp. 39- 49; “Consequently, in the Cofán study area, no evidence of defoliation caused by aerial
herbicide spraying during August and September of 2002 could be found.” Ibid., para. 3.69, p. 49.

Appendix page 202• Alleged impacts on human health: “At that moment, I felt as if my skin was going
numb, I felt my throat become dry and I got a cough. The effect was immediate and
it happened to most of my family.”

− Serious skin irritation/itching and bumps. “ My wife and children were also in
the community when it happened, the smoke also fell on their bodies and later

they had some terrible bumps, even on their heads, but mostly on the thorax.
Everyone developed the bumps, but they affected the children the most. The
problem with the bumps was not just the result of what fell on our bodies, but

also of what was left contaminated. For example, we wash our clothing in the
river and later we hang it to dry in the sun, which leaves it exposed. It was there
when the smoke also fell on the clothes and that continued to affect our skin.

That lasted for about two weeks, first we had small bumps and then a week later
they burst. The bumps itched a lot.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “In
addition, the children developed stomachaches, vomiting and diarrhea. That
started about two days after the sprayings and lasted for two days; the children

could not eat or drink anything.”
• Loss of crops, and plants turning yellow. “The sprayings also affected the plants. In

the community, we had planted maize, yucca, plantain, and papaya. The planes with
their smoke destroyed everything, the crops, the woodland, the jungle. The effects
on the plants were noticed after two days when they starting changing color, and

three days later they looked dry. After a few days of spraying, with the wind and the
rain, the leaves in the virgin jungle started to fall off and one could see the change,

because before everything was green, and after the sprayings one could see the
leaves falling off and the dry branches.” “[A]fter the sprayings, the plan ts that are
near our community and the river are now useless.” “I used to have a hectare sown

with yaje and that was also destroyed a few days after the first spraying.”
• Effects on soil and subsequent loss of productivity measured in quintals. “After the

sprayings, the earth no longer produced as it used to; it was left sick. I have planted
again and now that some time has passed in which the planes have not sprayed, the
crops are starting to produce.”

• Alleged impacts on animals. “ The animals were also affected. After the sprayings,
we saw dead animals. When the birds ate the fruits contaminated by the sprayings,

such as the plantain, they would get sick. The chickens that I had would vomit
everything they ate, shake and then die, now I do not have many chic kens. We also
saw many of the jungle birds become stiff and fall dead to the ground, we saw this

about four days after the spraying. Once, after the spraying, we hunted a guanta and
we could see that its hair had fallen off. Before, we used to go fishing, but now we

Appendix page 203 hardly fish, because there are now almost no fish in the river, as if something came
and destroyed them.”

• Final dramatic statements. “ [W]e, the Cofán, respect nature, we do not think of
destroying it, because looking after nature is looking afte r ourselves. But the

sprayings came without us being able to avoid them, it was something that we were
not familiar with and against which we could not defend ourselves; they affected the
jungle and with it our lives and our traditions.”

Appendix page 204 Witness 32

(EM, Vol. IV, Annex 216)

Appendix page 205 1°22'N 1°20'N 1°18'N

3m

2.5

2

1.5

78°38'W Scale: 178°38'W
theSrp1vthaewInatknal boundary

Spray lineote:er

0.5 Projection: UTM zone 17; Datum: WGS-84

0

DisDisaencetdoutejTacbl62670an bank on
COLOMBIA

78°40'W 78°40'W

aj
Mat
í
R

PERU

78°42'W 78°42'W

COLOMBIA

ECUADOR

Mataje ECUADOR

PACIFIC

1°22'N 1°20'N 1°18'N Figure 20. Mataje, Spray Lines in 2000 (Witnesses 30-32-33-34-36-37-38-39)

Appendix page 206 Mataje, 2000 (Witness 32)

Metadata of the closest spray lines

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO MATAJE IN 2000 (Witnesses 30-32-33-34-36-37-38-39)
OBJECTIDLINE_ID TIME ALTITUDXETRACK MPH HEADINS SPRAY_RATDEOPSV USEDDF STNID ASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFAT_C_CROCPROP
932 00283511:39:53.24497,500-249,73 151,900 46,4062,390 0,80010 9 0 -1 i140djac 296,1790009 50 Coca T-65 T-65_CocCaoca

PARAMETERS 11:39 FEET MILES/HOUR 14 September 2000
ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
151 97 54

Attribute Table 27

MATAJE:

Distance of the closest spray line to Mataje location: 5,660 metres, nearly six kilometres.

Distance to the Ecuadorian bank on the border river: 4,560 metres, over four and a half

kilometres.

Hewitt modeled this event and estimated a deposition value of 0.192 g/ha. 249 The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368

g/ha; and between 36 and 1,958 g/ha for various crops. 250 This shows that no damage

could have been caused in Ecuador.

249 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results, row

42.
250 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 207 1°22'N 1°20'N

78°40'W 78°40'W

COLOMBIA

DisDistanbctroeutrvTabla9280)an bank on
78°42'W 78°42'W

aaj
í M
R

Mataje

PERU
km
2.5

78°44'W 2 78°44'W

1.5 COLOMBIA

1 Scale: 1:60,000
theSrpivrthaewInatnal boundary

Spray linete:ver
0.5
Projection: UTM zone 17; Datum: WGS-84

0 ECUADOR

PACIFIC
Figure 21. Mataje, Spray Lines in 2002 (Witness 32)
1°22'N 1°20'N

Appendix page 208 Mataje, 2002 (Witness 32)

Metadata of the closest spray line

METADATO LINEA DE ASPERSION MAS CERCANA MATAJE 2002(Witness 32)
OBJECTSDG FILE_NAMM EISSOIDLEINSETART_ATEITUDLEONGITALTEIDDOPLT_TILTE_LENGTH SPEEDVOLUAMREEALOGLENGM TONSTHAATIRCRCAFTP_C_CROP
2905 240 B202U$CC.B9 99- -1 18:46:34:68.36273-77187.666434945,30 1639,619,1208,9002,5 0 B202U5$C0C,3407202 85 OV-CocaV-10_Coca

PARAMETER 20 DE FEBRERO 2002 13:46 METERS MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltitudGround AltitudeSpray Line Altitude over
over MSL (Metres)over MSL (Metres)Ground Level (Metres)
119 87 32

Attribute Table 28

MATAJE:

Distance to Mataje: 5,890 metres, nearly six kilometres.

Distance to the Ecuadorian bank on the border river: 5,160 metres, over five kilometres.

251
Hewitt modeled this event and estimated a deposition value of 0.0339 g/ha. The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
252
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage

could have been caused in Ecuador.

251
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row
66.
252
See CR, Vol. II,, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 209 1°22'N 1°20'N

78°40'W 78°40'W

COLOMBIA

DisDistancttroauarTEabl02290)an bank on
78°42'W 78°42'W

taj
í Ma
R

Mataje

PERU
km
2.5

78°44'W 2 78°44'W

1.5
COLOMBIA

1 Scale: 1:60,000
theSrpivthaewIniatnal boundary

Spray linete:v0.5
ECUADOR
Projection: UTM zone 17; Datum: WGS-84
0 ECUADOR

PACIFIC

1°22'N 1°20'N Figure 22. Mataje, Spray Lines in 2003 (Witness 32)

Appendix page 210 Mataje, 2003 (Witness 32)

Metadata of the closest spray line

METADATO LINEA DE ASPERSION MAS CERCANA MATAJE 2003(Witness 32)

OBJECTSEG FILE_NAMM EISSSIDLEINSETART_TMTEITULDOENGULDTEITUFLT_TIFLTE_LEGTTEH SPEEDVOLUMREEALOGLENGM THONSTHATAIRCRCRFOP_C_CROP
16457928 A20325BC.B9939-1- - - 1 15:9.1518-81.966664470597 0,8901,85 453,21,400167,0002,6000,5413C,8503301 85 AT802CocaT802_Coca

PARAMETER2S0 DE ENERO 2003 15:06 FEET MILES/HOUR
ADDED ATTRIBUTES
Spray Line AltitudGround AltitudeSpray Line Altitude over

over MSL (Metres)over MSL (Metres)Ground Level (Metres)
124 89 35

Attribute Table 29

MATAJE:

Distance to Mataje: 5,900 metres, nearly six kilometers.

Distance to the Ecuadorian bank on the border river: 5,200 metres, over five kilometers.

253
Hewitt modeled this event and estimated a deposition value of 0.0372 g/ha. The level of

concern for amphibians, the most sens itive animal species according to Ecuador, is 1,368
254
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage

could have been caused in Ecuador.

253
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row
65.
254
See CR, Vol. II,, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 211 Witness 32:

The witness states that he lives in Mataje, about thirty meters from the Mataje River, but his
farm is a little further inland, about five -city blocks away. He remembers the spraying in

three occasions: the first time was in 2000, the second was a few years later, and he thinks
that the third one was in 2004. However, he claims that the second spraying is the one that

allegedly affected him most: “The planes were releasing a whitish mist and, since I was in
the canoe and the planes were flying near methat mist fell on my body.” 255

The events shown in Figure 20 were sprayings on Colombian territory , near the witness’s

location, in 2000. They were carried out at a distance of over 4.5 kilometres from the
Ecuadorian bank on the border river, and over 5.6 kilometres from the location of Mataje.

Given that the witness claims the “second spraying” was the one that affected him the most,

and that it took place “a few years later”, the relevant spray events in 2002 and 2003 are

also analysed. As shown in Figure 21, i n 2002 the event closest to the witness’s location
was a spraying o n Colombian territory, at a distance of over 5 kilometres from the

Ecuadorian bank on the border river. In 2003, the event shown in Figure 22 was the closest
spraying, at a distance of over 5.2 kilometres from the Ecuadorian bank on the border river .

Yet the witness claims that he “saw the planes coming from Colombia, they were flying
over my head, following the river ”, “the planes were flying near me, that mist fell on my

body”. The falsehood is evident.

Furthermore, at the distances involved none of t he alleged effects on plants, crops and
animals could have been caused, even ignoring the general wind trends in the area. 256

Hewitt modeled these events and estimated downwind deposition values of 0.192 g/ha,
0.0339 g/ha and 0.0372 g/ha at the Ecuadorian ba nk of the border river. 257 The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
258
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage
could have been caused in Ecuador.

Finally, it is quite evident that the Witness No. 32 also follows the usual script:

• Alleged impacts on human health:

255 EM, Vol. IV, Annex 216 [Emphasis added].
256 See CR, Vol. I, Chap. 2, sec. C, paras. 2.221 -2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).
257 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
42, 66 and 65.
258
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 212 − Serious skin irritation/itching and bumps. “The following day we were still sick

and, we also woke up with bumps on our bodies”.
− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “About
three hours after dinner, everyone in the house was sick with stomachache,

vomiting and diarrhea.”
• Loss of crops, and plants turning yellow. “All my crops were ruined, they turned

yellow and little by little they dried up, after the spraying. First, the leaves were
affected; they would wither and dry up until they fell off the plant. The plant also
dried up until it finally died.”

• Effects on soil and subsequent loss of productivity measured in quintals. “After
everything had dried up, we tried planting again, but the plants did not produce,

they grew a little, to a very small height, and instead of growing more they would
die without producing.”
• Alleged impacts on animals. “The following day I went to get shrimp because I saw

that they were dying on the banks of the river. When I arrived at the river, the
shrimp were dying on dry land.” “Aside from the shrimp, other animals were also

affected. The ones that suffered the most were the pigs. After the sprayings, they got
sick, they seemed sad and they would not eat anything, they got thin and, in the end,
some of them starved to death.” “My dog, named Laisa, got sick. She was vomiting

and would not eat, and fifteen days later she died.”
• Final dramatic statements. “I have always lived off farming but after the sprayings, I

could no longer do it, that is why I was forced to move to the new town of Mataje in
search for a job and opportunities to survive, just like many other families in town.
The new town was established after the sprayings, it was formed for and by families

that wanted to flee from the banks of the river, the planes, the poison being dropped,
and from all the deaths that this has caused. Now there are nineteen houses in the

new town, all of them full of people who came, trying to escape from the
sprayings.”

Appendix page 213Appendix page 214 Witness 33

(EM, Vol. IV, Annex 217)

Appendix page 215 1°22'N 1°20'N 1°18'N

3m

2.5

2

1.5

78°38'W Scale: 178°38'W
theSrp1vthaewInatknal boundary

Spray lineote:er

0.5 Projection: UTM zone 17; Datum: WGS-84

0

DisDisaencetdoutejTacbl62670an bank on
COLOMBIA

78°40'W 78°40'W

aj
Mat
í
R

PERU

78°42'W 78°42'W

COLOMBIA

ECUADOR

Mataje ECUADOR

PACIFIC

1°22'N 1°20'N 1°18'N Figure 20. Mataje, Spray Lines in 2000 (Witnesses 30-32-33-34-36-37-38-39)

Appendix page 216 Mataje, 2000 (Witness 33)

Metadata of the closest spray lines

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO MATAJE IN 2000 (Witnesses 30-32-33-34-36-37-38-39)
OBJECTIDLINE_ID TIME ALTITUDXETRACK MPH HEADINGS SPRAY_RATDEOPSV USEDDF STNID ASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFAT_C_CROCPROP
932 00283511:39:53.24497,500-249,73 151,46,4001 62,390 0,80010 9 0 -1 i140djac 296,1790009 50 Coca T-65 T-65_CocCaoca

PARAMETERS 11:39 FEET MILES/HOUR 14 September 2000
ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
151 97 54

Attribute Table 27

MATAJE:

Distance of the closest spray line to Mataje location: 5,660 metres, nearly six kilometres.

Distance to the Ecuadorian bank on the border river: 4,560 metres, over four and a half

kilometres.

Hewitt modeled this event and estimated a deposition value of 0.192 g/ha. 259 The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368

g/ha; and between 36 and 1,958 g/ha for various crops. 260 This shows that no damage

could have been caused in Ecuador.

259 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row

42.
260 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 217 Witness 33:

The witness states that he has lived all his life in Mataje, Esmeraldas Province, in a house

that is about a kilometer from the Mataje River, which borders Colombia. He refers to the
first time that the planes came by spraying from Colombia , in the year 2000. “I remember

that the first time that the planes came by spraying from Colombia was in the year two
thousand. I was working in the f ield, which is right next to the river. I saw some white
261
planes, escorted by some helicopters , spraying along the border .” The alleged effects
began three days later.

The events shown in Figure 20 were sprayings on Colombian territory in 2000, at a
distance of over 2 kilometres, in the case of the spray event closest to the border in that

general area; and another, at over 4.5 kilometres from Ecuadorian bank on the border river
projected towards Mataje. Yet, the witness claims that he “saw some white pl anes,

escorted by some helicopters, spraying along the border.” The falsehood is evident.

262
Hewitt modeled this event and estimated a deposition value of 0.192 g/ha. The level of
concern for amphibians, the most sensitive animal species according to Ecua dor, is 1,368
263
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage
could have been caused in Ecuador.

Anyway, the witness statement contains the usual elements as follows:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “ Nevertheless, about three days after
the spraying, I had bumps all over my body. They itched a lot. The bumps lasted

for about two months.”
− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “I also

had vomiting and diarrhea, which lasted for about five days.” “A lot of the
children had diarrhea and vomiting, including the children in my family. The

adults were also sick but the children were affected more.”
• Loss of crops, and plants turning yellow. “Shortly after the spraying, the pasture

grass died. There were no plants left on our farm, everything was dead and dry as a
desert. About a week after the spraying, the plantain, yucca and cacao had rotted.

The lemon and guava fruits fell to ground and rotted.”

261
262 EM, Vol. IV, Annex 217 [Emphasis added].
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , row
42.
263 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 218• Alleged impacts on animals. “The animals that we had on the farm, the chickens

and dogs, either died or became sick and thin. I also noticed that on the same day
that they sprayed over us, the shrimp and fish died, and they were dying in the
river.”

• He/she had never experienced anything similar before. “I had never seen anything
like it before.”

• Final dramatic statements. “The entire community lost their crops; my family and I
went to work near Orellana in order to buy food. There were two other times that
they came by to spray and the same effects occurred. I hope they do not return

again.”

Appendix page 219Appendix page 220 Witness 34

(EM, Vol. IV, Annex 218)

Appendix page 221 1°22'N 1°20'N 1°18'N

3m

2.5

2

1.5

78°38'W Scale: 178°38'W
theSrp1vthaewInatknal boundary

Spray lineote:er

0.5 Projection: UTM zone 17; Datum: WGS-84

0

DisDisaencetdoutejTacbl62670an bank on
COLOMBIA

78°40'W 78°40'W

aj
Mat
í
R

PERU

78°42'W 78°42'W

COLOMBIA

ECUADOR

Mataje ECUADOR

PACIFIC

1°22'N 1°20'N 1°18'N Figure 20. Mataje, Spray Lines in 2000 (Witnesses 30-32-33-34-36-37-38-39)

Appendix page 222 Mataje, 2000(Witness 34)

Metadata of the closest spray lines

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO MATAJE IN 2000 (Witnesses 30-32-33-34-36-37-38-39)

OBJECTIDLINE_ID TIME ALTITUDXETRACK MPH HEADINSGSPRAY_RATDEOPSV USEDDFSTNID ASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFAT_C_CROCPROP
932 00283511:39:53.24497,500-249,73 151,900 46,462,390 0,80010 9 0 -1 i140djac 296,1790009 50 Coca T-65 T-65_CocCaoca

PARAMETERS 11:39 FEET MILES/HOUR 14 September 2000
ADDED ATTRIBUTES
Spray Line AltitudGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
151 97 54

Attribute Table 27

MATAJE:

Distance of the closest spray line to Mataje location: 5,660 metres, nearly six kilometres.

Distance to the Ecuad orian bank on the border river: 4,560 metres, over four and a half

kilometres.

264
Hewitt modeled this event and estimated a deposition value of 0.192 g/ha. The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
265
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage

could have been caused in Ecuador.

264
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row
42.
265
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 223Witness 34:

The witness states that he “was in Mataje when the first spraying occurred in the year 2000.
During that time, I was living in a house, in Mataje, right on the banks of the Mataje River,

like the majority of the houses in the community. You could see the river from the house,
it was only a few meters away.” He claims that he w as working in the field, cleaning the

land, when he saw several planes above that came and “dropped a liquid” that fell on him,
on his head, arms, and all over his body. Immediately, he allegedly felt his skin itch
266
intensely, and his face became swollen and disfigured.

One of the events shown in Figure 20 was a spraying on Colombian territory, at a distance
of over 4.5 kilometres from the Ecuadorian bank on the border river , and yet the witness
claims that “ [he] saw several planes above” and that the liquid fell on him , on his head,

arms, and all over his body. The falsehood is evident.

The witness further alleges loss of plants, crops and animals. However, Hewitt modeled the
closest event and estimated a downwind deposition value of 0.192 g/ha. 267The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
g/ha; and between 36 and 1,958 g/ha for various crops. 268 This shows that no damage

could have been caused in Ecuador.

The common elements in all the statements are also systematically repeated by this witness:

• Alleged impacts on human health:
− Serious skin irritation/itching and bumps. “ Immediately, I felt my skin itch

intensely. My whole body was itching. Above all, my face became very swollen
and felt warm with the itching. It disfigured me so much that when the reporters

from Telemar came to Mataje to investigate the sprayings, I did not want them
to interview me because my face looked terrible. I also got bumps all over my

skin. I had a rash that burned and my skin peeled quite a bit.”
− Eye burning/Chiefly o n children, headaches, vomit, fever and diarrhea.

“Moreover, I had a terrible fever, an intense headache and I did not want to eat
anything. I was very sick for about fifteen days.”

• Loss of crops, and plants turning yellow. “After the spraying, the plants also died.”
“A few days after the spraying, we could see that the plants were dying. The fruits

looked burned, black. The lemon turned black. The same thing happened to the

266
267 EM, Vol. IV, Annex 218 [Emphasis added].
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , row
42.
268 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 224 plantain, it was black both outside and inside. The same happened to the cacao. We
could not eat these fruits. The leaves were black, withered and falling off. The stems

of several plants started to rot and, in the end, they all died.”
• Alleged impacts on animals. “ After the spraying, there were a lot of dead fish and

shrimp. Usually, the fish and shrimp are below the water level. But, after the
sprayings, they were floating on the surface of the river and going downstream with
the current. I observed this immediately after the sprayings. We could not use fish

or shrimp to eat because they were infected. In addition to the fish and shrimp, other
animals also died. At home, we had chickens that began to die, little by little. I

would go looking for the chickens and I would find them dead everywhere, one near
the river, another one in the bush. In the end, most of the chickens died.”
• Final dramatic statements. “After the sprayings, we could no longer sell the crops

because they were ruined. With no crops to sell, we had to find other jobs to support
ourselves.”

Appendix page 225Appendix page 226 Witness 36

(EM, Vol. IV, Annex 219)

Appendix page 227 1°22'N 1°20'N 1°18'N

3m

2.5

2

1.5

78°38'W Scale: 178°38'W
theSrp1vthaewInatknal boundary

Spray lineote:er

0.5 Projection: UTM zone 17; Datum: WGS-84

0

DisDisaencetdoutejTacbl62670an bank on
COLOMBIA

78°40'W 78°40'W

aj
Mat
í
R

PERU

78°42'W 78°42'W

COLOMBIA

ECUADOR

Mataje ECUADOR

PACIFIC

1°22'N 1°20'N 1°18'N Figure 20. Mataje, Spray Lines in 2000 (Witnesses 30-32-33-34-36-37-38-39)

Appendix page 228 Mataje, 2000 (Witness 36)

Metadata of the closest spray lines

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO MATAJE IN 2000 (Witnesses 30-32-33-34-36-37-38-39)

OBJECTIDLINE_ID TIME ALTITUDXETRACK MPH HEADINGS SPRAY_RATDEOPSV USEDDF STNID ASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFAT_C_CROCPROP
932 00283511:39:53.24497,500-249,73 151,900 46,4062,390 0,80010 9 0 -1 i140djac 296,1790009 50 Coca T-65 T-65_CocCaoca
PARAMETERS 11:39 FEET MILES/HOUR 14 September 2000

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
151 97 54

Attribute Table 27

MATAJE:

Distance of the closest spray line to Mataje location: 5,660 metres, nearly six kilometres.

Distance to the Ecuadorian bank on the border river: 4,560 metres, over four and a half

kilometres.

269
Hewitt modeled this event and estimated a deposition value of 0.192 g/ha. The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368

g/ha; and between 36 and 1,958 g/ha for various crops. 270 This shows that no damage

could have been caused in Ecuador.

269
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row
42.
270
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 229Witness 36:

The witness states that she lived in Mataje, a few steps from the Mataje river. She claims
that the first time that she saw the sprayings was in the year 2000. She was cleaning the

land in her farm and she saw planes and helicopters flying over the river: “From the planes,
a white rain was coming out. That rain fell on top of me and also on top of my son; it

looked like grease on the skin.” Then she describes the alleged impacts caused after that
incident.271

The events shown in Figure 20 were sprayings in the relevant area in 2000. All of them

were carried out on Colombian territory, at a minimum distance of over 4.5 kilometres from
the Ecuadorian bank on the border river . Yet the witness claims that she “saw planes and

helicopters flying over the river and that the spraying fell on top of her.” The falsehood is
evident.

But her falsity goes even further as she claims alleged effects on crops, plants and animals.

Hewitt modeled the closest event to the witness’s location and estimated a downwind
deposition value of 0.192 g/ha. 272 The level of concern for amphibians, the most sensitive

animal species according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for
various crops. 273 This shows that no damage could have been caused in Ecuador , not even

with the wind blowing toward Mataje.

The witness is also particularly dramatic: “I was so sick that they had to take me to the
hospital in Esmeraldas where I was admitted for six days. I almost died.” “In those days it

was as if there was a plague that attacked all the children.” None of these effects are caused
by the spray mixture.

The statement’s structure also follows the common script:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “But, on the following day, I woke up
sick, with […]itchiness on my body.” “My younger son developed bumps on his

face, one could not even touch it, his skin was very swollen and irritated.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea . “But, on
the following day, I woke up sick, with a stomachache, vomiting, diarrhea […].”
“My younger son, Luis, and my other son, Segundo, became sick a few days

271
272 EM, Vol. IV, Annex 219.
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , row
273
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 230 after the spraying. They had a stomachache, vomiting and a strange skin
irritation.”

• Loss of crops, and plants turning yellow. “When I returned home, I saw that all the
plantain had died. On my farm, I had plantain, chocolate and yucca. Very few

chocolate plants survived the spraying. The leaves of the plants were withered. The
plantain was stained with spots. Everything was burned as if someone had put a
bomb there. The leaves of the yucca plant were drying up and falling off, the [sic]

stem of the plant was drying and dying, the yucca itself came out rotten. It was no
longer valuable, it could not be eaten.”

• Alleged impacts on animals. “ They kept harvesting the damaged yucca to feed my
chickens, which died a week later.”

• Dramatic statements: “The money for my family comes from selling the yucca and
chocolate in San Lorenzo. But we no longer had anything to sell or to eat, and, in
addition, we had the hospital debt.”

Appendix page 231Appendix page 232 Witness 37

(EM, Vol. IV, Annex 220)

Appendix page 233 1°22'N 1°20'N 1°18'N

3m

2.5

2

1.5

78°38'W Scale: 178°38'W
theSrp1vthaewInatknal boundary

Spray lineote:er

0.5 Projection: UTM zone 17; Datum: WGS-84

0

DisDisaencetdoutejTacbl62670an bank on
COLOMBIA

78°40'W 78°40'W

aj
Mat
í
R

PERU

78°42'W 78°42'W

COLOMBIA

ECUADOR

Mataje ECUADOR

PACIFIC

1°22'N 1°20'N 1°18'N Figure 20. Mataje, Spray Lines in 2000 (Witnesses 30-32-33-34-36-37-38-39)

Appendix page 234 Mataje, 2000(Witness 37)

Metadata of the closest spray lines

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO MATAJE IN 2000 (Witnesses 30-32-33-34-36-37-38-39)

OBJECTIDLINE_ID TIME ALTITUDXETRACK MPH HEADINS SPRAY_RATDEOPSV USEDDF STNIDASCIINAME LENGTHMONTHSWATHMISSION AIRCRAFAT_C_CROCPROP
932 00283511:39:53.24497,500-249,73 151,900 46,4062,390 0,80010 9 0 -1 i140djac 296,1790009 50 Coca T-65 T-65_CocCaoca

PARAMETERS 11:39 FEET MILES/HOUR 14 September 2000
ADDED ATTRIBUTES
Spray Line AltitudGround Altitude Spray Line Altitude over
over MSL (Metres)over MSL (Metres) Ground Level (Metres)
151 97 54

Attribute Table 27

MATAJE:

Distance of the closest spray line to Mataje location: 5,660 metres, nearly six kilometres.

Distance to the Ecuadorian bank on the border river: 4,560 metres, over four and a half

kilometres.

274
Hewitt modeled this event and estimated a deposition value of 0.192 g/ha. The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
275
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage

could have been caused in Ecuador.

274 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row

42.
275 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 235Witness 37:

The witness states that he has “lived all [his] life in Mataje, a community that has twenty -
five houses in the original town, and now about seve nteen houses more inland, in the new

town.” He claims to remember three sprayings, and refers to the alleged effects after t he
first time, which was in the year 2000. He was working on his farm, at the edge of the river

and allegedly he “saw several planes and some helicopters coming from the Colombian
side, dropping a liquid. The liquid looked like smoke and it fell on the ground and on my
276
body, it looked shiny.”

The events shown in Figure 20 were conducted on Colombian territory near the witness’s
location, at a distance of over 4.5 kilometres from the Ecuadorian bank on the border river.
Yet the witness claims that “[t]he liquid looked like smoke and it fell on the ground and on

my body.” The falsehood is evident.

Hewitt also modeled this event and e stimated a downwind deposition value of 0.192
g/ha.277 The level of concern for amphibians, the most sensitive animal species according to
278
Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. This shows
that no damage could have been caused in Ecuador, not even for plants and crops.

But still, the witness follows his script as follows:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “When it fell on my skin, I felt a very
strong itch.” “Two days after the sprayings, I developed bumps on my arms and

face.”
− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “I also

felt it in my eyes and it affected my sight, which to this day has not recovered.”
• Loss of crops, and plants turning yellow. “On my farm, more or less one cultivated

hectare, I have planted cacao, yucca, plantains, and sugarcane, all of which have
dried up. A few days after the sprayings, I noticed the effect on the leaves. They

started to wrinkle and then turned yellow. Several we eks later, the plants died. The
plantain plant and its fruit dried up, and we could not eat it because it had been

ruined. The cacao dried up, including the leaves, and the tree died. Moreover, the
yucca also rotted, even though the crop is below the ground; it turned black and the

plant above the ground dried up.”

276
277 EM, Vol. IV, Annex 220.
CR, Vol. II,, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , row
42
278 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 236• Effects on soil and subsequent loss of productivity measured in quintals. “The land

remained affected for several months, there was nothing there. For some years, we
hardly planted anything because the land would not produce. Fortunately, now the
land is recovering little by little.”

• Alleged impacts on animals. “ I think the river was already contaminated with the
mist that fell. I know because the shrimp and fish started to die immediately.” “On

my farm, I have pigs, turkeys and chickens. Little by little, after the sprayings, they
became thin and then died. I think they died because they were eating dead bugs
found dead on the hill after the spraying.”

• He/she had never experienced anything similar before. “This had never happened to
me before, it was something very odd.”

• Final dramatic statements. “ It is hard [for the campesinos ] to invest all this work
only to lose their crops. We were living off of the agriculture, but because of the
spraying, we could no longer feed our families with the crops. We also no longer

had anything to sell after the sprayings. There was a lot of suffering in the
community. There was nowhere to go; we did not have the means to move to the

city.”

Appendix page 237Appendix page 238 Witness 38

(EM, Vol. IV, Annex 221)

Appendix page 239 1°22'N 1°20'N 1°18'N

3m

2.5

2

1.5

78°38'W Scale: 178°38'W
theSrp1vthaewInatknal boundary

Spray lineote:er

0.5 Projection: UTM zone 17; Datum: WGS-84

0

DisDisaencetdoutejTacbl62670an bank on
COLOMBIA

78°40'W 78°40'W

aj
Mat
í
R

PERU

78°42'W 78°42'W

COLOMBIA

ECUADOR

Mataje ECUADOR

PACIFIC

1°22'N 1°20'N 1°18'N Figure 20. Mataje, Spray Lines in 2000 (Witnesses 30-32-33-34-36-37-38-39)

Appendix page 240 Mataje, 2000 (Witness 38)

Metadata of the closest spray lines

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO MATAJE IN 2000 (Witnesses 30-32-33-34-36-37-38-39)
OBJECTIDLINE_ID TIME ALTITUDXETRACK MPH HEADINGS SPRAY_RATDEOPSV USEDDF STNID ASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFAT_C_CROCPROP

932 00283511:39:53.24497,500-249,73 151,900 46,4062,390 0,80010 9 0 -1 i140djac 296,1790009 50 Coca T-65 T-65_CocCaoca
PARAMETERS 11:39 FEET MILES/HOUR 14 September 2000
ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
151 97 54

Attribute Table 27

MATAJE:

Distance of the closest spray line to Mataje location: 5,660 metres, nearly six kilometres.

Distance to the Ecuadorian bank on the border river: 4,560 metres, over four and a half

kilometres.

279
Hewitt modeled this event and estimated a deposition value of 0.192 g/ha. The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
280
g/ha; and between 36 and 1,958 g/ha for various crops. This shows that no damage

could have been caused in Ecuador.

279
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results ,
row 42.
280
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 241Witness 38:

The witness states that he came to Mataje when he was 22 years old: “I am a farmer and

until last year my house was located on the banks of the Mataje River. I remember seeing
sprayings on three occasions. The first time that I saw the sprayings was in the year 2000, I

was working on my farm, which is farther inland from the river. I saw several planes
escorted by a helicopter. The planes were releasing a white smoke that, with the wind, was

dispersed in the air. When I saw the planes, I hid by a tree so that the liquid would not fall
on me too much, but it still fell on me.” 281

Figure 20 shows the spraying in the area in 2000. The closest event was conducted on

Colombian territory at a distance of over 4.5 kilometres from E cuadorian bank on the

border river, and yet the witness claims that he “hid by a tree so that the liquid would not
fall on [him] too much, but it still fell on [him].” The falsehood is evident. Colombia has

shown so with an objective source, the spray da ta furnished to Ecuador by the Department
of State.

Furthermore, Hewitt modeled the closest event and estimated a downwind deposition value
282
of 0.192 g/ha. The level of concern for amphibians, the most sensitive animal species
according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 283

This shows that no damage on plants and crops could have been caused in Ecuador , not
even with the wind blowing from the north to the south. 284

Moreover, the following shows that the statement is above all a pre-prepared script:

• Alleged impacts on human health:
− Serious skin irritation/itching and bumps. “ Shortly thereafter, I had bumps on

my skin; they heal with medicine but I still get them to this day.”
• Loss of crops, and plants turning yellow. “A few days after the sprayings, the plants

were also affected; the leaves would turn red, become dry and fall off. The trees
were left bare, without leaves. Everything had a scorched appearance. On my farm,

I had planted yucca, sugar cane, cacao, and plant ain. All my crops dried up
completely; they were dead, but completely dead. The land, the forest had become

281 EM, Vol. IV, Annex 221.
282 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results ,
row 42.
283 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

284. III, Annex 131-B, p. 330.
See CR, Vol. I, Chap. 2, sec. C, paras. 2.221-2.224; see also CR, Vol. II, Annex 19: IDEAM Climate
Characterization (2011).

Appendix page 242 pampas, everything burned. There was nothing to eat in the community, the
bunches that were green dried up.”

• Effects on soil and subsequent loss of productivity measured in quintals. “After the
sprayings, we did not re-plant this land for a long time.”

• Alleged impacts on animals. “ A couple days later, dead fish and shrimp appeared.
They were leaning against the edge of the river as if escaping from t he water, and

dying there.”
• He/she had never experienced anything similar before. “ I had never suffered from
this before, and now, I cannot get rid of it.” “ I had never seen anything like it

before.” [concerning the alleged dead shrimps].
• Final dramatic statements. “The sprayings have caused us a lot of damage. I left old

Mataje, fleeing from all of this, now I live near there but farther inland, in the new
village of Mataje. I had no choice; things in Mataje were very difficult after the
sprayings, we could no longer live there.”

Appendix page 243Appendix page 244 Witness 39

(EM, Vol. IV, Annex 222)

Appendix page 245 1°22'N 1°20'N 1°18'N

3m

2.5

2

1.5

78°38'W Scale: 178°38'W
theSrp1vthaewInatknal boundary

Spray lineote:er

0.5 Projection: UTM zone 17; Datum: WGS-84

0

DisDisaencetdoutejTacbl62670an bank on
COLOMBIA

78°40'W 78°40'W

aj
Mat
í
R

PERU

78°42'W 78°42'W

COLOMBIA

ECUADOR

Mataje ECUADOR

PACIFIC

1°22'N 1°20'N 1°18'N Figure 20. Mataje, Spray Lines in 2000 (Witnesses 30-32-33-34-36-37-38-39)

Appendix page 246 Mataje, 2000 (Witness 39)

Metadata of the closest spray lines

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO MATAJE IN 2000 (Witnesses 30-32-33-34-36-37-38-39)
OBJECTIDLINE_ID TIME ALTITUDXETRACK MPH HEADINGS SPRAY_RATDEOPSV USEDDF STNIDASCIINAME LENGTHMONTHSWATHMISSIONAIRCRAFAT_C_CROCPROP
932 00283511:39:53.24497,500-249,73 151,900 46,4062,390 0,80010 9 0 -1 i140djac 296,1790009 50 Coca T-65 T-65_CocCaoca

PARAMETERS 11:39 FEET MILES/HOUR 14 September 2000
ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres)over MSL (Metres) Ground Level (Metres)
151 97 54

Attribute Table 27

MATAJE:

Distance of the closest spray line to Mataje location: 5,660 metres, nearly six kilometres.

Distance to the Ecuadorian bank on the border river: 4,560 metres, over four and a half

kilometres.

Hewitt modeled this event and estimated a deposition value of 0.192 g/ha. 285 The level of

concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368

g/ha; and between 36 and 1,958 g/ha for various crops. 286 This shows that no damage

could have been caused in Ecuador.

285
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , row
42.
286
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 247Witness 39

The witness states that she lives in Mataje and her house is next to the Mataje River. The
whole town is located near the river. The first spraying that she remembers was in the year

2000, and that was the one that allegedly “affected [her] the most”: “I was in the river with
my children.” “The planes were flying over the river and dropping a whitish- gray
287
liquid.”

The events shown in Figure 20 were the spraying lines carried out on Colombian territory
in the relevant area. All of them are at a minimum distance of over 4.5 kilometres from the

Ecuadorian bank on the border river , and yet the witness claims that “[t]he planes were
flying over the river and dropping a whitish-gray liquid.” The falsehood is evident.

The alleged effects on plants, crops and animals are contradicted by DrHewitt’s modelling.
He estimated a downwind deposition value of 0.192 g/ha. 288 The level of concern for

amphibians, the most sensitive animal species according to Ecuador, is 1,368 g/ha; and
between 36 and 1,958 g/ha for various crops. 289 This shows that no damage could have

been caused in Ecuador.

Finally, the witness adheres to his script as follows:

• Alleged impacts on human health:
− Serious skin irr itation/itching and bumps. “ The poison that fell over us caused

our body and eyes to itch. A few days later, my children had bumps on their
bodies that itched a lot.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea.
• Loss of crops, and plants turning yellow. “After the sprayings, the plants began to

dry up little by little, they became discolored, they seemed burned and, in the end,
we had to cut them because they were all dead. The other plants that were near the

house started to lose their leaves and dry up, they also broke, and then died.”
• Effects on soil and subsequent loss of productivity measured in quintals.

“Afterward, we did not re -plant because we were afraid that the same thing would
happen again with another spraying.”

• Alleged impacts on animals. “ After the sprayings, there were a lot of dead fish in
the river. My son Gabriel told me that he had seen a lot of minchillas , which are a

287
288 EM, Vol. IV, Annex 222.
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 5, Table of Model Results ,
row 42.
289 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 248 type of shrimp, dead in the river.” “The chickens were also affected, and every now
and then they would fall dead on the ground.”

• He/she had never experienced anything similar before.

Final dramatic statements. “ Some people left the town because one could no longer live

there. We could not plant, and we had to look for another place where we could be and
plant peacefully without being afraid that the planes might return and ruin our crops.
Several families moved from old Mataje to the new town, which is nearby but farther into

the interior.”

Appendix page 249Appendix page 250 Witness 40

(EM, Vol. IV, Annex 223)

Appendix page 251 1°16'N 1°14'N 1°12'N

km
3

78°30'W 2.5 78°30'W

2

1.5
Scale: 1:60,000
theSrpivthaewInatknal boundary
1
SpraIyinrenational boundary

Projection: UTM zone 17; Datum: WGS-84
0.5

0

DisDistancetrouterTearla:31)i9a0bank on
DisDistanbctroeutrjTarboa308)a0nbank on ra
78°32'W M 78°32'W
ío
R

Mataje Alto

ECUADOR

AWA RESERVE

78°34'W 78°34'W

PERU

COLOMBIA
COLOMBIA

j
t
Ma
í
R

78°36'W 78°36'W
ECUADOR

PACIFIC
Figure 23. Awa-Mataje Alto, Spray Lines in 2002 (Witnesses 40-41)
1°16'N 1°14'N 1°12'N

Appendix page 252 Mataje Alto, 2002 (Witness 40)

Metadata of the closest spray lines

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO MATAJE ALTO IN 2002 (Witness 41)
FID SEGFILE_NAMEISSIOSNIDELINESTART_TIMLEATITUDELONGIAELTITDEPFLT_TIFLET_LENTHE SPEED VOLUMAREEA LOG LENGTMHONTSWATAHIRCRACFRTOPA_C_CROP

5051 66 E142Q4AC 99-R2ight45 1.2580863-788.56520 0,770 0 0 21,900208,300 2,800 0 E142Q41A7C3,3510205 8OV-10CocaOV-10_Coca
PARAMETER1S4 May 2002 NO REGISTRA FEET MILES/HOUR
ADDED ATTRIBUTES

Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
211 171 40
Attribute Table 30

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO MATAJE ALTO IN 2002(Witness 41)
FID SEGFILE_NAMEISSIOSNIDELINESTART_TIMLEATITUDELONGIAELTITDEPFLT_TIFLET_LENTHE SPEED VOLUMAREEA LOG LENGTMHONTSWATAHIRCRACFRTOPA_C_CROP
5085 101 E142SGAC 99-R2ight62 1.2536447-758.55995 0,770 0 0 31,700197,100 2,500 0 E142SG1A2C3,6290205 8OV-10CocaOV-10_Coca

PARAMETER 1S May 2002 NO REGISTRA FEET MILES/HOUR
ADDED ATTRIBUTES

Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
220 183 37
Attribute Table 31

MATAJE ALTO:

Distance of the two closest spray lines to Mataje Alto location: 6890 metres and 6390

metres.

Distance to the Ecuadorian bank on the border river: 1430 metres and 970 metres,

respectively.

Hewitt modeled these events and estimated deposition values of 0.08 g/ha and 0.14 g/ha,
290
respectively. The level of concern for amphibians, the most sensitive animal species

according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 291

This shows that no damage could have been caused in Ecuador.

290 CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , rows

55 and 46.
291 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,

Vol. III, Annex 131-B, p. 330.

Appendix page 253Witness 40:

The witness states that he “was born in the Mataje Alto Awá Community , “I now live in

Ibarra, as of a year ago.” Then he adds: “During my time in Mataje Alto, I remember
having experienced the fumigations about five times. I thi nk they sprayed every three to

seven months, perhaps once or twice a year. The first time was in 2002, when I saw three
planes and a helicopter. The helicopter was flying higher than the planes, and a type of

water was coming out of the planes, it looked like a steam was being released.” He further
says that “[t]he third time they sprayed was fatal for [their] community” as “this time they
crossed to Ecuadorian territory, Awá territory.” 292

The witness provides no description of time or place; the statem ent reads more as an

opinion than a testimony. However, since he claims that the first time was in 2002 the
closest lines to Mataje Alto in that year have been analysed. Figure 23 shows that the

closest spray events were conducted at distances of between 6.3 and nearly 7 km from the
location of Mataje Alto , and yet the witness claims that he “saw three planes and a

helicopter. At the distances involved, none of the alleged effects on plants and crops could
have been caused in Ecuador. The falsehood is evident.

This was also confirmed by Dr Hewitt who modeled the closest event s and estimated
293
downwind deposition values of 0.08 g/ha and 0.14 g/ha, respectively. Since the level of
concern for amphibians, the most sensitive animal species according to Ecuador, is 1,368
294
g/ha; and between 36 and 1,958 g/ha for various crops , no damage could have been
caused in Ecuador.

The statement’s script-like structure is also quite clear from the following assertions:

• Alleged impacts on human health:

− Serious skin irritation/itching and bumps. “Some people also had spots on their
skin.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “A few
days later, I was working at the health post, it was morning and three children

came in sick with diarrhea, v omiting, high fever, and stomach ache.” “ After a
few days, the adults started coming in with fever, vomiting, headache, diarrhea

and stomachache.”

292
293 EM, Vol. IV, Annex 223.
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , row
55 and 46.
294 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 254• Loss of crops, and plants turning yellow. “From the first time they sprayed, our food

supply was affected. By the third spraying, we no longer had anything to eat, not
from the domestic crops nor from the plants in the mountain. The majority of the
plants were either sick or dead.” “Since 2002, the plants began to get sick, the

leaves were yellowish and had spots, as if they were burned. They would dry up and
fall off, and we did not know why. The plant would not develop, there was a growth
delay and there was hardly any production.” “ It was probably five days later that

some hectares of the natural forest, near the Mataje River, died. Three days later the
plants began to dry up and fall off, as if they were burned. The leaves fell off the

plants and all the branches died. All the plants, big and small, were destroyed.
Several species of wild plants that were in that hectare died.”
• Effects on soil and subsequent loss of productivity measured in quintals.

• He/she had never experienced anything similar before. “We were concerned
because everyone exhibited the same symptoms, which we had never seen before .”

“The plant would not develop, there was a growth delay and there was hardly any
production. We had never seen this before.” “The mojarras had on their tail and fins
hard tiny bumps, and their eyes also looked pale. We thought that was very strange,

we had never seen anything like it before.”
• Final dramatic statements. “ As a result of the damages to health, nature, and our

sources of food and spirituality, some people had to move to other Awá
communities within the reserve, which were farther from the border and not
affected by the sprayings. They made this decision in order to avoid health problems

caused by the fumigations and the death of their crops, because they no longer had
the means to survive.”

Appendix page 255Appendix page 256 Witness 41

(EM, Vol. IV, Annex 224)

Appendix page 257 1°16'N 1°14'N 1°12'N

km
3

78°30'W 78°30'W
2.5

2

1.5
theSrpivthaewInatknal boundary

1
SpraIyinrenational boundary

Projection: UTM zone 17; Datum: WGS-84
0.5

0

DisDistancetrouterTearla:31)i9a0bank on
DisDistanbctroeutrjTarboa308)a0nbank on ia
78°32'W M 78°32'W
Río

Mataje Alto

ECUADOR

AWA RESERVE

78°34'W 78°34'W

PERU

COLOMBIA COLOMBIA

j
a
M
R

78°36'W 78°36'W
ECUADOR
PACIFIC

1°16'N 1°14'N 1°12'N Figure 23. Awa-Mataje Alto, Spray Lines in 2002 (Witnesses 40-41)

Appendix page 258 Mataje Alto, 2002 (Witness 41)

Metadata of the closest spray lines

ATTRIBUTE TABLE OF THE CLOSEST SPRAY LINE TO MATAJE ALTO IN 2002 (Witness 41)
FID SEGFILE_NAMEISSIOSNIDELINESTART_TIMLEATITUDELONGALTITUDEPFLT_TIFLET_LENGOTTHSPEEDVOLUM AREEA LOG LENGTMHONTSWATAHIRCRACFRTOPA_C_CROP

5051 66 E142Q4AC 99-R2ight45 1.258086-788.56322659230 0,770 0 0 21,900208,3002,800 0 E142Q41A7C3,0205 85 OV-10CocaOV-10_Coca
PARAMETER1S4 May 2002 NO REGISTRA FEET MILES/HOUR
ADDED ATTRIBUTES

Spray Line AltitudeGround Altitude Spray Line Altitude over
overMSL(Metres) overMSL(Metres) Ground Level (Metres)
211 171 40
Attribute Table 30

ATTRIBUTE TABLE OF THE SECOND CLOSEST SPRAY LINE TO MATAJE ALTO IN 2002 (Witness 41)
FID SEGFILE_NAMEISSIOSNIDELINESTART_TIMLEATITUDELONGALTITUDEPFLT_TIFLET_LENGOTTHSPEEDVOLUM AREEA LOG LENGTMHONTSWATAHIRCRACFRTOPA_C_CROP
5085 101 E142SGAC 99-R2ight62 1.253644-758.55533792935 0,770 0 0 31,700197,1002,500 0 E142SG1A2C3,0205 85 OV-10CocaOV-10_Coca

PARAMETE1 RSMay 2002 NO REGISTRA FEET MILES/HOUR

ADDED ATTRIBUTES
Spray Line AltitudeGround Altitude Spray Line Altitude over
over MSL (Metres) over MSL (Metres) Ground Level (Metres)
220 183 37

Attribute Table 31

MATAJE ALTO:

Distance of the two closest spray lines to Mataje Alto location: 6890 metres and 6390

metres.

Distance to the Ecuadorian bank on the border river: 1430 metres and 970 metres,

respectively.

Hewitt modeled these events and estimated deposition values of 0.08 g/ha and 0.14 g/ha,

respectively. 295 The level of concern for amphibians, the most sensitive animal species

according to Ecuador, is 1,368 g/ha; and between 36 and 1,958 g/ha for various crops. 296

This shows that no damage could have been caused in Ecuador.

295
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4 -5, Table of Model Results , rows
55 and 46.
296
See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2 011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 259 Witness 41:

The witness states that he was raised in Mataje Alto and he has always lived there: “I
remember particularly that in the year two thousand and two we were affected by the

sprayings. That first day, I was in school and I heard the planes and helicopters, which they
[sic] arrived a few minutes later. Since I was a fifteen year -old boy, I was curious and I

came out of the school to see them. I saw about three planes, accompanied by some
helicopters. They were coming from Colombia and turning around over Awá territory on
297
the Ecuadorian side.”

The events shown in Figure 23 were the sprayings in 2002 near the witness’slocation. All
of them are on Colombian territory, at distances of between 6.3 and nearly 7 km from the
location of Mataje Alto, and yet the witness claims that the praying caused effects on plants

and crops. The falsehood is evident.

Hewitt further confirmed this after modeling the closest event s and estimating downwind
deposition values of 0.08 g/ha and 0.14 g/ha, respective ly. 298 The level of concern for

amphibians, the most sensitive animal species according to Ecuador, is 1,368 g/ha; and
between 36 and 1,958 g/ha for various crops. 299 This shows that no damage could have

been caused in Ecuador.

The witness also adheres to his script in the following fashion:

• Alleged impacts on human health:
− Serious skin irritation/itching and bumps. “Some of the people in the community

had bumps all over their bodies.” “Also, some of them had white spots on their
skin and hives. Even I had some white spots on my arms.”

− Eye burning/Chiefly on children, headaches, vomit, fever and diarrhea. “People
also suffered from headaches, stomach aches and vomiting.”

• Loss of crops, and plants turning yellow. “The healers said that the lengua de vaca
and other medicinal plants died in the sprayed sector of the forest.” “After the

sprayings, all the crops began to dry up. They turned yellow two or three days after
the sprayings. The leaves of the sugarcane became withered and they fell off. The

yucca leaves also withered, and the maize completely died within a week after the
sprayings. “[A]fter the sprayings we lost several crops such as maize.”

297
298 EM, Vol. IV, Annex 224.
CR, Vol. II, Annex 2: Hewitt Spray Events Modeling (2011), pp. 4- 5, Table of Model Results , rows
55 and 46.
299 See CR, Vol. II, Annex 1: Hewitt Report – Response to Giles (2011), para. 8, p. 5; see also CCM,
Vol. III, Annex 131-B, p. 330.

Appendix page 260• Effects on soil and subsequent loss of productivity measured in quintals. “After the

spraying, people planted again but the land no longer produced as before. It affected
almost all of the produce; to this day, the crops do not produce as before.”
• Alleged impacts on animals. “ After the spraying, many of the chickens that we

raised became sick, they would not walk but r ather remained seated, and within a
few days some of them died. The chicks either remained small or did not survive.

We also raised some ducks that either got sick or died.” “When we went to the
primary forest to hunt after the spraying, we […] saw some de ad animals such as
deer, guatin and sloth.”

• He/she had never experienced anything similar before. With regard to the alleged
bumps: “It was strange, I had not seen that before.” With regard to the animals

allegedly found dead in the forest: “I was very surprised to see these animals dead.”
• Final dramatic statements.

Appendix page 261 LIST OF ANNEXES

VOLUME II

SCIENTIFIC AND TECHNICAL EXPERT REPORTS

Annex 1 Dr A.J. Hewitt, Ph.D., Response to Report
“Spray Drift Modeling of Conditions of
Application for Coca Crops in Colombia by D.K.

Giles, Jan. 2011”, Nov. 2011.

Annex 2 Dr A.J. Hewitt, Ph.D., Aerial Spray Drift
Modeling of Plan Colombia Applications , Nov.
2011.

Annex 3 Dr K.R. Solomon, Ph.D., Expert Report of Keith

R. Solomon on Behalf of Colombia, Nov. 2011.

Annex 4 Dr S. Dobson, OBE Ph.D., Response to Scientific
Papers in Annexes to Volume II of Ecuador’s
Reply (2011), Dec. 2011.

Annex 5 A. Tait, International Mapping Associates,

Statistical Summary of Data for Spray Events
Within the Relevant Area Along the Border
between Colombia and Ecuador, Dec. 2011.

Annex 6 Dr B. M. Evans, Ph.D., Expert Report by Dr.
Barry M. Evans, Dec. 2011.

Annex 7 Colombian Expert on Environmental Law, Mr

José Vicente Zapata, Critique of the Report
Prepared by Ms. Claudia Rojas Quiñonez dated
January 2011 on ‘The Aerial Spray Program and
Violations of Colombia’s Domestic Laws
Regarding The Environment And The Rights Of
Indigenous Peoples’, Nov. 2011. LIST OF ANNEXES

VOLUME II

SCIENTIFIC AND TECHNICAL EXPERT REPORTS

Annex 1 Dr A.J. Hewitt, Ph.D., Response to Report
“Spray Drift Modeling of Conditions of
Application for Coca Crops in Colombia by D.K.

Giles, Jan. 2011”, Nov. 2011.

Annex 2 Dr A.J. Hewitt, Ph.D., Aerial Spray Drift
Modeling of Plan Colombia Applications , Nov.
2011.

Annex 3 Dr K.R. Solomon, Ph.D., Expert Report of Keith

R. Solomon on Behalf of Colombia, Nov. 2011.

Annex 4 Dr S. Dobson, OBE Ph.D., Response to Scientific
Papers in Annexes to Volume II of Ecuador’s
Reply (2011), Dec. 2011.

Annex 5 A. Tait, International Mapping Associates,

Statistical Summary of Data for Spray Events
Within the Relevant Area Along the Border
between Colombia and Ecuador, Dec. 2011.

Annex 6 Dr B. M. Evans, Ph.D., Expert Report by Dr.
Barry M. Evans, Dec. 2011.

Annex 7 Colombian Expert on Environmental Law, Mr

José Vicente Zapata, Critique of the Report
Prepared by Ms. Claudia Rojas Quiñonez dated
January 2011 on ‘The Aerial Spray Program and
Violations of Colombia’s Domestic Laws
Regarding The Environment And The Rights Of
Indigenous Peoples’, Nov. 2011.

765 OTHER EXPERT REPORTS

Annex 8 Expert Report of Dr G. Marcella, Ph.D. on behalf
of the DynCorp Defendants in Arias/Quinteros v.
DynCorp (D.D.C.), Jan. 2011.

Annex 9 Expert Report of Dr J.M. Di Tomaso, Ph.D.
prepared for the Dyncorp Defendants in
Arias/Quinteros v. Dyncorp (D.D.C.), Jan. 2011.

Annex 10 Expert Report of Dr K.R. Solomon, Ph.D. on
Behalf of the Defendants in Arias/ Quinteros v.
Dyncorp, Jan. 2011.

Annex 11 Expert Report of Dr A. Atalay, Ph.D., CPSS,
prepared for the Defendants in Arias/Quinteros v.

Dyncorp (D.D.C.), Jan. 2011.

Annex 12 Expert Report of Dr J.P. Giesy, Ph.D. on Behalf
of the Defendants in Arias/Quinteros v. Dyncorp,
Jan. 2011.

Annex 13 Expert Report of Dr R.D. Smalligan, M.D.,

M.P.H., prepared for the Defendants in
Arias/Quinteros v. Dyncorp (D.D.C.), Jan. 2011.

Annex 14 Expert Report of Dr R.C. Ploetz, Ph.D. on Behalf
of the Defendants in Arias/Quinteros v. Dyncorp,
Jan. 2011.

Annex 15 Expert Report of Dr R.I. Krieger, Ph.D. prepared

for the Defendants in Arias/Quinteros v. Dyncorp
(D.D.C.), Jan. 2011.

Annex 16 Expert Report of Dr G.M. Williams , M.D. on
Behalf of the Defendants in Arias/Quinteros v.
Dyncorp, Jan. 2011.

766 OTHER EXPERT REPORTS

Annex 8 Expert Report of Dr G. Marcella, Ph.D. on behalf
of the DynCorp Defendants in Arias/Quinteros v.
DynCorp (D.D.C.), Jan. 2011.

Annex 9 Expert Report of Dr J.M. Di Tomaso, Ph.D.
prepared for the Dyncorp Defendants in
Arias/Quinteros v. Dyncorp (D.D.C.), Jan. 2011.

Annex 10 Expert Report of Dr K.R. Solomon, Ph.D. on
Behalf of the Defendants in Arias/ Quinteros v.
Dyncorp, Jan. 2011.

Annex 11 Expert Report of Dr A. Atalay, Ph.D., CPSS,
prepared for the Defendants in Arias/Quinteros v.

Dyncorp (D.D.C.), Jan. 2011.

Annex 12 Expert Report of Dr J.P. Giesy, Ph.D. on Behalf
of the Defendants in Arias/Quinteros v. Dyncorp,
Jan. 2011.

Annex 13 Expert Report of Dr R.D. Smalligan, M.D.,

M.P.H., prepared for the Defendants in
Arias/Quinteros v. Dyncorp (D.D.C.), Jan. 2011.

Annex 14 Expert Report of Dr R.C. Ploetz, Ph.D. on Behalf
of the Defendants in Arias/Quinteros v. Dyncorp,
Jan. 2011.

Annex 15 Expert Report of Dr R.I. Krieger, Ph.D. prepared

for the Defendants in Arias/Quinteros v. Dyncorp
(D.D.C.), Jan. 2011.

Annex 16 Expert Report of Dr G.M. Williams , M.D. on
Behalf of the Defendants in Arias/Quinteros v.
Dyncorp, Jan. 2011. VOLUME III

Annex 20 National Narcotics Directorate (DNE),

Environmental Management Plan (EMP)
Eradication of Illicit Crops, Chapter VII,
Identification and Assessment of Environmental
Impact, 30 Oct. 1998.

Annex 21 National Narcotics Directorate (DNE),
Environmental Impact of Illicit Coca Crops and

their Eradication by Aerial Spraying with
Glyphosate in the Bio -geographical Region of
the Colombian Amazon and Orinoco Basins ,
Dec.1994.

Annex 22 Colombian Law 30 of 1986.

Annex 23 Colombian Law 99 of 1993.

Annex 24 Note from the Minister for the Environment, Mr.
Juan Mayr Maldonado, to the Secretary General
of the Colombian Senate, 10 Aug. 2001.

Annex 25 Note N° 0001-1-928 of 17 August 2001 from the

Ombudsman requesting a public hearing to the
Minister for the Environment on the Program for
the Eradication of Illicit Crops by Aerial
Spraying with Glyphosate, and the corresponding
minutes of the hearing, 24 Aug. 2001.

Annex 26 Note N° 01888 from the National Narcotics
Directorate (DNE), Appeal submitted by DNE,

of Order 599 of 1999 from the Ministry for the
Environment, 1 Feb. 2000.

Annex 27 Council of State of Colombia, Chamber of
Contentious Administrative Affairs, Order of 1 5
Aug. 1995.

Annex 28 National Narcotics Council, Minute s N° 01 of 8
Mar. 1996.

768 VOLUME III

Annex 20 National Narcotics Directorate (DNE),

Environmental Management Plan (EMP)
Eradication of Illicit Crops, Chapter VII,
Identification and Assessment of Environmental
Impact, 30 Oct. 1998.

Annex 21 National Narcotics Directorate (DNE),
Environmental Impact of Illicit Coca Crops and

their Eradication by Aerial Spraying with
Glyphosate in the Bio -geographical Region of
the Colombian Amazon and Orinoco Basins ,
Dec.1994.

Annex 22 Colombian Law 30 of 1986.

Annex 23 Colombian Law 99 of 1993.

Annex 24 Note from the Minister for the Environment, Mr.
Juan Mayr Maldonado, to the Secretary General
of the Colombian Senate, 10 Aug. 2001.

Annex 25 Note N° 0001-1-928 of 17 August 2001 from the

Ombudsman requesting a public hearing to the
Minister for the Environment on the Program for
the Eradication of Illicit Crops by Aerial
Spraying with Glyphosate, and the corresponding
minutes of the hearing, 24 Aug. 2001.

Annex 26 Note N° 01888 from the National Narcotics
Directorate (DNE), Appeal submitted by DNE,

of Order 599 of 1999 from the Ministry for the
Environment, 1 Feb. 2000.

Annex 27 Council of State of Colombia, Chamber of
Contentious Administrative Affairs, Order of 1 5
Aug. 1995.

Annex 28 National Narcotics Council, Minute s N° 01 of 8
Mar. 1996. VOLUME IV

Annex 34 Ministry for the Environment, Technical Opinion

N° 1059, 24 Sep. 2003.

Annex 35 Ministry of Health, Toxicological Opinion N° LP
– 0173 – 93, 2 Apr. 1993; Toxicological Opinion
N° MP – 12118 – 2001, 5 Nov. 2001;
Toxicological Opinion N° LP – 12499 – 2002,
29 Apr. 2002.

Annex 36 Note N° SPD 338 from the Colombian
Agriculture and Livestock Inst itute to the
Ministry for the Environment enclosing water
samples analysis results from Catatumbo region,
18 July 2002.

Annex 37 Note N° 00118, from the Colombian Agriculture
and Livestock Institute to the National Narcotics
Directorate enclosing water samples ana lysis
results from Caquetá region, 10 Jan. 2003.

Annex 38 Records of Water Samples Analys es Results
2005-2007 in the framework of the Program for

the Eradication of Illicit Crops by Aerial
Spraying with Glyphosate (PECIG).

Annex 39 Records of Soil Samples Analyses Results 2005-
2008 in the framework of the Program for the
Eradication of Illicit Crops by Aerial Spraying
with Glyphosate (PECIG).

Annex 40 Note N° 2400-2.139140 from the Ministry for
the Environment and Sustainable Development,
to the Ministry of Foreign Affairs of Colombia,
enclosing the List of Orders issued by the
Ministry for the Environment regarding control
and follow up of the Environmental Management
Plan of the Program for the Eradication of Illicit

Crops by Aerial Spraying with Glyphosate
(PECIG), 3 Nov. 2011.

770 VOLUME IV

Annex 34 Ministry for the Environment, Technical Opinion

N° 1059, 24 Sep. 2003.

Annex 35 Ministry of Health, Toxicological Opinion N° LP
– 0173 – 93, 2 Apr. 1993; Toxicological Opinion
N° MP – 12118 – 2001, 5 Nov. 2001;
Toxicological Opinion N° LP – 12499 – 2002,
29 Apr. 2002.

Annex 36 Note N° SPD 338 from the Colombian
Agriculture and Livestock Inst itute to the
Ministry for the Environment enclosing water
samples analysis results from Catatumbo region,
18 July 2002.

Annex 37 Note N° 00118, from the Colombian Agriculture
and Livestock Institute to the National Narcotics
Directorate enclosing water samples ana lysis
results from Caquetá region, 10 Jan. 2003.

Annex 38 Records of Water Samples Analys es Results
2005-2007 in the framework of the Program for

the Eradication of Illicit Crops by Aerial
Spraying with Glyphosate (PECIG).

Annex 39 Records of Soil Samples Analyses Results 2005-
2008 in the framework of the Program for the
Eradication of Illicit Crops by Aerial Spraying
with Glyphosate (PECIG).

Annex 40 Note N° 2400-2.139140 from the Ministry for
the Environment and Sustainable Development,
to the Ministry of Foreign Affairs of Colombia,
enclosing the List of Orders issued by the
Ministry for the Environment regarding control
and follow up of the Environmental Management
Plan of the Program for the Eradication of Illicit

Crops by Aerial Spraying with Glyphosate
(PECIG), 3 Nov. 2011. Annex 41-E: Audit to the Program for the
Eradication of Illicit Crops by Aerial Spraying
with Glyphosate Herbicide , Report No. 3.

Audited period: 19 Dec. 2006 to 18 Jan. 2007 ,
Jan. 2007.

Annex 42 Note N° 3111-2-14218 from the Ministry for the
Environment in response to Note 10945 of 22
July 1998 from the National Narcotics
Directorate (DNE), 28 July 1998.

Annex 43 Minutes and Orders of prior consultation
processes with indigenous communities, in
compliance with t he Colombian Constitutional
Court’s ruling SU-0383.

ECUADORIAN OFFICIAL DOCUMENTS

Annex 44 Ecuadorian Foreign Ministry Court Filing N°
937-2004, 22 Oct. 2004.

Annex 45 Commission on Transparency and Truth for the
Angostura Case, Report, Quito, Dec. 2009.

UNITED STATES OFFICIAL DOCUMENTS

Annex 46 United States Embassy in Bogot á, Certification
with regard to pilots’ training, from the NAS
Director, James B. Story, to the Colombian
Ministry of Foreign Affairs, 27 Sep. 2011.

Annex 47 United States Interagency Committee for
Aviation Policy, Aviation Resource Management
Survey Team, Evaluative Arms Report of the
United States Department of State Bureau for
International Narcotics and Law Aviation
Division, Conducted August 24 through

September 2, 1998, Document A2A, 3 Sep.
1998.

772 Annex 41-E: Audit to the Program for the
Eradication of Illicit Crops by Aerial Spraying
with Glyphosate Herbicide , Report No. 3.

Audited period: 19 Dec. 2006 to 18 Jan. 2007 ,
Jan. 2007.

Annex 42 Note N° 3111-2-14218 from the Ministry for the
Environment in response to Note 10945 of 22
July 1998 from the National Narcotics
Directorate (DNE), 28 July 1998.

Annex 43 Minutes and Orders of prior consultation
processes with indigenous communities, in
compliance with t he Colombian Constitutional
Court’s ruling SU-0383.

ECUADORIAN OFFICIAL DOCUMENTS

Annex 44 Ecuadorian Foreign Ministry Court Filing N°
937-2004, 22 Oct. 2004.

Annex 45 Commission on Transparency and Truth for the
Angostura Case, Report, Quito, Dec. 2009.

UNITED STATES OFFICIAL DOCUMENTS

Annex 46 United States Embassy in Bogot á, Certification
with regard to pilots’ training, from the NAS
Director, James B. Story, to the Colombian
Ministry of Foreign Affairs, 27 Sep. 2011.

Annex 47 United States Interagency Committee for
Aviation Policy, Aviation Resource Management
Survey Team, Evaluative Arms Report of the
United States Department of State Bureau for
International Narcotics and Law Aviation
Division, Conducted August 24 through

September 2, 1998, Document A2A, 3 Sep.
1998. Annex 53-C: Department of State Memorandum
of Justification Co ncerning the Secretary of
State’s 2004 Certification of Conditions Related
to Aerial Eradication of Illicit Coca and Opium

Poppy in Colombia, 2004.

Annex 53 -D: Department of State Information
Package on the Certification of the Ae rial
Eradication of Illicit Coca and Opium Poppy in
Colombia, 2005.

Annex 53 -E: Department of State Information
Package on the Certification of the Aerial
Eradication of Illicit Coca and Opium Poppy in
Colombia, 2006.

Annex 53-F: Department of State Memorandum
of Justification Concerning the Secretary of

State’s 2007 Certification of Conditions Related
to Aerial Eradication of Illicit Coca in Colombia,
2007.

Annex 53-G: Department of State Memorandum
of Justification Concerning the Secretary of
State’s 2008 Certification of Conditions Related

to Aerial Eradication of Illicit Coca in Colombia,
2008.

Annex 54 United States Environmental Protection Agency
(EPA), Office of Pesticide Programs. Details of
the 2003 Consultation for the Department of
State. Use of Pesticide for Coca and Poppy
Eradication Program in Colombia, June 2003.

Annex 55 Note from the Environmental Protection Agency
(EPA) to the United States Embassy in
Colombia, enclosing answers and bibliography
of studies on glyphosate herbicide, 23 Sep. 2011.

774 Annex 53-C: Department of State Memorandum
of Justification Co ncerning the Secretary of
State’s 2004 Certification of Conditions Related
to Aerial Eradication of Illicit Coca and Opium

Poppy in Colombia, 2004.

Annex 53 -D: Department of State Information
Package on the Certification of the Ae rial
Eradication of Illicit Coca and Opium Poppy in
Colombia, 2005.

Annex 53 -E: Department of State Information
Package on the Certification of the Aerial
Eradication of Illicit Coca and Opium Poppy in
Colombia, 2006.

Annex 53-F: Department of State Memorandum
of Justification Concerning the Secretary of

State’s 2007 Certification of Conditions Related
to Aerial Eradication of Illicit Coca in Colombia,
2007.

Annex 53-G: Department of State Memorandum
of Justification Concerning the Secretary of
State’s 2008 Certification of Conditions Related

to Aerial Eradication of Illicit Coca in Colombia,
2008.

Annex 54 United States Environmental Protection Agency
(EPA), Office of Pesticide Programs. Details of
the 2003 Consultation for the Department of
State. Use of Pesticide for Coca and Poppy
Eradication Program in Colombia, June 2003.

Annex 55 Note from the Environmental Protection Agency
(EPA) to the United States Embassy in
Colombia, enclosing answers and bibliography
of studies on glyphosate herbicide, 23 Sep. 2011. VOLUME VI

UNITED NATIONS DOCUMENTS

Annex 60 United Nations Office on Drugs and Crime
(UNODC), Colombia Coca Cultivation survey
2010, June, 2011, pp. 16, 26, 30, 31 and 73.

OTHER DOCUMENTS

Annex 61 Decision N° 486 of the Commission of the
Cartagena Agreement on the Common
Provisions on Industrial Property, Art. 260, 14
Sep. 2000.

Annex 62 Document 148, Dyncorp Case No.

1:07CV01042(RWR), United States District
Court for the District of Columbia, 18 Sep. 2009.

Annex 63 Acción Ecológica, Report on the Investigation of
the Fumigations’ Impacts on the Ecuadorian
Border (June 2001), p. 3 (Page not included
either in the Annex 161 of EM Vol. IV, or in the

original annexes).

Annex 64 Organismo Andino de Salud, Hipolito Hunanue
Agreement, Analysis of Health Situation in the
Border, P acific/Andean Corridors
Nariño/Tulcán - San Lorenzo (Colombia -
Ecuador), 2009.

Annex 65 Pineda-Medina, Juan and Naizot, Anne -Lise/
FLACSO-Ecuador, Social impact study of
territorial threats in Guadualito and Balsareño
villages, Awa Territory. Advances in the
environmental impact study in Guadualito and
Balsareño.

776 VOLUME VI

UNITED NATIONS DOCUMENTS

Annex 60 United Nations Office on Drugs and Crime
(UNODC), Colombia Coca Cultivation survey
2010, June, 2011, pp. 16, 26, 30, 31 and 73.

OTHER DOCUMENTS

Annex 61 Decision N° 486 of the Commission of the
Cartagena Agreement on the Common
Provisions on Industrial Property, Art. 260, 14
Sep. 2000.

Annex 62 Document 148, Dyncorp Case No.

1:07CV01042(RWR), United States District
Court for the District of Columbia, 18 Sep. 2009.

Annex 63 Acción Ecológica, Report on the Investigation of
the Fumigations’ Impacts on the Ecuadorian
Border (June 2001), p. 3 (Page not included
either in the Annex 161 of EM Vol. IV, or in the

original annexes).

Annex 64 Organismo Andino de Salud, Hipolito Hunanue
Agreement, Analysis of Health Situation in the
Border, P acific/Andean Corridors
Nariño/Tulcán - San Lorenzo (Colombia -
Ecuador), 2009.

Annex 65 Pineda-Medina, Juan and Naizot, Anne -Lise/
FLACSO-Ecuador, Social impact study of
territorial threats in Guadualito and Balsareño
villages, Awa Territory. Advances in the
environmental impact study in Guadualito and
Balsareño.

Document Long Title

Rejoinder of Colombia

Links