SUMMARY ORAL PROCEEDING , MARÍA AGUINDA ET AL. VS. CHEVRON-TEXACO, NUEVA LOJA SUPERIOR COURT JUDICIAL INSPECTION OF THE SHUSHUFINDI 48 WELL

Transcription

1 [handwritten] 52,205 Fifty-two thousand two hundred five[initials] SUMMARY ORAL PROCEEDING , MARÍA AGUINDA ET AL. VS. CHEVRON-TEXACO, NUEVA LOJA SUPERIOR COURT JUDICIAL INSPECTION OF THE SHUSHUFINDI 48 WELL PRESIDENT OF THE NUEVA LOJA SUPERIOR COURT: I, Charles Calmbacher, Ph.D., CIH, acting in my capacity as Court-appointed expert for the Judicial Inspection of the site designated as the Shushufindi 48 well, hereby submit within the specified time this attachment to the Expert Report for the aforesaid proceeding. [signature] Dr. Charles Calmbacher, Ph.D., CIH [stamp] The American Board of Industrial Hygiene Charles William Calmbacher, Ph Incorporated Pennsylvania 1960 Cert. No CP [Rectangular filing stamp] SUPERIOR COURT OF JUSTICE OF NUEVA LOJA OFFICE OF THE PRESIDENT - RECEIVED in Nueva Loja on March 8, 2005, at 12:00 p.m. -- copies and 65 pages attached [signature] CLERK DEPOSITION EXHIBIT Calmbacher 13 PLAINTIFF S EXHIBIT Civ (LAK) CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] TRANS_CVX-RICO Plaintiff's Exhibit 250 p. 1 of 133

2 [handwritten] 52,206 Fifty-two thousand two hundred six[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 CONTENTS 1. SUMMARY 1.1 COURT PROCEEDING 1.2 SITE DESCRIPTION 1.3 WORK PERFORMED 2. RESULTS 2.1 PIT GEOLOGY STUDY LABORATORY 2.2 PIT GEOLOGY STUDY LABORATORY 2.3 PIT SH48-SE4 BOREHOLE GEOLOGY STUDY SH8-SE4 BOREHOLE GEOLOGY STUDY LABORATORY 2.4 DRILLING MUD PITS GEOLOGY STUDY LABORATORY 2.5 TECHNICAL EVALUATION OF THE APPROVAL-ACCEPTANCE CERTIFICATES AND RESULTS OF WATER AND SOIL ANALYSES LABORATORY RESULTS FOLLOWING REMEDIATION OF WATER COMPARED TO NATIONAL LEGISLATION IN EFFECT ON THE DATE OF REMEDIATION 1 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 2 of 133

3 [handwritten] 52,207 Fifty-two thousand two hundred seven[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL CONCLUSIONS 3.1 GEOLOGY STUDY 3.2 AERIAL PHOTOGRAPH ANALYSIS 3.3 REMEDIATION METHOD AND LABORATORY CERTIFICATES 3.4 LABORATORY 3.5 REMEDIATION COSTS 3.6 QUESTIONS FROM THE PARTIES 4. EXHIBITS 4.1 CESAQ-PUCE LABORATORY REPORTS 4.2 CHAINS OF CUSTODY 5. MAPS Map 1: Geographical Location Map 2: Access to Shushufindi Map 3: Aerial photograph from 1976 Map 4: Aerial photograph from 1985 Map 5: Aerial photograph from 1990 Map 6: Hydrographic system 2 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 3 of 133

4 [handwritten] 52,208 Fifty-two thousand two hundred eight[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL TABLES Table 1: Final report on drilling mud materials Table 2: Chemicals used in the Shushufindi 48 workover Table 3: Laboratory results and comparison with national environmental laws in effect Table 4: Stratigraphic column at point SW3 Table 5: Laboratory results and comparison with national environmental laws in effect Table 6: Stratigraphic column at drilling point SE4 of pit 4 Table 7: Stratigraphic column at drilling point SE3 of pit 4 Table 8: Laboratory results of soil samples from pit 4 and comparison with national environmental laws in effect Table 9: Laboratory results and comparison with national environmental laws in effect Table 10: Laboratory results and comparison with national environmental laws in effect Table 11: Laboratory results reported by TEXACO Table 12: Laboratory results reported by TEXACO Table 13: Laboratory results reported by TEXACO 3 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 4 of 133

5 [handwritten] 52,209 Fifty-two thousand two hundred nine[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL FIGURES Figure 1: Soil contamination with TPH in pit 1 SH48-NE2 Figure 2: Soil contamination with TPH in pit 3 SH48-SW3 Figure 3: Soil contamination with TPH in pit 3 SH48-SW2 Figure 4: Soil contamination with TPH in pit 4 SH48-SE3 Figure 5: Soil contamination with TPH in pit 4 SH48-SE3 Figure 6: Soil contamination with TPH in pit 4 SH48-SE3 Figure 7: Soil contamination with TPH in pit 4 SH48-SE4 Figure 8: Water contamination with barium in pit 4 Figure 9: Water contamination with copper in pit 4 Figure 10: Water contamination with nickel in pit 4 Figure 11: Water contamination with lead in pit 4 Figure 12: Water contamination with chrome VI in pit 4 Figure 13: Water contamination with phenolic compounds Figure 14: Water contamination with nickel Figure 15: Water contamination with phenolic compounds Figure 16: Water contamination with nickel Figure 17: Water contamination with phenolic compounds Figure 18: Water contamination with nickel 4 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 5 of 133

6 [handwritten] 52,210 Fifty-two thousand two hundred ten[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL SUMMARY 1.1 COURT PROCEEDING The judicial inspection for the summary oral proceeding [sic] was conducted at the site called SHUSHUFINDI 48 WELL, La Victoria parish, Shushufindi canton, Sucumbíos province, on 2 September I acted as the expert in this proceeding by appointment of the President of the Nueva Loja Superior Court. According to the provisions set forth by the Judge, as contained in the Judicial Inspection Document, I am writing this report in response to the questions of the Judge and the parties and to submit my technical conditions with reference to the current national and international legislation and on the cradle-to-grave principle, i.e., whoever causes environmental contamination is responsible for it forever. 1.2 SITE DESCRIPTION The SHUSHUFINDI 48 well has the following geographical location (Map 1): The site is located approximately 200 km northeast of Quito. Location: Shushufindi Field Parish: La Victoria Canton: Shushufindi Province: Sucumbíos 5 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 6 of 133

7 [handwritten] 52,211 Fifty-two thousand two hundred eleven[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 Map 1: GEOGRAPHICAL LOCATION, Eruador,.. "~ I. ~ _ c~',. ~' -~~> '"', 'I~ '~'"i _ ',.,'.rw "-.. " ",.~-~. "-:y.--..,~_~ '\ '" -" -... Dm ~ SUQJ1T1bf", Km S) 0 ~ ldo Kbniw. Ubitacion Geogr6fica Provincia de Sucumbiol Canton Shushufindi Parroquia Shushufindi Porroquia.. Shushufindi Shwhufindi to KAon.t.n." 0. Umite provincial Limite cantonal CcmaleJ Cuyalwto Con~1o Pizarro Logo.JI.4no PutuinayO- Stlushuflndl ~ SU'cumbiol Parroqukl Linoncoclla. Pima(oc~a. -san ~dro de Los CofarMs ';N Ii San Roque (tob.en Son \/I,."le)1I Shuilluftndl Stete de ).IIG 6 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 7 of 133

8 [handwritten] 52,212 Fifty-two thousand two hundred twelve[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 ACCESSIBILITY. The city of Shushufindi is reached from Lago Agrio by an asphalt road, a journey of approximately 1½ hours. The city of Lago Agrio can be reached by air on a 30-minute flight or by an overland trip of approximately 8 hours (Map 2). Map 2: ACCESS TO SHUSHUFINDI 48 7 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 8 of 133

9 [handwritten] 52,213 Fifty-two thousand two hundred thirteen[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 PITS OPENED BY TEXACO AND LOCATION OF SAMPLING POINTS: The following aerial photographs provide a historical graphic analysis of the pits dug in the ground by TEXACO. The site of this Inspection is located around the platform of the Shushufindi 48 well where pits that received no remediation are located. AERIAL PHOTOGRAPH FROM 1976: It can be seen that TEXACO dug three pits in the ground (Nos. 1 and 3 according to TEXACO and 5, not reported by TEXACO). These pits are not sealed, which allows migration of contaminants into lower levels, thereby contaminating the soil and water. TEXACO discharged mud contaminated with crude, crude waste from production tests, and workover waste [into the pits]. (Map 3) Their geographical coordinates are shown on the geographical map from AERIAL PHOTOGRAPH FROM 1985: It can be seen that pit 1 was partially covered with vegetation, and pit 3 was entirely covered by earth and vegetation. TEXACO continued to discharge toxic waste into pits 1 and 5 (Map 4). AERIAL PHOTOGRAPH FROM 1990: In 1990 TEXACO dug two additional pits and used them, without sealing them, for discharging mud contaminated with crude, crude waste from production tests, and workover waste. A total of five pits were dug in the ground for discharging all of the toxic waste (Map 5). REMEDIATION: The technical information on the total amount of soil to be remediated is as follows: TOTAL AREA OF THE FIVE PITS = m² AVERAGE DEPTH: 4.95 meters (average depth of contamination according to stratigraphic profiles: 5.10 m; 3.94 m; 5.80 m) VOLUME OF CONTAMINATED SOIL: 26,033.4 m³ DENSITY OF MUD: 1.80 tons/m³ TOTAL AMOUNT TO BE REMEDIATED: 48,860 tons of contaminated soil 8 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 9 of 133

10 MAP 3: AERIAL PHOTOGRAPH FROM 1976 [handwritten] 52,214 Fifty-two thousand two hundred fourteen[initials] LEGEND Access routes Platforms Pits Samples LAYOUT OF MUD PITS FOR DISCHARGE OF PETROLEUM WASTE Based on aerial photograph No. 1246, roll 6 of 20 January 1976 Source: IGM It can be seen that TEXACO dug three pits in the ground (Nos. 1 and 3 according to TEXACO and 5, not reported by TEXACO). These pits are not sealed, which allows migration of contaminants into lower levels, thereby contaminating the soil and water. TEXACO discharged mud contaminated with crude, crude waste from production tests, and workover waste. 9 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 10 of 133

11 MAP 4: AERIAL PHOTOGRAPH FROM 1985 [handwritten] 52,215 Fifty-two thousand two hundred fifteen[initials] LEGEND Access routes Platforms Pits Samples LAYOUT OF MUD PITS FOR DISCHARGE OF PETROLEUM WASTE Based on aerial photograph No , roll 213 of 9 October 1985 Source: IGM It can be seen that pit 1 was partially covered with vegetation, and pit 3 was entirely covered by earth and vegetation. TEXACO continued to discharge toxic waste into pits 1 and CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 11 of 133

12 MAP 5: AERIAL PHOTOGRAPH FROM 1990 [handwritten] 52,216 Fifty-two thousand two hundred sixteen[initials] LEGEND Access routes Platforms Pits Samples LAYOUT OF MUD PITS FOR DISCHARGE OF PETROLEUM WASTE Based on aerial photograph No. 2950, roll 151 of 26 September 1990 Source: IGM In 1990 TEXACO dug two additional pits and used them, without sealing them, for discharging mud contaminated with crude, crude waste from production tests, and workover waste. A total of five pits were dug in the ground for discharging all of the toxic waste. TOTAL AREA OF THE FIVE PITS = m² 11 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 12 of 133

13 [handwritten] 52,217 Fifty-two thousand two hundred seventeen[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 Hydrographic system: The hydrographic system is within the Bajo Oriente area, which consists of a large, almost flat Amazon plain made up of flood plains from runoff of the Coca and Aguarico Rivers. Locally, the principal rivers flowing near the Shushufindi 48 well are: the La Sur River, located 800 m south, flows in an east-northeast direction; 250 meters to the east are the headwaters of a stream that flows to the northeast and into the La Sur River 2 km downstream in a northeasterly direction. Most of the streams around the Shushufindi 48 well flow into the La Sur River, which in turn flows into the Shushufindi River, a tributary of the Napo River, which in turn flows into the Amazon River. (Map 6) Map 6. HYDROGRAPHIC SYSTEM Populated area Wells Roads Rivers Climate and vegetation: The Shushufindi site is located on a large plain where there is heavy precipitation (ave mm), so the climate is very humid, with an average temperature of 27 C, relative humidity of 80%, in other words, a subtropical climate typical of the entire Ecuadorian Oriente region. 12 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 13 of 133

14 [handwritten] 52,218 Fifty-two thousand two hundred eighteen[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL WORK PERFORMED (Source: SHUSHUFINDI 48 file, Technical File, PETROPRODUCCIÓN Exploration and Development Department) Start of drilling: 15 March 1974 End of drilling: 29 April 1974 Drilling time: 12 days Total drilled depth: 9354 feet Formation: Napo EXPLORATION STAGE: Neither the PETROECUADOR files nor those of the National Hydrocarbons Bureau contain any reports on the methods and materials used during the exploration. DRILLING STAGE: Table 1 shows the chemicals and the amounts thereof used by TEXACO by drilling depth. Table 1: FINAL REPORT OF DRILLING MUD MATERIALS DEPTH NUMBER COST OF MUD MUD TYPE FROM TO ADDITIVES USED OF BAGS UNIT TOTAL (ft.) (ft.) GEL MILGEL CAUSTIC MILFLO GEL MILGEL CAUSTIC MILFLO GEL MILGEL CAUSTIC MILFLO CMC GEL MILGEL CAUSTIC MILFLO XCP CMC DEPTH ADDITIVES USED NUMBER COST OF MUD MUD TYPE FROM (ft.) TO (ft.) OF BAGS UNIT TOTAL GEL MILGEL CAUSTIC MILFLO 2-32 CMC XCP Bls. = barrels 13 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 14 of 133

15 [handwritten] 52,219 Fifty-two thousand two hundred nineteen[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 REPORT DURING PRODUCTION STAGE: Neither the PETROECUADOR files nor those of the National Hydrocarbons Bureau contain any reports on the procedures, methods and materials used during the production stage. CUMULATIVE PRODUCTION 1 Date: May 1987 Oil: 189,863 bbls Water: 1178 bbls Gas: 37,237 MPC CHEMICALS USED IN WORKOVERS: Table 2 identifies the chemicals used in the workovers. 1 SHUSHUFINDI 48 file, Technical File, PETROPRODUCCIÓN Exploration and Development Department 14 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 15 of 133

16 [handwritten] 52,220 Fifty-two thousand two hundred twenty[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 Date WO # Operation 9/24/79 01 Acidification of U & T sand. 1/29/80 02 Isolate entry of water by drilling below T sand. 10/13/81 03 Remove completion drill string. 5/29/85 04 Test intervals of Napo U & T. 5/8/86 05 Evaluate G2 sand, lower submergible electric Table 2: CHEMICALS USED IN WORKOVERS OF THE SHUSHUFINDI 48 WELL Test after Workover Cumulative Production Chemicals/materials used BS&A % BPPD RGP Oil (bbls) Water (bbls) Gas (MC) Name Amount No test performed. Dead Evaluation pending 98% 30 - Salt water Salt water JP-1 F-46 XT-47 SP bbls. 157 gal. 56 gal. 3 drums pump. 5/24/ Morflo II 8.5 #/gal. 1/18/ /1/ /11/88 09 Repair submergible electric pump. 9/4/88 10 Repair submergible electric pump. 2/17/90 11 Repair submergible electric pump. 30% % % Losurf 25% Source: SHUSHUFINDI 48 file, Technical File, PETROPRODUCCIÓN Exploration and Development Department FACILITIES: The inspection certificate issued at that time indicated the existence of the following equipment: wellhead, electric power poles and lines. 15 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 16 of 133

17 [handwritten] 52,221 Fifty-two thousand two hundred twenty-one[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 DRILLING EQUIPMENT AND SAMPLING METHODOLOGY A Standard Percussion Test drill bit was used, which uses a small drilling tower. In general, the equipment consists of the following components: Tripod (5 m high) Pulley with manila rope (12 m) 65 kg sledge hammer 8 HP gasoline engine Sample tube or spoons, 0.85 m long x 2" OD, for recovering undisturbed samples Guide rod and striking head An auger was also used for this Inspection. The drilling points were as follows: BOREHOLE SH48-SW3 SH48-SE4 SH48-SE3 SH48-N3 SH48-SE5 GEOGRAPHICAL COORDINATES LATITUDE LONGITUDE " S " W LATITUDE LONGITUDE " S " W LATITUDE LONGITUDE " S " W LATITUDE LONGITUDE " S " W LATITUDE LONGITUDE " S " W The local geological information was obtained by making three boreholes with the percussion drill and one boreholes with the auger during the Judicial Inspection. 16 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 17 of 133

18 [handwritten] 52,222 Fifty-two thousand two hundred twenty-two[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL RESULTS 2.1 PIT GEOLOGY STUDY TYPE OF SOIL OBSERVED. The soil consists of brown muddy clay strata mixed with roots but without any hydrocarbons odor; tree limbs; gray-colored muddy clay strata with a hydrocarbons odor mixed with tree limbs. Also seen to the bottom of the borehole, i.e., down to a depth of 2.0 m, are sections of gray-colored clay with a hydrocarbons odor. The water level in this pit was not reached. LITHOLOGICAL DESCRIPTION AT POINT SH48-N3: The following soil lithology was observed. Range of drilling depth Description of soil (m) 0.0 m 10 m [sic] Brown soil with vegetation and roots 0.1 m 1.0 m Brown muddy clay with tree limbs 1.0 m 1.17 m Section of gray-colored clay with hydrocarbons odor 1.17 m 1.78 m Brown muddy clay with sections of gray-colored clay with hydrocarbons odor and remains of trees 1.78 m 2.0 m Light brown muddy clay with sections of gray-colored clay with hydrocarbons odor LABORATORY LABORATORY ANALYSIS: Table 3 gives the results of the chemical analyses performed on the soil samples from pit 1. As indicated in paragraph 1.1, the following current laws were used as a reference: Unified Text of Environmental Legislation issued by Executive Decree No and published in the Official Gazette on 30 March 2003 Environmental Regulation for Hydrocarbons-related Operations in Ecuador, issued by Executive Decree No of 2 February 2001 and published in Official Gazette No. 265 on 13 February CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 18 of 133

19 [handwritten] 52,223 Fifty-two thousand two hundred twenty-three[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 Table 3: LABORATORY RESULTS AND COMPARISON WITH CURRENT NATIONAL ENVIRONMENTAL LEGISLATION (paragraph 1.1) SHUSHUFINDI 48 GEOGRAPHICAL COORDINATES: SH48-N3: LATITUDE " S LONGITUDE: " W Concentration unit: PIT 1 LEGISLATION EXCESS mg/kg SOIL Depth: meters SH48-N3 DECREE DECREE DECREE DECREE DATE OF INSPECTION METHOD /9/2004 No No No No ANALYSIS METALS Barium SM 3500 Ba < Cadmium USEPA 7000 <0.1 < 1 2 Copper USEPA Nickel USEPA < Zinc USEPA Lead USEPA < Chrome VI SM 3500 Cr < TOTAL PETROLEUM HYDROCARBONS (TPH) TPH 2700 < DRO EPA GRO EPA 8015 <50 BTEX Benzene EPA 8260 B < Toluene EPA 8260 B < Ethylbenzene EPA 8260 B < Xylene EPA 8260 B < POLYCYCLIC AROMATIC HYDROCARBONS (PAH) PAH < 1 < 1 Benzo(a)pyrene EPA 8270 < Benzo(b)fluoranthene EPA 8270 <0.5 Benzo(k)fluoranthene EPA 8270 <0.5 Benzo(g,h,i)perylene EPA 8270 <0.5 Fluoranthene EPA 8270 <0.5 Indene (1,2,3-cd)pyrene EPA 8270 <0.5 Laboratory performing the analysis: CENTRO DE SERVICIOS AMBIENTALES Y QUÍMICOS DE LA PONTIFICIA UNIVERSIDAD CATÓLICA DEL ECUADOR (CESAQ-PUCE) CESAQ-PUCE REPORT No Samples received: 9/15/04 Samples analyzed: 9/16-30/04 18 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 19 of 133

20 [handwritten] 52,224 Fifty-two thousand two hundred twenty-four[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 DISCUSSION OF RESULTS TPH: The soil sample from PIT 1 contains evidence of being contaminated by toxic TPH in concentrations that are approximately 2 times the level specified in DECREE No For purposes of preparing the comparison graph, the value immediately below the tolerance level stipulated for TPH in the applicable legislation (Decree No. 1215), which is < 1000, was taken, so the reference value on the graph is 999. SOIL. PIT 1 DEPTH RANGE (m) AVERAGE DEPTH (m) TPH CONCENTRATION (mg/kg) DECREE No (mg/kg) < 1000 FIGURE 1: SOIL CONTAMINATION WITH TPH IN PIT 1 SH48-NE2 TPH concentration (mg/kg) 2700 TPH CA. 2 TIMES GREATER THAN NORM. Average depth: 1.1 m DECREE No < 1000 TPH DECREE No CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 20 of 133

21 [handwritten] 52,225 Fifty-two thousand two hundred twenty-five[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL PIT GEOLOGY STUDY TYPE OF SOIL OBSERVED: According to what was seen in the borehole, it can be interpreted that the sequence of strata or layers is irregular, with the presence of both dark and light brown clay, brown mud with sandy gray tones, which is the part or area where the presence of hydrocarbons contamination can be seen, as well as the presence of fine- to medium-grain sand. The contamination can be seen in nearly all of the levels, including to the bottom of the borehole at a depth of 5.10 m, where there is a sandy mud. It is evident that the site where the boreholes were made contained poorly remediated pits, and in some cases the pits received no treatment at all. Starting from the 4.1 m level, the soil is softer, as based on the number of strikes (3) required for drilling. Based on the irregular distribution of the layers, it can be seen that the area of SH48-SW3 contains backfill, i.e., material deposited using heavy equipment. NOTE: In this pit a 25 cm overlap to the southeast of SH48-SW2 was made due to the loss of the sample in the section between 1.70 and 2.55 m at point SH48-SW3. LITHOLOGICAL DESCRIPTION AT POINT SH48-SW3: The following soil lithology was observed (stratigraphic column at point SW3); Range of drilling depth Description of soil (m) 0.25 m 0.70 m Muddy clay, brown, dry, slightly plastic 0.70 m 0.85 m Clay, brown, dry, dark, plastic 0.85 m 1.31 m Muddy clay, brown, dry, plastic 1.31 m 2.0 m Muddy clay, brown, dry, plastic 2.0 m 3.0 m Muddy clay, brown, dry, plastic 3.40 m 4.10 m Muddy sand, brown, dry 4.1 m 4.25 m Muddy clay, brown 4.25 m 4.85 m Moist sandy mud, slightly plastic 4.85 m 5.1 m Moist sandy mud, slightly plastic; coarse sand found at bottom CONTAMINATION: Nearly all levels in this pit contain contamination, as based on the drilling records. The contamination is seen primarily in the sandy-clayey mud with gray sections, which is where the contamination levels are high. The contamination seen at the various borehole levels is indicated below (stratigraphic column at point SW3: Table 4). 20 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 21 of 133

22 [handwritten] 52,226 Fifty-two thousand two hundred twenty-six[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 Table 4: STRATIGRAPHIC COLUMN AT POINT SW3 LOG 1 Start: Finish: Project: SHUSHUFINDI SA48-SW1 Area: SH48 Angle: 99 Coordinates: S W Shift: day Advance (m): 5,1 Water level: NO Direction: SW Elevation (MASL): Equipment: PERCUSSION Key: Sample No. Duratio n From To Drilling From (m) To (m) [illegible] Soil sample Contamination [illegible] Rec (%) Sample Depth (m) Key Lithology Sample: Contamination Visible Invisible [illegible] [illegible] 21 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 22 of 133

23 [handwritten] 52,227 Fifty-two thousand two hundred twenty-seven[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL LABORATORY: Laboratory analysis Table 5 shows the results of the chemical analyses performed on the soil samples from pit 3. Table 5: LABORATORY RESULTS AND COMPARISON WITH CURRENT NATIONAL ENVIRONMENTAL LEGISLATION (paragraph 1.1) Concentration unit: mg/kg PIT 3 SOIL LEGISLATION EXCESS Depth: meters DATE OF INSPECTION METHOD SH48- SW3 SH48- SW2 SH48- SW2 SH48- SW /9/2004 9/9/2004 9/9/2004 9/9/2004 DECREE No DECREE No ANALYSIS METALS Barium SM 3500 Ba <0.1 <0.1 <0.1 < Cadmium USEPA 7000 <0.1 <0.1 <0.1 <0.1 <1 2 Copper USEPA Nickel USEPA <40 50 Zinc USEPA Lead USEPA Chrome VI SM 3500 Cr 0.33 < <0.1 < TPH < DRO EPA GRO EPA 8015 <50 <50 <50 <50 Benzene EPA 8260 B <0.005 <0.005 <0.005 < Toluene EPA 8260 B <0.005 <0.005 < Ethylbenzene EPA 8260 B <0.005 < Xylene EPA 8260 B < PAH <1 <2 Benzo(a)pyrene EPA 8270 <0.5 <0.5 <0.5 < Benzo(b)fluoranthene EPA 8270 <0.5 <0.5 <0.5 <0.5 Benzo(k)fluoranthene EPA 8270 <0.5 <0.5 <0.5 <0.5 Benzo(g,h,i)perylene EPA 8270 <0.5 <0.5 <0.5 <0.5 Fluoranthene EPA 8270 <0.5 <0.5 <0.5 <0.5 Indene (1,2,3- cd)pyrene EPA 8270 <0.5 <0.5 <0.5 <0.5 Laboratory performing the analysis: CENTRO DE SERVICIOS AMBIENTALES Y QUÍMICOS DE LA PONTIFICIA UNIVERSIDAD CATÓLICA DEL ECUADOR (CESAQ-PUCE) CESAQ-PUCE REPORT No Samples received: 9/15/04 Samples analyzed: 9/16-30/04 DECREE No CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 23 of 133

24 [handwritten] 52,228 Fifty-two thousand two hundred twenty-eight[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 DISCUSSION OF RESULTS TPH: The soil sample from PIT 3 at a depth range of meters contains evidence of being contaminated by toxic TPH in concentrations that are approximately 1½ times the level specified in DECREE No. 1215, Official Gazette No. 265 of 13 February DEPTH RANGE (m) AVERAGE DEPTH (m) TPH CONCENTRATION (mg/kg) DECREE No (mg/kg) < 1000 FIGURE 2: SOIL CONTAMINATION WITH TPH IN PIT 3 SH48-SW3 TPH concentration (mg/kg) 2500 TPH 1½ TIMES GREATER THAN NORM. DECREE No < 1000 Average depth: 1.08 m TPH DECREE No CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 24 of 133

25 [handwritten] 52,229 Fifty-two thousand two hundred twenty-nine[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 TPH: The soil sample from PIT 3 at a depth range of meters contains evidence of being contaminated by toxic TPH in concentrations that are approximately 1½ times the level specified in DECREE No. 1215, Official Gazette No. 265 of 13 February DEPTH RANGE (m) AVERAGE DEPTH (m) TPH CONCENTRATION (mg/kg) DECREE No (mg/kg) < 1000 FIGURE 3: SOIL CONTAMINATION WITH TPH IN PIT 3 SH48-SW2 TPH concentration (mg/kg) 2000 TPH 1 TIME GREATER THAN NORM. DECREE No < 1000 Average depth: 1.25 m TPH DECREE No CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 25 of 133

26 [handwritten] 52,230 Fifty-two thousand two hundred thirty[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL PIT SH48-SE4 BOREHOLE GEOLOGY STUDY TYPE OF SOIL OBSERVED IN BOREHOLE SH48-SE4: The observations made in the borehole sample indicated the presence of brown clay, brown muddy clay, brown clayey mud, and sandy mud. The contamination with hydrocarbons can be clearly seen in the muddy clay, clayey mud sequence; the contamination appears in the form of small veins, nodules, or concretions with a diameter between 1.0 and 2.0 cm at depths between 1.7 and 2.4 m. In the section between 3.68 m and 3.94 m, the contamination is seen in the sandy clayey mud. The odor of hydrocarbons is strong in all sections drilled. At the end of the drilling in the final maneuver, a chemical odor was perceived. Apparently, the site of borehole SA94-SE4 is the edge of the pit. This can be verified with borehole SA94-SE4, where the presence of contaminants is greater at lower levels, which can be considered as the center of the pit (Table 6). LITHOLOGICAL DESCRIPTION OF BOREHOLE SH48-SE3: The stratigraphic column in Table 6 shows the lithography observed. 25 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 26 of 133

27 [handwritten] 52,231 Fifty-two thousand two hundred thirty-one[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 Table 6: STRATIGRAPHIC COLUMN AT POINT SE4 OF PIT 4 LOG 2 Start: Finish: Project: SHUSHUFINDI SA48-SE4 Area: SH48 Angle: 90 Shift: day Advance (m): 5,95 Water level: 4.5 Direction: SE4 Coordinates: W S Elevation (MASL): Equipment: PERCUSSION Key: Sample No. Duratio n From To Drilling From (m) To (m) [illegible] Soil sample Contamination [illegible] Rec (%) Sample Depth (m) Symbol Lithology Sample: Contamination Visible Invisible [illegible] [illegible] 26 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 27 of 133

28 [handwritten] 52,232 Fifty-two thousand two hundred thirty-two[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL SH48-SE3 BOREHOLE GEOLOGY STUDY: As was observed in the cores from this borehole, there is an irregular distribution of the strata. In this borehole most of the stratigraphic column contains evidence of contaminants starting at a depth of 1.55 m and continuing to the bottom of the borehole at a depth of 5.85 m. The water table is located at a depth of 4.7 m (Table 7). The hydrocarbon contamination is visible in the clayey mud and sandy-clayey mud in the form of small veins, gray horizontal layers, and fragments or granules with diameters as large as 1.0 cm. a characteristic strong odor of hydrocarbons is present. LITHOLOGICAL DESCRIPTION AT POINT SH48-SE3: The following soil lithology was observed. Range of drilling Description of soil depth (m) 0.0 m 0.85 m Vegetation soil with organic matter, brown, slightly moist; brown muddy clay, moist, slightly plastic 0.85 m 1.7 m Clayey mud, brown gray, moist, plastic 1.7 m 2.28 m Clayey mud, gray, very moist 2.28 m 2.55 m Clayey mud, plastic 2.55 m 3.05 m Sandy, clayey mud, dark gray, somewhat compact and granular 3.05 m 3.40 m Clayey mud, brown/gray 3.4 m 4.25 m Sandy, clayey mud, gray, somewhat compact, slightly moist 4.25 m 4.45 m Clayey mud, brown, moist 4.45 m 5.1 m Clayey mud, brown with gray shades in small sections, very moist 5.1 m 5.85 m Clayey mud, brown with gray clay sections. Almost at the end of the borehole at 5.85 m a 2-mm thick vein of iron oxides was observed m 5.95 m Sandy mud, light brown, moist with small white specks 27 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 28 of 133

29 [handwritten] 52,233 Fifty-two thousand two hundred thirty-three[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 LOG 3 Start: Finish: Table 7: STRATIGRAPHIC COLUMN AT POINT SE3 OF PIT 4 Project: SHUSHUFINDI SA48-SE3 Area: SH48 Angle: 90 Shift: day Advance (m): 5,95 Water level: 4.7m Direction: SE3 Coordinates: S W Elevation (MASL): Equipment: PERCUSSION Key: Sample No. Duratio n From To Drilling From (m) To (m) [illegible] Soil sample Contamination [illegible] Rec (%) Sample Depth (m) Key Lithology Sample: Contamination Visible Invisible [illegible] [illegible] 28 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 29 of 133

30 [handwritten] 52,234 Fifty-two thousand two hundred thirty-four[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 CONTAMINATION: The contamination is seen in some layers at various depths (stratigraphic column at point SE3 of Pit 4) (Table 7). Inside the borehole the contaminated levels or areas of the strata appear in the form of small veins, gray horizontal layers, fragments, or nodules, basically in the clayey mud and sandyclayey mud. At a depth of 4.45 m the sandy-clayey mud is completely saturated. At the end of the drilling process, in the last 0.10 cm, there are small veins of iron oxide measuring 2 mm thick on a layer of light brown sandy mud with white specks of a chemical origin. The water table at SH48-SE3 is at a depth of 4.7 m, and at SH48-SE4 at a depth of 4.5 m LABORATORY SOIL: Table 8 shows the laboratory results obtained in the soil samples taken from pit CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 30 of 133

31 JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 [handwritten] 52,235 Fifty-two thousand two hundred thirty-five[initials] Table 8: LABORATORY RESULTS AND COMPARISON WITH CURRENT NATIONAL ENVIRONMENTAL LEGISLATION GEOGRAPHICAL COORDINATES SH48-SE3 SH48-SE4 Concentration unit LATITUDE 0 14 LONGITUDE: LATITUDE " S " W " S Depth: meters METHOD DATE OF INSPECTION SH48- SE4 SH48- SE3 SH48- SE4 SH48- SE3 SH48- SE3 SH48- SE4 SH48- SE4 SH48- SE /13/04 9/13/04 9/13/04 9/13/04 9/13/04 9/13/04 9/13/04 9/13/04 30 LONGITUDE: " W LEGISLATION EXCESS ANALYSIS Barium SM 3500 Ba < < < Cadmium USEPA 7000 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 < 1 2 Copper USEPA Nickel USEPA 7000 < < <0.1 < <0.1 < Zinc USEPA Lead USEPA < Chrome VI SM 3500 Cr <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 < TPH EPA < DRO EPA <50 GRO EPA 8260 B <50 <50 <50 <50 <50 <50 <50 <50 BTEX EPA 8260 B <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 Benzene EPA 8260 B <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 < Toluene EPA 8260 B <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 < Ethylbenzene EPA 8260 B <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 < Xylene EPA 8260 B < < <0.005 <0.005 < PAH <1 <2 Benzo(a)pyrene EPA 8270 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 < Benzo(b)fluoranthene EPA 8270 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 Benzo(k)fluoranthene EPA 8270 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 Benzo(g,h,i)perylene EPA 8270 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 Fluoranthene EPA 8270 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 Indene (1,2,3-cd)pyrene EPA 8270 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 Laboratory performing the analysis: CENTRO DE SERVICIOS AMBIENTALES Y QUÍMICOS DE LA PONTIFICIA UNIVERSIDAD CATÓLICA DEL ECUADOR (CESAQ-PUCE) CESAQ- PUCE REPORT No Samples received: 9/15/04. Samples analyzed: 9/16-30/04 DEC. # 1215 DEC. # 3516 DEC. # 1215 DEC. # 3516 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 31 of 133

32 [handwritten] 52,236 Fifty-two thousand two hundred thirty-six[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 DISCUSSION OF RESULTS TPH: The soil sample from PIT 4 at a depth range of meters contains evidence of being contaminated by toxic TPH in concentrations that are approximately 7 times the level specified in DECREE No (Figure 4) DEPTH RANGE (m) AVERAGE DEPTH (m) TPH CONCENTRATION (mg/kg) DECREE No (mg/kg) < 1000 FIGURE 4: SOIL CONTAMINATION WITH TPH IN PIT 3 SH48-SE3 TPH concentration (mg/kg) 7800 TPH 7 TIMES GREATER THAN NORM. DECREE No < 1000 Average depth: 1.6 m TPH DECREE No CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 32 of 133

33 [handwritten] 52,237 Fifty-two thousand two hundred thirty-seven[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 TPH: The soil sample from PIT 3 [sic] at a depth range of meters contains evidence of being contaminated by toxic TPH (Total Petroleum Hydrocarbons) in concentrations that are approximately 0.6 times the level specified in DECREE No (Figure 5) DEPTH RANGE (m) AVERAGE DEPTH (m) TPH CONCENTRATION (mg/kg) DECREE No (mg/kg) < 1000 FIGURE 5: SOIL CONTAMINATION WITH TPH IN PIT 4 SH48-SE3 TPH concentration (mg/kg) 1600 TPH 0.6 TIMES GREATER THAN NORM. DECREE o. N 1215 < 1000 Average depth: 2.4 m TPH DECREE o. N CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 33 of 133

34 [handwritten] 52,238 Fifty-two thousand two hundred thirty-eight[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 TPH: The soil sample from PIT 4 at a depth range of meters contains evidence of being contaminated by toxic TPH in concentrations that are approximately 4 times the level specified in DECREE No (Figure 6) DEPTH RANGE (m) AVERAGE DEPTH (m) TPH CONCENTRATION (mg/kg) DECREE No (mg/kg) < 1000 FIGURE 6: SOIL CONTAMINATION WITH TPH IN PIT 4 SH48-SE3 TPH concentration (mg/kg) 5400 TPH 4 TIMES GREATER THAN NORM. DECREE o. N 1215 < 1000 Average depth: 2.9 m TPH DECREE o. N CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 34 of 133

35 [handwritten] 52,239 Fifty-two thousand two hundred thirty-nine[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 TPH: The soil sample from PIT 4 at a depth range of meters contains evidence of being contaminated by toxic TPH in concentrations that are approximately 1 time the level specified in DECREE No (Figure 7) DEPTH RANGE (m) AVERAGE DEPTH (m) TPH CONCENTRATION (mg/kg) DECREE No (mg/kg) < 1000 FIGURE 7: SOIL CONTAMINATION WITH TPH IN PIT 4 SH48-SE4 TPH concentration (mg/kg) 1700 TPH 1 TIME GREATER THAN NORM. DECREE o. N 1215 < 1000 Average depth: 2.3 m TPH DECREE o. N CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 35 of 133

36 [handwritten] 52,240 Fifty-two thousand two hundred forty[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 WATER: Table 9 shows the laboratory results obtained on the water samples from pit 4. Table 3: LABORATORY RESULTS AND COMPARISON WITH CURRENT NATIONAL ENVIRONMENTAL LEGISLATION (paragraph 1.1) SHUSHUFINDI 48 GEOGRAPHICAL COORDINATES: SH48-SE3: LATITUDE " S LONGITUDE: " W Concentration unit: PIT 4 LEGISLATION EXCESS mg/kg WATER Depth: meters SH48- METHOD SE3 DECREE DECREE EPA DECREE DECREE DATE OF 4.7 No No No No INSPECTION 9/14/2004 ANALYSIS Chlorides SM 4500 Cl B < Conductivity μs/cm SM 2510 B <170 METALS Barium SM 3500 Ba Cadmium USEPA 7000 < Copper USEPA Nickel USEPA Zinc USEPA Lead USEPA Chrome VI SM 3500 Cr TOTAL PETROLEUM HYDROCARBONS (TPH) TPH < DRO EPA 8015 <0.1 GRO EPA BTEX Benzene EPA 8260 B < Toluene EPA 8260 B < Ethylbenzene EPA 8260 B < Xylene EPA 8260 B < POLYCYCLIC AROMATIC HYDROCARBONS (PAH) PAH < Benzo(a)pyrene EPA 8270 < Benzo(b)fluoranthene EPA 8270 <0.002 Benzo(k)fluoranthene EPA 8270 <0.002 Benzo(g,h,i)perylene EPA 8270 <0.002 Fluoranthene EPA 8270 <0.002 Indene (1,2,3- EPA 8270 <0.002 cd)pyrene Laboratory performing the analysis: CENTRO DE SERVICIOS AMBIENTALES Y QUÍMICOS DE LA PONTIFICIA UNIVERSIDAD CATÓLICA DEL ECUADOR (CESAQ-PUCE). CESAQ-PUCE REPORT No Samples received: 9/15/04. Samples analyzed: 9/16-30/04. DECREE No (MIXTURE): contains the ENVIRONMENTAL REGULATION FOR HYDROCARBONS-RELATED OPERATIONS IN ECUADOR, published in OFFICIAL GAZETTE No. 265 on 13 February DECREE No contains the UNIFIED TEXT OF SECONDARY LEGISLATION OF THE MINISTRY OF THE ENVIRONMENT, Vol. I, published in Official Gazette No. 725 on 16 December US Environmental Protection Agency EPA 35 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 36 of 133

37 [handwritten] 52,241 Fifty-two thousand two hundred forty-one[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 DISCUSSION OF RESULTS BARIUM: The water sample from PIT 4 contains evidence of being contaminated by toxic barium in concentrations that are 1 time the level specified in DECREE No (Figure 8) DEPTH (m) BARIUM CONCENTRATION (mg/l) DECREE No (mg/l) FIGURE 8: WATER CONTAMINATION WITH BARIUM IN PIT 4 Barium concentration (mg/l) 1.7 BARIUM 1 TIME GREATER THAN NORM. DECREE No Depth: 4.7 m BARIUM DECREE o. N CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 37 of 133

38 [handwritten] 52,242 Fifty-two thousand two hundred forty-two[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 COPPER: The water sample from PIT 4 contains evidence of being contaminated by toxic COPPER in concentrations that are approximately 3 times the level specified in DECREE No and approximately 2 times the specified EPA norm. (Figure 9). DEPTH (m) COPPER CONCENTRATION (mg/l) DECREE No (mg/l) EPA (mg/l) FIGURE 9: WATER CONTAMINATION WITH COPPER IN PIT 4 Copper concentration (mg/l) COPPER 3.6 mg/l COPPER 3.6 mg/l 3 TIMES GREATER 2 TIMES GREATER THAN NORM THAN NORM DECREE No EPA Depth: 4.7 m COPPER LEGISLATION 37 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 38 of 133

39 [handwritten] 52,243 Fifty-two thousand two hundred forty-three[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 NICKEL: The water sample from PIT 4 contains evidence of being contaminated by toxic NICKEL in concentrations that are 75 times the level specified in DECREE No (Figure 10). DEPTH (m) NICKEL CONCENTRATION (mg/l) DECREE No (mg/l) FIGURE 10: WATER CONTAMINATION WITH NICKEL IN PIT 4 Nickel concentration (mg/l) 1.9 NICKEL 75 TIMES GREATER THAN NORM DECREE o. N 3516 Depth: 4.7 m NICKEL DECREE o. N CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 39 of 133

40 [handwritten] 52,244 Fifty-two thousand two hundred forty-four[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 LEAD: The water sample from PIT 4 contains evidence of being contaminated by toxic LEAD in concentrations that are 19 times the level specified in DECREE No (Figure 11). DEPTH (m) LEAD CONCENTRATION (mg/l) DECREE No (mg/l) FIGURE 11: WATER CONTAMINATION WITH LEAD IN PIT 4 Lead concentration (mg/l) 1 LEAD 19 TIMES GREATER THAN NORM Depth: 4.7 m DECREE 0.05 LEAD DECREE o. N 3516 o. N CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 40 of 133

41 [handwritten] 52,245 Fifty-two thousand two hundred forty-five[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 CHROME VI: The water sample from PIT 4 contains evidence of being contaminated by toxic CHROME VI in concentrations that are 6 times the level specified in the UNIFIED TEXT OF SECONDARY LEGISLATION OF THE MINISTRY OF THE ENVIRONMENT, which is contained in DECREE No (Figure 12). DEPTH (m) CHROME VI CONCENTRATION (mg/l) DECREE No (mg/l) FIGURE 12: WATER CONTAMINATION WITH CHROME VI IN PIT 4 Chrome VI concentration (mg/l) 0.33 CHROME VI 6 TIMES GREATER THAN NORM DECREE No Depth: 4.7 m CHROME VI DECREE o. N CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 41 of 133

42 [handwritten] 52,246 Fifty-two thousand two hundred forty-six[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL DRILLING MUD PITS GEOLOGY STUDY MUD PIT SH48-SE5: Here surface samples at depths of m and m were taken. LITHOLOGICAL DESCRIPTION AT BOREHOLE SH48-SE5: The following lithology was observed in the soil. Range of borehole depth (m) Soil description m Vegetation soil with roots; brown/gray pasty clay (bentonite) with black spots; hydrocarbons odor m Reddish brown clay, moist, with sections of pasty brown /gray clay (bentonite) with chemical odor m Clayey mud, sandy, light brown, moist m Muddy clay, yellowish brown, plastic, moist 41 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 42 of 133

43 [handwritten] 52,247 Fifty-two thousand two hundred forty-seven[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL LABORATORY: Table 10 shows the results of laboratory tests performed on soil samples taken from the mud pit. There is no evidence of contamination. Table 10: RESULTS AND COMPARISON WITH CURRENT NATIONAL ENVIRONMENTAL LEGISLATION RESULTS AND CORRELATION WITH CURRENT NATIONAL ENVIRONMENTAL LEGISLATION GEOGRAPHICAL COORDINATES: SH48-SE5: LATITUDE " S LONGITUDE: " W Concentration unit: MUD PIT mg/kg SOIL LEGISLATION Depth: meters SH48-SE5 SH48-SE DATE OF INSPECTION 9/13/2004 9/13/2004 DECREE No. DECREE No. ANALYSIS METHOD METALS Barium SM 3500 Ba 33.3 < Cadmium USEPA 7000 <0.1 <0.1 < 1 2 Copper USEPA Nickel USEPA < Zinc USEPA Lead USEPA < Chrome VI SM 3500 Cr <0.1 < TOTAL PETROLEUM HYDROCARBONS (TPH) TPH 250 <1000 DRO EPA <50 GRO EPA 8015 <50 <50 BTEX Benzene EPA 8260 B <0.005 < Toluene EPA 8260 B <0.005 < Ethylbenzene EPA 8260 B < Xylene EPA 8260 B < POLYCYCLIC AROMATIC HYDROCARBONS (PAH) PAH <1 <1 Benzo(a)pyrene EPA 8270 <0.5 < Benzo(b)fluoranthene EPA 8270 <0.5 <0.5 Benzo(k)fluoranthene EPA 8270 <0.5 <0.5 Benzo(g,h,i)perylene EPA 8270 <0.5 <0.5 Fluoranthene EPA 8270 <0.5 <0.5 Indene (1,2,3- cd)pyrene EPA 8270 <0.5 <0.5 Laboratory performing the analysis: CENTRO DE SERVICIOS AMBIENTALES Y QUÍMICOS DE LA PONTIFICIA UNIVERSIDAD CATÓLICA DEL ECUADOR (CESAQ-PUCE). CESAQ-PUCE REPORT No Samples received: 9/15/04. Samples analyzed: 9/16-30/ CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 43 of 133

44 [handwritten] 52,248 Fifty-two thousand two hundred forty-eight[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL TECHNICAL EVALUATION OF THE APPROVAL-ACCEPTANCE CERTIFICATES AND RESULTS OF WATER AND SOIL ANALYSES OF THE SHUSHUFINDI 48 WELL On the 22 nd of November nineteen hundred ninety-six, Mr. Hugo Jara Román, representing the Under Secretary for Environmental Protection of the Ministry of Energy and Mines, and Mr. Ricardo Reis Vega and Dr. Rodrigo Pérez P., in their capacities as Vice President and legal representative, respectively, of the TEXACO PETROLEUM COMPANY, executed the document whose purpose was (literally): to approve and accept the following work performed pursuant to Clause 4.1 of the CONTRACT FOR IMPLEMENTING OF ENVIRONMENTAL REMEDIAL WORK AND RELEASE FROM OBLIGATIONS, LIABILITY AND CLAIMS entered into on 4 May An attachment to the documents contains a list of mud pits that included the SHUSHUFINDI 48 well and the corresponding environmental remedial plans and water and soil analysis results. This section contains an evaluation of the technical validity of the Environmental Remedial work referred to in the aforementioned documents. For this purpose, the data contained in the attachments to the pit-closing reports are used as a basis. SHUSHUFINDI 48, PIT 1 Identification: RA-SSF48.1 Type: Crude Pit condition: RA: completed pit, ready for certification Sampling site: Pit Date of water sampling: 27 June 1996 Date of water analysis: 27 June CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 44 of 133

45 [handwritten] 52,249 Fifty-two thousand two hundred forty-nine[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL LABORATORY RESULTS FOLLOWING REMEDIATION OF WATER COMPARED TO NATIONAL LEGISLATION IN EFFECT ON THE DATE OF REMEDIATION: Table 11 gives the water analysis results reported by TEXACO. PARAMETERS ANALYZED Table 11: LABORATORY RESULTS REPORTED BY TEXACO UNIT INITIAL W1 5/29/96 FINAL W2 6/27/96 Agreement No O.G. No. 204 of 5 June 1989* Excess with respect to Agreement No ph ph Temperature (field) C Floating material - None None None Hydrocarbons and grease mg/l <5 <5 - Total dissolved solids mg/l Chlorides mg/l Sulfates mg/l < Suspended solids mg/l Sedimentable solids mg/l <0.1 <0.1 - Chemical oxygen demand mg/l Cadmium mg/l < Zinc mg/l Copper mg/l Chrome mg/l Cr Phenols mg/l times norm Fluorides mg/l Mercury mg/l NA Nickel mg/l ** 11 times norm Lead mg/l Vanadium mg/l NA - - Dissolved oxygen mg/l Conductivity μs Source: Texaco Certificates Shushufindi 48, page nine thousand three-hundred thirty-six * Art. 19: The quality criteria for water for human and domestic consumption that only requires disinfection to be made potable, Agreement 2144, Official Gazette No. 204, 5 June ** Art. 25: The allowable quality criteria for preserving flora and fauna in cold or warm fresh water and in ocean and estuary water, Agreement 2144, Official Gazette No. 204, 5 June CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 45 of 133

46 [handwritten] 52,250 Fifty-two thousand two hundred fifty[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 DISCUSSION OF RESULTS Based on the comparative analysis (Table 11) between the results of water remediation from pit 1 of the Shushufindi 48 well and [the requirements of] Decree [sic] No. 2144, as published in Official Gazette No. 204 on 5 June 1989, which was in effect on the date when the remediation was performed, the following observations can be made: Phenolic compounds are nine times greater than the maximum limit allowed by Decree [sic] No of 5 June 1989 (Figure 14 [sic]). Nickel is eleven times greater than the maximum limit allowed by Decree [sic] No of 5 June The following graphs show the excess concentrations of the aforesaid contaminants (Figures 13 and 14) in order to allow visualization of those excess concentrations with respect to Agreement No of 5 June Figure 13 WATER CONTAMINATION FROM PHENOLIC COMPOUNDS Concentration (mg/l) AGREEMENT 2144 AGREEMENT 2144 PHENOLS 9 TIMES GREATER THAN NORM Comparison Phenols Figure 14 WATER CONTAMINATION FROM NICKEL Concentration (mg/l) NICKEL 11 TIMES GREATER THAN NORM AGREEMENT 2144 Comparison Nickel AGREEMENT CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 46 of 133

47 [handwritten] 52,251 Fifty-two thousand two hundred fifty-one[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 CERTIFICATES: Based on a review of the certificates, it can be seen that: Very important parameters for characterizing water that has been contaminated by hydrocarbons, such as total petroleum hydrocarbons (TPH) and by heavy metals such as chrome VI and barium, are not reported. The water in the pit, consisting of approximately 100 m³, was treated using the PECS system. The Remedial Action Project (RAP) reports that aluminum sulfate was used as a flocculant. After the water had been treated using the PECS system, and according to the laboratory analyses submitted by TEXPET, as found on page nine thousand three-hundred thirty-three of the record, an increase can be seen in the total dissolved solids, as well as in the suspended solids. In addition, the value for sedimentable solids remained unchanged following the treatment, so we can conclude that the process of coagulation/flocculation and sedimentation with aluminum sulfate as the flocculant did not have the desired efficiency. A volume of approximately 1879 barrels of petroleum were recovered and sent to Sacha Central for recycling, as indicated on page nine thousand three-hundred thirty-three of the record. Approximately 100³ of mud was obtained and treated using the PECS system, which consists of washing the soil with surfactants. However, I must point out that no quality control tests were reported in order to confirm that the mud from the pit was actually remediated, as indicated on page nine thousand three-hundred thirty-four of the record. No type of treatment was given to the soil, either on the walls or on the bottom of the pit, as indicated on page nine thousand three-hundred thirty-four of the record. SHUSHUFINDI 48, PIT 2 Identification: RA-SSF48.2 Type: Crude Pit condition: RA: completed pit, ready for certification Date of water sampling: 25 & 30 March 1996, 6 April 1996 Date of water analysis: 26 & 31 March 1996, 6-7 April CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 47 of 133

48 [handwritten] 52,252 Fifty-two thousand two hundred fifty-two[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 The following information was obtained from the documents: IDENTIFICATION RA-SSF 48.2-S1 RA-SSF 48.2-S2 RA-SSF 48.2-S3 RA-SSF 48.2-S4 TYPE COMPOSITE SINGLE SINGLE COMPOSITE SAMPLING SITE BOTTOM WALL BOTTOM BOTTOM DEPTH (m) SAMPLING DATE 25 March March March April 1996 ANALYSIS DATE 26 March March March April 1996 Total mg/kg Petroleum Hydrocarbons (TPH) TCLP mg/l <5 <5 <5 <5 DISCUSSION: Evaluation of this information indicates that: Total petroleum hydrocarbons (TPH) present before the treatment were 7114 mg/kg, with an approximate volume of 50 m³. These were treated using the PECS system, washing the soil with surfactants, which reduced the TPH concentration to 1500 mg/kg. No other treatment was done, nor was any control test on soil contamination of pit No. 2 made. SHUSHUFINDI 48, PIT 3 Identification: RA-SSF48.3 Type: Asphaltic waste Pit condition: RA: completed pit, ready for certification Sampling site: Fast tanks Date of water sampling: 27 July 1996 Date of water analysis: July CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 48 of 133

49 [handwritten] 52,253 Fifty-two thousand two hundred fifty-three[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 RESULTS FOLLOWING REMEDIATION OF WATER IN SHUSHUFINDI 48 PIT 3 COMPARED TO NATIONAL LEGISLATION IN EFFECT ON THE DATE OF REMEDIATION: Table 12 gives the water analysis results reported by TEXACO for approval of the documents. PARAMETERS ANALYZED Table 12: LABORATORY RESULTS REPORTED BY TEXACO UNIT RA-SSF48.3- W8 FAST TANK TREATED Agreement No O.G. No. 204 of 5 June 1989* Excess with respect to Agreement No ph ph Temperature (field) C Floating material - None None Hydrocarbons and grease mg/l <5 - Total dissolved solids mg/l Chlorides mg/l Sulfates mg/l < Suspended solids mg/l <0.1 - Sedimentable solids mg/l <0.1 - Chemical oxygen demand mg/l Cadmium mg/l Zinc mg/l Copper mg/l Chrome mg/l 0.02 Cr Phenols mg/l times above the norm Fluorides mg/l Mercury mg/l NA Nickel mg/l ** 11 times above the norm Lead mg/l Vanadium mg/l NA - Dissolved oxygen mg/l Conductivity μs Source: Texaco Certificates Shushufindi 48, page nine thousand three-hundred thirty-six * Art. 19: The quality criteria for water for human and domestic consumption that only requires disinfection to be made potable, Agreement 2144, Official Gazette No. 204, 5 June ** Art. 25: The allowable quality criteria for preserving flora and fauna in cold or warm fresh water and in ocean and estuary water, Agreement 2144, Official Gazette No. 204, 5 June CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 49 of 133

50 [handwritten] 52,254 Fifty-two thousand two hundred fifty-four[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 DISCUSSION OF RESULTS: Based on the comparative analysis between the results of water remediation from pit 3 of the Shushufindi 48 well and [the requirements of] Decree [sic] No. 2144, as published in Official Gazette No. 204 on 5 June 1989, which was in effect on the date when the remediation was performed, the following observations can be made (Table 12): Phenolic compounds are four times greater than the maximum limit allowed by Decree [sic] No of 5 June 1989 (Figure 15). Nickel is eleven times greater than the maximum limit allowed by Decree [sic] No of 5 June 1989 (Figure 16). Figure 15 WATER CONTAMINATION FROM PHENOLIC COMPOUNDS Concentration (mg/l) PHENOLS 4 TIMES GREATER THAN NORM AGREEMENT 2144 Comparison Phenols AGREEMENT 2144 Figure 16 WATER CONTAMINATION FROM NICKEL Concentration (mg/l) NICKEL 11 TIMES GREATER THAN NORM AGREEMENT 2144 Comparison Nickel AGREEMENT CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 50 of 133

51 [handwritten] 52,255 Fifty-two thousand two hundred fifty-five[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 CERTIFICATES: Based on a review of the certificates, it can be seen that: A volume of approximately m³ of asphaltic waste was recovered and sent to pit 5 of Sacha Station 1 for confinement, as indicated on page nine thousand three-hundred sixty-two. The mud from the pit was treated using the ECUAPET system, which consist of encapsulating the contaminant in situ and disposing of it in the bottom of the pit. A TPH value of 6602 mg/kg prior to treatment was reported; this amount was reduced to 4017 mg/kg after application of the aforementioned system, as indicated on page nine thousand three-hundred sixty-two of the document. As can be seen, it was not possible to encapsulated [all of] the contaminated water with such high TPH values. The system used in remediating the mud from the pit has a low efficiency rate, because it was only possible to reduce approximately 39% of the TPH concentration. No remediation process was used for the contaminated soil from pit 2, as indicated on page nine thousand three-hundred sixty-two. SHUSHUFINDI 48, PIT 4 Identification: RA-SSF48.4 Type: Asphaltic waste Pit condition: RA: completed pit, ready for certification Sampling site: Fast tanks Date of water sampling: 17 July 1997 Date of water analysis: July CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 51 of 133

52 [handwritten] 52,256 Fifty-two thousand two hundred fifty-six[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 RESULTS FOLLOWING REMEDIATION OF WATER IN SHUSHUFINDI 48 PIT 4 COMPARED TO NATIONAL LEGISLATION IN EFFECT ON THE DATE OF REMEDIATION: Table 13 gives the water analysis results reported by TEXACO. PARAMETERS ANALYZED Table 13: LABORATORY RESULTS REPORTED BY TEXACO UNIT RA-SSF48.4- W5 FAST TANK TREATED Agreement No O.G. No. 204 of 5 June 1989* Excess with respect to Agreement No ph ph Temperature (field) C Floating material - None None Hydrocarbons and grease mg/l <5 - Total dissolved solids mg/l Chlorides mg/l Sulfates mg/l Suspended solids mg/l Sedimentable solids mg/l <0.1 - Chemical oxygen demand mg/l Cadmium mg/l Zinc mg/l < Copper mg/l Chrome mg/l 0.08 Cr Phenols mg/l times the norm Fluorides mg/l Mercury mg/l NA Nickel mg/l < ** 33 times the norm Lead mg/l Vanadium mg/l NA - Dissolved oxygen mg/l Conductivity μs Source: Texaco Certificates Shushufindi 48, page nine thousand three-hundred thirty-six * Art. 19: The quality criteria for water for human and domestic consumption that only requires disinfection to be made potable, Agreement 2144, Official Gazette No. 204, 5 June ** Art. 25: The allowable quality criteria for preserving flora and fauna in cold or warm fresh water and in ocean and estuary water, Agreement 2144, Official Gazette No. 204, 5 June CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 52 of 133

53 [handwritten] 52,257 Fifty-two thousand two hundred fifty-seven[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 DISCUSSION OF RESULTS REPORTED BY TEXACO Based on the comparative analysis between the results of water remediation from pit 4 of the Shushufindi 48 well and [the requirements of] Decree [sic] No. 2144, as published in Official Gazette No. 204 on 5 June 1989, which was in effect on the date when the remediation was performed, the following observations can be made (Table 12): Phenolic compounds are forty-four times greater than the maximum limit allowed by Decree [sic] No of 5 June 1989 (Figure 17). Nickel is thirty-three times greater than the maximum limit allowed by Decree [sic] No of 5 June 1989 (Figure 16). Figure 17 WATER CONTAMINATION FROM PHENOLIC COMPOUNDS Concentration (mg/l) PHENOLS 44 TIMES GREATER THAN NORM AGREEMENT 2144 Comparison Phenols AGREEMENT 2144 Figure 18 WATER CONTAMINATION FROM NICKEL Concentration (mg/l) NICKEL 33 TIMES GREATER THAN NORM AGREEMENT 2144 Comparison Nickel AGREEMENT CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 53 of 133

54 [handwritten] 52,258 Fifty-two thousand two hundred fifty-eight[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL 48 CERTIFICATES: Based on a review of the certificates, it can be seen that: The mud from the pit was treated using the ECUAPET system, which consisted of encapsulating the contaminant in situ and disposing of it in the bottom of the pit. A TPH value of mg/kg prior to treatment was reported; this amount was reduced to 3605 mg/kg after application of the aforementioned system, as indicated on page nine thousand three-hundred sixty-two of the document. No remediation process was used for the contaminated soil from pit 4, as indicated on page nine thousand three-hundred sixty-two. 53 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 54 of 133

55 [handwritten] 52,259 Fifty-two thousand two hundred fifty-nine[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL CONCLUSIONS 3.1 GEOLOGY STUDY 1. PIT 1 CONTAMINATION: Low levels of contamination are seen in this pit, basically in the clayey mud with sections of gray clay in the form of bands, with an odor of hydrocarbons. 2. PIT 3 CONTAMINATION: Most of the strata in this pit contain contamination, as indicated by the borehole records. According to TEXACO, remediation of this pit was performed using surfactants, but the borehole data and the lithostratigraphic analysis show that this remediation was ineffective. The contamination can be seen primarily in the sandyclayey mud with gray sections, which is where the contamination levels are high. 3. PIT 4 CONTAMINATION AT POINT SE4: Contamination can be seen in some strata at different depths. Inside the sample core there are contaminated levels or sections of the strata in the form of small veins, gray horizontals, fragments, or nodules. At a depth of 4.45 m, the sandy-clay mud is entirely saturated. At the bottom of the borehole, in the final 0.10 cm there are 2-mm thick veins of iron oxide on top of a layer of light brown sandy mud with some white specks of a chemical origin. 4. MUD PIT SH48-SE5: There is a strong odor of hydrocarbons in the first 20 centimeters. Between 20 and 60 centimeters there is a stratus of reddish-brown moist clay with streaks of pasty gray-brown clay (bentonite) that smells of chemicals. 3.2 AERIAL PHOTOGRAPH ANALYSIS 5. AERIAL PHOTOGRAPH FROM 1976: It can be seen that TEXACO dug three pits in the ground (Nos. 1 and 3 according to TEXACO and 5, not reported by TEXACO). These pits are not sealed, which allows migration of contaminants into lower levels, thereby contaminating the soil and water. TEXACO discharged mud contaminated with crude, crude waste from production tests, and workover waste. 6. AERIAL PHOTOGRAPH FROM 1985: It can be seen that pit 1 was partially covered with vegetation, and pit 3 was entirely covered by earth and vegetation. TEXACO continued to discharge toxic waste into pits 1 and CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 55 of 133

56 [handwritten] 52,260 Fifty-two thousand two hundred sixty[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL AERIAL PHOTOGRAPH FROM 1990: In 1990 TEXACO dug two additional pits and used them, without sealing them, for discharging mud contaminated with crude, crude waste from production tests, and workover waste. A total of five pits were dug in the ground for discharging all of the toxic waste. TOTAL AREA OF THE FIVE PITS = m² AVERAGE DEPTH: 4.95 meters (average depth of contamination according to stratigraphic profiles: 5.10 m; 3.94 m; 5.80 m) VOLUME OF CONTAMINATED SOIL: 26,033.4 m³ DENSITY OF MUD: 1.80 tons/m³ TOTAL AMOUNT TO BE REMEDIATED: 48,860 tons of contaminated soil 3.3 REMEDIATION METHOD AND LABORATORY CERTIFICATES 8. The PECS and ECUAPET methods used by CHEVRON-TEXACO were insufficient or inappropriate because the laboratory results reported by the company show that Total Petroleum Hydrocarbons (TPH), phenols, and heavy metals remained in the effluent following treatment. Nevertheless, the effluent was discharged into the environment, thus causing the environmental impact. The certificates were signed even though the soil shows evidence that it is still contaminated. 3.4 LABORATORY 9. TPH IN SOIL SAMPLE FROM PIT 1-N3-DEPTH BETWEEN 1.0 AND 1.2 METERS: The soil sample from PIT 1 shows evidence of being contaminated by toxic TPH in a concentration that is approximately 2 times greater than the norm indicated in Decree This indicates that there was migration of the contaminants toward lower levels. 10. TPH IN SOIL SAMPLE FROM PIT 2-SW3-DEPTH BETWEEN 0.85 AND 1.31 METERS: The soil sample from PIT 2 shows evidence of being contaminated by toxic TPH in a concentration that is approximately 1½ times greater than the norm indicated in Decree This indicates that there was migration of the contaminants toward lower levels. 11. TPH IN SOIL SAMPLE FROM PIT 2-SW2-DEPTH BETWEEN 1.20 AND 1.30 METERS: The soil sample from PIT 2 shows evidence of being contaminated by toxic TPH in a concentration that is 1 time greater than the norm indicated in Decree CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 56 of 133

57 [handwritten] 52,261 Fifty-two thousand two hundred sixty-one[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL TPH IN SOIL SAMPLE FROM PIT 3-SE3-DEPTH BETWEEN 1.55 AND 1.70 METERS: The soil sample from PIT 3 shows evidence of being contaminated by toxic total petroleum hydrocarbons (TPH) in a concentration that is approximately 7 times greater than the norm indicated in Decree This is clear evidence that there was migration of the contaminants toward lower levels. 13. TPH IN SOIL SAMPLE FROM PIT 3-SE3-DEPTH BETWEEN 2.28 AND 2.55 METERS: The soil sample from PIT 3 shows evidence of being contaminated by toxic TPH in a concentration that is approximately 4 times greater than the norm indicated in Decree The contaminant migrated and is present in the depth range between 2.28 and 2.55 meters, exceeding the environmental tolerance by approximately 1 time. The migration of the contaminant is proven because in the depth range between 2.75 and 3.05 m concentrations that are 4 times greater than the norm were found. 14. TPH IN SOIL SAMPLE FROM PIT 4-SE4-DEPTH BETWEEN 2.20 AND 2.40 METERS: The soil sample from PIT 1 shows evidence of being contaminated by toxic TPH in a concentration that is approximately 1 time greater than the norm indicated in Decree This indicates that there was migration of the contaminants toward lower levels. 15. BARIUM: The water sample from PIT 3 shows evidence of being contaminated by toxic BARIUM at a depth of 4.7 meters, in a concentration that is approximately 1 time greater than the amount specified in Decree No This indicates that the barium migrated from the surface soil into the water. 16. COPPER: The water sample from PIT 3 shows evidence of being contaminated by toxic COPPER at a depth of 4.7 meters, in a concentration that is approximately 3 times greater than the norm indicated in Decree No and approximately 2 times greater than the EPA specification. 17. NICKEL: The water sample from PIT 3 shows evidence of being contaminated by toxic NICKEL at a depth of 4.7 meters, in a concentration that is 75 times the amount specified in Decree No LEAD: The water sample from PIT 3 shows evidence of being contaminated by toxic LEAD at a depth of 4.7 meters, in a concentration that is 19 times the amount specified in Decree No CHROME VI: The water sample from PIT 3 shows evidence of being contaminated by toxic CHROME VI at a depth of 4.7 meters, in a concentration that is approximately 6 times the amount specified in Decree No CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 57 of 133

58 [handwritten] 52,262 Fifty-two thousand two hundred sixty-two[initials] JUDICIAL INSPECTION REPORT FOR SHUSHUFINDI WELL REMEDIATION COSTS The total amount of soil that must be remediated is 26,033.4 [m³] at a cost of US$26,033,400 (TWENTY-SIX MILLION THIRTY-THREE THOUSAND FOUR-HUNDRED US DOLLARS). 3.6 QUESTIONS FROM THE PARTIES This report may answer the questions posed by the parties during the judicial inspection. 57 CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 58 of 133

59 CESAQ-PUCE LOGO [handwritten] 52,263 Fifty-two thousand two hundred sixty-three[initials] CESAQ-PUCE Report No Page 1 of 5 ANNEX 4.1 CESAQ-PUCE PONTIFICAL CATHOLIC UNIVERSITY OF ECUADOR CENTER FOR ENVIRONMENTAL AND CHEMICAL SERVICES ANALYSIS REPORT No General information; Client: CHARLES CALMBACHER Telephone: Project: SHUSHUFINDI 48 Number of samples: 16 Parameters analyzed 1. SOIL SAMPLES: [Stamp]SEVENTH NOTARY OF QUITO This is a true photocopy of the original document that was presented to me and returned to the party. Quito, March 7, 2005 [Illegible signature] Dr. Luis Vargas Hinostroza SEVENTH NOTARY OF QUITO [Seal] Physicochemical Parameters Method Unit Sample 1 Result SH 48 SW m (9/9/04) Sample 2 Result SH 48 SW m (9/9/04) Sample 3 Result SH 48 SW m (9/9/04) Sample 4 Result SH 48 SW m (9/9/04) Metals Cadmium USEPA 7000 mg/kg <0.1 <0.1 <0.1 <0.1 Nickel USEPA 7000 mg/kg Lead USEPA 7000 mg/kg Hexavalent Chromium SM 3500 Cr mg/kg < <0.1 Barium SM 3500 Ba mg/kg <0.1 <0.1 <0.1 <0.1 Copper USEPA 7000 mg/kg Zinc USEPA 7000 mg/kg Total Hydrocarbons TPH-GRO EPA 8015 mg/kg <50 <50 <50 <50 TPH-DRO EPA 8015 mg/kg BTEX Benzene EPA 8260 B mg/kg <0.005 <0.005 <0.005 <0.005 Toluene EPA 8260 B mg/kg <0.005 < <0.005 Ethylbenzene EPA 8260 B mg/kg <0.005 < Xylenes EPA 8260 B mg/kg < PAH s Fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(b)fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(k)fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(a)pyrene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Indeno(1,2,3- EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 c,d)pyrene Benzo(g,h,i)perylene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 This report only concerns the samples submitted for testing This report may only be reproduced in its entirety with the prior written authorization of CESAQ PUCE. CESAQ PUCE CENTER FOR ENVIRONMENTAL AND CHEMICAL SERVICES Av. 12 de Octubre No y Patria Pbx: (593-2) Ext.:1299/1712 Telefax: (593-2) cesaq@puce.edu.ec Quito - Ecuador CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 59 of 133

60 CESAQ-PUCE LOGO Physicochemical Parameters Method Unit ANNEX 4.1 Sample 5 Result SH 48 N m (9/9/04) [handwritten] 52,264 Fifty-two thousand two hundred sixty-four[initials] CESAQ-PUCE Report No Page 2 of 5 Sample 6 Result SH 48 - SE m (9/13/04) Sample 7 Result SH 48 - SE m (9/13/04) Sample 8 Result SH 48 - SE m (9/13/04) Metals Cadmium USEPA 7000 mg/kg <0.1 <0.1 <0.1 <0.1 Nickel USEPA 7000 mg/kg 6.6 <0.1 <0.1 <0.1 Lead USEPA 7000 mg/kg Hexavalent Chromium SM 3500 Cr mg/kg <0.1 <0.1 <0.1 <0.1 Barium SM 3500 Ba mg/kg <0.1 < Copper USEPA 7000 mg/kg Zinc USEPA 7000 mg/kg Total Hydrocarbons TPH-GRO EPA 8015 mg/kg <50 <50 <50 <50 TPH-DRO EPA 8015 mg/kg BTEX Benzene EPA 8260 B mg/kg <0.005 <0.005 <0.005 <0.005 Toluene EPA 8260 B mg/kg <0.005 <0.005 <0.005 <0.005 Ethylbenzene EPA 8260 B mg/kg <0.005 <0.005 <0.005 <0.005 Xylenes EPA 8260 B mg/kg <0.005 <0.005 <0.005 <0.005 PAH s Fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(b)fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(k)fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(a)pyrene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Indeno(1,2,3-c,d)pyrene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(g,h,i)perylene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 [Stamp] SEVENTH NOTARY OF QUITO This is a true photocopy of the original document that was presented to me and returned to the party. Quito, March 7, 2005 [Illegible signature] Dr. Luis Vargas Hinostroza SEVENTH NOTARY OF QUITO [Seal] This report only concerns the samples submitted for testing This report may only be reproduced in its entirety with the prior written authorization of CESAQ PUCE. CESAQ PUCE CENTER FOR ENVIRONMENTAL AND CHEMICAL SERVICES Av. 12 de Octubre No y Patria Pbx: (593-2) Ext.:1299/1712 Telefax: (593-2) cesaq@puce.edu.ec Quito - Ecuador CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 60 of 133

61 CESAQ-PUCE LOGO Physicochemical Parameters Method Unit ANNEX 4.1 Sample 9 Result SH 48 - SE m (9/13/04) [handwritten] 52,265 Fifty-two thousand two hundred sixty-five[initials] CESAQ-PUCE Report No Page 3 of 5 Sample 10 Result SH 48 - SE m (9/13/04) Sample 11 Result SH 48 - SE m (9/14/04) Sample 12 Result SH 48 - SE m (9/14/04) Metals Cadmium USEPA 7000 mg/kg <0.1 <0.1 <0.1 <0.1 Nickel USEPA 7000 mg/kg Lead USEPA 7000 mg/kg Hexavalent SM 3500 Cr mg/kg <0.1 <0.1 <0.1 <0.1 Chromium Barium SM 3500 Ba mg/kg 33.1 < Copper USEPA 7000 mg/kg Zinc USEPA 7000 mg/kg Total Hydrocarbons TPH-GRO EPA 8015 mg/kg <50 <50 <50 <50 TPH-DRO EPA 8015 mg/kg 250 < BTEX Benzene EPA 8260 B mg/kg <0.005 <0.005 <0.005 <0.005 Toluene EPA 8260 B mg/kg <0.005 <0.005 <0.005 <0.005 Ethylbenzene EPA 8260 B mg/kg <0.005 <0.005 <0.005 Xylenes EPA 8260 B mg/kg < PAH s Fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(b)fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(k)fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Benzo(a)pyrene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 Indeno(1,2,3- EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 c,d)pyrene Benzo(g,h,i)perylene EPA 8270 mg/kg <0.5 <0.5 <0.5 <0.5 [Stamp] SEVENTH NOTARY OF QUITO This is a true photocopy of the original document that was presented to me and returned to the party. Quito, March 7, 2005 [Illegible signature] Dr. Luis Vargas Hinostroza SEVENTH NOTARY OF QUITO This report only concerns the samples submitted for testing [Seal] This report may only be reproduced in its entirety with the prior written authorization of CESAQ PUCE. CESAQ PUCE CENTER FOR ENVIRONMENTAL AND CHEMICAL SERVICES Av. 12 de Octubre No y Patria Pbx: (593-2) Ext.:1299/1712 Telefax: (593-2) cesaq@puce.edu.ec Quito - Ecuador CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 61 of 133

62 CESAQ-PUCE LOGO Physicochemical Parameters Method Unit ANNEX 4.1 Sample 13 Result SH 48 SE m (9/14/04) [handwritten] 52,266 Fifty-two thousand two hundred sixty-six[initials] CESAQ-PUCE Report No Page 4 of 5 Sample 14 Result SH 48 SE m (9/14/04) Sample 15 Result SH 48 SE m (9/14/04) Metals Cadmium USEPA 7000 mg/kg <0.1 <0.1 <0.1 Nickel USEPA 7000 mg/kg < <0.1 Lead USEPA 7000 mg/kg Hexavalent Chromium SM 3500 Cr mg/kg <0.1 <0.1 <0.1 Barium SM 3500 Ba mg/kg < <0.1 Copper USEPA 7000 mg/kg Zinc USEPA 7000 mg/kg Total Hydrocarbons TPH-GRO EPA 8015 mg/kg <50 <50 <50 TPH-DRO EPA 8015 mg/kg <50 BTEX Benzene EPA 8260 B mg/kg <0.005 <0.005 <0.005 Toluene EPA 8260 B mg/kg <0.005 <0.005 <0.005 Ethylbenzene EPA 8260 B mg/kg <0.005 <0.005 <0.005 Xylenes EPA 8260 B mg/kg <0.005 <0.005 PAH s Fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 Benzo(b)fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 Benzo(k)fluoranthene EPA 8270 mg/kg <0.5 <0.5 <0.5 Benzo(a)pyrene EPA 8270 mg/kg <0.5 <0.5 <0.5 Indeno(1,2,3-c,d)pyrene EPA 8270 mg/kg <0.5 <0.5 <0.5 Benzo(g,h,i)perylene EPA 8270 mg/kg <0.5 <0.5 <0.5 [Stamp] SEVENTH NOTARY OF QUITO This is a true photocopy of the original document that was presented to me and returned to the party. Quito, March 7, 2005 [Illegible signature] Dr. Luis Vargas Hinostroza SEVENTH NOTARY OF QUITO This report only concerns the samples submitted for testing [Seal] This report may only be reproduced in its entirety with the prior written authorization of CESAQ PUCE. CESAQ PUCE CENTER FOR ENVIRONMENTAL AND CHEMICAL SERVICES Av. 12 de Octubre No y Patria Pbx: (593-2) Ext.:1299/1712 Telefax: (593-2) cesaq@puce.edu.ec Quito - Ecuador CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 62 of 133

63 CESAQ-PUCE LOGO WATER SAMPLES: ANNEX 4.1 [handwritten] 52,267 Fifty-two thousand two hundred sixty-seven[initials] CESAQ-PUCE Report No Page 5 of 5 Physicochemical Parameters Method Unit Sample 16 Result SH 48 SE m Chlorides 1,2 SM 4500 Cl B mg/l <3.0 Conductivity SM 2510 B µs/cm Metals Cadmium USEPA 7000 mg/l <0.1 Nickel USEPA 7000 mg/l 1.9 Lead 1 USEPA 7000 mg/l 1.0 Hexavalent Chromium SM 3500 Cr mg/l 0.33 Barium SM 3500 Ba mg/l 1.7 Copper 1 USEPA 7000 mg/l 3.6 Zinc USEPA 7000 mg/l 3.9 Total Hydrocarbons TPH-GRO EPA 8015 mg/l 0.12 TPH-DRO EPA 8015 mg/l <0.1 BTEX Benzene EPA 8260 B mg/l <0.002 Toluene EPA 8260 B mg/l <0.002 Ethylbenzene EPA 8260 B mg/l <0.002 Xylenes EPA 8260 B mg/l <0.002 PAH s Fluoranthene EPA 8270 mg/l < Benzo(b)fluoranthene EPA 8270 mg/l < Benzo(k)fluoranthene EPA 8270 mg/l < Benzo(a)pyrene EPA 8270 mg/l < Indeno(1,2,3-c,d)pyrene EPA 8270 mg/l < Benzo(g,h,i)perylene EPA 8270 mg/l < Tests found within the scope of accreditation 415/LE 929 by ENAC 2 Tests found within the scope of accreditation OAE LE2 C NOTE2:_ The analyses of TPH, BTEX and PAH s are performed by the Gruntec Laboratory. Test Performance Date The samples were received by CESAQ PUCE on September 15, The analyses were performed in the period from September 16 to September 30, The TPH, BTEX and PAH analyses were performed by the Gruntec Laboratory. Person responsible: [Illegible signature] Alexandra Hidalgo J. TECHNICAL DIRECTOR CESAQ-PUCE [Stamp] CENTER FOR ENVIRONMENTAL AND CHEMICAL SERVICES CESAQ PUCE PONTIFICAL CATHOLIC UNIVERSITY OF ECUADOR [Stamp] SEVENTH NOTARY OF QUITO This is a true photocopy of the original document that was presented to me and returned to the party. Quito, March 7, 2005 [Illegible signature] Dr. Luis Vargas Hinostroza SEVENTH NOTARY OF QUITO [Seal] This report only concerns the samples submitted for testing This report may only be reproduced in its entirety with the prior written authorization of CESAQ PUCE. CESAQ PUCE CENTER FOR ENVIRONMENTAL AND CHEMICAL SERVICES Av. 12 de Octubre No y Patria Pbx: (593-2) Ext.:1299/1712 Telefax: (593-2) cesaq@puce.edu.ec Quito - Ecuador CERT. INTERMARK VER [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 63 of 133

64 Chain of Custody / Request for analysis Project Name: SHUSHUFINDI 48 Project Number: Samples taken by: ENGINEER MILTON REINOSO ANNEX 4.2 Laboratory of the Catholic University 20% Other Laboratory Average C= Composite P = Punctual air liquid soil sediment 100% [handwritten] 52,268 Fifty-two thousand two hundred sixty-eight[initials] Required Analysis GRO DRO PAH HEAVY METALS BTEX Regular Speed of Analysis Date Time Identification of the Sample Number of Containers Notes :45 SH 48 SE 3 DEPTH: m x x x x x x 1 bottle :14 SH 48 SE 3 DEPTH: m x x x x x x 1 bottle :30 SH 48 SE 3 DEPTH: m x x x x x x 1 bottle :15 SH 48 SE 3 DEPTH: m x x x x x x 1 bottle :30 SH 48 SE 3 DEPTH: m x x x x x x 1 bottle :37 SH 48 SE 3 DEPTH: 4.70 m x 4 bottles :46 JI SSF 48 SH 48 SE4 TW DEPTH: m x 1 bottle :05 JI SSF 48 SH 48 SE4 TW DEPTH: m x 1 bottle :50 JI SSF 48 SH 48 SE4 TW DEPTH: m x 1 bottle 14 Rapid Submitted by: MILTON REINOSO Date 9/14/04 Time 13:40 Submitted by: Date Time Submitted by: Date Time Received by: Date Time Received by: Date Time Received by: Date Time [Stamp] SEVENTH NOTARY OF QUITO This is a true photocopy of the original document that was presented to me and returned to the party. Quito, March 7, 2005 [Illegible signature] Dr. Luis Vargas Hinostroza SEVENTH NOTARY OF QUITO [Seal] CERT. INTERMARK VER: JD [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 64 of 133

65 Chain of Custody/ Request for analysis ANNEX 4.2 Laboratory of the Catholic University Other Laboratory [handwritten] 52,269 Fifty-two thousand two hundred sixty-nine[initials] [Illegible] [Illegible] Project Name: SHUSHUFINDI 48 Project Number: Average C= Composite P = Punctual Required Analysis Speed of Analysis Samples taken by: ENGINEER MILTON REINOSO air liquid soil sediment GRO DRO PAH METALS BTEX Regular Date Time Identification of the Sample Number of Containers Notes 9/9/04 12:18 SH 48 SW m x x x x x x 1 bottle 9/9/04 12:19 SH 48 SW m x 1 bottle 9/9/04 14:02 SH 48 SW m x 1 bottle 9/9/04 15:53 SH 48 SW m x 1 bottle 9/9/04 14:10 SH 48 N m x 1 bottle Rapid Submitted by: ENGINEER MILTON REINOSO Date 9/9/04 Time 15:00 Submitted by: Date Time Submitted by: Date Time Received by: Date Time Received by: Date Time Received by: Date Time [Stamp] SEVENTH NOTARY OF QUITO This is a true photocopy of the original document that was presented to me and returned to the party. Quito, March 7, 2005 [Illegible signature] Dr. Luis Vargas Hinostroza SEVENTH NOTARY OF QUITO [Seal] CERT. INTERMARK VER: JD [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 65 of 133

66 Chain of Custody/ Request for analysis Project Name: SHUSHUFINDI 48 Project Number: Samples taken by: ENGINEER MILTON REINOSO ANNEX 4.2 Laboratory of the Catholic University 20% Other Laboratory Average C= Composite P = Punctual air liquid soil sediment 100% [handwritten] 52,270 Fifty-two thousand two hundred seventy[initials] Required Analysis GRO DRO PAH HEAVY METALS BTEX [Illegible] [Illegible] Regular Rapid Speed of Analysis Date Time Identification of the Sample Number of Containers Notes :55 SH 48 SE 4 DEPTH: m x x x x x x 1 bottle :30 SH 48 SE 4 DEPTH: m x x x x x x 1 bottle :00 SH 48 SE 4 DEPTH: m x x x x x x 1 bottle :38 SH 48 SE 4 DEPTH: m x x x x x x 1 bottle :29 JI SSF 48 SB 1 DEPTH: m x x x x x x 1 bottle :20 SH 48 SE 5 DEPTH: m x x x x x x 1 bottle :27 SH 48 SE 5 DEPTH: m x x x x x x 1 bottle Submitted by: MILTON REINOSO Date 9/13/04 Time 17:00 Submitted by: Date Time Submitted by: Date Time Received by: Date Time Received by: Date Time Received by: Date Time [Stamp] SEVENTH NOTARY OF QUITO This is a true photocopy of the original document that was presented to me and returned to the party. Quito, March 7, 2005 [Illegible signature] Dr. Luis Vargas Hinostroza SEVENTH NOTARY OF QUITO [Seal] CERT. INTERMARK VER: JD [Circular stamp] SUPERIOR COURT OF JUSTICE NUEVA LOJA [seal] OFFICE OF THE PRESIDENT'S CLERK [initials] Plaintiff's Exhibit 250 p. 66 of 133

67 CERTIFICATE OF ACCURACY Thomas L. West III hereby states the following: That I am certified for translation from Spanish into English by the American Translators Association. That I have made the translation of the document accompanying this certificate from Spanish into English on August 23, 2013, and said translation is true and complete to the best of my knowledge, ability and belief. Thomas L. West III INTERMARK LANGUAGE SERVICES CORPORATION Plaintiff's Exhibit 250 p. 67 of 133

68 JUICIO VERBAL SUMARIO , MARIA AGUINDA Y OTROS EN CONTRA DE CHEVRONTEXACU, CORTE SUPERIOR DE NUEVA LOJA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 SENOR PRESIDENTE DE LA CORTE SUPERIOR DE NUEVA LO.JA: ~\fi~l Dr. Charles Calmbacher, Ph. D., CIH CO](TE SUPErnOl{ DE)USTICIA DB NUEVA LOlli..r'tf,LSill~i;H.cJ A RECIOIDO en Nueva LOjn, a. Qa ;i;.~~;.:~:o.. ~;~~. COPHl$.,. )(1"(,1. g; "p:>' CVX-RICO Plaintiff's Exhibit 250 p. 68 of 133

69 ) ~5?::i~ ~~~ INFORME DE LA INSPECCl6N JUDICIAL DEL FOZQ SHUSIllJFINDI 48 e.;.: tft INDICE 1. SUMARIO... Piigina 1.1 DILiGENCIA JUDICIAL DESCRlPCI0N DEL SITIO....5 L3 OPERA ClONES REALIZADAS RESULTADOS... ~ PISClNA 1.,... ; IDEL ESTUDIO GEOLOGICO DEL LAB ORA TORIO..., PISClNA 3... c DEL ESTUDIO GEOLOGICO DEL LABORATORIO..., PISClNA ') PERFORACrON SH48 - SE DEL ESTUDIO GEOLOGICO PERFORACrON SH48 - SE3..., DEL ESTUDIO GEOLOGICO DEL LAB ORA TORIO...,..., prscina DE LODOS VEL ESTUDIO GEOLOGICO DEL LABORATORIO..., EVALUACrON TECNICA DE LAS ACTAS DE APROBAcrON - ACEPTACION Y DE LOS RESULTADOS ANALITrCOS DE AGUA Y SUEW RESULTADOS DE LABORATORIO DESPUES DE LA REMEDIACION DEL RECURSO AGUA COMP ARADOS CON LA LEGISLACrON NACIONAL VIGENTE A LA FECHA DE LA REMEDIACrON... ; I CVX-RICO Plaintiff's Exhibit 250 p. 69 of 133

70 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI CONCLUSIONES 3.1 DEL ESTIJDIO GEOLOGICO"... "..., DEL ANA-LISTS DE FOTOGRAFiASAEREAS.,...,..., DEL METODO DE REMEDlACrON Y AeTAS '. DEL LABORATORIO...,...,..., COSTOS DE REMEDlACrON.,...,...,...,... :.,..., DE LAS I'REGUNTASDE LAS PARTES...,...,57 4.ANEXOS 4.1 INFORMES DE LAB ORATORIO DE LA CESAQ-PUCE 4.2 CADENAS DE CUSTODIA 5.MAPAS Mapa 1.-Ubicaci6n Geognifica. Mapa 2.- Acceso a Shushufindi Mapa 3.-Fotografia aerea de 1976 Mapa 4.-Fotografia aereade 1985 Mapa 5.- Fotografia aerea de 1990 Mapa 6.-8istema Hidrogrifico. 2 I CVX-RICO Plaintiff's Exhibit 250 p. 70 of 133

71 INFORME DE LA INSPECCION JUDICIAL DEL POZ;O SHUSIllJFINDI TABLAS Tabla 1.- Reporte final de perforaci6n-materiales de lodo. Tabla 2.- Productosquimicos us ados en operaciones de reacondicionamientodel pozo Shushufindi48.. Tabla 3.- Resultados de laboratorio y comparaci6n con nonnas ambientales nacionales vigentes. Tabla 4.- Columna estratigrifica en el punta SW3 Tabla 5.- Resultados de laboratorio y comparaci6n con nonna~ ambientales nacionales vi gentes.. Tabla 6:- Columna estratignlfica en el punto de perforaci6n SE4 de Ja piscina 4. Tabla 7.- Colunma estratigrafica en ei punto de perforaci6n SE3 de la piscina 4. Tabla 8.- Resultados de laboratorioen las muestras de recurso suelo-piscina 4 y comparaci6n co:n la iegislaci6n ambiental naeionai vigente. Tabla 9.- Resultados de laboratorio y compamcion con la legislaci6n ambientalnacional vigente. Tabla 10.- Resultados de laboratorio y comparaci6n con la legislaci6n ambientalnacional vigente. Tabla 11.- Resultados de lab oratorio reportados por TEXACO. Tabla 12.- Resultados de laboratorio reportados por TEXACO. Tabla 13.- Resultados de laboratorio rcportados por TEXACO. 3 I CVX-RICO Plaintiff's Exhibit 250 p. 71 of 133

72 INFoRME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 6.FIGURAS Fjgura 1.~Contaminaci6n dt!l suelo con TPHs en la piscina 1~SH48~NE3. Figura 2>Contaminaci6n del suelo con TPHs en lapiscina3-sh48~sw3. Figura 3.-Contaminaci6n del suelo con TPHs en Ia piscina 3-SH48-SW2. Figura 4.-Colitaminaci6n del suelo con TPHserda piscina 4-SH48-SE3. Figura5.-Contaminaci6n del suelo coli TPHs en Ia piscina 4-SH48-SE3. Figura 6.-Contaminaci6n delsuelo con TPHs en Iii piscina 4-SH48-SE3. Figura7.-Contaminaci6n delsuelo con TPHs en la piscina4-sh48-se4. Figura8.-Contaminaci6n del agua con Barlo en la piscina 4. Figura 9.-Contaminaci6n del agua can Cobre en Ia piscilia 4. Figura lo.-coiltaminaci6n del agua con Niquel en Ia piscina 4.. Figura 11.-Contaminaci6n del agua con Plomo en la piscina 4. Figura 12.-Contaminaci6ndel agua con CrOllO VI en Ia piscina 4. Figura 13.-Contaminaci6n del aguacon compuestos fen6licos Figura 14.-Contaminaci6n del agua conniquel Figura 15.-Contaminaci6n del agua con compuestos fen6licos Figura 16.-Contaminaci6h del agua can Niquel. Figura 17.-Contaminaci6n del agua con compuestos fen6licos Figura 18.-Contaminaci6n del agua con Niquel. 4 I CVX-RICO Plaintiff's Exhibit 250 p. 72 of 133

73 INFOItME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 1.SUMARIO 1.1. LA DILIGENCIA JUDICIAL Se realiz6 la inspeccion judicial, en el juicio verbal sumano en el sitio denominado SHUSHUFINDI POZO 48, Parroquia: La Victoria, Canton Shushufindi" Provincia de Sucumbios, el 02 de Septiembre del En esta diligencia he sido Perito por el Presidente dela Corte Superior de Nueva Loja. SegUn las disposiciones emanadas por el Juez de Ia Causa, que constan en el Acta de la Inspeccion Judicial, escribo este informe para responder, en su coiitexto, a las preguiitas del Juez y de las partes y presentar mis eonelusiones tecnicas tomando como refereneia nonnas nacionales vigentes e intemacionales y basandome en el principio precautorio par el eual, "De Ia cuna a Ia tumba", esto es, "Quien genera. la eontaminaci6n ambiental, es responsable de Ia misma siempre". 1.2 DESCRIPCI6N DELSITIO EI Pozo SHUSHUFINDI 118 tiene Ia siguicnte ubicaci6n geognifica. (Mapa 1); E1 sitio se eneuentra ubicado a aproximadamente 200 Krn. en linea al noreste de Quito. Lugar : Campo Shushufindi Parroquia: La Victoria Cant6n ; Shushufindi Provincia: Sucumbios 5 CVX-RICO Plaintiff's Exhibit 250 p. 73 of 133

74 ~ Plaintiff's Exhibit 250 p. 74 of 133 () ~ I ;:;0 () o I --lo. o 01 ex>.j::>.. N ex> ~ Ecuador Provincia Sucumblos UbicaciOnGeogr6fica.. Provincia desucumbios CantonShushufindi Parroquia.. Shushufindi C Km fd 0 ~ 160 ffiiometen.~~--~~~~----~! ~ CJ Umiteprovihcial 30 0 Parroquid Shushufindi - ao HiIometen o Limite cantonal Cantones Costales Cuyabeno BGonz.aloPizatro _lagoaorio.putumavo _Shushufindi I:Y?k'f:;1 Sucumblos.. Palloqula _ Limoncothil..,N Ii P<1nacocha San Pedro de: los Cofanes San Roque (cab,en San Vicente)._ Shushufindl Slete de Julio ~ 'd ~... ", c,... 1;;0 (")... ~ 0- '2. ~ o ~,... (") > z ~ ~.. t:>=l d... t'"l t" > Z r:n.. ~ n (").,... ~ <:..< g n... ~. d ~ '"'= o N o I ~ '2 d ~ ~ 00.~~~ ~J~~.. \t~

75 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 ACCESIBILIDAD.A la ciudad de Shushlifindi se llega desde Lago Agrio.por cartetero afirmado cubierto de asfalto en un viaje aproxirnado de lhora Con 30 minutos. Para arribar a la ciudad de Lago Agrio puede ser por vla aereaen 30 minutos de viaje; 0 via terrestre en aproximadamente 8 horas de viaje. (Mapa 2) Mapa 2.- ACCESO A SHUSHUFINDI 48 7 CVX-RICO Plaintiff's Exhibit 250 p. 75 of 133

76 ~.~\~ t;~~ INFORME DR JA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 ' ~~!!!!!!"!!!!!!!~~~~~~~~~~~~~~~~V ~.. FOSAS ABIERTAS POR TEXACO Y UBICACIONDE LOS PUNTOS DE MUESTREO.-. Las siguientes fotografias aereas presentan Ull anajisis gcifico historico de las fosascavadas en el suelo por TEXACO. F.l sitio de esta Inspeccion se encucntra en los '. alrededores de la plataforma del pozo Shushufindi 48 en donde estan ubicadas las piscinas que no recibieron ningu.n tipo de remediaci6n. FOTO AEREA DE Se evidencia que TEXACO cavo tres fosas en tierra (Nos. 1 y 3 segun TEXACO y 5, no registrada por TEXACO). Estas fosas no estim impermeabilizadas 10 que favorece la migracion de los contaminantes hacia estratos inferiores, contanilnando suclo y agua. TEXACO vert fa lodos contaminados con crudo, desechos de cmdos de pruebas de produccion y desechos de trabajos de work over. (Mapa 3), sus coordenadas geograficas sepresentan en ei mapa geognifico de FQTO AEREA DE e evidencia que Ia fosa 1 fue parcialmente cubierta por vegetaci6n, Ia fosa 3 fue totalmente cubierta con tierra y vegetaci6n. TEXACO continuo vertiendo desechos t6xicos en las fosas 1 y 5. (Mapa 4) FOTO A RREADE TEXACO cavo en 1990 dos follas adicionales y las utilizo sin impermeabilizar para descargar lodos contaminados can crudo, desechos de crudos de pruebas de produccion y desechos de trabajos de work over. En total cavo cinco fosas en tierra para descargar todos los descchos {oxit;os. (Mapa 5). REMEDIACION. La informacion tecnica relativa a la masa total de suelo a remediar es la siguicntc: AREA TOTAL DE LAS CINCO PISCJNAS =: 5259,27 m 2 PROFUNDIDAD PROMEDIA: 4.95 METROS (Promedio de las profundidades de contaminacion, segun los perfiles estratigraficos: (5.10 m; 3.94 m; 5.80 m). VOLUMEN DE SUEW CONTAMINADO: m J DENS mad DEL LODO: 1.80 toneiadas/m 3 MASA TOTAL QUESE DEBE REMEDlAR: Toneladas desudo contarninado.. 8 I CVX-RICO Plaintiff's Exhibit 250 p. 76 of 133

77 ~ I MAPA 3 FOTOGRAFIAAEREA 1976 Plaintiff's Exhibit 250 p. 77 of 133 (l) ESQUEMA DE DISTRIBUCION DE FOSAS DE VERTIDO DE RESIDUOS DE PETROLEO. B3$adO en FotoAerea No.1246, Rollo 6 del 20 de enero de 1976 FuentelGM (") ~ I ;;0 (") o I -->. o 01 ex>.j::>.. (.V -->. evidencia que TEXACO cavo tres fosas en tierra (Nos. 1 y 3 segun TEXACO y 5, no registrada por TEXACO). Estas fosas no :~~!' t-;,- an impenneabilizadas 10 que favorece la migracion de los contaminantes hacia estratos inferiores, contaminando suelo y agua. ~ {~ ~~~ 1 CO vertia lodos contaminados con crudo, desechos de crudos de pruebas de production y desecho$ de trabajos de work ~,~. '..,~" ',:;"" ~;.:~ /~:'I 1:--.!....-.f;." <0,j ~un' "\ C.\~"""./ ;,' ~,~.../..,.:r ~,~-, -~./

78 ~ MAPA 4 FOTOGRAFIA AEREA DE 1985 Plaintiff's Exhibit 250 p. 78 of o ESQUEMA DE DISTRIBUCION DE FOSAS DE VERTlDO DE RESIDUOS 'I DE PETROLEO. Bando en FotoAerea No.44441, Rollo 213del 9 deoctubre de 1985 FuentelGM (") ~ I ;;0 (") o I -->. o 01 ex>.j::>.. (.V 1'0 la fosa 1 fue parciaimente cubierta por vegetaci6n, la fosa 3 fue totalmente cilbiel1a con tierra 'i vegetaci6n. TEXACO continuo... ~n.in desechos toxicos en las fosas 1 y 5. v G\ ~.-'" \.5'\

79 \ MAPA 5 FOTOGRAFIA AEREA DE 1990 Plaintiff's Exhibit 250 p. 79 of (") ~ I ;;0 (") o I -->. o 01 ex>.j::>.. (.V (.V o cav6 en 1 ~90 dos fosas adiciona,?s y las utiliz6 sin impermeabdiz~r para desca~ar lodos contaminados con crud 0, desechos de crudos de r-~,~{. cle producclon y desechos de trabajos de work over. En total cav6 cinco fosas en tierra para descargar todos los desechos toxicos. t,' ~ ~ ~ ~~AL DE LAS CINCO PISCINAS = 5259,27 m2 ~ ~.~ ~~ /:.. I~

80 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 Sistema hidrogrlificoei Sistema Hidrognifico corresponde al denominado Bajo Oriente que corresponde a una extensa llanura amaz6nica casi plana coristituida por terrenos de inill1daci6n fluvial de desbordamiento por corriei1tes fluviales de los rios Coca y Aguarico. Localmertte los prinoipales Rios que corren ceroa delpozo Shushufindi 48 son: a 800m al Sur el Rio La Sur que corre en direcci6n Este-N or-este;- a 250m al Este nace un estero que, se dirige al Nor-este que a SlI vez es afluente del Rio La Sur 2 Km aguns abajo en direcci6n Nor-este. Lamayoria deesteros enios alrededores del Pozo. Shushufindi 48 desembocan en el Rio La Sur,. que a gu yez desemboca en e1 R{o ShUshufindi. afluet1te. del. Rio Napo, afluente a su vez del Rio Amazonas~(Mapa 6) Mapa 6.~~ SISTEMA llldrogwico Clima y Vegetacion El sitio Shushufindi se encuentra en una extensa llanura y soporta grandes precipitaciones, en prbmedio 1600mm y su clima es nluy hfunedo, tierre una temperatura promedio de 27 C, humedad relativa de 80%, es un clima SUbtropical tipico de todo el Oriente Ecuatoriano. 12 I CVX-RICO Plaintiff's Exhibit 250 p. 80 of 133

81 INFORME DE LA INSPECCI6N JUDICIAL DEL POZO SHUSHUFINDl48 i 1.3 OPERACIONES REALIZADAS' (Fueote: File SRUSHUFUNDI48, Archlyo 'i'oonico, Subgerencia d. E.xpioiaoi6n Y DeSarrollo, PE1ROPRODUCCI6N). Inicio de perforacion: Marzo, 15 de 1974 Fin. de perforacion: Abril, 29 de 1974 Tiempo de perforacion: 12 dias Profundidad total de perforacion: 9354 pies Formacion: Napo FASE DE EXPLORACI6N.-No existen reportes de metodos y materiales usados durante la explorad6n tiuito en los archivos de PETROECUADOR como en la Direcci6n Nacional de Hidrocarburos. FASE DE PERFORACION.-Los productos quntilcos y las cantidades que utilizq TEXACO por nivelde profundidad de perforaci6n se detallan en la tabla 1. Tabla 1.-REPORTE FINAL DE PERFORACION MATERIALES DE LOnD PROFUNDIDAD TlPODELODO DE A MA TERIALES ADITlVOS UTILIZADOS ft) ft) NUMERO DESACOS COSTO DE LODO UNITARIO TOTAL GEL MILGEL io, CAUSTIC 9 14, MILFLO GEL MILGEL _.- CAUSTIC MILFLO GEL MILGEL CAUSTIC MILFLO II ~ CMC GEL SJ411 9{)04 MILGEL CAUSTIC MILFLO XC? CMC PROFUNDIDAD COSTO DE LODO TlPODE LODO MATERTALES ADITlVOSUTILfLADUS NUMERO DE SACOS DE A UNITARIO TOTAL ft} ft} GEL MIWEL 18G 1432 Rl" Barril.. ~ ~ CAUSTIC 12 MILFLO 2 CMC XCP I CVX-RICO Plaintiff's Exhibit 250 p. 81 of 133

82 ... INFORMR DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 REPORTE DURANTE LA FASE DE EXPLOTACION.-No existen reportes de procedimientos, materialesy m6todos usadosdurante la expjotacion tanto en los archivos de PETROECUADOR como en 1a DirecCion Nacional de Hidtocarburos. PRODUCCION ACUMULADA 1 Fecha: Mayo de 1987 Petr61eo: bis Agua:.1178 b1s GaS: MPC.. QUIMICOS USAnOS EN REACONDICIONAMIENTOS._En la tabla 2" se.. indican losquimicos que seutilizaron en losreacondicionamjentos Filii> SHUSHUFUNDJ 48, Archlvo TecnJco, Subgerencla de Explorat;J6n ydesarrollo, PETROPRODUCCI6N. I CVX-RICO Plaintiff's Exhibit 250 p. 82 of 133

83 INFORME DE LA INSPECCI6N JUDICIAL DEL poro SHUSHUFINDI 48 ) Tabla2.-PRODUCTOS QUIMICOS USADOS EN OPERACIONES DE REACONDICIONAMIENTO DEL POZO SHUSHUFINDI 48 Qufmicos!mate.. iales Prusha t1espues del Protlucd6n llsados Reac Fecha Op.,raci6u Workover -Acumulada # P"el~ieo Agu' tio, BS&A Nombre Cantidad BPPD RGP 'r, (bls) (lib) Me Acidificaoi n de """'os "U'; y "T" 8010l/ flJ 03 85/OSJ29 04 Aislar entrada -de _...gua por -las piiibraoione No realizan prueba --,nforiom, d. Oren. "T" Sacor I. satta de compleraci6 n PrOMr interval os de N~po hu~1 Y '~T'~ Muerta Evaluaci6n pendiente Agua salada Agua salada Evaluar JP-I 820bls arena ''"02'"'', P 4G 167 gl~!;ajar 8610,M< 05 98% 30 - XT gls instaladon Sp dmms ol"o"'c. sumergible - MorfioH 8.5 #/gal 3610$ l1S (H SIOili1i 09 SIlI Repanr oornb. olt<:trica 8umergible Reparara iristal<lci6n eljctri"" "nmergihle Reparar 30% Loourf 30% % 9() im!al.ci6n ol.!ctrica sumergible Fuente: FIle Shushufind! 43, Archwo Tt<:mto. Subgerencla d. ExpioraCl6n y Desarrolto, PETROPRODUCcr6N. INSTALACIONES.-De confonnidad con el acta de inspeccion en ese momenta se identifico que habia 10 siguiente: El cabezai; pastes y Ifneas de conauccion el6ctrica. 15,~ CVX-RICO Plaintiff's Exhibit 250 p. 83 of 133

84 INFORME DE LA INSPECCI6N JUDICIAL DEL POZO SHUSHUFINDI 48 EQUIPO DE PERFORACION Y METODOLOGiA DE MVESTREO. Se utiiiz6 un taladro a percusi6n llamado SPT"Standar Penetration TeSt", en itigies el eual consta de una pequeiia toite de perforaci6n. EI equipo en general eonsta de las siguientes partes: Trlpode ( 5m de altitud) Una po lea con cable manila (12m) Martillo para golpe de 65 Kg. Un motor a gaso1ina de 8 HP de potencia Tubo porta testigos 0 cucharas de O.85m de longitud x 2 pulgadas de diametro exterior para recuperar muestras indisturbadas. Varilla guia y cabeza de golpe. Tambien se utiliz6 para esta Inspecci6n un Uiladro manual (Auger). Las coordenadas de los PERFORACION COORDENADAS GEOGRAFICAS SH48-SW3 LATITun LONGITUD 0" 14' " S 76"38' " W SH48-SE4 LATITUn LONGITUD 0" 14' " S ' " W SH48-SE3 0" 14' " S ' " W SH48-N3 0 14' " S 76 38' " W SH48-SE5 0 14' " S 76 38' " W puntos de perforaci6n son las siguientes La infonnaci6n de 1a Geologia Local se ha obtenido en base a tres perforaci ones con Taladro a Percusi6n, y una perforaci6n con taladro manual (Auger) realizadas durante la Inspecci6n Judicial. Hi CVX-RICO Plaintiff's Exhibit 250 p. 84 of 133

85 i INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI RESULTADOS 2.1 PISCINA DEL ESTlIDIO GEOLOGICO TIPO DE SUELO OBSERV ADO. TIl suelo esta coil~lituido por estratos limo - arcillosos de color cafe mezc1ado con raices sin olor ahidrocarburo; troncos de madera; estratos limo - arcillosos de color gris con olor a hidrocarburo mezclado con troncos de madera. Se observa ademas tramos ge arcilla de color gris can olor a hidrocarburohasta el final de 1ft perforacion, esto es, hasta los 2.0m de pro fundid ad. No se llego al nivel de agua en esta Piscina. DESCRIPCION LITOLOGICA EN EL PUNTO SH48-N3. La litologia observada del suelo es la siguiente. D.Om a 10m Suelo vegetal cafe can raices O.lm a l.om Limo arcilloso cafe, ph'istico con troncos de madera 1.0m a I. 17m Tramo de arcilla gris can olor a hidrocarburo L17m a 1.78 Limo arcilloso cafe con tramos de arcilla gris con alar a hidrocarburo, con restos de madera. 1.78m a 2.0m Arcilla limos a cafe claro con tramos de arcilla gris con olor a hidrocarburo DEL LABORATORIO ANA.LISIS DE LABORATORIO. La tabla 3.- presenta los resultados de los anilisis qufmicos realizados en las muestras de suelo de la piscina 1 y de confonnidad con 10 indicado en e1 numeral 1.1, utilizo como referencia las siguientes leyes vigentes: Texto Unlficado de Legislacion Ambiental, expedido mediante Decreto Ejecutivo No publicado en el Registro OOcial de 30 de marzo del Reglamento Ambiental para Operaciones Hidrocarburiferas en el Ecuador, expedido mediante Decreto Ejecutivo No de 2 de febrero del 2001, puhlicado en el Registro OficiaJ No. 265 de 13 de febrero del CVX-RICO Plaintiff's Exhibit 250 p. 85 of 133

86 INFORME DE LA INSPECCION.JUDICIAL DEL POZO SHUSIIUFINDI 48 Tabla 3.- RESULTADOS DE LAB ORATORIO Y COMPARACION CON NORMAS AMBIENTALES NACIONALES VI GENTES (numeral 1.1) SHUSHUFlNDI 48 COORDENADAS GEOGAAFICAS: SH48 NJ: LATITUD, 0"14' " S Unidad Co ncentrael6n: PISCINAI LONGITUD. 76 3$' " W mg/kg SUELO LEGISLACION EXCESO METODO SH48-N3 l'rofuntl i da d: meit""os 10-1,20 DEcRETO DECRETO DECRETO DECRETO FECHA DE INSPECCION: 09/ ANALISIS No.12IS No.3516 No No METALES Barjo 8M 3~(){) Ro <0,1 750 Cadmio USEPA 7000 <0,1 <I 2 Cobr. USEPA ,2 63 NJquel USEPA ,6 <40 50 Zinc USEPA ,2 200 Promo USEPA ,5 < C...,moVI SM 3500 Cr <0,1 0,4 HIDROCARIlUROS DE PETROLEO TOTALESj'I'PH~ TPH < DRO EPA GRO EPA8DIS <so BTEX Beneeno EPA 8260B <0,005 0,05 Tolueno EPA 8260 B <0,005 0,1 EtUbenceno EPA 8260 B <0,005 0,1 Xyleno EPA 8260 B <O[J05 0,1 HIDROCARBUROS AROMA TICOS POLIciCLICOS (HAl's) HAPs <1 <2 BENZO(atpIRENO EPA 8270 <0,5 0,1 BENZO~)FLUORANTENO EPA 8270 <O,S BENZO(K)FLUORANTENO EPA 8270 <0,5 BENZO(g,h,i)P"rU.". EPA 8270 <O,j FLUORANTENO EPA 8270 <0,5 JNDENO(l,l,3-cd)PIRENO EPA 8270 <O,j " Laboratono responsable del anmlsi":. CENTRO DE SERVICIOS AMBIENTALES Y QUIMICOS DE LA PONTIFICIA UNIVERSIDAD CA T6L!CA DEL ECUADOR CESAQ-PUCE INFORME CESAQ--PUCE No.04S S2-04. Recepci6n de muestras: 15/09/04. Analisis de muestras: 16-30/09/04 18 I CVX-RICO Plaintiff's Exhibit 250 p. 86 of 133

87 INFORME DE LA INSPECCI6N JUDICIAL DEL POZO SHUSHUFINDI 48 DISCUSION DE RESULTADOS TPHs. La muestra de suelo de la PISCINA 1, evidencia estar contaminada con los t6xicos TPHs, en eoneentraciones que sobrepasan aproximadamente 2 veces la norma eontenida en el DECRETO No.12lS. Para efeetos de elaboraci6n del gn'ifieo de comparaci6n, se ha tomado, de la Legislaci6n pertinente (Decreto No. 1215), el valor inmediato inferior a1 de 1a toleraneia que esta estipula para TPHs y que es <1000, por 10 eual el valor de referencia en la grafica es 999. SUELO. PISCINA 1 RANG 0 DE PROFUNDlDAD CONCENTRAcrON DECRETO PROFUNDIDAD MEDIA DE TPHs No. 12lS (m) (m) (me/kg) (mg/kg) 1,0-1,2 1, <1000 Figura 1.-CONT AMINACI6N DEL SUELO CON TPHs EN LA PI$CINA 1-SH48-NE ~~~ , 2700 TPHs SOBREPASA ~ ~--~-~r~~nRG*~.:~ = VECES LA ~ NORMA "C I::: '0 'u DECRERTO No j;: ~--_~ ~ c B 6 (.) <1000 Profundidad Media 1,1 m ICJTPHs ICJDECRETO No CVX-RICO Plaintiff's Exhibit 250 p. 87 of 133

88 INFO.RM:EDE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI PISCINA DEL ESTUDIO GEOLOGICO TIPO DE SUELO OBSERV ADO. De acuerdo a 10 observado en la perioraci6n, se puede interpretar que la secuencia de los estratos a capas son irregulares, en donde se tiene la presencia de an::ii1as cafes en tonos claros y oscuros, limos de color cafe can tonos grises arenosos que es la parte 0 zona donde se advierte la presencia de contaminaci6n con hidrocarburos; tambien hay presencia de arenas de granofino a medio. La contaminacion es observable en casi todos estratos perforados. Inclusive hasta el final de la perforacion a la profundidad de 5.IOm., en donde se encuentra un limo arenoso. Es evidente que el sitio donde se realizaron las perforaciones fueron unas piscinas mal remcdiadas y en algunos casos no recibieron ningun tipo de tratamiento. A partir de los 4.1m el suelo es mas blando, segun el nfunero de golpes (3) en esta maniobra. En base a la distribuci6n irregular de las capas seaprecia que la zona de SH48 SW3 es un relleno, material depositado can equipo pesado. NOTA: En est a piscina se realiz6 un traslape de 25cm al Sureste de SH48 SW2 por perdida de muestra en el tramo entrel, 70 a 2.55, al punto SH48-SW3. DESCRIPCION LITOLOGICA EN EL PUNTO SH48-SW3. La litologia observada del suelo es la siguiente (Columna estratigrafica en el punto SW3). Rango de profundidad de perforacion (m) Descripcion del suelo O.25m a O.70m Arcilla limasa, cafe, seeo, poco plastico O.70m a O.85m Arcilla cafe seca oseura piastica. O.85m a 1.31m Limo arcilloso cafe, seeo, pi1'istico 1.31m a2.0m Arcillo limo so cafe, seeo, plastico 2.0m a 3.0m Limo arcilioso, cafe, seco, plastico 3.40m a 4. 10m Arena limosa cafe, seco 4.1m a4.25m Arcillo rimoso cafe 4.25m a 4.85m Limo arenoso humedo, poco plastico. 4.8Sm as.lm Limo arenoso humedo, poco plastico, a la base se encuentra una arena gruesa. CONTAMINACI6N. En est a Piscina casi tados los estratos presentan contaminaei6n, segun los registros de perforaci6n. La contaminaci6n se observa principalmente en limos arenosos-arcillasos con tramos grises, que es dande los niveies de contaminaci6n son altos. Se detalla a continuaci6n 1a cantaminaci6n observada por tranlos de perforacion (Columna estratignifica en el punto SW3: Tabla 4) 20 I CVX-RICO Plaintiff's Exhibit 250 p. 88 of 133

89 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 Tabla 4.-COLUMNA ESTRA TICRAFICA EN EL PUNTO SW3. 21 I CVX-RICO Plaintiff's Exhibit 250 p. 89 of 133

90 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI DEL LABORATORlO.-Aniilisis de iaboratorio. La tabla 5 presenta los resultados,de los anlliisis quimicos realizados en las muestras de suelo de la piscina.3 Tabla 5.-RESULTADOS DE LABORATORIO Y COMPARACrON CON NORl\iIAS AMBIENTALES NACIONALt:S VIGENTES (numeral1.l) Unldw Conc~~m PlSCINA. J Mg/k. SUELO l G1MA{;I{)N EXCESO Mm:ODO SH48-SWJ S'a4a-SWZ SH4S.SW' SH48-SW3 Pl'(lolim~ldad= metros- 08:5_1,:31 1;1"',3 1,37-1 '1 4,!iO~5,l P~CRETO IIECREro DECRl;~ l'eciia DE INSrECCI6N, ()W(l!)no04 Q9fCl.9n604 O!WO:!) o9lo~.20m ANillsIS BSl:r1(11 SM 3;500Ba <01 <0,1 <ii,1 ",,0,[ 7'. C~.dIJlI(> 1!SBPA?OOQ <:0.1 <:U,I <0.1 <01 <I 2 C-ublO! 1!SBPA >.' J:],? n,7 ;,,0 ~, Mut-l USl3l"A1000 9,9 lj,~ 10 <'AO S() Z\n, USBrA701JOO 3U 36 < ~:l,7 '<,< 200 l'lomo USEPA7(lOO 1M 33 " 10 <8() 100 c.n:nnll) Y1 SM3,()(ICt 0.33 <0,'.,3. <ii.1 0.' No.U U: Na.J.'sHi N(4lJlS TPH~ :z~oo :.ZOO(J "/ <l000 1,5 PRO EPA 001' 2SilO >0 0<0 GRO EtA E101S <:>0 <5(J <'50 <50 ~. EPAII:~M'R <n..m~ ~.OO5 -«1,00':;; -':;:O~(lO,.'i 0,0> 'rolueno BPA S~<itJB <0"00:5 <O~O> <0,00' 6,[ EUlbem::enll EPAItl60l< 00l? <OJPOS <0000-0,013.,' ~""~ EPA B2QOB O,OJI 0,013 <0,005 0,03' 0,1 HAp!, <I <Z B."W[.lPIUNO El'A 6:270 <OJ, <:U,S <OJ,S <{I,j 0,' BENZQ(b )FLUOlW'OTENO EPA $270 <0:> <OS "0,5 <0,> BENZO(l<)'LUOlW'OTENO EPA a270 <0,5 <05 <05 <ii.5 "ENZO(.,h.c)P,r1l<nO EPA 8270 <05 <0,5 <><,..::.o,s nuollan'feno EPA scm <0,< <05 lnden<>'(i,'''' '''')PlRENO EPAS2)O <O.S <0':; "".' «),5 "'" <05 Laboratorio responsabl" del amilisis; CENTRO DE SERVrCIOS AMBIENTALES Y QUlMICOS DE LA PONTIFICrA UNIVERSIDAD CA muca DE ECUADOR, CESAQ-PUCn INFORME CESAQ.PUCE No , Recepd6n de muestras; 15/09104 Anilisis de mueslras: 16-30f09/04 22 CVX-RICO Plaintiff's Exhibit 250 p. 90 of 133

91 INFORME DE LA INSPECCI6N JUDICIAL DEL POZO SHUSHUFINDI 48 DISCUSI6NDE RESULTADOS. TPHs.-La muestra de suelo tomada en un rango de profundidad de 0,85 a 1,31 metros de 1a PISCLNA 3, eyjdencia estar contaminada con Hidrocarburos de PetrOleo Totales (TPHs), en concentraci6n que sohrepasa aproximadamente 1,5 veces e1 DECRETO No. 121:1, R.O, No. 265 de 13 de Febrero de RANGO DE PROFUNDIDAD CONCENTRACION DECRETO PRO FUNDIDAD MEDIA DE TPHs No ~m~ (m~ (mg/kg) (m0kl!:) 0,85-1,31 1, <1000 Figura 2.-CONTAMINACION DEL SUELO CON TPHs EN LA PISCINA 3, SH48-SW ~----. UI :r D TPHs I- 4> 2000 S08REPASA 'l:i~ I::: 0> N LA NORMA '0 "'" ';:;a 1,5 VECES DECRETO,S.. No.1215 I::: 1000 <II <) <1000 I::: 0 U 0 Profundldad Media 1,08 m IJTPHs a DECRETO No I CVX-RICO Plaintiff's Exhibit 250 p. 91 of 133

92 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI TPHs.-La muestra de suelo de la PISCINA 3, tomada en un rango de profundidad de 1,20 a 1,30 metros, evidencia estar contaminada con los t6xicos TPHs (HIDROCARBUROS DE PETROLEO TOTALES), en concentraci6n que sobrepasan una vez el DECRETO No.I2IS. RANGO DE PROFUNDIDAD CONCENTRACION DECRETO PROFUNDIDAD MEDIA DE TPHs No.12IS (m) (m) (mg/kg) (mg/kg) 1,2-1,3 1, <1000 Figura 3.-CONTAMINACION DEL SUELO CON TPHs EN LA PISCINA 3, SH4S-5W ~-~----~--_- ---, ;;; -a... ~ 2000~~ ~ ::r:: 0.. I m ' TI'Hs SOBREPASAN LA NORMA 1 VEZ ~ DECRETO U No g I ,----,---r----,----c-~ 8 o = U <1000 ol--~ ~ ~ J- ~ prorundidad Media 1,25 m iotphs 10 DECRETO No CVX-RICO Plaintiff's Exhibit 250 p. 92 of 133

93 ,I ~ r~, ~ INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 ~ \j 2.3 PISCINA 4 ) PERFORACI ON CODIGO SH48-SE DEL ESTUDIO GEOLOGICO TIPO DE SUELO OBSERV ADO EN PERFORACION C6DIGO SH48-SE4 SegUn 10 observado en el sondeo so advierfe Ia presencia de arcillas cafes, arcillas Hmosas cafes, limos arcillosos cafes, limos arenosos. La contaminaci'6n con hidrocarburos se 1a puede apreciar claramente en la secuencia de arcillas limosas, limos arcillosos; la contaminaoi6n se presenta en forma de vetillas, nodulos o concreciones de LO a 2.0cm de diiimetro a 1a pro fundi dad de 1, 7m a 204m. En el tramo entre 3.68m a 3,94m la contaminaci6n sepresenta en10s limos arcillosos arenosos. EI olor a hidrocarburos es fuerte en todos los tramos perforados. Al final de Ia perforacion en Ia Ultima maniobra se percibe un olor a qufmico. j " -' El sitio de perforacion SA94-SE4 al parecer es el borde de Ia piscina. Esto se puede comprobar con Ia perforaci6n SA94.SE4, don de existe mayor presencia de elementos contaminantes a mayor profundidad, 10 que se puede considerar como Ia parte central de la piscina (tabla 6) DESCRIPCION LITOL6GICA EN PERFORACI ON CODIGO SH48-SE3. La litoiogia observada se detalla en Ia columna estratignifica de Ia tabla I CVX-RICO Plaintiff's Exhibit 250 p. 93 of 133

94 INFORME DE LA INSPECCI6N JUDICIAL DEL POZO SHUSHUFINDI 48 Tabla 6.-COLUMNA ESTRATIGHAFICA EN EL PUNTO DE PERFORACION SE4 DE LA PISCINA 4.r/' 26 CVX-RICO Plaintiff's Exhibit 250 p. 94 of 133

95 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 )., / \ / ) PERFORACION CODIGO SH48-SE DRT, RSTUDIO GEOL6GICO.-Segtin 10 observado en los nucleos de perforaci6n en este sondeo, se tiene una distribuci6n irregular de los estratos, En este sondeo en grari parte de la columna estratigcifica se hallaevidencia de agentes contaminantes a partir de los 1,55m de profundidad hasta casi el fin de la perforaci6n a S,8Sm, El nivel freatico esta a 4,7m deprofundidad (tabla 7). La contaminaci6n por hidrocarburo es visible en los limos arcillosos, y limos arcillosoarenosos, en forma de vetillas,horizontes grises,yen fonna de fragmentos 0 granular con diametros de hasta 1,Ocm, el olor es fuerte caracteristico de los hidrocarburos. DESCRIPCION LITOLOGICA EN PERFORACI ON CDDIGO SH48-SE3. La litologia observada del suelo es la siguiente. Rango de profundidad de Descripcion del suelo perforaci6n (m) O,Om a O.85m Suelo vegetal can materia organica, cafe, poco humedo. Aroilla limosa cafe, humeda poco plastica. O.85m a 1.55m Limo arcilloso cafe-gris, humedo, plastico L.SSm a 1.7m Limo arcilloso gris, muy hfunedo. 1.7m a 2.28m Limo arci!loso, phls_!~co. 2.28m a 255m Limo arcilloso arenoso color gris oscuro, a1go compacto y granular. 255m a 3.05m Limo arcilloso cafe-gris 3.0Sm a 3 AOm limo arcilloso arenoso color gris, alga compacto, poco h hfunedo 3.4ma 4.2Sm limo arcilloso arenoso cafe; humedo con pequefios puntos blancos. 4.25m a4.45m Limo arcilloso cafe, hiimedo. 4.4Sm as.lm Limo arcilloso caf6 con tollos grises enpequdius lramos, muyhumedo. 5.1ma 5.85m Limo arcilloso cafe COll.tramos u horizontes arcillas grises. Casi a1 final perforaci6n a 5.8Sm se observa una vetilla 6xidos hierro 2mm espesor. 5.85m a S.95m Limo arenoso cafe claro, hfunedo con l'...eguefios puntos blancos. 27 I CVX-RICO Plaintiff's Exhibit 250 p. 95 of 133

96 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 Tabla 7.-Columna ESTRA TIGRA.FICA EN EL PUNTO DE PERFORACION SE3 DE LA PISICINA 4. CVX-RICO Plaintiff's Exhibit 250 p. 96 of 133

97 INFORME DE LA INSPECCrON JUDICIAL DEL POZO SHUSHUFINDI 48 CONTAMINACI6N. La contaminaci6n se observa en algunos estratos a diferente profundidad (Columna estratignmca en el punto SE3 de la Piscina 4. (Tabla 7) En el interior del sondeo los niveles 0 tramos contaminados de los estratos se presentan en forma de vetillas, horizontes grises, fragmentos, 0 n6dulos blisicamente en los limos arcillosos, y limos arcillosos-arenosos, a la profundidad 4.45m los limo arcillo-arenosos esuin completamente saturados. Al final de la perforaci6n en los ultimos O.lOem se encuentran vetillas de OXidos de hierro de 2mm de espesor sobre un estrato de limos arenosos cafe claro can unos puntos blancos de origen qufmico. EI nivel fre.itico en SH48-SE3 esta a 4.7m de profundidad, y en SH48-SE4 a 4.5m de profundidad DEL LAB ORATORIO. RECURSO SUELO. La tabla 8 presenta los resultados de laboratorio obtenidos en las muestras de suelo tomadas en la piscina 4 29 CVX-RICO Plaintiff's Exhibit 250 p. 97 of 133

98 ~ INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSlllJFINDl48 Tabla S.-RESULTADOS DE LABORATORJO EN LAS MUESTRAS DE RECURSO SUELO PISCINA 4 Y COMPARACrON CON LA LEGISLACION AMBIENTAL NACIONAL VIGENTE Plaintiff's Exhibit 250 p. 98 of 133 SH48-SE3 SH48 SE4 CDORomAOAS IlEDIlRAFlCAS: latituo; og 14' " S IloNmruD: 76' 3B' S4" W ILATITUD: O! 14'17.SS2B!lr,S IloNmruO: 71l~ 38' W U niidan I:on~entracilin: P!S~INA 4-SUELD,,lEmSlAI:IIlN IXCESO I SH4B-SE4 SH411 SEJ SH411-S 4 SH41!-SE3 SH48 SE3 SH485 4 S048 SE3 SH4B SE3 Prllfundidad: mlllrds MHnOD L5D-L70 1, UD-ZAD 2,28-2, ,05 3, , ,50-5,81l DECI1ETD jllecretd DECR l!i DECREJD FEl:HA DE INSPECCIDN: 13/1l9l2UD4 14/D /D81201l4 14/0812D DS12D B12004 I4IOBJ2D AN.lllSIS NiI.121S No No Nil Bal'io simoo Ba <U,I ,4 132 <0.1 IB~.5 65.S < i Callmiu USEPA700ll <0.1 <ll.l <0.1 <0.1 <OJ <0.1 <OJ <OJ <I 2 Co1lre U~EPA7ll[]o ,2 36, ,5 B3 Niquel U3EPA10nO < <OJ 3.3 <OJ <0,1 6.6 <0,1 <40 5D Zin'~ USfPA70UO S nj 2DO PJama USEPA7UOO G.B B.S s,e S.S B!l.S Ii.& <SO 1]0 Crllmo VI SM3500 Cr 4U <0.1 <0.1 <0.1 <0.1 <!l.l <OJ < TPlls UIl IGIlO 5400 < DRI] EPA 8m5 220?BOO 171m 1600 ~40D <50 GRI] EPA 8015,~O <50 <50 <50 <50 <50 <50 <50 Berl:~nD EPA 8260 B <L005 <O.ODS <0.005 <0.005 <O.OD~ <0.005 <[1.005 <0, TO[1J2nO EPA B260 B <U05 <ll.lms <0.005 <0.005 <D,ODS <0.005 <0.005 <1l,D05 OJ I Elilhnceno EPAmO 8 <0.005 ~D.OO5 <D.005 <0.005 <0.005 <0.005 <D.UDS, Xylimo EPA 826D B <O.OITS ~.008 <0.005 O.OOB O.lll <0.005 <IT.ITOS <O,UOS 0.1 HAFls <I <2 BWZD(a)PIRENIl EPA 3270 <[5,0:5 <0.5 <0.5 <0.5 <0.5 <1l.5 <0,5 0.1 BENZU(b)FWDRANTENIl EPA 8270 <[5,0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 BENlll(K) FWD RANTE~ II EPA 8270 <[5 <0.5 <0.5 <0,5 <0.5 <0.5 <0.5 <0.5 BHlZD(g.h.ilPeriklnu EPA S27D <0.5 <U.5 <0,5 <0.5 <0.5 <U,5 <0.5 <u.5 flu IlRANTE ND EPA 8270 <Il.S <D.:! <0.5 <O.S <0.5 <0.5 '15 <0.5 I JII[l:[ND(1,2.S-cd)PIREHO EPA B270 <0.5 <0.5,- <0.5 <0.5 _ ~5 ~- <0,5 - ~5 -- (") ~ I ;;0 (") o I -->. o 01 ex>.j::> '0 Fuente: Labontorio respomable del lnalisis CENTRO DE SERVICIOS AMBIENTALES Y QUlMICOS DE LA PONTIFlCIA UNNERSIDAD CATOLlCA DEL ECUADOR CESAQ PUCE, INFORMS CESAQ-PUCE No. 04SI-C4.(l Recepci6n do mueslras: 15109/04. Anali,is de mue;trn,; 16-3Q/09.Q4 -S~?~ 'R.~ J~ ~ 30 ~~~~~~-~ 10.)

99 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 DISCUSION DE RESULTADOS. TPHs.- La muestra de suelo de la PISCINA 4, profundidad ( ) evidencia estar contaminada con los t6xicos TPHs, en concentraci6n que sobrepasa aproximadamente 7 veces el Decreto (Figura 4) RANGODE PROFlINDIDAD CONCENTRACION DECRETO PROFUNDIDAD MEDIA DE TPHs No (ru) (m) (rug/kg) _(mg/kg) 1,55-1,70 1, <1000 ( Figura 4. CONTAMINACI6N DEL SUELO CON TPHs EN LA PISCINA 4, SH48-SE3 ~0r ;fi OOCJI ;::====::::::; i j7000~---r~7n80~ ~ 0. goooo~--_r----_1----~~ ~., TPHs :c SOBREPASAN LA ~ 5000 ~ nlvr.m"...,.."ua. ~ VECES,g U 3000~---~----_ ~!l " i i d"'e"'c"'re"'t"'o.----i No. 1215,ooo~--_+---_ r I.;1000 I Profundidad Media 1,6 m II!ITPHs I_ DECRETO No.1215 I 31 CVX-RICO Plaintiff's Exhibit 250 p. 99 of 133

100 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 TPHs.-La muestra de suelo de la PISCINA 3, profundidad 2.28 a 2.55, evidencia estar. contarninada con los t6xicos TPHs (HIDROCARBUROS DE PRTROLEO TOTALES), en concentraci6n que sobrepasan aproximadamente 0,6 veces eldecreto No (Figura 5). RANGO DE PROFUNDIDAD CONCENTRACION DECRETO PROFUNDIDAD MEDIA DE TPHs No (m) (m) (m!vkg) imgikg) 2,28-2,55 2, <louo Figura 5. CONTAMINACION DEL SUELO CON TPHs EN LA PISCINA 4, SH48-SE3 m ~ , ~.. '" 1600 TPHs 1i: SOBREPASAN LA DECRETO I- NORMA 0,6 No.1215 ~ 1~~ ~~~~ ~ ~ <: ~ 1: i'l u ProfLmdldad. MedIi> 2,4 m jmtphs! LO DECRETO No CVX-RICO Plaintiff's Exhibit 250 p. 100 of 133

101 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSIDJFINDl48 TPHs.-La muestra de suelo de la PISCINA 4, profundidad, 2.75 a 3.05, evidenci& estar conlaminada con los t6xicos TPHs, en concentraci6n que sobrepasan aproximadamente 4 veces el Decreto (Figura 6) RANGODE PROFUNDIDAD CONCENTRACION DECRETO PROFUNDIDAD MEDIA DE TPHs No. IUS (m) (m) (mg/kg) Jm,:dke") 2,75-3,05 2, <1000 Figura 6.-CONTAMINACIO DEL SUELO CON TPHs EN LA PISCINA 4, SH48 SE3 ~~, , ]i 5(JO~ s. ~_iitl",&--i ~ ~ G TPHs :~.~---r----r'~~ubirep~ if NORMA APROX. 4 '; 3000 VE CES " "0 e l2000., o U,000 -j _. Profundidad Media 2,09 DECRETa No.1215 I <1000 I jotphs jodecreto No CVX-RICO Plaintiff's Exhibit 250 p. 101 of 133

102 INFORME DE LA INSPECCION JUDICIAL DEL POW SHUSHUFINDI 48 TPHs.-La rnuestra de suelo de la PISCINA 4, profanidad 2.20 a 2.40 metros, evidencia estar contaminada con los t6xicos, en concentraci6n que sobrepasan aproximadamente 1 vez el DECRETONo (Figura 7) RANGO DE PROFUNDIDAD CONCENTRACION DECRETO PROFUNDIDAD MEDIA DE TPHs No (JJ1) (m) (mgf~) (m /kr;j 2,20-2,40 2, <1000 Figura 7.-CONTAMINACION DEL SUELO CON TPHs EN LA PISCINA 4, SH48-SE4 ~~ ~ 17C1C1 TPHs SOBREPASAN LA N HORMA :J: a.. '" DECRETO I- APROX.1 VEZ No.1215 ~ 1000~---~----~ r---~ -0 " i '" " o o <1C100 Profundidad Media 2.3 m o TPHs I o DECRETO No. 121S 34 I CVX-RICO Plaintiff's Exhibit 250 p. 102 of 133

103 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI48 RECURSO AGUA. La tabla 9 presenta los resultados de lab oratorio obtenidos en las muestras de agua de la piscina 4. Tabla 9.-RESULTADOS Y COMPARACION CUN LA LEGISLACION AMBIENTAL NACIONAL VIGENTE SHl.1SHUFlND[ 48 COOR,OENAD/cS GEOG1<AFlC..s, SH"-SEJ, LAT1'rUD~ &- 14' 1'?,46t:l0-54 ft is LONGlTUO: 7~ J..6:) ] 2.62l94~ W (;IllJ.d:a.dCiI)I)Ct"r:I!raCl6-n: """ PN(lIl1dhiii(); meu'(js 47,I PlSClNA4 "CU, SH4&-8.E-J LEC]Sl.AC[ON EXC~SO mercia OE INS.P;I::CC[6N; t2004 DECllE'I'O DECRETO I OECR TO Dli::CRETO ANALISIS, METODO Na.UI5InDl. NQ.JS16 era No..ll]SInm. No Cioml"rl:!: $M4500CIB...:;3,0 250 CI)J1.duetivld~d I)S/~rn SM:25101;! 100,4- <170 METAU:S IJillriO SMJSOOBa (1.1 Ca,,:lmia- USEfAJOCL') <1>,1 a,oo. 0, !:I06 EPA COO" USEPA 7000 '.6 1 1,3 I,., I", Nl lloli!l \JSerAJOO;l J,9./},01S 70 'Zin..:; USIlPA ,9 110rno USH:PA7()()() 1 0,05 J9 CromOYI 8M HOOCr O,3J Lto~ I... HlllROCAR6URDSTOTALES DRPETROLEO TPJ.:ls. 'rpu!i <0.5 0,5 DRO EPA:S01:5 <0.' ero EPA 3015 O.t2 BTEX 5~1<<<:lIo EPA8l60B «I,M2 O,CH 0,00; Tl).llIeno RPA8UO~ <I>,M2, EtiltJer1OfnO EPA:lj:26(J:B <0.00-2: 07 X}'kM BPA 826t1B «I.O<l:I 10 II"... HlDROCARBUROSA'ROMATICOS POLlclcLICOO JfAh <{I,00<)3 BEN2(lO }PlRENO lipas270 ~,0002 O,(H):)(Jo] BllNWjb )FJ.UORANUNO EPAS2JO < B~NZO(K)ll'J...VORANTENO EFA3210 <1).000> BENZQ(g,h,I)PElULENO ~A8liO <O-.(\()[I2 FLOORANTENO EPAS1:70 L«>..oon INDENO J,!.J-<!IJPl RENO EPA9::pO <().ooo.2 Labor.roM,esponsalJle.de1 ".lis;" CENTRO DIl SllRVICIOS AMl'IlBNTALES Y QU1MlCOS DE LA PONT!FIClA UNIVERSlDAD CAT6L!CA DE ECUADOR. CESAQ PUCE. JNFORME CESAQ-PUCE No. 04SHl~ ()4. Reeepci6n de "",.,,,..,! , An"i,;, demuoolr.,,16 30fQ9/04 DllCRETO No. 121' ONMJSI6N); cont;on< 01 REGLAMBNTO AMDIENTAL PARA LAS OPEKACJONE HlDROCARBURiFERAS tu ol BCUADOR, publioado en 01 REG1STRO OF1CIAL No, 265 do n de feb,.", de 2001 DECRETO No. 3516'COD,ie oj TEXTO UNIPICADO DIl LEGISLACION SBCUNDARIA DEL MJNlSTERlO DEL AMB1ENTIl, Torno I, pub!1.. do eo el REGlSTRO OFlC! AL No. 7:<5 d. t 6 d. dlciomb,c do 2002 Ageucy ProtecHOIl Environmental ofilie Ullttcd Statcs, (Agenda de P~otetci6n Ambiental de los :&tados Unloos) '>'" JJ CVX-RICO Plaintiff's Exhibit 250 p. 103 of 133

104 DISCUSION DE RESULTADOS. BARJO.-La muestra de agua de la PISCINA 4, evidencia estar contaminada con el t6xico BARIO, en concentraci6n que sohrepasa aproximadantente 1 vez el DECRETO No (Figura 8). PRO FUNDIDAD CONCENTRACION DECRETO (ro) DEBARIO No.3516 (ml!:fl) (mwl) 4,7 1,7 1 Figura 8.-CONTAMINACION DEL AGUA CON BARIO EN LA PISCINA 4 'a; g 1,7 BARIO SOBREPASA.~ APROX.1 VEZ LA OECRETO c) NORMA No ~ 'r---~~-----r '-----"---1 c.q 'i3 r! 1: 8 c o U Profundfdad 4,7 m robario 10 DECRETO No CVX-RICO Plaintiff's Exhibit 250 p. 104 of 133

105 INFORME DE LA INSPECCI6N JUDICIAL DEL POZO SHUSHUFINDI 48 COBRE.-La muestra de agua de Ia PISCINA 4, evidencia estar contaminada con el toxieo COBRE, en concentraci6n que sobrepasa aproximaciamente 3 veces eldecreto No y aproximadamente 2 veoes Ia especificacion de Ia norma EPA. (Figura 9) PROFUNDIDAD CONCENTRACION DECRETO EPA (m) DECOBRE No (mg/l) (mg/i) (mg/i) 4,7 3,6 1 1,3 Figura 9.-CONTAMINACION DEL AGUA CON COBRE EN LA PISCINA 4 4r ~ ). e ~~~~u~bki~,~~;""~~.m~ml-i~--~----~~c~o~a~re~j~&m~1~a!/~f ---- E" '" 8 AP~~X~;~cAES APSRO~X~;P~~s '" LA NORMA LA NORMA ~ f-----'-.' ~ l :g DECRETO EPA ~ No ~ 1 ~--!-----~f-----, I ~ ~-I 8 OJ -L ~~ ~ L L ~ J Profu n d ldad 4,7 m IOCOBRE 10 LEGISLACJON 37 CVX-RICO Plaintiff's Exhibit 250 p. 105 of 133

106 INFORME DE LA INSPECCI6N JUDICIAL DEL POZO SHUSHUFINDI 48 NiQUEL.-La muestra de agua de la PISClNA 4, evidencia estar contaminada con ell6xico NiQUEL, en concentraci6n que sobrepasa 75 veces e1 DECRETO No. 3516_ (Figura 10) PROFUNDIDAD CONS;ENTRACION DECRETO (Ill) DENIQUEL N().3516 (mgll) (liigtl) 4,7 1,9 0,025 Figura 10.-CONTAMIINACION DEL AGUA CON NIQUEL EN LA PISCINA 4 2 1,9 NIQUEl SOBREPASA 75 VECES LA NORMA o Profundidad 4,7 m 0,025 DECRETO Nc>.3516 DNIQUEl.OECRETO No CVX-RICO Plaintiff's Exhibit 250 p. 106 of 133

107 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 ~ '52-~4A ~~~~~~~~~~~~~~~ '1 IJ, PLOMO.-La muestra de agua de la PISCINA 4, evidencia estar contaminada con el t6xieo PLOMO, en eoneentraci6n que sobrepasa 19 veces el DECRETONo (Figura 11), PROFUNDIDAD CONCENTRACION DECRETO (m) DEPLOMO No (mwl) (rug/i) 4,7 1 0,05 Figura 11. CONTAMINACIONDELAGUA CON PLOMO EN LA PISCINA , , ~ 1~-_.-----,_ s o SO,8 +--~----+_- I..-rmr'_'M-n ti: SOBREPASA 19 ~ 0,6 +-_-+ '0.r; ".b OA f-- "'" +-V"""-"'r:~"'_"_IF~~A..." 1IIllln.(}R_WUlMIJA~, !! 80, I jOeGRSE)----I o 1 No ~O,~05~... ~_~ Profundidad 4,7 m IOPLOMO I_ DECRETO No I 39 Plaintiff's Exhibit 250 p. 107 of 133 CVX-RICO

108 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 CROMO VI.-La muestra de agua de Ja PISCINA 4, evidencia estar contaminada con e1 t6xico CROMO VI, en concentracion que sohrepasa aproximadamente 6 veces la nonna contenida en el TEXTO UNIPICADO DE LEGISLACION SECUNDARIA DEL MINISTERIO DEL AMBIENTE, el eua1 se encuentra en e1 DECRETa No, (Figura 12). PROFUNDIDAD CONCENTRACJON DECRETO (m) DECROMOVI No (mgll) (rug/i) 4,7 0,33 0,05 Figura 12.-CONTAMINACION DEL AGUA CON CROMO VI EN LA PISCINA 4 ;a; O,S5, , 0,3 +---~ tlvc3,,~~ ~------j. CROMOVI ~ 0,25 t t--:c s 7 0a ""R""E=P'-:-'AS=':A, j ~ APROX. 6 VECES o 0, i--- t----.lac-a:-tdiorm;qi i., u.a U, u.: ~-- t ~degre_'fu, i ~ NO o U 0, I-----t 'I-O-,Q-s-.-I----j O~--L--~ ~ -L_~ Profundidad 4,7 m I mcromovi DECRETO No, I CVX-RICO Plaintiff's Exhibit 250 p. 108 of 133

109 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI48 2.4PISCINA DE LODOS DEL ESTUDIO GEOLOGICO PISCINA DE LaDaS SH48-SES Aqui se torna dos muestras superficiales de O.O-O.2m y, O.2rn-OAm. DESCRIPCION LlTOL6GICA EN PERFORACI ON CODIGO SH48-SES. La 1i1010gia observada del suelo es 1a siguiente. Rango de profundidad de Descripcion del suejo perforacion (un) O.O-O.2m Suelo vegetal, con raices, can una arcilla cafegrisacea pastosa (bentonita) con manchas negras O.2-0.6m m O.S-l.Om con olor a hidrocarburo. Arcilla cafe rojiza, humeda, con tramos de arcilla caf6-grisacea pastosa (bentonita) can olor a quimico. Limo arcilioso, arenoso, cafe claro, hmnedo. Arcilla limosa, cafe amarillento, plastica, humedo. 41 CVX-RICO Plaintiff's Exhibit 250 p. 109 of 133

110 INFORME DK LA INSPECCION JUDICIAL DEL POZO SHUSIRJFINDI 48 \ J DEL LABORATORIO.-La Tabla 10 presenta los resultados de lab oratorio de las muestras de suelo tomadas en la piscina de lodos. No se evidencia contaminaci6n. Tabla lo.-resultados Y COMPARACION CON LA LEGISLACI6N AMBIENTAL NACIONAL VIGENTE. TABU... RESULTADOS DE L.AJl,ORATORIO Y CORKl!.:LACiON COJ.,"( NORMAS AM.B[ENTALI1:S CDORDENADAS GEOCllAFIC.AS~ 511.-a-SE5: LA'rrrUD, ~.14i 18..e:66IS56'" s: LONG-ITUD~ 16" af,il' lj.60&344!t1 W UI'LEdad CQJ1.ventr.ll...::I(in: PISCINA DE LOooS SUELO LECIS LACldN molk. Sa~.sES :SH48--SFS P.tI)f\IJ1.. \:U"ad: mt:tl'o$ o.o-o..:!li l\lo-o~ m;:cha DE inspttcion, l3imji004 1~ IllCRETO OI;!:CRETO ANALISIS METODO No.. I2l; No. J516 Mt::TALES,..,," SM3500S "",",' Cadmio USEPA 7000 <nl <'01. <I Cobrc USEPA ,6 16"., Ni ulj!:l USm"A 700Q '.' 3.3 <,. SO ZI" USEfA 7000 _3M.ll1.!i loo Plomo ljs:efa Ht,~ "'.. <,. 100 C Qm(loV'( SM JjOO C~ «1.1 < flldrocarburos 0)1; PETROLW TOTALHS (TPH!ii 'I'PH, "'0 ~IOOO ORO El"A:t:015 "'0 <So ORO EPA80lS <so <>" D'fEK :5cr.lc~no- N'AI~6(lB <0.005 <o,oo:'i O,LJo5 ToJul,!no EPA 8l{iOB <0.005 < Eli Ib,:m~ilO npa;i3::z.60b O,Ol,J «1,005 '1,1 X--'y!cnQo EPAS260B om. <0,00l.,1 HJn'ROCARBUROS AROMATICOS POucfcuCO-S (HAPs. ""'" <J <l BRNZI)(alPJRENO EPA ~270 «l.> <0,5 1 BEl/WI' FLUORANTRNO EPA :Q:2"j10 <0,5 <0.' BENZOl IQFLUORANTENO RPAS:270 «l.s <0,' BENZO(2,ho,1 Perilol!:fto- ErA 82]0 -':0,5 <0,' FLUOMNTmD ErA <0.5 <fl,s INDENO(l.l,J." PIR.NO EPAU70 «l.> <0,5 Labomtorio responsable del analisis: CENTRO DE SERVICIOS AMBlENTALES Y QUIMlCOS DR I.A PONTlFICIA UNIVHRSlDAD CAT6LICA DE ECUADOR. CESAQ PUCE, lnforme CESAQ"PUCE No , Recepcion de muestras: 15/09/04 Analisi" de muestras: 16-30/09104 CVX-RICO Plaintiff's Exhibit 250 p. 110 of 133

111 INFORME DE LA INSPECCION JUDICIAl. DEL POZO SHUSlIUFINDI EVALUACION TECNICA DE LAS AeTAS DE "APROBACION ACEPTACI6N" Y DE LOS RESULTADOS ANALITICOS DE AGUA Y SUELO DEL POZO SHSUSHUFINDI 48, A los 22 dias del mes de noviembre de mil novecientos noventa y seis la Subsecretaria de Protecci6n Ambiental del Ministerio de Energia y Minas en Ia persona del Ing. Hugo Jara Roman y por parte de TEXACO PETROLEUM COMPANY, en las.personas del Sr. Ricardo Reis Veiga en calidad de Vicepresidente y el Dr. Rodrigo PerezP, en calidad de representante legal, proceden a suscribir el acta con el objeto de: (textual) "aprobar y accptar los siguientes trabajos realizados de confonnidad con las Clausulas 4.1 del CONTRATO PARA LA EJECUCION DE TRABAJOS DE REPARACION MEDIOAMBIENTAL Y LIBERACION DE OBLIGACIONES, RESPONSABILIDADES Y DBMANDAS, celebrado el 4 de mayo de 1995". Se adjunta como anexo de las aetas una lista de ''piscinas'', dentrode la cual se inciuye el pozo SHUSHUFINDI 48 Y los correspondientes planes de reparacion ambiental y resultados anahticos de agua y suelo. En esta secci6n se evalua la validez tecnica de los trabajos de "Reparacion Ambiental" a los que hacen alusion las actas mencionadas. Para este prop6sito se torna como base los datos indicados en los anexos de los infonnes relativos al cierre de las piscinas. SIDJSIDJFINDI 48, PISCINA a4 ~'-' ~ ~ "\,,el IF. Identificaci6n: RA-SSF48.1 Tipo: Crudo Condici6n de la piscina: RA: piscina terminada, lista para certificaci6n Sitio de muestreo: Piscina Fecha de toma para agua: 27 dejunio de 1996 Fecha de amilisis de agua: 27 de j unio de CVX-RICO Plaintiff's Exhibit 250 p. 111 of 133

112 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI RESULTADOS DE LAB ORATORIO DESPUES DE LA REMEDIACION DEL RECURSO AGUA COMPARADOS CON LA LEGISLACION VICENTE A LA FECHA DE REMEDIACION. La tabla 11., presenta los resultados reportados por TEXACO de los anal isis del recurso agua. Tabla H.-RESULTADOS DE LABORATORIO REPORTADOS POR TEXACO PH ph Temperatura (campo) "C Material Flotante Ausencia Ausencill Ausencia Hidrocarburos y grnsas mjii <5 <5 S6li dos Total es Di~ uel los mg!l Clomros rug/i Sulfatos rug/i < S6lidos en SU11I!.ensi6n rug/i S61idos Sediruentables rug/i <O.L <0.1 Demanda Quimica de Oxigeno mg!l C[ldmio m.. ll < Zinc mg/i Cobre rug/i 0.Q2 l.0 Cromo m~ :" 0.05 Fenoles mg/i Veces sobre 1. nonna FluQruros mg(! 0.10 Mercurio mg/l NA NiqueJ mwi "'* II veces sobre la nonna Plamo mgfl Vanadio mg/l NA Oxigeno Disuelto mgll Conductividad.!-IS Fuent.. ProtoCQlizacioDe. Tex o Shu!hufintli 48, Fol"' nuevo mil tres cienlo. treint. y.el., * Art, 19.- Los <rlteri,," d Iid.d para las aguas de (O"SlImo Illlmana y domestioo y que P"'" "U pot.bilizad6n «quieten s610 aesinfetti6n, Acuerdo 2144, Registro Oficial NQ.104, dels de JUDio de Art. 25., 1.0< cri~rios de caudad admlilblu para 10 pre.. rvaelon de fior. y (auo. en.guas dulce!, frla. 0."Udas yen 'Il""" marina, y estuarinas, Acnerdo 2144, Registro OCidal No.2P4, /lei 5 <I~ JUDlo de 19S9. 44 I CVX-RICO Plaintiff's Exhibit 250 p. 112 of 133

113 INFORME DE LA INSPECCI6N JUDICIAL DEL POZO SHUSHUFINDI 48 DISCUSION DE RESULTADOS. Del amilisis comparativo (Tabla 11) entre los resultados de remediaci6n del agua de 1a piscina 1 del pozo Shushufindi 48 con el Decreto No. 2144, del Registro Oficial No 204, del 5 de Junio de 1989 vigente a la fecha en la que se realiz6 1a remediacion evidencio 10 siguiente: Los compuestos fcn61icos" sobrepasa en nueve veces ei limite maximo pennitido por el Decreto No del 5 dejunio de (Figura 14) El niquel sobrepasa en Once veces ellimite maximo penni sible permitidopor el Decreto No del 5 dejunio de 1989, Los excesos de las concentraciones de los contaminantes se grafican (Figuras 13 y 14) a continuacion para visualizar los excesos respt:cto al ACUERDO No del 5 de junio de Figura 13. CONTAMINACION DEL AGUA CON r- o.m C,OM PUESTOS FENOLICOS Q'" Ij-,Cl1a ~ 0,016.! cjoh 0..01:2 ~! 01),01 1 QOO. O,IlOlli " _.Do< 0-,002 Figura 14.-CONTAM INAC/ON DEL AGUA CON. " tkrt1~~c-:iq~u;:,:e::;;l:::-. ---, 0.10 {-----r---,-.,~h>-! -R'~k-~ I - Q 'n!e-E&--~""A--~~----' j O,j fll-a _ 0,09 f I---~ ~ I ~ 0.0. ~ _----! 0, ~--~~ I ~ ~OO+---+_--~ ~... 0,00 t \----i / g 0,0< ) C.,ro / O.U2 -I ') c"'u""oc=-, 0"'0'""2",,= ",OJ t---i-----( '----,----,r l Com paracion C;'Uql.lcd tlac!,.ierdo CVX-RICO Plaintiff's Exhibit 250 p. 113 of 133

114 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSIllJFINDI 48 ACTAS.-De la revisi6n de las aetas se evideneia que: No se reporta un parametro muy importante para camcterizar aguas que han sufrido contaminaci6n con hidrocarburos como es e1 caso de los Hidrocarburos de petroleo totales, (TPH), y metales pesados eomoes el caso de Cromo VI y Bario. m agua.de la piscina, aproximadamente 100 m\ fue tratada mediante el "SISTEMA PEeS". Se reportaen el RAP (Remediad Action Project) que se utilizo sulfuto de aluminio como floculante. Despues del tratar el agua con 6I "SISTEMA PEeS", segun los anruisis de lab oratorio presentados por TEXPET, que consta en foja nueve mil tres cientos treinta y cuatro de la protocolarizacion, se observa. un aumento en los s6udos totales disueltos asf como tambien en los solidos en suspension, manteniendose adernas inalterable despues del tratamiento el valor para 861idos sedimentables, por 10 que podem08 conc1uir que el proceso de coagulaci6n1flocu1acion y sedimentaci6n con sulfato de aluminio como tloculante no tuvo la eficiencia deseada. Se recuper6 un volumen aproximado de 1879 barriles de petr6leo que fueron enviados a Sacha Central para reciclar, segun la foja nueve mil tres cientos treinta y tres de la protocolarizacion, Se obtuvo una cantidad aproximada rie 100 m 3 de lodo, el mismo quc fue tratado mediante el "Sistema PEeS", que consiste en un lavado de suelos con surfactantes, pero debo mencionar que no se rep0l1an pruebas de control de calidad; para poder af'irmar que el lodo proveniente de la piscina fue efectivamente remediado. segtin la foja nueve mil tres cientos treinta y cuatro de Ia protocolarizaci6n. No se realiz6 ning(jn tipo de tratamiento a1 suelo tanto de las paredes como del fondo de la piscina, segun consta en la foja nueve mil tres cientos treinta y cuatro de la protocolarizacion. SHUSHUFINDI 48, PISCINA 2 Identificacion: RA-SSF48.2 Tipo: Crudo Condicion de la piscina: RA: piscina terminada, lista para certificaci6n Fecha de toma para suelo: 25 y 30 marzo de 1996,06 de abril de 1996 Fecba de amilisis para suelo: 26 y 31 de marzo de 1996, abril CVX-RICO Plaintiff's Exhibit 250 p. 114 of 133

115 -52~~~~ ~:~.-:- INFORME DE LA INSPECCI6N JUDICIAL DEL POZO SHUSHUFINDI 48 '1 djdw ~ ~~~~~~~~~~~~~~~~ De las aetas se ha recabado la siguiente informacion: ", " <.".:,:,,' _RA,SSF04&;2.sZ' :c;, :"RA~SSFA8;2.s4; -'::,:', 'IDENTIFICActON", ", TIPO,'RA'SSF4S::Wit COMPUESTA PUNTUAL :RA~SN8:Z;s3,,: PUNTUAL COMPUESTA sino DF. MUESTREO riso I'ARIlD Pisa PISO PROFUNDIDAD (m) 0,60!.SO L50 o.go FECHA DE TOMA 25/marzoJ O/marzO/ /marzO/ l.brilll996 FECHA DE ANAUSrs 261marzO/I996 31Im.rzoIl996 3 limarzo! I Q7/aln-ill1996 Htdrocarb ur. I mglkg G ~"{TP!f') TeLJ> I fflll/l <5 <5 <5 <5 ~(y. DISCUSION. La evaluaci6n de esta infonnaci6n evidencia que: Los hidroearburos de petr6ieo presentes (TPH) antes del tratamiento fueron de 7114 mg!kg con un volumen aproximado de 50 m 3, los mismos que fueron tratados con el "SISTEMA PEeS", lavado de suelos con surfattantes, logrando bajar la concentracion de TPHs a 1500 mg/kg, No se realizo ningim tratamiento, ni tampoco prueba de control de cuntaminaci6n para el suelo de la plscina No.2. SHUSHUFINDI 48, PISCINA 3 Identificacion: RA-SSF48.3 Tipo: Desechos asfaiticos Condicion de Ja piscina: RA: piscina terminada,!ism para certificaci6n Sitio de muestreo: Fast tanks Fecha de toma de muestras para agua: 27 de julio de 1997 Fecha de amilisis de muestras para agua: 27/28 de juliq de i CVX-RICO Plaintiff's Exhibit 250 p. 115 of 133

116 INFORME DE LA INSPECCI6N JUDICIAL DEL POZO SHUSHUFINDI 48 RESULTADOS DESPUES DE LA REMEDIACJ6N SHUSHUINFI 48, PISCINA 3. COMP ARADOS CON LA LEGISLACION VIGENTE A LAFECHA DE LA REMEDIACION, PARA EL RECURSO AGUA.-La tabla 12 presenta [os re.sultados de Laboratorio y reportados por TEXACO, que sirvieron debase para la aprobaci6n de [as aetas. Tabla 12.-RESULTADOS DE LABORATORIO REPORTADOS POR TEXACO- 1'A.RA!"\1ETIWS ANALIZADOS RA-SSF4S.3-W8 ACllerdo No_ 2144 UNIDAD TRATADA R.O. No. 204 FAST TANK 5 de junlo de 1989' Exoeso con ""'pedo al AClierdo No PH ph ~Iura (c>jlilpol "C M.leri.1 FJotante Ausencia Ausenci. Hidrocarbuw"-y grasas mg,t <5 - S61idos Totales DisueJtos mg C!ONroS m Sulfato. mg;1 < S6lido.'e.n Suspension mg!! <0.1 SOlido. Sedimenta bl m~1 <0.1 Dem.nda Quimic. de Oxilleno mg/i C.dmio IllgfJ 0.01 om Zinc m!!ll Cobre mg/l Cromo mgtl "0,05. FenoJes rug/i 0, ' 4 'veces.obre Ia nonna FluolW(>.!;."'WI Mercurio mg; NA Niquel " ruwl **,,- 11 vee"-' <obre I. norma Plomo mg/l ~o mgd NA Oxigeno D i.uc!ta ml(l 1.9Q 6 Conducti vidad. l'fi FlIeute, Proloeoll"",dones fua<o Shu,hul1ndi 48, FoJ "uove mil Ir.. donm. trel uta y sel. * Art. 1_9~ Los <riteri". de caudad p.ra las.guo. d. co umo humano y dom~'llco y que para." potabj]j~.ci6n r"quierem s610 desiuferd6n, Acuerd<) 2144, Reg;.I.,. Oflcial No.204, dcl5 de junln de ** Art Ll, crihrlo. de calidad admhibl par. I. pr.,ervacion de nora y fanna en Ilgu., duk.!, frla, 0 CliUdai Y en agu38 marinas y tuarlilils, Acu.. do 2144, Regislro Olki.! No.204, de! 5 de i"nio dt CVX-RICO Plaintiff's Exhibit 250 p. 116 of 133

117 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 DISCUSION DE RESULTADOS. Del an:ilisis comparativo entre los resultados de remediaci6n del agua de la piscina 3 del pozo Shushufindi 48 con el Decreto No. 2144, del Registro Oficial No 204, del 5 de Junio de 1989 vigente para la fecha en la que se realizo la remediaci6n (Tabla 12) se evidencia que: La concentraci6n de fenoles sobrepasa en cuatro veces el limite maximo permitido por el Decreta No del 5 dejunio de (Figura 15) La concentraci6n de niquel sobrepasa en once veces el limite maximo permisible permitido por el Decreto No del 5 dejunio de 1989, (Figura 16), Figura 15. CONTAMINACION DEL. AGUA CON COMPUESTOS FENOLICOS.0" FENOLES o,m E'... C> VECESLA g 0,0013- NUKMA <: ,00& I! 'E :! = 0 ACUERDO 2144 u 0,002 Comparac16n I o Fenals.. o ACUERDO 2144 Figura 16,-CONTAMINACION DELAGUACON NIQUEL 0,13 0, NfQUEL 0,11 SOBREPASA 11 VECESLA 0,1 NVKMA ~om.s 0,08.., '" U 0,07 I:! 0,06 'E '" <.> 0,05 <: 0 (.) 0,04 0,03 0,02 0,01 0 Comparaci6n I I Acuo rdo 2144 I I!DNiquel CJ Acuerdo CVX-RICO Plaintiff's Exhibit 250 p. 117 of 133

118 INFORME DE LA INSPECCION JUDICIAL DEL POW SHUSHUFINDI 48 ACT AS.-De la revision de las aetas se evidencia que: Se recuper6 un volumen aproxirnado de m 3 de deseehos asf!ilticos que fueron enviados a la piscina 5de la Estaci6n 1 Sacha para su confinamiento, segun la foja nueve mil tres cient08 sesenta y dos. EJ Iodo de Ia piscina fue tratado con el "SISTEMA ECUAPET", que consiste en el encopsulamiento del contarninante in situ, disponiendolo en el fondo de.la piscina.y se reporto un valor de TPHs de 6602 mglkg antes del tratamiento, logrando reducirlo a 4017 rng/kg despues de aplicar el sistema ya mencionado, segun consta en la foja nueve mil tres cientos sesenta y dos del. documento de protocolarizacion. Como se ve no se podia encapsular el recurso aim contaminado con valores tan elevados de TPHs. EI porcentaje de eficiencia para el sistema utilizado en Ia remediaci6n dellodo de la piscina es bajo ya que fie logro reducir en apenas el 39% aproximad.arnente la conctmtraci6n -de TPHs. No se realizo ningim proceso de remediacion para los suelos contaminados de la piscina No. 3, segun consta en la foja nueve mil tres cientos sesenta y dos. SffiJSHUFINDI 48, PISCINA 4 Identifleaci6n: RA-SSF48.4 Tipo: Desechos asfaiticos Condicion de la piscina: RA: piscinn tcrminada, lista para ct::rlificacion Sitio de muestreo: Fast tanks Fecha detoma de muestras para agua: 17 de julio de 1997 Feeha deamilisis de muestras para agua: 17/18 dejulio de CVX-RICO Plaintiff's Exhibit 250 p. 118 of 133

119 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 ~ 6- ~ ~ u,y"~ ~?-Ac ~~n ~ ~? ~~~~~~~~~~~~~~ ~~, RESULTADOS DESPUES DE LA REMEDIACION SlllJSHUFINDI 48, PISCINA 4, COMPARADOS CON LA LEGISLACION VIGENTE A LA FECHA DE REMEDIACION, PARA EL RECURSO AGUA. La tabla siguiente presenta los resultados de los amuisis de laboratorio reportados par TEXACO (Tabla 13). Tabla 13.-RESULTADOS DE LAB ORATORIO REPORTADOS POR TEXACO Acuerdo No. PARAMETROSANALUADOS RA-SSF4S.4-W UNIDAD TRATADA R.O. NG.204 FAST TANK 5 de junio de 1989" PH.pH Exeeso respecto Acuerdo 2144 Temperatura (campo) C c-.-,,!erial. F1otant~ - Ausenoia Auscncia Hidrocarburos y grasas rog/l <5 - SOlido. Totales Disueltos mg/] Cloruro. mg/i Sulfatos mg/i SOlidos en Suspension mgil 6.00 Solido. Sedimentables mgij <0.1 - Demanda Qulmica de Oxigeno mi!)l Cadmio ~I 0.01 O.G! Zinc mg/i < Cobre mg/i Cromo rng/i '-'<' 0.05 Fencles rog/i 0' veees sob", la nonua Fluoruros mg/i Mercurio mg/i NA Niquel mgil < *. 33 veces sabre la norma Plomo mg/i Vanadio mgfl NA - Oxigeno Di.uclto mlil Conductividad. J!.S 2: can al No. Fu.nte: Pr<>tocoJi""d.".. Taaco ShuslulOnai 43, Foju nuevo mil tr... cient trd.fa y.. i> Art Los «lterios d 'idad para I as".s de consumo humano y domestico y que pa.. '11 pot.billza,lon requitren SOlo dtsinf""'i6n, Miler"" 2144, Resiste. Ofl,i.1 N 204, deis de jnnl" de ** Art Los crilerlos de caudad admjsibles para la preservadou del10ra y fauna en agu dule.., frla. u calidas y en aguas m.ri, y.. tuarin., Ac.erdo 2144, Regis!ro Oficlal No.204. deis de junio de I CVX-RICO Plaintiff's Exhibit 250 p. 119 of 133

120 INFORME DE LA INSPRCCION JUDICIAL DEL POZO SHUSlIUFINDI 48 DISCUSION DE RESUL TADOS REPORT ADOS POR TEXACO. Del anilisis comparativo entre los resultados de remediaci6n del agua de la piscina 4 del pozo ShLLShufindi 48 con el Decreto No. 2144, del Registro OficiaI No 204, del 5 de Junio de 1989 vigente para la fecha en la que se realizo la remediaci6n se puede evidenciar que: Los compuestos fen6licos sohrepasa en cuarenta y cuatro veces ellfmite maximo permitido porel Decreto No del 5 dejunio de (Figura 17) EJ niquel, sohrepasa en treinta y tres veces el limite maximo peimisible pennitido por el Decreto No, 2144 del 5 dejunio de (Figura 18), '" a.s Figura 17.-CONTAMrNACrON DB.. AGUA CON COMPUESTOS FEN6Llcos 0,1 FENOLES SOBREPASA ,06 0,(1'7 " 0,00 '0 1) 0.00 ~.:: 0,04 ~ <:> U 0,02 0, :::::: '"" Comparaclon AClJERDO Figura 18, CONTAMINACION DELAGUA CON NIQUB. I~FenOles ACUEROO 2144 ~.E II 0,24 0,23 _:ASA O~ O~ NORMA: 0,10 0,13 a,17 0,15.a 0,15.;:; 0,14 a,n.. O,f> '" C ().11., 0,1 U 0.00 C O.o? tj o,oe 0.05 OM OM 0,02 0,01 0 _IDNfQUI'II Comparaci6n o Acuerdo CVX-RICO Plaintiff's Exhibit 250 p. 120 of 133

121 INFORME DE LA INSPECCI6N JUDICIAL DEL POZQ SHUSHUFINDI 48 ACT AS.-De la revision de las aetas se evidencia que:, j, L ~, j El 10do de la piscina fue tratado con el "SISTEMA ECUAPET", Y se reporto un valor de TPHs de mg/kg antes del tratamiento, logrando reducirlo a 3605 mg/kg despues de ap1icar el sistema ya mencionado, seg6n consta en la foja nueve mil tres cientos setenta y tres del documento deprotocolarizaci6n y que consiste en el encapsulamiento del contaminante in situ, disponi6ndolo en el fondo de la piscina, No se realizo ning(m proceso de remediaci6n paralos suelos contaminados de la piscina No, 4, segun consta en la foja nueve mil tres cientos sesenta y dos., i ", ) ) ) ) ~ ; ) i " i " 53 CVX-RICO Plaintiff's Exhibit 250 p. 121 of 133

122 INFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI CONCLUSIONES. 3.1 DEL ESTUDIO GEOLOGICO. 1. PISICINA l.-contaminacion. Se observan pocos niveles de contaminaci6n en esta Piacina. basicamente en los limos arciiiosos con tramos de arcma gris en forma de bandas, con olor a hidrocarburo. 2. PISCINA 3. CONTAMINACION.-En esta Piscina la mayoria de los estratos presentan contaminaci6n. segun los registros de perforaci6n. Segt'in TEXACO en esta Piscina se realizaron trabajos de remediaci6n con surfactantes, pero segun los datos de perforaci6n y el anajisis litoestratigrftfico, esta remediaci6n no fue efectiva. La contaminaci6n se observa principalmente en limos arenosos-atcillosos con tramos grises, que es donde los niveles de contaminaci6n son altos. 3. PISCINA 4.-CONTAMINACION-PUNTO SE4.-La contaminaci6n se observa en algunos estratos a diferente profundidad. En el interior del sondeo los niveles 0 tramos contaminados de los estratos se presentan en forma de vetiilas, horizontes grises, fragmentos, a n6dulos. A la profundidad 4,45m los limos arcillo-arenosos esum completamente saturados. Al final de la perforaci6n en los ultimos 0.10cm se encuentranvetillas de OXidos de hierro de 2mm de esp.esor sobre lul esttato de limos atenosos cafe claro con unos puntos blancos de origen qu[mico. 4. PISCINA DE LOnOS SH48-SE5 Los primeros veinte centimetros presentan olor a petraleo. Entre 20 y 60 centimetros se tiene un estrato de Aroilla cafe rojiza, humeda, con tramos de arciila cafe.grisacea pastosa (bentonita) con olor aquimico. 3.2 DEL ANALISIS DE LAS FOTOGRAFiAS AEREAS 5. FOTO AEREA DE Se evidencia que TEXACO cava tres fosas en tierra (Nos. 1 y 3 segun numeracion TEXACO) y 5, no registrada por TEXACO). Estas fosas no esum impermeabilizadas 10 que favorece la migracion de- los contaminantes hacia estratos inferiores, contaminando suelo y agua. TEXACO vertfa Iodos contaminados can crudo, desechos de crudos depruebas de producci6n y descchos de liabajos de work over. 6. FOTO AEREA DE Se evidencia que 1a fosa 1 fue parcialmellte cubierta por vegetaci6n, la fosa 3fue totalmente cubierta con tierra y vegetaci6n. TEXACO continuo vertiendo desechos taxicos en las fosas 1 y CVX-RICO Plaintiff's Exhibit 250 p. 122 of 133

123 INFORME DE LA INSPECCr6N JUDICIAL DEL POZO SHUSHUFINDI FOTO AltREA DE TEXACO cava en 1990 dos tosas adicionales (Nos 2 y 5) Y las utiliz6 sin impenneabilizitr para descargar lodos contaminados con crudo, desechos de cmdos de pruebas de producci6n y desechos de trabajos de work over. En total cava cinco fosas en tierra para descargar todos los desechos roxicos. AREA TOTAL DE LAS CINCO PISCINAS = 5259,27 m 2 PROFUNDIDAD PROMEDIA: 4.95 METROS (Promedio de las profundidades de contaminacian, segu.n los perfiles estratigraf1cos: (5.10 m; 3.94 m; 5.80 m). VOLUMEN DE SUELO CONTAMINADO: m 3 DENSIDAD DEL LODO: 1.80 toneladasjm 3 MASA TOTAL QUE SE DEBE REMEDIAR: Toneladas de suelo contaminado DEL METODO DE REMEDIACION Y AeTAS 8. La tecnica PEeS y BCUAPET UTILZADAS por CHEVRONTEXACO fueron inadecuados 0 insuficientes ya que sus propios resultados de laboratorio comprueban que Iuego del tratamiento pennanecen Hidrocarburos de Petroleo Totales (TPHs), fenoies y metales pesados en el efluente y a pesar de esto, el etluente es descargado al ambiente, produciendo el impacto ambiental consecuente. Se precede a suscribir las actas a pesal' de que ei recurso suelo evidencia de sus propios resultados que esm contaminado. 3.4 DEL LABORATORIO 9. TPHs EN MUESTRA DE SUELO DE PISCINA I-N3-PROFUNDIDAD ENTRE 1.0 Y 1.2 METROS. La muestra de suelo de la PISCINA 1, evidencia estar contaminada con los roxicos TPHs, en concentraci6n que sobrepasan aproximadamente 2 veces la nonna el Decreto Esto comprueba la migracian de los contaminantes bacia estratos inferiores. 10. TPHs EN MUESTRA DESUELO DE PISCINA 2-SW3-PROFUNDIDAD ENTRE 0.85 Y 1.31 METROS. La muestra de suelo de la PISCrnA 2, evidencia esw contaminada con Hidrocarburos De Petraleo Totales (TPHs), en concentracian. que sobrepasa aproximadamente 1,5 veces ei Decreto Esto comprueba 1a migracion de los t6xicos hacia estratos inferiores. n. TPHs EN l\westra DE SUELO DE PISCINA 2-SW2-PROFUNDIDAD ENTRE 1.20 Y METROS.- La muestra de suelo de 1a PISCINA 2, evidencia estar contaminada con los taxicos TPHs, en concentracian que sobrepasan 1 vez el Decreto ~ CVX-RICO Plaintiff's Exhibit 250 p. 123 of 133

124 ... >.... :S2:;;l~ ~~ I NFORME DE LA INSPECCION JUDICIAL DEL POZO SHUSHUFINDI 48 ~.~ ~ ~~~~~~~~~~~~Ut! 12. TPHs EN MUESTRA DE SUELO DE PISCINA 3~SE3-PROFUNDIDAD ENTRE 1.55 Y METROS La muestra de sudo de La PISCINA 3, evidencia estar contaminada con 105 t6xieos TPHs (HIDROCARBUROS DE PETROLEO TOTALES), en concentraci6n que sobrepasa aproximadamente 7 veces e1 Decreto Es muy clara la migraci6n de los taxicas hacia estratos inferiores. 13. TPHs EN MUESTRA DE SUELO DE PISCINA 3-SE3~PROFUNDIDAD ENTRE 2.28 Y 2.55 METROS.- La muestra de suelo de la PISCINA 3, evidencia estar contaminada con los toxicos TPHs, en concentraci6n que sobrepasan aproximadamente 4 veces la nonna. El contaminante migr6 y esta presente en el rango de profanidad de 2.28 a 2.55 metros, superando la tolerancia ambiental en aproximadamente una vez. La migraci6n del toxica queda demastrada ya que en el rango de 2.75 a 3.05 se encontro concentraciones que superan la norma sabre las cuatro veces en mas. 14. TPHs EN MUESTRA DE SUELO DE PISCINA 3-SE4-PROFUNDIDAD ENTRE 2.20 a 2.40 METROS.- La muestra de suelo de la PISCINA 3, evidencia estar contaminada con los toxicos TPHs, en concentraci6n que sobrepasan aproximadamente 1 vez el DECRETO No.12l5. Estos resultados ratifican la demostraci6n de la migraeion del toxico hacia estratos inferiores. 15. BARIO.-La muestra de agua de la PISCINA 3, evidencia estar contaminada con el toxico BARIO a una profundidad de 4.7 metros, en concentraci6n que sohrepasa aproximadamente 1 vez el DECRETO No Esto demuestra que se ha producido una migraci6n del bario desde el suelo superficial basta el agua. 16. COBRE.-La muestra de agua de Ia PISCINA 3, evidencia estar contaminada con el toxieo COBRE a una profundidad de 4,7 metros, en concentraci6n que sobrepasa aproximadamente 3 veces el DECRETO No y apioximadamente 2 veces la e.~recjficaci6n de 1a EPA 17. NiQUEL.-La muestra de agua de la PISCINA 3, evidencia estar contaminada con el t6xico NIQUEL a una profanidad de 4.7 metros, en concentraci6n que sobrepasa 75 veces el DECRETO No PLOMO.-La muestra de agua de la PISCINA 3, evidencia estar contaminada con el t6xico PLOMO a una profanidad de 4.7 metros, en concentraci6n que sobrepnsa 19 veces el DECRETONo CROMO VI.-La muestra de agua de la PISCINA 3, evidencia estar eontaminada con d taxieo CROMO VI a una profanidad de 4.7 metros, en concentracion que soi)!'()pusii aproximadamcnte 6 voces cl DECRETO No CVX-RICO Plaintiff's Exhibit 250 p. 124 of 133