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Home My WebLink AboutMITIGATION GeoResearch · (209)(800) 264-0444523.4786 %"~. %",. '":? ..' Fax: (209) 264-9800 ' '~' ':':" ' Januar~l 993 Mr. Terry Gray Environmental Health Analyst Kern County Environmental Health Services Department HMMP - Enforcement 2700 "M''' Street, Suite 300 Bakersfield, CA 93301 RE: Leach Field and Seepage Pit Closure Report, Unocal Service Station -No. 3655, 2600 Pierce Road, Bakersfield, California. GeoResearch Project No. 92080-02 Dear Mr. Gray: On behalf Of Unocal Corporate Environmental Remediation and Technology, we are submitting to you one copy of the above- referenced report. If you have any questions, please call me at (209) 264-0444. Sincerely, Assoc±ate Geolog£~t enclosures U23655. L FF, 010593F4 GeoResearch is a division of GEOSERVICES, a California corporation KERN CO U NTY OFFICE MEMORANDUM TO : ACCOUNTING DATE: ~//23/5~__ /.. FROM : /. ~_ ~ ~.'/ sUBjECT: CLOSURE OF WORK ORDERS WORK ORDER NUMBER ~oc ~ ~ WORK ORDER NAME C/~=,¢ ~. / .$/-)~.T/~,~ r, AST DATE WORK ORDER WAS UTILIZED REASON FOR CLOSURE OF WORK ORDER PROGRAM MANAGER eIE URCE MANAGEMEN'I' AGENCY Environmental Health ~ervice~ Department ~DA~ L. ABBO~ s~ McCOY, R~S, DmECTOR DI~CTOR Air Po~ Control ~t DAVID PRICE · ~ a. RODDY, ~O ~IST~ D~CTOR ' ~ning & D~t ~ ~ent ~ J~, ~CP, DIRECTOR ENVIRONMENTAL HEALTH SERVICES DEPARTMENT September 18, 1992 ~ Unocal Corporation I Unocal Refining and Marketing Division Mr. Robert A. Boust !. ~ 2000 Crow Canyon Place, Suite 400 San Ramon, CA 94583 SUBJECT: Closure of Class V Shallow Injection Well, located at Unocal Station #3655, 2600 Pierce Road, Bakersfield, CA Dear Mr. Boust: The August 14, 1992, GeoResearch report of the soil sample results of the soft samples retrieved July 1, 1992, at the location noted above have been received by this office. In accordance with the closure guidelines for Class V Shallow Injection Wells the levels detected presented a threat to the environment. The contaminated soil was excavated and transported to an appropriate disposal site. It is this Departments position that the environmental concerns have been abated, and no further action is required. If you have any questions, please call me at (805)861-3636, extension 582. Sincerely, Terry L. Gray Hazardous Materials Inspector Hazardous Materials Management Program TLG:ch cc: U.S. Environmental Protection Agency (EPA) ATIN: Martin Zelezrfik Regional Water Quality Control Board - Fresno ATFN: Dale Essary GeoResearch ATFN: Steve curra gray~uno3655.1et .2700 "M" STREET, SUITE 300 BAKERSFIELD, CALIFORNIA 93301 (805) 861-363' DI AFT September 9, 1992 Unocal Corporation Unocal Refining and Marketing Division Mr. Robert A. Boust. 2000 Crow Canyon Place, Suite 400 San Ramon, CA 94583 Subject: Closure of Class V Shallow Injection Well, located at Unocal station ~ 3655, 2600 Pierce Road, Bakersfield CA. Dear Mr. Boust: The August 14, 1992 GeoResearch report of thevresults s~t~ retrieved July 1, 1992 at the location noted above have been received by this office. ~~' d~r~-i:n-e-d t~t~the levels -~ed presented a threat to the environment, uader~he_gl~i.Q~.~.e~-e-t~o's-ure--od s~_~~s~. The contaminated soil was excavated and transported to an appropriate disposal site. It is this Departments position that the environmental concerns have been abated and no further action is required. If you have any questions, please call me at (805) 861-3636, extension 582. Sincerel)-, Terry L. Gray Hazardous Haterials Inspector Hazardous Materials Management Program cc: U.S. Environmental Protection Agency ATTN: Martin Zeleznik Regional Water Quality Control Board - Fresno ATTN: Dale Essar}~ GeoResearch ATTN: Steve Curra GeOResearch 1713 Tulare, Suite 113 Fresno, California 93721 (209) 264~0444 (800) 523-4786 ~' Fax: (209) 264-9800 August 14, 1992 Mr. Terry Gray Hazardous Materials Inspector County of Kern, Environmental Health Services Department 2700. "M" Street, Suite 300 Bakersfield, CA 93301 RE: Analytical Results, Septic System Soil Sampling, Unocal Service Station No. 3655, 2600 Pierce Road, Bakersfield, California. GeoResearch Project No. 92080-02. Dear Mr. Gray: The purpose of this letter report is to present the analytical results of soils sampled during the leach field and septic tank removal and seepage pit destruction at the above-referenced site (Figure 1) and to present, for your approval, recommendations for closure of these facilities. On July 1-2, 1992,. the seepage pit was destrOyed, the septic tank and leach line were removed, visibly stained soil was excavated from the leach field, and confirmation soil samples were obtained from the excavation and analyzed for selected organics and metals by GEOTEST, a California DOHS certified analytical laboratory. Prior to excavation of the leach field, the septic tank was pumped out by a licensed sewer contractor. The septic tank was removed by the backhoe, destroyed, and will be disposed as demolition debris. The' seepage pit was excavated to remove the top of the .pit to a depth of approximately 5 feet bgs. The pit was then backfilled with a 1-sack sand/cement slurry. The source of discharge to the leach field consisted of approximately 55 feet of four-inch diameter clay pipe laying approximately three feet bgs. Visibly clean soils overlying the leach field were stockpil-ed separately from soil that was visibly stained from the within the leach field. The leach field excavation and samPle locations are shown on the attached site map. Per your instructions, selected samples from the excavation were analyzed for volatile organics (EPA Method 8240) , total recoverable petroleum hydrocarbons (TRPH - EPA Method 418.1) and the following metals: arsenic, barium, chromium, copper, lead, nickel, thallium U3655.LFE2 081292F GeoResearch is a division of GEOSERVICISS, a California corporation Mr. Terry Gray Analytical Results from Soil Sampling Unocal Service Station No. 3655 August 14, 1992 Page 2 and zinc. The results of these analyses are presented in the attached tables. Five of the 22. samples analyzed were found to contain detected concentrations of TRPH ranging from 16 mg/kg to 470 mg/kg. At each location where TRPH .concentrations were detected, additional excavation was conducted until confirmation samples revealed that TRPH concentrations were not detected. Two of the samples (LF2-7 and LF1W,6) from the bottom of the excavation were also analyzed for volatile organics by EPA Method 8240. Volatile organics were not detected in these samples. Four samples, obtained from the bottom .of the excavation at approximately 20-foot intervals at depths ranging from · approximately 2 to 6 feet below the bottom of the leach line, were analyzed for metals. In each of these samples, the concentrations of the metals were slightly lower than the concentrations found in the background samples. The metals concentrations present in the samples obtained from the leach field excavation appear to be consistent with concentrations naturally occurring in soil as demonstrated by the background samples, and not a result of a discharge of these materials from the site septic system. Therefore, we request, on Unocal's behalf, closure of these former Class V injection well facilities. With your approval, we will backfill the excavations and dispose of the septic tank and leach field debris and soil at an appropriate landfill. The visibly-stained soil from within the leach field will be profiled for disposal at an appropriate Class II landfill and any demolition debris will be disposed at a local Class III landfill. If you have any questions please call either of the undersigned at (209) 264-0444. Sincerely, Project Geologist Associate Geologist enclosures: Tables 1 - 3 Figure 1 cc: Mr. Robert Boust, Unocal Corporation U3655.LFE2 081292F TABLE 1 RESULTS OF TRpH ANALYSES OF SOIL SAMPLES COLLECTED FROM UNOCAL SERVICE STATION NO. 3655, ' 2600 PIERCE 'ROAD, BAKERSFIELD, CALIFORNIA JULY 1-2, 1992 Method: EPA 418.1 Sample Depth TRPH Number FT (BGS) (mg/kg) LF1-5 5 ND LF1W-5 5 25 LF1WA-6 6 ND LF1E-5 5 17 LF1EA-6' 6 I~ ND LF2-6.0 6 470 LF2-7 7 ND LF2E-6 6 ND LF2W-6 6 ND LF3-6 6 ND LF3E-6 6 ND LF3W-6 6 ~1 ND LF4-6 6 ND LF4W-6 6 ND LF4E-6 6 ND LF5-7 7 ND LF5W-5 5 ND LF5E-5 5 40 LF7-3 3 16 LF8-6 6 ND LF9-5 5 ND LF8-6 6 ND LF9-5 5 ND LDL I 10 For NOTES see last page of Tables ' U3655.LFE20S1292F TABLE 2 RESULTS OF METALS ANALYSES OF SOIL SAMPLES EPA METHOD 6010 FROM UNOCAL SERVICE STATION NO. 3655 2600 PIERCE-ROAD, BAKERSFIELD, CALIFORNIA, JULY 1-2, 1992 COMPOUND SAMPLE ID-DEPTH DETECTION LIMIT BG-5 BG-10 (mq/kq) Arsenic 3.6 ND 3.0 Barium 58 44 0.02 Chromium 5.9 3.9 0.12 Copper 35 3.8 0.29 Lead 15 ND 1.0 Nickel 2.9 1.8 0.20 Thallium 18 15 2.5 Zinc 65 22 0.11 COMPOUND SAMPLE ID-DEPTH DETECTION LIMIT LF1-5 LF2-7 LF3-6 LF4-6 (mg/kg) Arsenic ND ND ND ND 3.0 Barium 42 35' 46 41 0.02 Chromium 4.1 3.0 3.4 3.6 0.12 Copper 4.0 3.4 13 4.0 0.29 Lead ND ND 7.8 1.2 1.0 Nickel 1.8 14 2.1 1.7 0.20 Thallium 16 1.6 12 13 2.5 ~Zinc 29 28 21 29 0.11 For NOTES see last page of Tables · U3655.LFE2 081292F TABLE 3 RESULTS OF VOLATILE ORGANICS ANALYSES OF SOIL SAMPLES EPA METHOD 8240 UNOCAL SERVICE STATION NO. 3655 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA JULY 1-2, 1992 COMPOUNDS SAMPLE ID DETECTION LF1WA-6 LF2-7 LIMIT (~g/kg) Chloromethane ND ND 5.0 Bromomethane ND ND 5.0 Vinyl Chioride ND ND 5.0 Chloroethane ND ND 5.0 Trichlorofluoromethane ND ND 5.0 1,1-Dichloroethene ND ND 5.0 Methylene Chloride ND ND 10 1,1-Dichloroethane ND ND 5.0 trans-l,2-Dichloroethene ND ND 5.0 Chloroform ND ND 5.0 1,2-Dichloroethane ND ND 5.0 1,1,1-Trichloroethane ND ND 5.0 Carbon Tetrachloride ND ND 5.0 Bromodichloromethane ND ND 5.0 1,2-Dichloropropane ND ND 5.0 cis-l,3-Dichloropropene ND ND 5.0 Trichlorethene ND ND 5.0 Dibromochl0romethane ND ND 5.0 1,1,2-Trichloroethane ND ND 5.0 Benzene ND ND 5.0 trans-1, 3 dichloropropene ND ND 5.0 Bromoform ND ND 5.0 Tetrachloroethane ND ND 5.0 'continued on next page) For NOTES see last page of Tables U3655.LFE2 081292F TABLE 3 (continued) RESULTS OF VOLATILE ORGANICS ANALYSES OF SOIL SAMPLES EPA METHOD 8240 UNOCAL SERVICE STATION NO. 3655 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA JULY 1-2, 1992 COMPOUNDS SAMPLE ID DETECTION LFlWA-6 LF2-7 LIMIT (~g/kg) 1,1,2,2-Tetrachl°roethane ND ND 5.0 Toluene ND ND 5.0 Chlorobenzene ND ND 5.0 Ethylbenzene ND ND 5.0 m,p-Xylenes ND ND 5.0 o-xylenes ND ND 5.0 1,3-Dichlorobenzene ND ND 5.0 1,4-Dichlorobenzene ND ND 5.0 1,2-Dichlorobenzene ND ND ~.0 NOTES: EPA = U.S. Environmental Protection Agency TRPH = total recoverable petroleum hydrocarbons FT = feet BGS = below ground surface mg/kg= milligrams per kilogram BG = background sample ~g/kg= micrograms per kilogram' LDL '= laboratory detection limit ND .= not detected (below laboratory detection limit) U3655.LFE2 081292F Stockpile from seepage tRit excavation X r v~u( ~--X. [~1-10[ ~ ..... St~kpile with visibly clean ~ % ~- -= ~X/ / SO11 from above leach field etlon ~ % sPs %~ - ~ - n X LF2-6 ~ ' arifier ' ~ ~ .~_~ / X~ %. ----~'' ~ach field excavation ~ / / N --'~/ X~NN I ~Fo~er leach line · Foyer clarifier ' / ~ drain line ' / LF4W-6 ~ ~[I ' Stockpile wi~ stained soil from leach field I ex.vat!on Backgro~d sample X location 1 I 1 ,_ GeoResearch RIVERSIDE DRIVE S~PLE ~CATIONS - LEA~ FIELD ~OCAL SERVICE STATION 3655 2600 PIERCE RO~ BA~RSFIELD, CALIFO~IA pROJECT ~BER: 92080-02 ~ ~ 92080-02 1ORA~N DY: R'. ~THONY- _Former septic tank Stockpile with stained soil from leach field excavation LFSW-5 ~-~X~ \ ' ~ dispenser ~ X ~[ ~V ' islands ~ ~ % clarifier Fomer clari~ drain line 'X '5 LEGEND i X LF1-5 SAMPLE LOCATION RIVERS AND 1U3/~ BER N O,q/.q 0 lO 20 40 sc~~ I.~: F'EE7 GeoResearch 1713 Tul~re. ~,tute '..i3 !800~ 523-4786 DATE: ?0 FAX ~: -- . . FROM FAX ~ (209) 264-980C :,;umber of pages (including cover page) . If there are any pages not received or any ~estions regarding transaction) pleaCe call (209) 264-0444. Geor:,'e~ c.' ,.-':. ,: n c,~ CE'.9':5:; P,V!(':FS. a California r::]rporat On June 30, 1992 Mr. TerrY L. Gray Hazardous Materials Inspector county of Kern Environmental Health Services Department 2700 "M" Street, Suite 300 Bakersfield, CA 93301 RE: Unocal Service Station No. 3655, 2600 Pierce Road, Bakersfield, California. GeoResearch .Project No. 92080- 02. Dear Mr· Gray: The purpose of this letter is to confirm the additional sampling and analysis requirements that we discussed yesterday for the septic system abandonment at the above-referenced site. It is our understanding that, in addition to the sampling and analysis scheme detailed in our letter dated June 18, 1992, Kern County is requiring additional samples be obtained at depths of 2 and 6 feet below the leach line at 20 foot intc ~vals. These samples are to be analyzed for total conceutration o~ the following metals: arsenic, barium, chromium, cope lead, nickel and zinc. It is our understanding that the~: .netals were chosen because their total concentrations in soil or sediment samples from the septic tank or seepage pit were ten times greater than the Maximum Contamination Levels. established for drinking water, Given that the metal~ concentrations in the liquid sample from the septic tank were below MCL's for these metals, this sampling requirement seems overly conservative · However, we understand that you have encountered problematic metals concentrations at other sites in the vicinity. Based on our understanding your requirements, we propose to modify the sampling locations as follows. 1) For those sample locations where visibly stained soil does not extend beyond two feet below the leach line, the two and six foo~-' samples will be obtained. 2) If ~, u~bly sta~ soil extends beyOnd two feet below the leac.~ line, a~.=~.: ~he stained soil is excavated and 365§AOOL. WRK106~092 ~ Mr. Terry L. Gray Additional Requirements for Unocal No. 3655 June 30, 1992 Page 2 mobile laboratory TRPH results confirm removal of soils with over 50ppm TRPH, soil samples will be obtained for metals analysis at two and six feet below the limits of the stained soil. 3) As you suggested, additional samples may be collected below the six foot samples. These samples may be analyzed after review of the results from the analysis of shallower samples. The depths at which these deeper samples will be obtained will be dictated by the conditions encountered at the time of the septic system removal. 4) In an effort to help determine if the metals concentrations that are present in the samples are consistent with naturally occurring concentrations, background samples will be obtained and analyzed for appropriate metals. Initially, it is anticipated that only the shallower samples from each of the sample locations will be analyzed. The results of these analYses will be used to determine which, if any, additional samples should be analyzed or which additional analytes should be tested. We are presently scheduled to start work tomorrow morning at 9:00. If you should need additional information or have any questions, please call me or Warren Gross at (209) 264-0444. Sincerely, Steve Curra Project Geologist 3655ADOL. ~RK106~092 F GeoResearch 1713 Tulare, Suite 113 Fresno, California 93721 . ,~. (209) 264-0444 ~. '~ (800) 523-4786 Fax: (209) 264-9800 June 18', 1992 Mr. Terry L. Gray Hazardous Materials Inspector County of Kern Environmental Health.Services Department 2700 "M" Street, Suite 300 Bakersfield, CA 93301 RE: Unocal 'Service Station No. 3655, 2600 Pierce Road, Bakersfield, California, GeoResearch Project No. 92080. Dear Mr. Gray: In the recent subsurface investigation conducted by GeoResearch at the above-referenced site, please recall that the ¢larifier drain line from the service bay area was uncovered and found to be connected to the leach line which was traced to the septic tank. A seepage pit was fed by a sewer line which led from the septic tank. Subsequently, the dry septic tank and seepage pit sediments were sampled in accordance with the Class V Injection Well Program administered by your department. According to laboratory analyses (see enclosure), sediments in the septic tank and seepage pit did not Contain detectable concentra- tions of TCLP volatile organics or TPH-Diesel, nor did they ignite at temperatures up to 200°. For each of the sediment samples, CAM metal concentrations were well below the Title 22 standards which would designate them as a hazardous waste. TRPH concentrations for the septic tank and seepage pit sediments were 510 mg/kg and 28 mg/kg, respectively. Analysis of the water samples obtained from the septic tank also revealed that there were no detectable concentrations of TCLP volatile organics or TPH-D. The sample was not ignitable and detectable concentrations of CAM metals were below MCL Standards as presented in the "Drinking Water Regulations and Health Advisories" (April, 1992). The TRPH concentration was just above the detection limit at 0.6 mg/L. Class V injection well standards do not appear to be applicable for the seepage pit. We propose that it merely be filled with a half 3655SEP. LETO61892F4 GeoResearch is a division of GEOSERVICES, a California corporation Mr. Terry L. Gray Unocal Service Station No. 3655 June ~8, 1992 Page 2 sack cement/sand slurry to 5 feet below land surface (bls) and abandoned in-place. All construction.materials from land surface to 5 feet bls would be removed and disposed as construction debris. As Outlined in the Remedial Action Plan dated May 13, 1992 submit- ~ted to the KCEHD, the septic tank will be pumped out by a licensed sewer contractor. Solids from the septic tank will be stockpiled on-site to be disposed of at a class II landfill along with soil from the waste oil tank excavation. The septic tank itself will be removed for disposal as construction debris. Visually stained soils in the vicinity of the leach field will be excavated and stockpiled on Site as directed by a GeoResearch geologist. Confirmation soil samples will be collected in the excavation pit bottom and sidewalls to be analyzed for TRPH by an on-site mobile laboratory Two soil samples from the bottom of the excavation will be further analyzed for volatile organic compounds by U.S. EPA Method 8240, in accordance with the Class V Injection Well Program requirements. Four soil samples will be collected from the stockpiled soil for laboratory compositing and determina- tion of TRPH-and volatile organics (EPA 8240) concentrations. The results of these analyses will be submitted to your department for determination of the required means of disposal. Clean fill will be imported and compacted to restore the' site to the original grade. We look forward to receiving your authorization to proceed so that we may schedule site work as soon as possible. We will provide you with a minimum of 48 hours notice of the scheduled time of the start of additional site work. If you should need additional information or have questions don't hesitate calling me at (209) 264-0444. Sincerely, Warren w. Gross Associate Geologist enclosure: Laboratory Reports cc: Mr. Robert Boust, Unocal Corporation 3655SEP. LETO61892F4 GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 ~'62~5744 and 'resting ,~rvice LABORATORY REPORT--- GEORESEARCH DATE SAMPLED : 5/14,15/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: 5/14,15/92 FRESNO, CA 93721 DATE ANALYZED: 05/22/92 SAMPLE MATRIX: SOIL 'ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 92400-17 ANALYSES: 418.1 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT BY INFRARED SPECTROMETRY EPA METHOD 418.1 SAMPLE ID RESULTS DETECTION LIMIT (mg/kg) (mg/kg) SEPTIC TANK 510 '* 10 SEEPAGE PIT 28 10 T3-C-9 ND 10 T3-C-13 ND 10 ND - Not detected below indicated limit of detection. ~/ / ~~ Analyst: DR Reviewed and Approved: Report date:' ~his report pertains 'Only to the samples investigafi~'d 'and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST An Environmental Monitoring Post Office Box g0911, Long Beach, California g080g-0911 (310) 498-9515 (800) 624-5744' anti Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF TOTAL RECOVERABLE PETROLEUM HYDROCARBONS EPA METHOD 418.1 GEOTEST CLIENT NAME~ GEORESEARCH GEOTEST PROJECT NO, 92400-17 GEOTEST PROJECT NA~E= UNOCAL #3655 DATE ANALYZED: 05/15/92 SAMPLE MATRIX: SOIL ELAP certification #1623 Analyses method: 418.1 CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) METHOD BLANK ND 10 ACCURACY % ,LABORATORY CONTROL STANDARD 97 70 - 130% RECOVERY % MATRIX SPIKE 95 70 - 130% % ACC E~T~B~E-RA~GE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 100 70 - 130% Checked and Approved: GEOTEST An Environmental Monitoring Post Office Box 9091 i, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMKRY ANALYSIS OF TOTAL RECOVERABLE PETROLEUM HYDROCARBONS EPA METHOD 418.1 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 92400-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: 05/22/92 SAMPLE MATRIX: SOIL ELAP certification #1612 Analyses method: 418.1 CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) METHOD BLANK ND 10 ACCURACY % LABORATORY CONTROL STANDARD 101 70 - 130% RECOVERY % MATRIX SPIKE 101 70 - 130% % Ac~EPTABLE'"R-A~GE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 1OO 70 - 130% Checked and Approved: Report Date: GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90~09-0911 (310) 498-9515 (800) 624-5744 and Testing Service GEORESEARCH DATE SAMPLED : O5/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O5/14/92 FRESNO, CA 93721 DATE ANALYZED: 05/22/92 SAMPLE MATRIX: WATER ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 92400-17 ANALYSES: 418.1 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT BY INFRARED SPECTROMETRY EPA METHOD 418.1 SAMPLE ID RESULTS DETECTION LIMIT (mg/L) (mg/L) SEPTIC TANK~ 0.6 0.5 ND - Not detected below indicated limit of detection. ~/ ~/~/ Analyst: SJ Reviewed and Approved: v Report date: /~ ~'h'is report pertains on"ly to t~'~ samples investig'~"{ed and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF TOTAL RECOVERABLE PETROLEUM HYDROCARBONS EPA METHOD 418.1. GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 92400-17 GEOTEST PROJECT NAME: UNOCAL $3655 DATE ANALYZED: 05/22/92 SAMPLE MATRIX: WATER ELAP certification $1612 · Analyses method: 418.1 CONCENTRATION DETECTION LIMIT (mg/L) (mg/L) METHOD BLANK ND O.5 ACCURACY % LABORATORY CONTROL STANDARD 98 70 - 130% RECOVERY % MATRIX SPIKE 87 70 - 130% % ACCEPTABLE RANGE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 98 7° - 130% Checked and Approved: Report Date: GEOTEST An Environmental Monitoring POSt Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Se~ce LABORATORY REPORT GEORESEARCH DATE SAMPLED : O5/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED= O5/15/92 FRESNO, CA 93721 DATE ANALYZED= ' 05/23/92 SAMPLE MATRIX= SOIL ATTENTION= WARREN GROSS CLIENT ID = 9.2080 GEOTEST PROJECT NO.: 92400-17 ANALYSES= TPM-D PROJECT NAME= UNOCAL #3655 LOCATION= 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT BY GAS CHROMATOGRAPHY CAL/DOHS TPH FOR DIESEL SAMPLE ID RESULTS DETECTION LIMIT (mg/kg) (mg/kg) SEPTIC TANK ND 10 SEEPAGE PIT ND 10 ND - Not detected below indicated limit of detection. ~//_~~ Analyst: MB Reviewed and Approved= Report dates Thi~ report pertains only to th~' samples investigat"ed and'"'d0es not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. '~m m m m m _m .GEOTEST An Environmental Monitoring Post OfficeBox g0gl 1, Long Beach, California g080g-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF HYDROCARBON CONTENT BY GAS CMROMKTOGRAPHY TOTAL PETROLEUM HYDROCARBONS - DIESEL GEOTBST CLIENT NAME, GBORESEARCH GEOTEST PROJECT NO, 924OO-17 GEOTEST PROJECT NAME, UNOCAL #3655 DATE ANALYZED, 05/23/92 SAMPLE MATRIX= SOIL CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) METHOD BLANK ND 10 ACCURACY % LABORATORY CONTROL STANDARD 107 70 - 130% % ACCEPTABLE RANGE RECOVERY % MATRIX SPIKE 125 70 - 130% % ACCEPTABLE RANGE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 73 70 - 130% Report Date.. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT GEORESEARcH DATE SAMPLED : 05/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O5/15/92 FRESNO, CA 93721 DATE ANALYZED: 05/22/92 SAMPLE MATRIX: WATER ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO., 92¢OO-17 ANALYSES: TPM-D PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT BY GAS CHROMATOGRAPHY CAL/DOHS TPH FOR DIESEL SAMPLE ID RESULTS DETECTION LIMIT (mg/L) (mg/L) 'SEPTIC TANK ND 0.5 ND - Not detected.below indicated limit of detection.~/// Analyst: DR, MB Reviewed and Approved: Report date,'' '~/r/{7. Th'is report pertains Only to the samples invest"~'~ated ~'d'" does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF HYDROCARBON CONTENT BY GAS CHROMATOGRAPHY TOTAL PETROLEUM HYDROCARBONS - DIESEL GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 924OO-17 GEOTBST PROJECT NAMEs UNOCAL #3655 DATE ANALYZED~ 05/22/92 SAMPLE MATRIX: WATER CONCENTRATION DETECTION LIMIT (mg/L) (mg/L) METHOD BLANK ND 0.5 ACCEPTABLE RANGE ACCURACY % LABORATORY CONTROL STANDARD 103 70 - 130% % ACCEPTABLE RANGE RECOVERY % MATRIX SPIKE 117 70 - 130% Checked and Approved: .~~ Report Date: ~//~ r GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 908090911 (310) 498-9515 (800) 624-5744- and Testing Service LABORATORY REPORT GEORESEARCH DATE SAMPLED : 05/14/92 1713 TULARE STREET. SUITE 113 DATE RECEIVED= O5/15/92 FRESNO. CA. 93721 DATE ANALYZED= 05/26/92 SAMPLE MATRIX= SOIL 'ATTENTION: WARREN GROSS CLIENT ID = 92080 GEOTEST PROJECT NO.~ 924OO-17 ANALYSES= FLASHPOINT PROJECT NAME: UNOCAL #3655 LOCATION= 2600 PIERCE ROAD BAKERSFIELD, CA FLASHPOINT EPA HETHOD 1010 SAMPLE ID RESULTS SEPTIC TANK DID NOT IGNITE UP TO 2000 SEEPAGE PIT DID NOT IGNITE UP TO 200° ND - Not detected below indicated limit of detection:. ~~/~/~/~~./~ Analyst= SC Reviewed and Approved: Report date= T~'~s report pertains only to the samples inve~'t'~'~a~ed' 'and' 'does not necessarily apply to other apparently identical or 'similar materials. This report is submitted'for the exclusive use of the client to whom it is addressed' GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service L.A B O R A T O R Y R E P O R T GEORBSEARCH DATE SAMPLED : O5/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED~ 05/15/92 FRESNO, CA 93721 DATE ANALYZED: 05/26/92 SAMPLE MATRIX~ WATER ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 92400-17 ANALYSES~ FLASHPOINT PROJECT NAME~ UNOCAL #3655 LOCATION~ 2600 PIERCE ROAD BAKERSFIELD, CA FLASHPOINT EPA METHOD 1010 SAMPLE ID RESULTS SEPTIC TANK DID NOT IGNITE UP TO 200~ ND - Not detected below indicated limit of detection. ~/~_~/.// Analyst: SC Reviewed and Approved: Report date, '' '~/~/~C/ This report pertains only to "the samples investigated and dOes not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. ~F:OTI=RT i~ clivi~ir~n nf ~l=:l~l=l::lVll~.l::.~ ~ C'~lifnrniR c. nrnnration. GEOTEST An Environmental Monitoring Post Office Box g0gl 1, Long Beach, California g(~11 (310) 498-9515 (SOO) 624-5744 and Testing Se~ce L A B 0 R.A T 0 R Y R E P 0 R T _. GEORESEARCH DATE SAMPLED = 05/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O5/15/92 FRESNO, CA 93721 DATE ANALYZED: 05/29/92 SAMPLE MATRIX: WATER ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 924OO-17 ANALYSES: 8240 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA PAGE 1 OF 2 SAMPLE ID: TRIP BLANK ANALYSIS OF VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ MASS SPECTROMETRY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT (ug/L) (ug/L) Chloromethane ND 10 Bromomethane ND 10 Vinyl chloride ND 10 Chloroethane ND 10 Trichlorofluoromethane ND 10 1,1-Dichloroethene ND 10 Methylene chloride ND 10 1,1-Dichloroethane ND 10 trans-l,2-Dichloroethene ND 10 Chloroform ND 10 1,2-Dichloroethane ND 10 1,1,1-Trichloroethane ND 10 Carbon tetrachloride ND 10 Bromodichloromethane ND 10 1,2-Dichloropropane ND 10 ND - Not detected below indicated limit of detection. ~///~/// Analyst: PT Reviewed and Approved: · Report date:' ' ~his report pertains only to the samples investigated 'and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST~o~ office Boxg0911, Long Beach, California g0809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring - and Testing Service LABORATORY REPORT --- 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O5/15/92 FRESNO, CA 93721 DATE ANALYZED: 05/29/92 SAMPLE MATRIX: WATER ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 92400-17 ANALYSES= 8240 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA PAGE 2 OF 2 SAMPLE ID: TRIP BLANK A~ALYS~S--U~ V~IL~'ORGANi~ BY GAS C~RO~T~U~RAP~Y/ MASS SPECTROMETRY BY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT (ug/L) (ug/L) cis-l,3-Dichloropropene ' ND 10 Trichloroethene ND 10 Dibromochloromethane ND 10 1,1,2-Trichloroethane ND 10 Benzene ND 10 trans-1,3-dichloropropene ND 10 Bromoform ND 10 Tetrachloroethene ND 10 1,1,2,2-Tetrachloroethane ND 10 Toluene ND 10 Chlorobenzene ND 10 Ethylbenzene ND 10 m, p-Xylenes ND 10 o-Xylene ND 10 1,3-Dichlorobenzene ND 10 1,4-Dichlorobenzene ND 10 1.2-Dichlorobenzene ND 10 Analyst:PT Reviewed and Approved: /,/~/ Report date: This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST *' An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT ~ARCH .... DATE SAMPLBD 1713 TULARE STREET, SUITE 113 DATE RECEIVED~ O5/15/92 FRESNO, CA 93721 DATE ANALYZEDs 05/26/92 SAMPLE MATRIXs WATER ATTENTION= WARREN GROSS CLIENT ID : 92080 ~ GEOTEST PROJECT NO.s 924OO-17 ANALYSES= TITLE 22 METALS PROJECT NAMEs UNOCAL #3655 SAMPLE IDs SEPTIC TANK 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF METALS BY ICP EPA METHOD 6010 METALS RESULTS DETECTION LIMITS (mg/L) (mg/L) Antimony ND O.O18 Arsenic ND 0.054 Barium O.10 O.OO1 Beryllium ND 0.0004 Cadmium ND 0.002 Chromium 0.026 0.006 Cobalt ND 0.003 CoPper ND 0.025 Lead ND O.O16 Molybdenum ND 0.02 Nickel 0.022 0.004 Selenium ND 0.003 Silver ND '0.004 Thallium ND 0.023 Vanadium O.O14 0.003 Zinc O.21 O.O21 ND - Not detected. Analyst= 'SC Reviewed and Approved= Report date This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST An Environmental Monitoring Post OfficeBox g0911,' Long Beach, California g0~Y3-0911 (310)~498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY --' ANALYSIS OF METALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAME, GEORESEARCM GEOTEST PROJECT NO, 924OO-17 GEOTEST PROJECT NAME= UNOCAL #3655 DATE ANALYZED,OS/26/92 SAMPLE MATRIX,WATER Elements METHOD BLANK DETECTION LIMIT (mg/L) (mg/L) Antimony ND O. 018 Arsenic ND 0. 054 Barium ND 0. OO1 Beryllium ND 0. 0004 Cadmium ND 0. 002 ~ Chromium ND 0.006 Cobalt ND 0.003 Copper ND 0.025 Lead ND 0.016 Molybdenum ND 0.02 Nickel ND 0.004 Selenium ND O.003 Silver ND 0.004 Thallium ND 0. 023 Vanadium ND 0. 003 Zinc ND O.021 Checked and Approved: .~~~~/ Report Date, ~ ~;I")TI:.q'T ie n.rlivieinn nf ~I=(~.~I::I~VI~I=~ n (".nlifnrnia c. nrr~ration. An Environmental Monitoring and Testing Service · QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF METALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 924OO-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED:OS/26/92 SAMPLE MATRIX:WATER Elements LCS ACCURACY % Antimony 102 Arsenic 105 Barium 105 Beryllium 101 Cadmium 105 Chromium 101 Cobal[ 101 Copper 104 Lead 104 Molybdenum 101 Nickel 102 Selenium 1OO Silver. 110 Thallium 108 Vanadium 104 · Zinc 108 Checked and Approve~/~~~~ Report Date: GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY --- ANALYSIS OF METALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAME, GEORESEARCM GEOTEST PROJECT NO, 924OO-17 GEOTEST PROJECT NAME, UNOCAL #3655 DATE ANALYZED,O5/26/92 SAMPLE MATRIX,WATER Elements MATRIX SPIKE MATRIX SPIKE RECOVERY DUPLICATE REPRODUCIBILITY % % Antimony 87 1OO Arsenic 98 99 Barium 101 100 Beryllium 95 1OO Cadmium 93 1OO Chromium 96 Cobalt 96 101 Copper 98 101 Lead 95 101 Molybdenum 97 100 Nickel 96 100 Selenium 95 102 Silver 97 113 Thallium 96 99 Vanadium 99 101 Zinc lO2 lO4 Checked and Approved..~ r~~ Report Date GEOTEST is a division of GEOSERVICES. a California corooration ..... GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 908(O-0911 (310) 498-9515 (800) 624-5744 ~ and Testing Service LABORATORY REPORT 1713 TULARE STREET, SUITE 113 DATE RECEIVED: 05/15/92 FRESNO, CA 93721 DATE ANALYZED: 05/26/92 SAMPLE MATRIX= SOIL ATTENTION~ WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.~ 924OO-17 ANALYSES: TITLE 22 METALS PROJECT NAME: UNOCAL #3655 SAMPLE ID: SEPTIC TANK 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF METALS BY ICP EPA METHOD 6010 METALS RESULTS DETECTION LIMITS (mg/kg) (mg/kg) Antimony ND O.91 Arsenic 12 7.5 Barium 120 0.02 Beryllium ~ 0.13 0.06 Cadmium ND 0.40 Chromium 22 O.12 Cobalt 5.7 0.32 21 0.29 Copper .. Lead 41 2.5 Molybdenum 4.8 0.75 Nickel 8.3 0.20 Selenium ND 4.0 Silver ND 0.18 Thallium 19 13 Vanadium 19 O.17 Zinc 62 O.11 ND - Not detected. Analyst: SC Reviewed and Approved: Report date: . This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST ~o~, office Box g0911, Long Beach, California g080g-0gll (310)498-g515 (800)624-5744 An Environmental Uonitoring and Testing Service LABORATORY REPORT ~~CH ...... ' ........... DATS SAMPLSD 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O5/15/92 FRESNO, CA 93721 DATE ANALYZED: 05/26/92 SAMPLE MATRIX, SOIL ATTENTION: WARREN GROSS CLIENT ID ~ 92080 GEOTEST PROJECT NO.: 924OO-17 ANALYSES: TITLE 22 METALS PROJECT NAME: UNOCAL #3655 SAMPLE ID: SEEPAGE PIT 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF METALS BY ICP EPA METHOD 6010 METALS RESULTS DETECTION LIMITS (mu/kg) (mu/kg). Antimony ND O.91 Arsenic 9.3 7.5 Barium 75 0.02 Beryllium 0.14 0.06 Cadmium ND 0.40 Chromium' 9.5 O.12 Cobalt 2.5 0.32 Copper 14 0.29 Lead ND 2.5 Molybdenum 4.0 0.75 Nickel 4.5 0.20 Selenium ND 4.0 Silver ND 0.18 Thallium ND 13 Vanadium 15 O.17 Zinc 66 O.11 Analyst: SC Reviewed and Approved, Report date: This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST ~o~ office Box g0glllLong Beach, California g0~0g-0911 (310)49~-g515 (800) 624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY --- ANALYSIS OF METALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAME= GEORESEARCH GEOTEST PROJECT NOs 924OO-17 GEOTEST PROJECT NAMEs UNOCAL #3655 DATE ANALYZEDs05/26/92 SAMPLE MATRIXsSOIL Elements METHOD BLANK DETECTION LIMIT (mg/kg) (mg/kg) Antimony ND O.91 Arsenic ND 7.5 Barium ND 0.02 Beryllium ND 0.06 Cadmium ND 0.40 Chromium ND 0.12 Cobal= ND 0.32 Copper ND 0.29 Lead ND 2.5 Molybdenum ND 0.75 Nickel ND 0.20 Selenium ND 4.0 Silver ND 0.18 Thallium ND 13 Vanadium. ND O.17 Zinc ND O.11 Checked and Approved~ GEOTEST .os, office Box 90911. Long Beach, California 90809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF METALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAME~ GEORESEARCH GEOTEST PROJECT NOt 924OO-17 GEOTEST PROJECT NAME~ UNOCAL #3655 DATE ANALYZED~05/26/92 SAMPLE MATRIX~SOIL Elements LCS ACCURACY % Antimony 102 Arsenic 105 Barium 105 Beryllium 101 Cadmium 105 Chromium 101 Cobalt 101 Copper 104 . Lead. 104 Molybdenum 101 Nickel 102 Selenium 100 Silver 110 Thallium 108 Vanadium 104 :hecked and Approved= /y//Z ~ Report Date: ~/,~/~/ GEOTEST An Environmental Monitoring Post Office Box g0gl 1, Long Beach, C~lifornia 90809-O911 (310) 498-95~ 5 (800) 624-5744 an~J Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF METALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAME= GEORESEARCH GEOTEST PROJECT NO: 92400-17 GEOTEST PROJECT NAME= UNOCAL #3655 DATE ANALYZED=05/26/92 SAMPLE MATRIX=SOIL Elements MATRIX SPIKE MATRIX SPIKE RECOVERY DUPLICATE REPRODUCIBILITY % % Antimony 87 1OO Arsenic 98 99 Barium 101 100 Beryllium 95 100 Cadmium 93 100 Chromium 96 J 101 Cobalt 96 101. Copper 98 101 Lead 95 101 Molybdenum 97 100 Nickel 96 100 Selenium 95 102 Silver 97 113 Thallium 96 99 Vanadium 99 101 Zinc 102 104 Checked and Approved: ~///b/~/~~/ ' Report Date: ~ GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT GBORESEARCH DATE SAMPLED , O5/14/92 1713' TULARE STREET, SUITE 113 DATE RECEIVED, 05/15/92 FRESNO, CA 93721 DATE 'ANALYZED: 05/27/92 SAMPLE MATRIX: SOIL CLIENT ID , 92080 ATTENTION: WARREN GROSS GEOTEST PROJECT NO., 924OO-17 ANALYSES: 7471 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF MERCURY BY COLD VAPOR/ATOMIC ABSORPTION EPA METHOD 7471 SAMPLE ID RESULTS DETECTION LIMIT (mg/kg) (mg/kg) SEEPAGE PIT 0.024 0.O10 SEPTIC TANK 0.060. 0.010 ND - Not detected below indicated limit of Analyst: SC Reviewed and Approved: Report date:' ' This 'report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service. QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF MERCURY BY COLD VAPOR/ATOMIC ABSORPTION EPA METHOD 7471 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 924OO-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: 06/02/92 SAMPLE MATRIX: SOIL CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) METHOD BLANK ND O.01 ACCURACY % LABORATORY CONTROL STANDARD 112 70 - 130% ~ A-CC~A~TJE-~KNGE RECOVERY % MATRIX SPIKE 1OO 70 - 130% % Ad~'~ABLE RANGE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 110 70 - 130% Checked and Approved~ Report Date: (;.iCOTP.~'T i~ n clivi¢inn nf l~l=CI.ql=l~tlll't.l:~ ~ C'.~lifnmin e. nrnnr';Itic~n.. __m m m _m GEOTEST ~o~ office Box g0911, Long Beach, California g080g-0gll (310)498-g515 (800)624.-5744 An Environmental Monitoring an~l Testing Se~ce LABORATORY REPORT GEORESEARCH DATE SAMPLED , 05/14/92 1713 TULARE STREET. SUITE 113 DATE RECEIVED, O5/15/92 FRESNO. CA 93721 DATE ANALYZED, 05/27/92 SAMPLE MATRIX, WATER CLIENT ID , 92080 ATTENTION, WARREN GROSS GEOTEST PROJECT NO., 92400-17 ANALYSES~ 7470 PROJECT NAME~ UNOCAL #3655 LOCATION, 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF MERCURY BY COLD VAPOR/ATOMIC ABSORPTION EPA HETHOD 7470 SAMPLE ID RESULTS DETECTION LIMIT (ug/L) (ug/L) SEPTIC TANK ND 0.10 ND - Not detected below indicated limit of detection. ~/~// Analyst: SC Reviewed and Approved,./f~/f~~' Report date, ~f~/)~ This .report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report' is submitted for the exclusive use of the client to whom it is addressed. ,: GEOTEST An Environmental Moni.toring Post Office Box'90911,, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-,5744 and Testing Service " QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF MERCURY BY COLD VAPOR/ATOMIC ABSORPTION EPA METHOD 7470 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 924OO-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: 05/27/92 'SAMPLE MATRIX: WATER CONCENTRATION DETECTION LIMIT (ug/L) (ug/L) METHOD BLANK ND 0.10 ACCURACY % LABORATORY CONTROL STANDARD 96 70 - 130% % 'ACC~PTABLE~'~AN~ RECOVERY % MATRIX SPIKE 96 70 - 130% % AcCEPTABLB:RANG~ REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 165 70 - 130% Checked and Approved: Report Date: GEOTEST .os, office.Box90911, Long Beach, California 90809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Semice LABORATORY REPORT GEORESEARCH DATE SAMPLED : O5/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: 05/15/92 FRESNO, CA 93721 DATE ANALYZED: 05/28/92 SAMPLE MATRIX: TCLP EXTRACT ATTENTION: WARREN GROSS CLIENT ID ; GEOTEST PROJECT NO.: 924OO-17 ANALYSES: 8240 SAMPLE ID: SEPTIC TANK PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ MASS SPECTROMETRY BY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT TC LIMIT (mg/L) (mg/L) (mg/L) Carbon tetrachloride ND 0.01 0.5 Chlorobenzene ND O.01 100 Chloroform ND 0.01 6.0 1,4-Dichlorobenzene ND 0.O1 7.5 1,2-Dichloroethane ND 0.01 0.5 1,1-Dichloroethylene ND 0.01 0.7 Tetrachloroethylene ND 0.O1 0.7 Trichloroethylene ND 0.01 0.5 Vinyl chloride ND 0.01 0.5 Benzene ND 0.01 0.5 Methylethylketone ND O.O1 200 ND - Not detected below indicated limit of detection.~/~/~// Analyst.: PT Reviewed and Approved: Report date: This report pertains only to the samples 'investig~'~'d'"~ and d'0es not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is __m m m GEOTEST .os~ office Box 90911. Long Beach, California 90809-0911 (310)498'9515 (800)624-5744 An Environmental Monitoring and Testing Service LABORATORY RB PORT GEORESEARCH DATE SAMPLED , O5/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED, O5/15/92 FRESNO. CA 93721 DATE ANALYZED, 05/28/92 SAMPLE MATRIX: TCLP EXTRACT' ATTENTION: WARREN GROSS CLIENT ID GEOTEST PROJECT NO.: 924OO-17 ANALYSES: 8240 SAMPLE ID: SEPTIC TANK PROJECT NAME: UNOCAL #3655 (SOIL) LOCATION: 2600 PIERCE ROAD BAKERSFIELD. CA ANALYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ 'MASS SPECTROMETRY BY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT TC LIMIT (mg/L) (mg/L) (mg/L) Carbon tetrachloride ND 0.01 0.5 Chlorobenzene ND 0.01 1OO Chloroform ND 0.01 6.0 1,4-Dichlorobenzene ND O.Oi 7.5 1,2-Dichloroethane ND 0.01 0.5 1,1-Dichloroethylene ND 0.01 0.7 Tetrachloroethylene ND 0.01 0.7 Trichloroeth¥1ene ND 0.01 0.5 Vinyl chloride ND O.01 , 0.5 Benzene ND O.O1 0.5 Methylethylketone ND 0.01 200 ND - Not detected below indicated limit of detection. ~~/// Analyst: PT Reviewed and Approved: Report date: /' '~//~/44~ ~his report pertains only to the samples investigated and 'does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-O911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT GEORESEARCH DATE SAMPLED : 05/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O5/15/92 FRESNO, CA 93721 DATE ANALYZED: 05/28/92 SAMPLE MATRIX: TCLP EXTRACT ATTENTION: WARREN GROSS CLIENT ID GEOTEST PROJECT NO.: 924OO-17 ANALYSES: 8240 SAMPLE ID: SEEPAGE PIT PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ MASS SPECTROMETRY BY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT TC LIMIT (mE/L) (mE/L) (mE/L) Carbon tetrachloride ND 0.01 0.5 Chlorobenzene ND 0.01 1OO Chloroform ND 0.01 6.0 1,4-Dichlorobenzene ND O.O1 7.5 1,2-Dichloroeth~ne ND 0.01 '0.5 1,1-Dichloroethylene ND 0.01 0.7 Tetrachloroethylene ND 0.01 0.7 Trichloroethylene ND 0.O1 0.5 Vinyl chloride ND 0.01 0.5 Benzene ND O.01 0.5 Hethylethylketone ND 0.01 200 ND - Not detected below indicated limit of deteCtion. Analyst: PT Reviewed and Approved: ~. - Report date: '~.//~./) ~ This report pertains onI'y to the samples inve st iq~'~'~"~' and ~oes not necessarily apply to other apparently identical or similar materials. This report is' submitted for the exclusive use of the client to whom it is GEOTEST PostOffice Box90911, Long Beach, California 90809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMKRY ,ANALYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ MASS SPECTROMETRY BY EPA METHOD 8240 GEOTEST CLIENT NAME, GEORBSEARCH GEOTEST PROJECT NO, 92400-17 GEOTEST PROJECT NAMEs UNOCAL #3655 DATE ANALYZED~05/29/92 SAMPLE MATRIX:TCLP EXTRACT COMPOUND METHOD BLANK DETECTION LIMIT CONCENTRATION (mu/L) (mg/L) Carbon tetrachloride ND O.O1 Chlorobenzene ND O.O1 Chloroform ND O.01 1,4-Dichlorobenzene ND O.O1 1,2-Dichloroethane ND 0.01 1,1-Dichloroethylene ND O.O1 Tetrachloroethylene ND 0.01 Trichloroethylene ND 0.01 Vinyl chloride ND 0.01 · Benzene ND O.O1 Methylethylketone ND O.O1 Checked and Approved: Report Date, ~/~,//~% An Environmental Monitoring and Testing .Service QUALITY ASSURANCE/QUALITY CONTRQL SUH'MkRY ANALYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ MASS SPECTROMETRY BY EPA METHOD 8240 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 924OO-17 GEOTEST PROJECT NAME' UNOCAL #3655 DATE ANALYZED:05/29/92 SAMPLE MATRIX:TCLP EXTRACT ~'OUND ......... % ACCURACY Vinyl chloride 127 1,1-Dichloroethy!ene 101 1,2-Dichloropropane 86 Chlorobenzene 84 Checked and Approved.. Report Date: ..':~'~f~:~' .... ~ ..... . ,: ~,:~.'~.:'r,~.{'::,":. ~.'.'v".,;: :,,".:".:.,'.:,.',' ~":~?.:'-.-'.~.,J"~'.~. .>.'-', ,' : ',~-~!;,~:',','~.>/7: ~,,',~ , :..;'.?:~'~¢A~:~,;,,~:'~..~,~ ."'L~::.:,~:~'~.~ .~. ~:,~, 00bispo Avenue,. Suite A ..'-:~: ..... .:: .,.' ..'. ..... ~,* . ,-~ "..,,., .. ........ ~ %'-":* ...... ,'*?~'. ........ ;, ~:~ ;,~t~ ,, ~,~4.~ :.~., , ..... ~:-,~ *.:;:,.*,,, ~:~ ;.. :*.'..- ,,..- ~ ~.;, ,,... ,,:r?,. ,;'-:~,)? ~:, .~ "~',.~,.'4,':~?~:~'~-~.~~ ~,~g::'!~"~-~':~ ~, ~~ng Be,ch, C,Iifornla 90804 ....... ~ ................... '-~:..,~ ................... ~..~ ',.,,~ ~ ~ ........ Telephone: (213) 498-9515 .-,~, ,:, :, ?:,:..:,,~:.::,~ .... :,: :-::": ,,, ::.'., . ?.~,~.~',~',* ~? · ~ ~ ................ .... ~,.~,.~ ~,?~ ~. ,~ ~.:,..~ ~..... ,._..:.,..~, .~:...~. CHAIN O~CUSTODY RECORD ~a~SAMPLENO. DATE I TIME LOCATION ~= ~= ' ~ ' ~ ="' "' ..... ~: ' ~'~:':}~:': ~' ~': :' *~' '+ :' ' ' ' ' ~.,.~ .~ . ........... , , ~ ...... ,.. ............ , ,;~:G~¢i2. ~: ..: . . , . . ...... · .. ,~;~f:~.~';,~:~., :.~ j · .',:~, ~ .. :~. . , ~ . :., ., ~.. .... .?. .~;;:f:- ,::...c~j,.:.,',~- ~ ~,: .. ~.~: . ,, :',','~ -~, m.: ~: ,,,~.: t.:~' :.' -,, .,.. ., . :,' .:.'..: ,., ' ',. , ~.~'~ , , . ~ .; .,'-,~:. ,.~.~ :' ;~ ? ~ % ,~'~, ~ S ]~- , .'.~ , 7:'~: ·: .~ 7.,.':'. , '. ,: c "= '.,: .' : .. '. ... ,' , ,'.., . · ' · ' ' y :~ ' , .,. : ~ '~. ,~ ~: ~ ~.~ ' ~, '.~?~ ~;~'"",::.::..~::'~ ,'h':h.~!:'.:,:~' ~:.:'.'~:::?. :"-".','~:" ,::.~'-.:'..-. '. '~:' '.~: '.: t:'." ~,':. I: ..' ~L.~' ~'?.% :~,~:'~'~', ~x~ ';,~ ,~?: ':f~/*':'~ ~":- ' ,'' '::,', . :-~,"' ~". :" ' ".."::': *':.;: '...,." :'",' '.-:-" ,'" ~" :. ,', "~ ',.-" . ~ '.' ,~'.. .'. '",-.-, ~ I'REUN~U~SHED BY %. -~, '~F.'~:d.' DATE I · REUNQU~SHED BY. :..' ~':.,""-..~.. DATE' ~ RELINQUISHED BY.:'?:'.'.':.::.~:~ ' : '-':' '" 'f"~'7 '% ~.':'~::?::F: :'~,'.. ',.- ~ ' : .~.:.; '.- ,.': ~, ,..- '. ":., , ';.'.' ' : :..;,, .:... ?:.~:'...':: ', .'~ ,, '=-,.'v,::~'~:~:~?::~?~ :~4~ :~t~F~.~.:;~ . T NAME~:,,= ........ . .... .. ,,..~,, ~ .~::., P~NTEDNAME.~,...,....,~?, .,r ~ .......... ,..~. . PRINTED NAME ,,,~,~ :,., .,.,.,:~,~-~, ~..,.,,;; '~:~:t:~.~C;? COMPANy.. d.:':..'.:.::'~,.::.,?;;:.t..:.:'~;:,..,..'~ ~?~;:~:':~.:'- COMPANY ,':5,.':..~...::..:.'.:.~:':?t:..~;~J:~,.;';.??~,'. ~,~' , CalifOrnia 90804 ~':i'.. ~:::'i.i,i. iii:~:~,'CNAIN-OF. CUSTODY, RECORD .*.~.=,.~,. - ~...: .~:.: . .~ . . ...~.. . NO.' DATE ' TIME LOCATION !: :' :.~':,'.. ~. ?: ':. :?.!:,:))::!'::~ ':.V':::, i~'.: :' 'b ')' :~.: BY'.'...: :' ~. '" RELINQUISHED By.. PRINTED NAME P~INTED NAM .~.::; "."m ~..'~:,-.., .... :',:..::?:~?:..: ?.:,,,:, .,:. .. .: .,. ,:; ?:.:::.:.,..?'"':. ':'. ' ~ .'. RECEIVED I OIC Shallow Injection' ll/90 DATE OF INSPECTION /~ ~ Y f ~ ! ~A . TIME: INSPECTOR(S)= f'"~rf~7 i~DITIONAL PARTICIPJ~I'S: t~lg;T' I. ~ue~aX In£ormation A. Introduce Yourself and All O~hers (Show Credentials) B. Ex~lain why you are there, go over ~he Notice of Inspe~ion. Have them read and si~ it C. (Need ~gal Info.) Ad,ess: p,o. ~o~ 7~oo Phone No.= .~o-~?7-~.~jy (sw~ BUSI~SS ~S, also ask for business license) E. Parent ' Company = Address: ~e ~ey a s~sidia~ of a co,ora=ion? ~e. inco~ora=ed in ~e S=a~e?: II. In~m~iew the Opmra~or~Na~m of Business A. How ~ng in Business~: ~ ,.,~s p B. Are ~ey a M~er of an Ass°cia=io~?' C. ~e ~ey aware of any Wa=er Supply Well ~ca=ion/O~ership: D. Site His=o~ - Years of Occupation, Previous O~ers and Uses of the Facility: ~,'~% e E. Products or Semites Offered?: ~,~ e F. Brief Description of any Process, Opera=ion, or Maintenance ~a= Produces Waste: H. Ma=erial Safe=y Da=a Shee=s?: I. Describe the Waste Disposal Practices: Solvent Hauler: Verification ReCeipts? How Often?: K. Waste Hauler: Verification Receipts? How Often?: L. Ask for Site Maps of Facility and As-Builts, Plumbing Plans for the dispOsalsystem: GENERAL SITE CONDiTIONS(Housekeeping, ease of entry, cooperation): SO~OUNDING LAND USE A. General appearance of the Well(s):. B. Susceptibility to Spills:' c. Class v Well(s) Status Yrs. of ODeratipn D. Oil/Water Separator, or grease trap device used: E. Are the Wells Pumped Out, if so How Often?i: F. Do the Wells Ever'get Plugged Up?.: G. Construction Details - TD, Diameter, Casing, (Measure): Are ~e i~4ect~on Wells ~egulatated by a State er Local Program?: I.Permit?: H.How are Spills, or Accidents Handled?: J. How are Floors Cleaned?: K. Where does the floor/lo= drainage water go?: L. Car Wash? If so, how is effluent disposed? Cleaners used?: M. How many autos are serviced daily?: DOCUMENTS TO REQUEST 1. Map of Facility 2~ As-built Diagrams,,~.plumbing Plans 3. Drillers Logs 4. Monitoring Well Data 5. Flow Diagram of Processes, Waste Generation, and Disposal ~. ManiJ~=s - Waste Disposal 7. Material Safety Data Sheets UNDERGROUND TNJECTTON CONTROL PROGRAH INBPECTTON REPORT Inspector /frfy ~ Fa¢±litv Infor nation Facility Name V~c~ { %~ %/~- .~'6 ~%~ Phone Parent Company Address City ~ State O~ Zip Contact Name and Position De.scription of waste stream Description of injection well DescriPtion of activity that may endanger ground water but not related to injection wells or tanks (e.g. ponds, spills) I_~p~ction.~B[grmation Inspection Date 5-/~-9 Number of Wells / Well Type Auto Service ,~ Industrial Waste Agricultural Drainage Storm Water Other Status of Wells Active Abandoned {~ Under Construction 02her Injectate Sampled(Y/N) Violation Fotu~d(Y/N) Follow-Up Needed(Y/N) RCRA Facil~t~ (Y/N) Comments FACILITY REPORTING PERSON: PHONE N0. COHMENTB= N E T A S S E S Si-? ~ V A L'U E 41,743 . ALUES CHANG'ED 06/12/8 ~ *** NO SUPPLEMENTAL RECORDS TO DISPLAY *** . PF1 TAX INFORMATION PF. 3 CHANGE ROLL TYPE PF4 PARCEL HISTORY * PF5/8 NXT/PRE SUPpL PF6 SUPPL. INFO PF? PEC.SUPPL. EVENT PFg/10 NXT/PRE PARCL PF23/24 PRINT NO/N FEED PFI? PRINT LATER IN BATCH qter parcel number 332 130 05 01 2 Ffile - P EVENT- 24-22 SA MN KS IM II S1 A3 K8 :32-130-05-02-1 Roll 1 FILE BEING PREPARED 92 STATUS - ACTIVE rea Code 001-017 Name COSTIGAN YVONNE S TR Deed 06540-0563 07/01/91 01 cd SD'3 ~ UNION OIL CO OF CAL-PROP TAX se .23010 CV 80164 Notf P O BOX ?600 ~X ~OS ANGELES CA 90051 ansus B~]] P O BOX 7600 oord LOS ANGELES CA 90051 oning Site 2600 PIERCE RD BAKERSFIELD S-CB ,- L/S 23 8/TP 29 TR/RG 27 Acres CP ~* VALU.ES *** Minera~ Land' Imprvmnts Other imps Pers/Prop Exemptions ~arket 31,348 10,395 N E T A S S E S S E D V A L U E 41,743 ALUES CHANGED 06/12/80 *** NO SUPPLEMENTAL RECORDS TO DISPLAY *** PFt TAX INFORMATION PF3 CHANGE ROLL TYPE PF4 PARCEL HISTORY PFE/8 NXT/PRE SUPPL PF6 SUPPL. iNFO PF7 PEC.SUPPL. EVENT PF9/10 NXT/PRE PARCL PF23/24 PRINT NO/W FEED PFI? PRINT LATER IN BATCH ~er parce3 number 332 130 05 02 1 File - P EVENT- 24-22 SA MW KS IM II S! A3 KB :32-130-05-01-2 Roll i FILE BEING PREPARED 92 STATUS - ACTIVE ~*ea Code 001-017 Name GERALDINE VERA V TR Deed 06577-0418 10/04/91 Oi cd SD 3 ~GERALDINE VERA V TRS se 23010 CV 80164 Notf P O BOX 9715 anYXs BAKERSFIELD CA 93389 us Bill P O BOX 9715 cord BAKERSFIELD CA 93389 ionfing Sffte 2600 PIERCE RD BAKERSFIELD S-CD L/S 23 8/TP 29 TR/RG 2? Acres CP ~-~o SI/2 OF SEC. 23 17. 2gs. R. 27 E. SCHOOL mST..¢7-$9 13 1-/7 332- (~ 57-,.?8 I-/9 70-9 c~OW r~ ( lO I I I ~ 4.86A~ I Noto: This mop Is f~ m#lm4n! ll~Polss J I le~l ~erthlp ~ dlvlilont ~ Iond f~ ASSE~ORS MAP GeoResearch 1713 Tulare, Suite 113 Fresno, California 93721 (209) 264-0444 (800) 523-4786 " .......... May 13, 1992 Mr. Terry L. Gray Hazardous Materials Inspector Kern County Environmental Health Department 2700 "M" Street, Suite 300 Bakersfield, CA 93301 RE: Unocal Service Station No. 3655, 2600 Pierce Road, Bakersfield, California. GeoResearch Project No. 92080 Dear Mr. Gray: The following California Business Plan Remedial Action Plan is being sent to you at the request of Mr. Robert Boust of Unocal Corporation. Included in this RAP is the scope of work which is to be completed for the Underground Injection Control Program. GeoResearch plans to complete the initial sampling (Pg. 5, Item iA) at the time of UST removal, May 14, 1992. This fax copy will be followed by a hard copy which will be mailed today. If you have any questions, please contact me at (209) 264-0444. Sincerely, Warren W. Gross Senior Geologist~ enclosure cc: Robert Boust, Unocal GeoResearch is a division of GEOSERVICES. a California corporation GeoResearch 1713 Tulare. Suite 113 Fresno, California 93721 (209) 264-0444 (800) 523-4786 May 13, 1992 Mr. Robert A. Boust Unocal Refining and Marketing Division Unocal Corporation / 2000 Crow Canyon Place, Suite 400 San Ramon, California 94583 California Business Plan Remedial Action Plan, Unocal Service Station No. 3655, 2600 Pierce Road, Bakersfield, California, GeoResearch Project No. 92080 Dear Mr. Boust: In response to your request, this California Business Plan Remedial Action Plan (CBP RAP) for the above-referenced site has been prepared for your use. We understand that this document is intended for internal use by Unocal for the purposes of estimating the potential cost of required remedial actions on the property, the time frames for the required site work, and the impact of remedial activities upon site improvements and site operation. Since remedial activities will take place concurrently with station demolition and the removal of USTs and appurtenances, the scope and cost of our typical clean closure activities are included in this document. The approximate extent of petroleum hydrocarbons in our investigation have been determined and do not constitute a large volume of soil. We anticipate that the Kern County Environmental Health Department (KCEHD) will permit excavation of all soils identified as containing petroleum hydrocarbons at the time of UST removal. The KCEHD requires that notification be given of the intent to excavate impacted soils at the time the permit for UST removal is drawn. The site assessment report prepared for the station indicated the presence of up to 50 cubic yards of soil containing TPH-G and BTEX in the vicinity of the southwest end of the west pump island. In addition,_ approximately 150 cubic yards of soil containing TPH- D/TRPH are estimated to be present in the septic tank and leach field area. Costs have also been included in this RAP for handling UN03655. RAP2 051392F GeoResearch is a division of GEOSERVICES. a California corporation Mr. Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 2 up to 200 cubic yards of soil -containing gasoline or other petroleum hydrocarbons upon removal of the USTs. Such soils, while not identified in our site assessment, may be encountered immediately adjacent to the USTs and/or appurtenances. PROPOSED SCOPE OF WORK Upon receipt of notification of the schedule for site demolition, GeoResearch will provide the KCEHD with written notification of Unocal's intent to, in conjunction with UST removal, perform excavation and confirmation soil sampling in association with limited volumes of soil containing petroleum hydrocarbons. The KCEHD will also be notified of Unocal's intent to close a leach field and, possibly, a seepage pit (which may have received petroleum hydrocarbons from auto service operations), in accordance with the provisions of applicable laws and regulations. USTs AND APPURTENANCES (clean closure activities) The following steps are anticipated: 1. GeoResearch personnel will observe the phases of station demolition which expose site soils. The location of any observed soil staining or other evidence of significant soil contamination will be noted. GeoResearch personnel will direct the segregation of potentially contaminated soils disturbed during demolition. 2. Appropriate soil sample locations for compliance with KCEHD requirements for UST removal soil sampling will be established and marked as soils in each area are exposed. 3. The condition of the USTs will be observed upon removal. Photographs will be taken of any noteworthy areas of the USTs, such as holes or corrosion-pitted areas. 4. Soil samples will be collected beneath the tanks, piping, and dispensers in accordance with KCEHD protocol: At depths of two and six feet beneath each end of the fuel tanks, the center of the waste oil tank, and at 20-foot intervals along piping and dispensers. It is estimated that 26 such samples will be collected. UN03655 .RAP2~ 051392F Mr. Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 3 5. Soil samples from beneath the fuel tanks, piPing and dispensers will be analyzed for TPH-G/BTEX. Up to four additional soil samples will be collected from the sidewalls of each UST excavation in order to provide Unocal with additional assurance of the nature of soils left in place. The majority of these analyses will be completed by the on- site mobile laboratory in order to delineate any areas where further soil excavation is warranted. 6. Soil samples from beneath the waste oil tank will. be analyzed for TRPH, TPH-G/BTEX, and halogenated organics (EPA Method 8010). In the event that stained soils are observed or these tests detect hydrocarbons, additional analyses may be performed on soil samples from the waste .oil tank pit. No costs are provided in this CBP RAP for any analyses beyond those specified above. 7. It is anticipated that a KCEHD inspector will observe all excavation and soil sampling associated with the USTs. Upon the removal of all soils identified as containing petroleum hydrocarbons and the concurrence of the inspector, all excavations should be backfilled and compacted to a minimum of 90% of the maximum density. Unocal should consider asking the contractor to provide certification of the compaction of the fill. GeoResearch will collect one sample of any imported fill soils and analyze the soil for TRPH, TPH-G/BTEX and total lead. The utilization of the imported soils will not be delayed pending the results of the analyses. SOUTHWEST END OF THE WEST PUMP ISLAND The following steps are anticipated: 1. It is estimated that up to 50 cubic yards of soils containing petroleum hydrocarbons will be removed by the Unocal contractor with a backhoe or excavator. Such soils will be stockpiled onsite. This volume of soil has not been considered part of the 200 cubic yards discussed in the following contingency section. 2. Upon removal of all visibly contaminated soil, confirmation samples will be collected from the base and sidewalls of the excavation and analyzed for TPH-G/BTEX by an on-site mobile laboratory in order to confirm the removal of all petroleum hydrocarbon-containing soil. If confirmatory samples indicate the presence of TPH-G, 'then additional excavation work will be conducted until confirmatory samples UNO3655.RAP2 051392F Mr. Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 4 indicate that all contaminated soil has been removed. 3. Four soil samples will be collected from the stockpile of the excavated hydrocarbon soils. One composite sample will be prepared from these samples by GEOTEST and analyzed for TPH- G/BTEX (CA DOHS/US EPA Method 8020) Continqency For Contaminated Soils - USTs/Piping · In the event that petroleum hydrocarbons are detected in the UST pits or along the associated piping, GeoResearch would direct the excavation and stockpiling of such soils. Representative samples of the stockpiled soils would be collected and analyzed for the appropriate constituents. Confirmation samples would also be collected and analyzed from native soils at the limits of the excavation(s). On the basis of previous site investigations and in accordance with Unocal policy, costs for the excavation and disposal of 200 yards of petroleum hydrocarbon containing soil has been included in this CBP RAP in the event that contaminated soil in the UST area is encountered. CLASS V INJECTION WELLS GeoResearch has already implemented a plan for dealing with Class V injection wells (seepage pits and dry wells) for Unocal Sites in Southern California. The same treatment is proposed for this site if it is determined that petroleum hydrocarbons have entered the seepage pit via the septic tank. This may have occurred if material from the clarifier was directed to the septic tank. This will be determined by observing the path of the clarifier drain line during site demolition. If it is determined that discharge from the clarifier drain line has entered the septic tank, then the contents of the septic tank will be sampled in order to~ determine the procedures necessary to remove and dispose of the septic tank and contents. Also, in order to determine the required handling of soils from the leach field, a sample will be analyzed in accordance with Class V injection well requirements. Leach Field Area The following steps are anticipated: 1. The clarifier drain line will be traced in order to determine if it drains entirely within the leach field or continues on to the septic tank. UNO3655.RAP2 051392F Mr. Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 5 The following step would be implemented if it is determined that the clarifier drain line is attached to the septic tank and clarfier waste has been discharged to the septic tank and seepage ~pit. iA. The septic tank and seepage pit will be opened and sampled in order to determine if petroleum hydrocarbons from the service box were directed to these features. One sample of any sludge phase and one sample of any liquid phase will be ~collected from each structure and analyzed for the following: - TCLP Volatile organics (EPA Method 8240 or Methods 8010/20) - CAM Metals - TPH-G (using EPA Method 5030 for preparation) and/or TPH-D (using pentane extraction for preparation) - TRPH (EPA Method 418.1) - Ignitablity 2. The analytical results will be submitted to the KCEHD for review. The results of the above analysis will be used to determine if the closure of the septic tank and seepage pit must be handled in accordance with closure requirements for Class V injection wells. The following step would be implemented if it is determined (via step 1 or 2) that petroleum hydrocarbons have not entered the septic tank and seepage pit: 2A. The septic tank and associated seepage pit Will be opened and any liquids will be pumped out by a licensed sewer contractor. Solids from the septic tank will be stockpiled on site to be disposed of with soils slated for disposal at a Class II landfill. The septic tank will be removed for disposal along with other concrete debris by the demolition contractor. Kern County Building and Safety Department regulations require that all backfill material be compacted if building is to occur on top of these features. UNO3655.RAP2 051392F Mr. Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 6 3. If Class V injection well standards are found to be applicable, then the interior surfaces of the septic tank will be pressure washed before its demolition and disposal as unclassified debris. Solids removed from the septic tank will be stockpiled in a Class I soil stockpile. Stained soil and any solids from the seepage pit will be removed and placed in the ~Class I soil stockpile. For the purpose of cost estimation, it is assumed that the services of a bucket auger drill rig will be required for the removal of solids and underlying soil from 'the seepage pit and that twenty cubic yards of material will be removed. Visibly clean soil will be sampled upon the removal of stained soil and analyzed for the full suite of characterization analyses listed in 2A above. Additional excavation may be required if analytical results show analytes remaining in excess of established maximum contaminent levels or advisory levels. Following~the removal of the septic tank and seepage pit (and any visibly stained soil), GeoResearch will observe the backfill of these features with clean inert material when confirmation sample results have been reviewed and approved by the KCEHD. 4. A GeoResearch geologist will direct the excavation of soils in the leach field area which are visibly stained in a manner similar to the soil sample collected in this area which contained petroleum hydrocarbons. Clean overburden soils will be stockpiled separately from stained soils. An on-site mobile laboratory provided by GEOTEST of Long Beach, California will be utilized to perform analyses of soil samples for TRPH (US EPA Method 418.1) and TPH-D to confirm the removal of soils containing TRPH and TPH-D. Confirmation samples will be collected from the base and each sidewall of the excavation and analyzed for TRPH and/or TPH-D (estimate: 10 samples each). Confirmation soil samples will also be analyzed for TPH-G/BTEX (estimate: 2 samples). 5. Soil samples will be collected from the stockpile of the excavated hydrocarbon soils from the leach field. One composite sample will be prepared from these samples and analyzed for the suite of analyses specified in iA above. 6. A test for the biotoxicity of the composite sample will also be performed (96-hour LCd^), if required by the disposal facility for waste characterization purposes. In the event that any other required waste characterization analyses on the stockpile samples indicate the presence of other potentially hazardous constituents in the soil, appropriate confirmation soil samples will also be analyzed for these parameters (costs UNO3655.RAP2 051392F Mr. Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 7 for such analyses are not estimated herein). 7. The appropriate disposal method for leach field soils will be determined from the above analyses. Costs for handling these soils as non-RCRA hazardous waste are included in the estimate provided below. Note that costs will be lower if soils are eventually handled as non-hazardous. It is also assumed for the cost estimate provided below that the excavated soils will be transported to the Laidlaw Environmental facility near. Buttonwillow, CA by Dillard Trucking. The final determination of the disposal facility utilized will be based on the analytical results obtained. 8. Based on the results of the labOratory analyses, GeoResearch will coordinate the disposal of removed liquid, sludge, and soil as hazardous or non-hazardous by a Unocal- approved waste hauler. For the purpose of cost estimation, it is assumed that approximately 20 cubic yards (25 tons) of soil have been affected by the releases through the seepage pit. In addition, 150 yards (195 tons) of soil from the leach field area are anticipated. The actual amount of affected soil will probably vary from the above stated figure and will have to be determined during excavation activities. Affected soil will be transported by Dillard Trucking to the Chemical Waste Management facility in Kettleman Hills for disposal as non- RCRA hazardous waste if analytical results so indicate. Service Bay Soils Soils in the vicinity of the two vehicle hoists in the garage will be observed and sampled during demolition activities. If the soil is stained, then GeoResearch will observe the excavation of the stained soil (by Unocal contractor) before sampling. Confirmation samples will be collected from the base and sidewalls of the excavation(s) (estimate 10 samples) and a composite sample collected from the stockpile (estimate 1 sample). These samples will be analyzed for TRPH. ESTIMATED TIME FRAMES Activities associated with service bay soils and excavation of soils which may be comtaminated from beneath the dispenser island which involve the Unocal contractor should not require more than two days time in excess of that which would be required for the closure of an ordinary clean station. Three to four weeks should be .allowed following station demolition for the completion of characterization analyses and the determination by the KCEHD of the UNO3655.RAP2 051392F Mr. Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 8 requirements for the removal of stockpiled soils. One week should 'then be sufficient for the scheduling 'and completion of the excavation of any contaminated soils associated with the septic systems. An additional two weeks ~should be allowed for the characterization of these stockpiled soils and two weeks to complete soil removal and backfill of all excavations. In summary, site work should be completed within 8-10 weeks of the start of .demolition. ESTIMATED COSTS The estimated cost of our services for the implementation of this plan is $52,712.50. This can be broken down into $3,000.00 for the CBP RAP, $12,500.00 for the clean closure portion, $37,212.50 for the remedial action portion, including closure of the leach field, septic tank and seepage pit. Estimated costs for transportation and disposal of contaminated soil to proper disposal sites is $52,275.00. The cost for the implementation of this plan will be lower if petroleum hydrocarbons were not directed to the ~septic tank and/or if UST soils are not contaminated with petroleum hydrocarbons. These costs do not include any work completed by Unocal contractors. Additional costs may be incurred due to the finding of greater than estimated volumes of contaminated soil or the classification of such soils as hazardous, further laboratory analytical requirements, or unforseen regulatory requirements. This proposed scope of work may be modified in the field based on our observations or the requirements of the KCEHD inspector. Unocal will be promptly notified of any significant deviations from this scope of work. Thank you for this opportunity to be of service to Unocal If you have any questions please contact us at (209) 264-0444. Sincerely, ~ames N. Rohrer Warren W. Gross Senior Staff Geologist Senior Geologist attachment: Proposed Budget UN03655 .RAP2 051392F ENVIRONMEN *Address · . ~ ..... ~ GEOSERUICE$ 05x15x92 14:82 P 01 GeoResearch 1713 'Fula~e, Su,te 113 Fresno. Calitorn,~ 9;J7~ 1 (20~) 264-0444 Number i£ pages includ£ng cove~ pago.._._~ ~ you have any questions :e~a~8±n~ this ~ansaction, please call (209) 264-0444. COMMENTS: GeoResearch 1 7 1 3 I ulare, Sulle 1 1 3 (2()~.11 2~4-(1444 (800) 523-4786 ~ay ~3~ [992 Mr. Robert A. Boust Unocal Refining and Marketing Division Unocal Corporation 2000 Crow Canyon Place, Suite 400 San Ramon, California 94583 RE: California Business Plan Remedial Action Plan, Unocal Service Station No. 3655, Pierce Road, Bakersfield, california, GeoResearch Project No. 92080 Dear Mr. Boust: In response to your request, this California Business Plan Remedial Action Plan (CBP RAP) for the above-referenced site has been prepared for your use. We understand that this document is intended for internal use by Unocal for the purposes of estimating the potential cost of required remedial actions on the property, the time frames for the required site work, and the impact of remedial activities upon site improvements and site operation. Since remedial activities will take place concurrently with station demolition and the removal of USTs and appurtenances, the scope and cost of our typical clean clo~ure activitie~ are included in thi~ document. The approximate extent of petroleum hydrocarbons in our investigation have been determined and do not constitute a large volume of soil. We anticipate that the Kern County Environmental Health Department (KCEHD) will permit 'excavation of all soils identified as containing petroleum hydrocarbons at the time of UST removal. The KCEHD requires that notification be given of the intent to excavate impacted soils at the time the permit for UST removal is drawn. The site assessment report prepared for the station indicated th"e presence of up to 50 cubic yards of soil containing TPH-G and BTEX in the vicinity of the southwest end of the west pump i~land. In addition, approximately 150 cubic yards of soil containing TPH- D/TRPH are estimated to be present in the' septic tank and leach field area. Costs have also been included .in this RAP for handling u~o3655. RAP~ 0,51:~92F ~ .~ GEOSERUICES 05xlSx92 14: P.02 GeoResearch May 13, 1992 .-t A. Boust -~fining and Marketing Division )rporation ~ Canyon Place, Suite 400 ~., California 94583 -fornia Business Plan~ Remedial Action Plan, Unocal · ice Station No. 3655, Pierce Road, Bakersfield, fornia, GeoResearch Project No. 92080 Bous~: ~e to your request, this California Business Plan Remedial '.an (CBP RAP) for the above-referenced site has been for your use. We understand that this document is ~or internal use by Unocal for the purposes of estimating ~ial cost of required remedial actions on the ~roperty, frames for the required site work, and the impact of activities upon. site improvements and site operation. ~dial activities will take place concurrently with station ~ and the removal of USTs and appurtenances, the scope and ir typical clean closure activities are included in this ~ximate extent of petroleum hydrocarbons in our :ion have been determined and do not constitute a large soil. We anticipate that the Kern County Environmental ~artment (KCEHD) will permit excavation of all soils as containing petroleum hydrocarbons at the time of UST The KC~HD recs/ires that notification be given of the excavate impacted soils at the time the permit for UST drawn. ~sessment report prepared for the station indicated the f up to 50 cubic yards of soil containing TPH-G and BTEX inity of the southwest end of the west pump island. In approximately 150 cubic yards of soil containing 'TPH- estimated to be present in the septic tank and leach '~'%andling Mr. Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 2 UD to 200 cubic yards .of soil comt~in(ng Q~nl(n, Aw ~eh.~ petroleum hydrocarbons upon removal of the USTs. SUch soils, while not identified in our site assessment, may be encountered immediately adjacent to the USTs and/or appurtenances. p~OPOSED 8C0~E OF WORK' Upon receipt of notification of the schedule for site demolition, GeoResearch will provide the KCEHD with written notification of Unocal's intent to, in conjunction with UST removal, perform excavation and confirmation soil sampling in association with limited volumes of soil containing .petroleum hydrocarbons. The KCEHD will also be notified of Unocal's intent to close a leach field and, possibly, a seepage pit (which may have received petroleum hydrocarbons from auto service operations), in accordance with the provisions of applicable laws and regulations. USTs AND.~PPURTENANCES (clean clo~ure activit~esJ The following steps are anticipated:. 1. GeoResearch personnel will observe the phases of station demolition which expose site soils. The location of any observed ~oil staining or other evidence of significant soil contamination will be noted. GeoResearch personnel will disturbed during demolition. 2. Appropriate ~oil sample locations for compliance with KCEHD requirements for UST removal soil sampling will be established and marked as soils in each area are exposed. ~. %'~e con~lon o~ t~e usTs wi£1 ~e observed upon removal. Photographs will be taken of any noteworthy areas of the USTs, such as holes or corrosion-pitted areas. 4. Soil samples will be collected beneath the tanks, piping, and dispensers in accordance with KCEHD protocol: At depths of two and six feet beneath each end of the fuel tanks, the center of the waste oil tank, and at 20-foot intervals along piping and dispensers. It is estimated that 26 such samples will be collected. UNO3655.RAP~. 051'~9~F Mr. Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 3 5. Soil samples .from beneath the fuel tanks, piping and dispensers will be analyzed for TPH-G/BTEX.~ Up to four additional soil samples will be collected from the sidewalls of each UST excavation in order to provide Unocal with additional assurance of the nature of soils left in. place. The majority of these analyses will be completed by the on- site mobile laboratory in order to delineate any areas where further soil excavation is warranted. 6. Soil samples from beneath the waste oil tank will be analyzed for TRPH, TPH-G/BTEX, and halogenated organics (EPA Method 8010). In the event that stained soils are observed or these tests detect hydrocarbons, additional analyses may be performed on soil samples from the waste oil tank pit. No .costs are provided in this CBP RAP for any analyse~ beyond .those specified above. 7. It is anticipated that a KCEHD inspector will observe all excavation and soil sampling associated with the USTs. Upon the removal of all soils identified as containing petroleum hydrocarbons and the concurrence of the inspector, all excavations should be backfilled and compacted to a minimum of 90% of the maximum density. Unocal should consider asking the contractor to provide certification of the compaction of the fill. GeoResearch will collect one sample of any imported fill soils and analyze the soil for TRPH, TPH-G/BTEX and total lead. The utilization of the imported soils will not be delayed pending the results of the analyses. SOUTHWEST END OF T~E WEST PU~P ISLAND ~ The following steps are anticipated: 1. It is estimated that up to 50 cubic yards of soils containing petroleum hydrocarbons will be removed by the Unocal contractor with a backhoe or excavator. Such soils will be stockpiled onsite. This volume of soil has not been considered part of the 200 cubic yards discussed in the following contingency section. 2. Upon removal of all visibly contaminated soil, confirmation samples will be collected from.the base and sidewalls of the excavation and analyzed for TPH-G/BTEX by an on-site mobile laboratory in order to confirm the removal of all petroleum hydrocarbon-containing soil.' If confirmatory samples indicate the presence of TPH-G, then additional excavation work will be conducted until confirmatory samples Mr. Robez~t Boust CBP RAP for SS# 3655 May 13, 1992 Page 4 indicate that all contaminated soil has been removed. the excavated hydrocarbon soils. One composite sample will be prepared from these samples by GEOTEST and analyzed for TPH- G/BTEX (CA DOHS/US EPA Method 8020) ~ontin~ency For Contaminated Soils l._USTs/Piping In the event that petroleum hydrocarbons are detected in the UST excavation and stockpiling of such soils. Representative samples of the stockpiled soils would be collected and analyzed for the appropriate constituents. Confirmation samples would also be collected and analyzed from native soils at the limits of the excavation(s). On the basis of previous site investigations and in accordance with Unocal policy, costs for the excavation and disposal of 200 yards of petroleum hydrocarbon containing soil has been included in this CBP RAP in the event that contaminated soil in the UST area is encountered. 9LASS V INJECTION WELLS GeoResearch has already implemented a plan for dealing with class v injection wells (seepage pits and dry wells) for Unocal sites in Southern California. The.same treatment is proposed for this site if it is determined that petroleum hydrocarbons have entered the seepage pit via the septic tank. This may have occurred if material from the clarifier was directed to the septic tank. This will be determined by observing the path of the clarifier drain line during site demolition. If it is determined that discharge from the clarifier drain line has entered the septic tank, then the contents of the septic tank will be ~ampled in order to determine the procedures necessary to remove and dispose of the septic tank and contents. Also, in order to determine the required handling of soils from the leach field, a sample will be analyzed in accordance with Class V injection well requirements. LeaQh Field Area The following steps are anticipated: 1. The clarifier drain line will be traced in order to determine if it drains entirely within the leach field or continues on to the septic tank. · ' Mr, Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 5 The following step would be implemented if it is determined that the clarifier drain line is attached to the septic tank and clarfier waste has been discharged to the septic tank and seepage pit. lA. The septic tank and seepage pit will be opened and sampled in order to determine if petroleum hydrocarbons from the service box were directed to these features. One sample of any sludge phase and one sample of any liquid phase will be collected from each structure and analyzed for the following: - TCLP Volatile organics (EPA Method 8240 9~ Methods 8010/20) - CAM Metals - TPH-G (using EPA Method 5030 for preparation) and/or TPH-D (using pen=she extraction for preparation) - TRPH (EPA Method 418.1) - Ignitablity 2. The analytical results will be submitted to the KCEHD for review. The results of the above analysis will be used to determine if the closure of the septic tank and seepage pit must be handled in accordance with closure requirements for Class V injection wells. The following step would be implemented if it is determined (via step 1 or 2) that petroleum hydrocarbons have not entered the septic tank and seepage pit: 2A. The septic tank and associated seepage pit will be opened and any liquids will be pumped out by a licensed sewer contractor. Solids from the septic tank will be stockpiled on site to be disposed of with soils slated for disposal at a Class I! landfill. The septic tank will be removed for disposal along with other concrete debris by the demolition contractor. Kern County Building and Safety Department regulations require that all backfill material be compacted if building is to occur on top of these features. UN03655. R.~2 051392F Mr. Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 6 3. If Class V injection well standards are found to be applicable, then the interior surfaces of the septic tank will be pressure washed before its demolition and .disposal as unclassified debris. Solids removed from the septic tank will be stockpiled in a Class I soil stockpile. Stained soil and any solids from the seepage pit will be removed and placed in the Class I soil stockpile. For the purpose of cost estimation, it is assumed that the services of a bucket auger drill rig will be required for the removal of solids and underlying soil from the seepage pit and that twenty cubic yards of material will be removed. Visibly clean soil will be sampled upon the removal of stained soil and analyzed for the full suite of characterization analyses listed in 2A above. Additional excavation may be required if analytical results .show analytes remaining in excess of established maximum contaminent levels or advisory levels. Following the removal of the septiu tank and .~pape pit (and any visibly retained soil), GeoResearch will observe the backfill of these features with clean inert material when confirmation sample results have been reviewed and approved by the KCEHD. 4. A GeoResearch geologist will direct the excavation of soils in the leach field area which are visibly stained in a contained petroleum hydrocarbons. Clean overburden soils will be stockpiled separately from stained soils. An on-site mobile laboratory provided by GEOTEST of Long Beach, California will be utilized to perform analyses of soil samples for TRPH (US EPA Method 418.1) and TPH-D to confirm the removal of soils containing TRPH and TPH-D. Confirmation samples will be collected from the base and each sidewall of the excavation and analyzed for TRPH and/or TPH-D (estimate: 10 samples each). Confirmation. soil samples will also be analyzed for TPH-G/BTEX (estimate: 2 samples). 5. Soil samples' will be collected from the stockpile of the excavated hydrocarbon soils from the leach field. One composite sample will be prepared from these samples and analyzed for the suite of analyses specified in iA above. 6. A test for the biotoxicity of the composite sample will also be performed (96-hour LC~), if required by the disposal facility for waste characterization purposes. In the event that any other required waste characterization analyses on the stockpile samples indicate the presence of other potentially hazardous constituents in the soil, appropriate confirmation soil samples will also be analyzed for these parameters (costs ..... Mr. Robert Boust CBP RAP for SS# 3655 May 13, '1992 Page 7 for such analyses are not estimated herein). 7. The appropriate disposal method for leach field soils will be determined from the above analyses. Costs for handling these soils as non-RCRA hazardous waste are included in the estimate provided below. Note that costs will be lower if soils are eventually handled as non-hazardous. It is also assumed for the cost estimate provided below that the excavated soils will be transported to the Laidlaw Environmental facility near Buttonwillow, CA by Dillard Trucking. The final determination of the disposal facility utilized will be based on the analytical results obtained. 8. Based on the results of the laboratory analyses, 'GeoResearch will coordinate the disposal of removed liq~/id, sludge, and soil as hazardous' or non-hazardous by a Unocal- approved waste hauler. For the purpose of cost estimation, it is assumed that approximately 20 cubic yards (25 tons) of soil have been affected by the releases through the seepage pit. In addition, 150 yards (195 tons) of soil from the leach field area are anticipated. The actual amount of affected soil will probably vary from the above stated figure and will have %0 be determined during exCaVation activities. Affected soil will be transported by Dillard Trucking to the Chemical Waste Management facility in Kettleman Hills for disposal as non- RCRA hazardous waste if analytical results so indicate. soils in the' vicinity of the two vehicle hoists in the garage will be observed and sampled during demolition activities. If the soil is s:ained, then GeoResearch will observe the excavation of the stained soil (by Unocal contractor) before sampling. Confirmation samples will be collected from the base and sidewalls of the collected from the stockpile (estimate i sample). These samples will be analyzed for TRPH. ~STIMATED... TIME FRAMES Activities associated with service bay soils and excavation of soils which may be comtaminated from beneath the dispenser island which involvQ th~ Unocal ~_ontractor ~hould no~. r~q~.l~.r~ mnr~ ~.h~n two days time in excess of that which would be required for the closure of an ordinary clean station. Three to four weeks should be allowed following station demolition for the completion of 'characterization analyses and the determination by the KCEHD of the Mr. Robert Boust CBP RAP for SS# 3655 May 13, 1992 Page 8 requirements for the removal of stockpiled soils. One week should then be sufficient for the scheduling and completion of the excavation of any contaminated soils associated with the septic systems. An additional two weeks should be allowed for the characterization of these stockpiled soils and two weeks to complete ~oil removal and backfill of all excavations. In summary, site work should be completed within 8-10 weeks of the start of demolition. ~.STIMATgP cOSTS The estimated cost of our services for the implementation of this plan is $52,712.$0. This can be broken down into $3,000.00 for the CBP RAP, $12,500.00 for the clean closure portion, $37,212.50 for the remedial action portion, including closure of the leach field, septic tank and seepage .pit. Estimated costs for transportation and disposal of contaminated soil to proper disposal sites is $52,275.00. The cost for the implementation of this plan will be lower if petroleum hydrocarbons were not directed to the septic tank and/or if UST soils are not contaminated with petroleum hydrocarbons. These costs do not include any work completed by Unocal contractors. Additional costs may be incurred due to the finding of greater than estimated volumes of contaminated soil or the classification of such soils as hazardous, further laboratory analytical requirements, or unforseen regulatory requirements. This proposed scope of work may be modified in the field based on our observations or the requirements of the KCEHD inspector. Unocal will be promptly notified of any significant deviations from this scope of work. Thank you for ~his opportunity ~0 be of service to Unocal,. If you have any questions please contact us at (209) 264-0444. Sincerely, .games N. Rohrer Warren W. Gross senior Staff Geologist Senior Geologist attachment: Proposed Budget U~O3655.RAP:; 051~9~F : GeoResearch 1713 Tkllare, ,'Suite 113 Fresno, California 93721 (800) 52,3-4786 May 13, 1992 Mr. Terry L. Gray Hazardous Materials Inspector Kern County Environmental Health Department 2700 "M" Street, Suite 300 Bakersfield, CA 93301 RE: Unocal Service Station No. 3655, 2600 Pierce Road, Bakersfield, California. GeoResearch Project No. 92080 Dear Mr. Gray: The following California Business Plan Remedial Action Plan is being sent to you at the request of Mr. Robert Boust of Unocal Corporation. Included in this RAP is the scope of work which is to be completed .for the Underground Injection Control Program. GeoResearch plans to complete the initial sampling (Pg. 5, Item iA) at the time of UST removal, May 14, 1992. This fax copy will be followed by a hard copy which will be mailed today. If you have any questions, please contact me at (209) 264-0444. Sincerely, Warren W. GroSs Senior Geologist enclosure cc: Robert Boust, Unocal C~eoRes~:.,ar,':h is a division (3f (.][::OSERVtC£S, a C,lifornia corporation LEACH FIELD AND SEEPAGE PIT CLOSURE REPORT UNOCAL SERVICE STATION NO. 3655 2600 Pierce Road Bakersfield, California~ prepared for UNOCAL REFINING AND MARKETING DIVISION Unocal Corporation 2000 Crow Canyon Place, #400 San Ramon, California 94583 prepared by GeoResearch, a Division of GEOSERVICES, a California Corporation, 1713 Tulare Street Fresno, California 93721 (209) 264-0444 January 5, 1993 92080-02 U23655. L FR 010593 F4 ~ TABLE OF CONTENTS STATEMENT OF LIMITATIONS AND PROFESSIONAL CERTIFICATION . . . i EXECUTIVE SUMMARY . . . ~ .............. ' . . . ii 1.0 INTRODUCTION ...................... 1 2.0 BACKGROUND ....................... 1 3.0 SITE GEOLOGY/HYDROGEOLOGY ............... 2 4.0 OBSERVATIONS/PROCEDURES ................ 2 4.1 SEPTIC TANK AND SEEPAGE PIT SAMPLING .... '. . . 2 4.2 SEEPAGE PIT DESTRUCTION .............. 3 4.3 LEACH FIELD EXCAVATION AND SEPTIC TANK REMOVAL . . 3 4.4 BACKGROUND SAMPLING ................ 3 5.0 LABORATORY ANALYTICAL RESULTS ............. 4 5.1 SEPTIC TANK AND SEEPAGE PIT ............ 4 5.2 LEACH FIELD AND BACKGROUND SAMPLES ........ 4 6.0 STOCKPILED SOIL SAMPLING, ANALYSIS, AND DISPOSAL .... 5 7.0 BACKFILL AND COMPACTION ................ 5' 8.0 REGULATORY AGENCY ACTION ................ 6 9.0 SUMMARY AND CONCLUSIONS . . .. ............. 6 REFERENCES ................ ' ......... 7 TABLES . · TABLE 1: RESULTS OF LABORATORY ANALYTICAL SAMPLES COLLECTED FROM THE SEEPAGE PIT AND SEPTIC TANK UNOCAL SERVICE STATION NO. 3655, 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA, MAY 14, 1992 TABLE 2: RESULTS OF TRPH ANALYSES OF SOIL SAMPLES COLLECTED FROM LEACH FIELD EXCAVATION FROM UNOCAL SERVICE STATION NO. 3655, 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA, JULY 1- 2, 1992 TABLE 3: RESULTS OF VOLATILE ORGANICS ANALYSES OF SOIL SAMPLES FROM LEACH FIELD EXCAVATION AND ASSOCIATED STOCKKPILE FROM UNOCAL SERVICE STATION NO. 3655, 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA, JULY 1-2, 1992 U23655. LF~OlO593F4 ' ' TABLE OF CONTENTS (CONTINUED) TABLE 4: RESULTS OF METALS ANALYSES OF SOIL SAMPLES COLLECTED FROM LEACH FIELD EXCAVATION AND BACKGROUND TRENCH FROM UNOCAL SERVICE STATION NO. 3655, 2600 PIERCE ROAD, BAKERSFIELD,' CALIFORNIA, JULY 1-2, 1992 TABLE 5: RESULTS OF TRPH ANALYSES OF STOCKPILED SOIL SAMPLES COLLECTED FROM UNOCAL SERVICE STATION NO. 3655, 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA, JULY. 2 AND SEPTEMBER 2, 1992 TABLE 6: RESULTS OF PROFILE ANALYSES OF SOIL FROM LEACH FIELD STOCKPILE FROM UNOCAL SERVICE STATION NO. 3655 2600' PIERCE ROAD, BAKERSFIELD, CALIFORNIA, JULY 1-2, 1992 FIGURES FIGURE 1: SITE LOCATION FIGURE 2: SAMPLE LOCATIONS APPENDICES APPENDIX A: REGULATORY AGENCY CORRESPONDENCE APPENDIX B: GEORESEARCH SOIL SAMPLING PROCEDURES APPENDIX C: SUMMARIES OF LABORATORY ANALYTICAL METHODS APPENDIX D: LABORATORY ANALYTICAL REPORTS APPENDIX E: SOIL DISPOSAL FORMS U23655.[FROlO593F4 STATEMENT OF LIMITATIONS AND PROFESSIONAL CERTIFICATION Information provided in this report for GeoResearch Project Number 92080-02 is intended exclusively for Unocal Corporate Environmental Remediation and Technology for the evaluation of the occurrence of petroleum hydrocarbons and other constituents as it pertains to the subject site at the time the data were collected. The professional services have been performed in accordance with practices generally accepted by professional geologists, hydrologists, engineers, and environmental specialists. No other warranty, expressed or implied, is made. As with all subsurface investigations, there is no guarantee that the work conducted will identify any or all sources or locations of contamination. This report is issued with the understanding that Unocal Refining and Marketing Division is responsible for ensuring that the information contained in this report is brought to the attention of the appropriate regulatory agency. The enclosed report has been reviewed by an engineering geologist certified in the state of California and whose signature and certification number appear below. Steve Curra Warren W. Gross, C.E.G. No. 1528 Project Geologist Associate Geologist U23655. L F~O10593F4 EXECUTIVE SUMMARY GeoResearch supervised the destruction of a seepage pit, the removal of a septic tank and leach line, and the excavation of visibly stained soil from the leach field at former Unocal service station #3655. Analyses performed by other ~laboratories are identified when cited in this report. The work was authorized by Mr. Robert Boust of Unocal Corporate Environmental Remediation and Technology on May 13, 1992 and was conducted in accordance with the EPA's Underground Injection Control (UIC) Program as administered by the County.of Kern Environmental Health Department (KCEHD). The purpose of our activities was to complete all work required fOr closure of the underground injection facilities at the site. The objectives included proper destruction of a seepage pit, removal of soils containing significant concentrations of petroleum .hydrocarbons resulting from the discharge of wastes from the services bay clarifier, document the condition of remaining soils with respect to petroleum hydrocarbons and other tested analytes, and prepare a written report demonstrating the suitability of the leach field and the seepage pit areas for closure. Soil was removed from the leach field until analytical results indicated ~that soils containing petroleum hydrocarbons had been removed. No metals concentrations were identified in the soils beneath the leach field which substantially exceeded background metals concentrations. Approximately 300 cubic yards of leach field soils and 21 yards of waste oil contaminated soil from the previous tank closure phase of work at the site were profiled and disposed as non-hazardous at a Class II disposal facility. The leach field, seepage pit, and waste-oil UST excavations were backfilled and compacted. Notice of closure of the septic system at the site was provided on September 18, 1992 by the KCEHD. The closure letter stated that the "environmental concerns have been abated, and no further action is required" U23655. [ FRO 10593 F4 ii 1.0. INTRODUCTION GeoResearch supervised the destruction of a seepage pit, the removal of a septic tank and leach line, and the excavation of visibly stained soil from the leach field at former Unocal service station #3655 (Figure 1). Analyses performed by other laboratories are identified when cited in this report. The work was authorized by Mr. Robert Boust of Unocal Corporate Environmental Remediation and Technology on May 13, 1992 and was conducted in accordance with the EPA's Underground Injection Control (UIC) Program as administered by the County of Kern Environmental Health Department (KCEHD) . The purpose of our activities was to complete all work required for closure of the underground injection facilities at the site. The objectives included proper destruction of a seepage pit, removal of soils containing significant concentrations of petroleum hydrocarbons resulting from the discharge of wastes from the services bay clarifier, document the condition of remaining soils with respect to petroleum hydrocarbons and other tested analytes, and prepare a written report demonstrating the suitability of the leach field and the seepage pit areas for closure (Figure 2). The leach field excavatiOn and seepage pit destruction were conducted by Kroeker Environmental Services of Fresno, California. Sample analysis was completed primarily by GEOTEST, a California DOHS certified analytical laboratory. Soil excavated from the leach field and seepage pit excavations was transported by Dillard Trucking as non-hazardous to Laidlaw's Class II facility in Buttonwillow, California. The excavations were backfilled and compacted by Kern Environmental Services (KES) of Bakersfield, California. 2.0 BACKGROUND A Phase I Environmental Site Assessment by PHR Environmental Consultants, Inc., dated October 30, 1991 indicated that construction of the station was completed on. January 8, 1954. A 1954 general arrangement plan provided in the report identified the leach field at the rear of the station. The seepage pit was not identified on this, or any later plans included in the Phase I report. The City of Bakersfield Public Works Department was contacted to determine whether or not the station was ever connected to the municipal sewer system. No records of a sewer connection were on file. GeoResearch conducted an environmental site assessment of the property in January of 1992. Soil samples taken from borings placed in the leach line and septic tank area were found to contain U23655. L FRO 10593 F4 1 total recoverable petroleum hydrocarbons (TRPH) concentrations of 370 mg/kg and 180 mg/kg respectively. The service station was demolished and USTs and appurtenances removed during May, 1992. Only minor concentrations of petroleum hydrocarbons were found to be present beneath the gasoline USTs and dispenser islands. All soils were remediated to the satisfaction of the Bakersfield Fire Department. The observations and soil~ sample analysis results from this phase is presented in the GeoResearch UST Closure Report for this site (GeoResearch, 1992). 3.0 SITE GEOLOGY/HYDROGEOLOGY Soils beneath.the site consist of alluvial material, derived from the Sierra Nevada to the east and the Tehachapi mountains to the south. This heterogeneous section of Pleistocene and Pliocene alluvium is on the order of 5,000 feet thick in the Bakersfield area and is'composed of unconsolidated sand, gravel, silt, clayey sand and clay. Pliocene-Pleistocene continental clastic deposits overlie the Tertiary basement. The Tertiary basement, composed of granitic and metamorphic rocks, underlies the clastic section at a depth on the order of 15,000 feet below ground surface (Hackel, 1960). According to Kern County Water Agency, Water Supply Report 1990, District 41, depth to ground water beneath the project site is approximately 45 feet. 4.0 OBSERVATIONS/PROCEDURES 4.1 SEPTIC TANK AND SEEPAGE PIT SAMPLING At the time of our investigation, the septic tank contained water and a layer of sediment consisting of medium to coarse sand. No liquid was observed in the seepage pit. No soil staining was observed in soils hand augered from the bottom of the pit. During station demolition activities, the septic tank liquid and sediments and seepage pit sediments were sampled in accordance with the EPA's Class V Injection Well Program administered by KCEHD. The water sample was collected in a new disposable polyethylene bailer and transferred into the appropriate laboratory-supplied containers. The sediment and soil samples were collected in brass tubes driven by a slide hammer apparatus. Mr. Terry Gray of the KCEHD observed the sampling. The seepage pit soil sample was collected from a six-inch hand auger boring at the bottom of the pit. These samples were analyzed for TRPH by EPA Method 418.1, TPH-D by CAL/DOHS Methods, ignitability by EPA Method 1010, Toxicity Characteristic Leaching Procedure (TCLP) Volatile organics by EPA Method 8240 and California Assessment Manual Metals (CAM Metals) by EPA Method 6010 and 7471 (Mercury). U23655. LFR010593F4 2 4.2 SEEPAGE PIT DESTRUCTION On July 2, 1992, the top of the seepage Pit was exposed with a backhoe. The top of the 3.5' diameter seepage pit was encountered 2' below ground surface (bgs) and the pit extended to a depth of 9' bgs. The seepage pit was composed of concrete with one inch diameter circular openings along its sides. No soil discoloration or odors were noted in or around the pit when the top of the seepage pit was exposed. Following the receipt of analytical - results, a 1/2 sack cement/sand slurry was used to fill in the seepage pit. All construction material and soil above the pit from land surface to 5'.bgs was removed and was disposed as construction debris by Kern Environmental Services (KES). 4.3 LEACH FIELD EXCAVATION AND SEPTIC TANK REMOVAL On July 1-2, 1992 a 1,200-gallon septic tank and 50 linear feet of 4" diameter vitreous~ clay leach line were removed. Prior to removal, the septic tank was pumped out by Knights Pumping Service, a licensed sewer contractor from Bakersfield, California. Approximately 150 cubic yards of visibly clean overburden soil was removed from above the leach line and septic tank. The leach line was at a depth of approximately 3 feet bgs'. Visibly stained soil beneath the leach line was excavated to approximately 6' bgs and stockpiled separately. Confirmation samples were obtained from the visibly clean soils beneath the stained soils and analyzed by an on-site mobile laboratory for TRPH. Removal of contaminated soil in the leach field excavation continued until laboratory analyses revealed that confirmation samples of soil from the excavation's limits were below detection limits (50 mg/kg). Two of the soil samples from the bottom of the leach field excavation were analyzed for volatile organic compounds by U.S. EPA Method 8240. Four soil samples, obtained from the bottom of the excavation at approximately 20-foot intervals at depths of 2 to 6 feet below the bottom of the leach line, were analyzed for arsenic,, barium, chromium, copper, lead, nickel, thallium, and zinc by EPA Method 6010. The metals analyses were required by. Mr. Terry Gray of the KCEHD based on the analytical results of liquid and sediment obtained fr6m both the septic tank and seepage pit. 4.4 BACKGROUND SAMPLING Soil samples were obtained from a small trench excavated in the southeast part of the site in an area unaffected by the leach field. The purpose of these samples was to help determine if the metals concentrations present in the soil samples obtained from the leach field excavation were consistent with the naturally occurring concentrations expected in the background samples. ,J23655. lF~010593F4 3 5.0 LABORATORY ANALYTICAL RESULTS Soil samples collected from the leach field excavation were analyzed on-site for TRPH by GEOTEST. Samples tested for TPH-D, ignitability,.volatile organics and metals were analyzed by GEOTEST in Long Beach, California. 5.1 SEPTIC TANK AND SEEPAGE PIT One soil sample was obtained from the seepage pit and analyzed for TRPH by EPA Method 418.1, TPH-D by CAL/DOHS Methods, ignitability by EPA Method 1010, TCLP, Volatile organics by EPA Method 8240 and CAM Metals. The TRPH concentration was 28 mg/kg.. Except for metals (discussed below) no other analytes were detected. Table 1 presents the analytical results for the septic tank and seepage pit samples. Analysis of the water and sediment samples from the septic tank revealed that there were no detectable concentrations of TCLP volatile organics or TPH-D, nor did they ignite at temperatures up to 200 degrees. The TRPH concentration of the water sample was 0.6 mg/L. The TRPH concentration of the septic tank sediment sample was 510 mg/kg. The metals concentrations in the water sample were below the Maximum Contamination Levels (MCL's) established for drinking water. The total concentrations of seven metals (arsenic, barium, chromium, copper, lead, nickel, and zinc) in both sediment samples exceeded ten times the MCL's in drinking water established for those metals. For this reason, Mr. Terry Gray of KCEHD required that confirmation samples obtained following excavation of soils from the leach field be analyzed for these metals. However, the CAM Metal concentrations in both sediment samples were well below the Title 22 standards which would designate them as a hazardous waste. Copies of correspondence with Mr. Gray are included in Appendix A. 5.2 LEACH FIELD AND BACKGROUND SAMPLES Five of the 22 leach field samples analyzed were found to contain TRPH ranging from 16 mg/kg to 470 mg/kg; the TRPH was not detected in the other samples (Table 2) . At each location where TRPH concentrations were detected, additional excavation was conducted until confirmation samples revealed that TRPH concentrations were not detected (Table 2 and Figure 2). Minimal additional excavation beyond the removal of visibly stained soil was required to remove soils with detectable TRPH concentrations. Two of the confirmation samples from the bottom of the excavation (LF2-7 and LF1W-6) were U23655. k F~O10593F4 4 also analyzed for volatile organics by 'EPA Method 8240 (Table 3). Volatile organics were not detected in these samples. Four samples froTM the bottom of the excavation (LF1-5, LF2-7, LF3-6 and LF4-6)were analyzed for arsenic, barium, chromium, copper, lead, nickel, zinc and thallium (Table 4). Analytical results of the samples from the leach field excavation and the background trench (BG-5 AND BG-10) were similar. The leach field samples were generally found to be slightly lower in metals concentrations than the background samples. 6.0 STOCKPILED SOIL SAMPLING, ANALYSIS, AND DISPOSAL Approximately 150 cubic yards of visibly-stained soil from the leach field excavation was stockpiled along the southeastern side of the leach field excavation. Four samples (SPA, SPB, SPC, and SPD) were obtained from the stockpile. For soil disposal profiling purposes, these samples were composited and analyzed for TRPH by EPA Method 418.1 (Table 5) and volatile organics by EPA Method 8240 (Table 3), total sulfide by EPA Method 376.2, total cyanide by EPA Method 9010, pH, semi-volatile compounds by EPA Method 8270 (Table 6), and CAM metals (Table 7) by GEOTEST in Long Beach, California. The composite sample was also tested for specific gravity by Petr oleum Testing Service, Inc. in Santa Fe Springs, California, and density and total organic halogens by Associated Laboratories in Orange, California. Approximately 150 cubic yards of visibly clean overburden soil from above the leach field was stockpiled along the northwest side of the leach field excavation. On October 2 1992, six stockpile samples (SPE-1, SPE-2, SPE-3, SPE-4, SPE-5, SPE-6) were obtained from this stockpile and analyzed for TRPH (Table 5) by GEOTEST. TRPH concentrations in these samples ranged from 220 to 1,200 mg/kg. Analytical results of composite samples obtained from both the visibly stained leach field soils and visibly clean overburden soils were forwarded to Dillard Trucking of Byron, California. Both the visibly stained and visibly clean soil stockpiles as well as the 21 yards of waste oil affected soil were transported as "non-hazardous" by Dillard to Laidlaw's Class II disposal facility in Buttonwillow, California. The non-hazardous waste data forms sent for the 393 tons (approximately 270 cubic yards) of disposed soil is included in Appendix E. 7.0 BACKFILL AND COMPACTION KES was contracted by GeoResearch to baCkfill and compact the leach field, seepage pit, background sampling trench, and the waste-oil U23655. LFRO10593F4 5 UST excavations. Approximately 400 cubic yards of clean soiI was imported by KES to backfill the excavations. Compaction certification was to be completed by Krazan· and Associates of Bakersfield, California. The compaction certification report is pending and will be provided to Unocal upon receipt. Approximately 60 yards of concrete from the septic tank and soil containing brick and concrete debris which was generated during the station demolition and was not suitable as backfill was disposed by KES at a local Class III Landfill. 8.0 REGULATORY AGENCY ACTION On August 14,.1992, a letter presenting the analytical results of soil samples obtained from the. leach field excavation and background sampling trench, as presented in this report, was submitted to Mr. Terry Gray of the KCEHD. In a September 18, 1992 letter to Unocal, Mr. Gray stated that the contaminated soil was excavated and it was KCEHD's position that the environmental concerns have been abated and no further action is required. A copy of this closure letter is included in Appendix A. 9.0 SUMMARY AND CONCLUSIONS GeoResearch directed the destruction of a septic tank, leach field and seepage pit at the site in accordance with the County of Kern Environmental Health Services Department (KCEHD) Underground Injection Control (UIC) Program. Destruction of the septic system included pumping out the septic tank, removal of the septic tank and associated leach line, backfilling and abandonment of. the seepage pit with cement slurry, excavation and disposal of contaminated leach field soils, and backfill and compaction of the leach field excavation. Soil was removed from the leach field until analytical results indicated that soils containing petroleum hydrocarbons had been removed. No metals concentrations were identified in the soils beneath the leach field which substantially exceeded background metals concentrations. Approximately 300 cubic yards of leach field soils and 21 yards of waste oil contaminated soil from the previous tank closure phase of work at the site were profiled and disposed as non-hazardous at a Class II disposal facility. The leach field, seepage pit, and waste-oil UST excavations were backfilled and compacted. Notice of closure of the septic system at the site was provided on September 18, 1992 by the KCEHD. The closure letter stated that the "environmental concerns have been abated, and no further action is required" U23655.[FR010593F4 REFERENCES GeoResearch, August 1992, Tank Closure Report for Unocal Service Station No. 3655, 2600 Pierce Road, Bakersfieid, California. Hackel, Otto, 1960, Summary of The Geology of The Great Valley, Geology of Northern California, California Division of Mines and Geology Bulletin 190, Chapter 5, pages 217-238. U23655.LFROlO593F4 7 TABLE 1 ANALYTICAL RESULTS OF-SAMPLES COLLECTED FROM THE SEEPAGE PIT AND SEPTIC TANK UNOCAL SERVICE STATION NO. 3655, 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA MAY 14, 1992 Method: EPA 418.1 CAL/DOHS EPA 8240 EPA 7471 Sample TRPH TPH-D VOLATILE MERCURY ID (mg/kg) or (mg/kg) or ORGANICS BY COLD (mg/L) (mg/L) (TCLP VAPOR EXTRACT) rog/kg or ~G/L SEPTIC TANK 510 ND ND 0.060 (SEDI- MENT) SEPTIC TANK 0.6 ND ND ND (WATER) SEEPAGE PIT (SEDI- 28 ND ND 0.024 MENT) LDL 10 mg/kg or 10 mg/kg or 0.5 - 200 0.010 0.5 mg/L 0.5 mg/L mg/kg mg/kg or 0.10 ~g/L For NOTES see last page of Tables TABLE 1 (CONTINUED) COMPOUND SAMPLE ID DETECTION SEPTIC TANK SEPTIC TANK SEEPAGE PIT LIMIT (WATER) (SEDIMENT) (SEDIMENT) mg/L or mg/L mg/kg mg/kg mg/kg Antimony ND ND ND 0.018/0.91 Arsenic ND 12 9.3 0.054/7.5 Barium 0.10 120 75 0.001/0.02 Beryllium ND 0.13 0.14 .0004/0.06 Cadmium ND ND ND 0.002/0.40 Chromium 0.026 22 9.5 0.006/0.12 Cobalt ND 5.7 2.5 0.003/0.32 Copper ND 21 14 0.025/0.29 Lead ND 41 ND 0.016/2.5 Molybdenum ND 4.8 4.0 0.02/0.75 Nickel 0.022 8.3 4.5 0.004/0.20 Selenium ND ND ND 0.003/4.0 Silver ND ND ND 0.004/0.18 Thallium ND 19 ND 0.023/13 Vanadium 0.014 19 15 0.003/0.17 Zinc 0.21 62 66 0.021/0.11 For NOTES see last page of Tables .U23655. [ FRO 10593 F4 TABLE 2 RESULTS OF TRPH ANALYSES OF SOIL .SAMPLES COLLECTED FROM LEACH FIELD EXCAVATION UNOCAL SERVICE STATION NO. 3655, 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA JULY 1-2, 1992 Method: EPA 418.1 Sample Depth TRPH Number FT (BGS) · (mg/kg) LF1-5 5 ND LF1W-5 5 25 LF 1 WA- 6 6 ND LF1E-5 5 17 LF1EA-6 6 ND LF2-6.0 6 470 LF2 -7 7 ND LF2E-6 · 6 ND LF2W-6 6 ND LF3 -6 6 ND LF3E-6 6 ND LF3W-6 6 ND LF4 -6 6 ND LF4W-6 6 ND LF4E-6 6 ND LF5-7 7 ND LF5W-5 5 ND LF5E-5 5 40 LF7-3 3 16 LFS-6 6 ND LF9-5 5 ND LDL I 10 For NOTES see last page of Tables U23655.LFR010593F4 TABLE 3 RESULTS OF VOLATILE ORGANICS ANALYSES OF SOIL SAMPLES COLLECTED FROM LEACH FIELD EXCAVATION AND ASSOCIATED STOCKPILE UNOCAL SERVICE STATION NO. 3655 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA JULY 1-2, 1992 COMPOUNDS SAMPLE ID DETECTION LF1WA-6 LF2-7 COMPOSITE LIMIT -- (SPA, (~g/kg) SPB, SPC, SPD) Chloromethane ND ND ND 5.0 Bromomethane ND ND ND 5.0 Vinyl Chloride ND ND ND 5.0 Chloroethane ND ND ND 5.0 Trichlorofluoromet ND ND ND 5.0 hane 1,1-Dichloroethene ND ND ND 5.0 Methylene Chloride ND ND ND 10 1,1-Dichloroethane ND ND ND 5.0 trans-l,2- ND ND ND 5.0 Dichloroethene Chloroform ND ND ND 5.0 1,2-Dichloroethane ND ND ND 5.0 1,1,1- ND ND ND 5.0 Trichloroethane Carbon ND ND ND 5.0 .Tetrachloride Bromodichloro- ND ND ND 5.0 methane 1,~2- ND ND ND 5.0 Dichloropropane cis-l,3- ND ND ND 5.0 Dichloropropene Trichlorethene ND ND ND 5.0 (continued on next page) U23655.LFRO10593F4 TABLE 3 (continued) COMPOUNDS SAMPLE ID DETECTION LF1WA-6 LF2-7 COMPOSITE LIMIT (SPA, (~g/kg) SPB, SPC, SPD) Dibromocholor- methane ND ND ND 5.0 1,1,2- Trichloroethane ND ND ND 5.0 Benzene ND ND ND 5.0 trans-1, 3 dichloropropene ND ND ND 5.0 Bromoform ND ND ND 5.0 Tetracholorethane ND ND ND 5.0 1,1,2,2- Tetrachloroethane ND ND ND 5.0 Toluene ND ND ND 5.0' Chlorobenzene ND ND ND 5.0 Ethylbenzene ND ND ND 5.0 m,p-Xylenes ND ND ND 5.0 o-Xylenes ND ND ND 5.0 1,3-Dichlorobenzene ND ND ND 5.0 1,4-Dichlorobenzene ND. ND ND 5.0 1,2-Dichlorobenzene ND ND ND 5.0 For NOTES see last page of Tables U23655. t FRO 10593 F4 TABLE 4 RESULTS OF METALS ANALYSES OF SOIL SAMPLES COLLECTED FROM LEACHFIELD EXCAVATION AND BACKGROUND TRENCH FROM UNOCAL SERVICE STATION NO. 3655, 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA, JULY 1-2, 1992 -- METHOD:TITLE BACKGROUND TRENCH DETECTION 22 METALS SAMPLE ID LIMIT EPA 6010 ......... rog/kg ........ (rog/kg) BG-5 BG-10 COMPOUND: Arsenic 3.6 ND 3.0 Barium 58 44 0.02 Chromium 5.9 3.9 0.12 Copper 35 3.8 0.29 Lead 15 ND 1.0 Nickel 2.9 1.8 0.20 Thallium 18 15 2.5 Zinc 65 22 0.11 METHOD:TITLE LEACHFIELD EXCAVATION DETECTION 22 METALS SAMPLE ID LIMIT EPA 6010 -- mg/kg (mg/kg) LF1-5 LF2-7 LF3-6 LF4-6 Arsenic ND ND ND ND 3.0 Barium 42 35 46 41 .0.02 Chromium 4.1 3.0 3.4 3.6 0.12 Copper 4.0 3.4 13 4.0 0.29 Lead ND ND 7.8 1.2 1.0 Nickel 1.8 14 2.1 1.7 0.20 Thallium 16 1.6 12 13 2.5 Zinc 29 28 21 29 0.11 For NOTES See last page of Tables U23655.LFR010593F4 TABLE 5 RESULTS OF TRPH ANALYSES OF STOCKPILED SOIL SAMPLES COLLECTED FROM UNOCAL SERVICE STATION NO. 3655, 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA JULY 2 AND SEPTEMBER 2, 1992 Method: EPA 418.1 Sample STOCKPILE TRPH Number (rog/kg) COMPOSITE OF: SPA, VISIBLY STAINED SPB, SPC, AND SPD. PILE FROM LEACH 410 FIELD SPE-1 NON-STAINED PILE FROM LEACH FIELD 560 SPE-2 NON-STAINED PILE FROM LEACH FIELD 370 SPE-3 NON-STAINED PILE FROM LEACH FIELD 1,200 SPE-4 NON-STAINED PILE FROM LEACH FIELD 230 SPE-5 NON-STAINED PILE FROM LEACH FIELD 310 SPE-5 NON-STAINED PILE FROM LEACH FIELD 220 LDL 10 For NOTES see last page of Tables U23655. L FRO 10593 F4 TABLE 6 RESULTS OF PROFILE ANALYSIS OF SOIL AND LEACH FIELD STOCKPILE UNOCAL SERVICE STATION NO. 3655 2600 PIERCE ROAD, BAKERSFIELD, CALIFORNIA JULY 1-2, 1992 ANALYTICAL TEST RESULT DETECTION LIMIT (~g/kg) SPECIFIC GRAVITY 2.671 at 20° na DENSITY 95.4 lb/ft3 na TOTAL ORGANIC HALOGENS < 2.5 mg/kg na SULFIDE BY EPA 0.005 METHOD 376.2 ND mg/kg CYANIDE BY EPA 0.25 METHOD 9010 ND mg/kg LABORATORY pH 7.2 na NOTES: EPA = U.S. Environmental Protection Agency TRPH = total recoverable petroleum hydrocarbons FT = feet BGS = below ground surface mg/kg= milligrams per kilogram BG = background sample ~g/kg= micrograms per kilogram LDL = laboratory detection limit ND = not detected (below laboratory detection limit) mg/L = milligrams per liter ~g/L = micrograms per liter TPH-D= total petroleum hydrocarbons as diesel CAL/DOHS= California Department of Health Services U23655. L F;~OlO593F4 0 ~e~+*.:' ~ . o ~~~~ ~ ' ~, ~ Oil Sump ' U '.' ~a - * . .~.~, Tank. '- ~ - ~ - I II ' '~ ' "''"' ,':~ "~ ' '..~ ~ F L Do ~..~. ~;,~.-~ ~... s~s ,.... ' "o~' ~.* o -I ~ · ~ . ~ ~ ~f "~-~~~~~~~-. - - o. ~ - .:__~',~ >: ,._ = I I 0 1/2 1 MILE ' ' Geo ese rch SCA~ '1 Sl~ LOCA~ON REFEEENC~ UNOCAL S~ STA~ON 3655 U.S.G.S. OI~A~ QUADRANt. 1954, 2600 PI~ ROAD B~SR~, CAUFORNIA PHOTORE~S~ 1968 PR~ECT NUMBER: 92080' - - ~R~ NO: TOPO DRA~ BY: S.NA~ APPENDIX A REGULATORY AGENCY CORRESPONDENCE U23655.LFROlO593F4 GeoResearch 1713 Tulare, Suite 113 Fresno, California 93721 (209) 264-0444 .. (800) 523-4786 Fax: (209) 264-9800 June 18', 1992 Mr. Terry L. Gray Hazardous Materials Inspector County of Kern Environmental Health Services Department 2700 "M" Street, Suite 300 Bakersfield, CA 93301 RE: Unocal Service Station No. 3655, 2600 Pierce Road, Bakersfield, California, GeoResearch P~oject No. 92080. Dear Mr. Gray: In the recent subsurface investigation conducted, by GeoResearch at the above-referenced site, please recall that the clarifier drain line from the service bay area was uncovered and found to be connected to the leach line which was traced to the septic tank. A seepage pit.was fed by a sewer line which led from the septic tank..Subsequently, the dry septic tank and seepage pit sediments were sampled in accordance with the Class V Injection Well Program administered by your department. According to laboratory analyses (see enclosure), sediments in the septic tank and seepage pit did not contain detectable concentra- tions of TCLP volatile organics or TPH-Diesel, nor did they ignite at temperatures up to 200°. For each of the sediment samples, CAM metal concentrations were well below the Title 22 standards which would designate them as a hazardous waste. TRPH concentrations for the septic tank and seepage pit sediments were 510 mg/kg and 28 mg/kg, respectively. Analysis of the water samples obtained'from the septic tank.also revealed that there were no detectable concentrations of TCLP volatile organics or TPH-D. The sample was not ignitable and detectable concentrations of CAM metals were below MCL Standards as presented in the "Drinking Water Regulations and Health Advisories" (April, 1992). The TRPH concentration was just above the detection limit at"0.6 mg/L. Class V injection well standards do not appear to be applicable for the seepage pit. We propose that it merely be filled with a half ~55SEP.LET~1~2F4 Geor~esearch is a a,v,s~on of GEOSERVICES. a California corporation " Mr. Terry L. Gray Unocal Service Station No. 3655 June 18, 1992 Page 2 ' sack cement/sand slurry to 5 feet below land surface (bls) and abandoned in-place. All construction.materials from Land surface to 5 feet bls would be removed and disposed as construction debris. As outlined in the Remedial Action Plan dated May 13, 1992 submit- ted to the KCEHD, the septic tank will be pumped out by a licensed sewer contractor. Solids~from the septic tank will be stockpiled. on-site to be disposed of at a class II landfill along with soil from the waste.oil tank excavation. The septic tank itself will be removed for disposal as construction debris. Visually stained soils in the vicinity of the leach field will be excavated and stockpiled on site as directed by a GeoResearch geologist. Confirmation soil samples will be collected in the excavation pit bottom and sidewalls to be analyzed for TRPH by an on-site mobile laboratorY Two soil samples from the bottom of the excavation will be further analyzed for volatile organic compounds by U.S. EPA Method 8240, in accordance with the Class V Injection Well Program requirements. Four soil samples will be collected from the stockpiled soil for laboratory compositing and determina- tion of TRPH and volatile organics (EPA 8240) concentrations. The results of these analyses will be submitted to your department for determination of the required means of disposal. Clean fill will be imperted and compacted to restore the site to the original grade. We look forward to receiving your authorization to proceed so that we may schedule site work as soon as possible. We will provide you with a minimum of 48 hours notice of the scheduled time of the start of additional site work. If you should need .additional information or have questions don't hesitate calling me at (209) 264-0444. Sincerely, Warren W. Gross Associate Geologist enclosure: Laborator%; Reports cc: Mr. Robert Boust, Unocal Corporation 3~55SEP. LET061 ~92FZ, June 30, 1992 Mr. Terry L. Gray Hazardous Materials Inspector County of Kern Environmental Health Services Department 2700 "M" Street, Suite 300 Bakersfield, CA 93301 RE: Unocal Service Station No. 3655, 2600 Pierce Road, Bakersfield, California. GeoResearch Project No. 92080- 02. Dear Mr. Gray: The purpose of this letter .is to confirm the additional sampling and analysis requirements that we discussed yesterday for the septic system abandonment at the above-referenced site. It is our understanding that, in addition to the sampling and analysis scheme detailed in' our letter dated June 18, 1992, Kern County is requiring additional samples be obtained at depths of 2 and 6 feet below the leach line at 20 foot intervals. These samples are to be analyzed for total concentration of the following metals: arsenic, barium, chromium, copper, lead, nickel and zinc. It is our understanding that these metals were chosen because their total concentrations in soil or sediment samples from the septic tank or seepage pit were ten times greater than the Maximum Contamination Levels established for drinking water. Given that the metals concentrations in the liquid sample from the septic tank were below MCL's for these metals, this sampling requirement seems overly conservative. However, we understand that you have encountered problematic metals concentrations at other sites in the vicinity. Based on our understanding your requirements, we propose to modify the sampling locations as follows. 1) For those sample locations where visibly stained soil does not extend beyond two feet below the leach line, the two and six foot samples will be obtained. 2) If visibly stained soil extends beyond two feet below the leach line, after the stained soil is excavated and 3655ADD L. URK 1063092 F Mr..Terry L. Gray Additional Requirements for Unocal No. 3655 June 30, 1992 Page 2 mobile laboratory TRPH results confirm removal of soils with over 50ppm TRPH, soil samples will be obtained for metals analysis at two and six feet below the limits of the stained soil. 3) As you suggested, additional samples may be collected below the six foot samples. These samples may be analyzed after review of the results from the analysis of shallower samples. The depths at which these deeper samples will be obtained will be dictated by the conditions encountered at the time of the septic system removal. 4) In an effort to help determine if the metals concentrations that are present in the samples are consistent with naturally occurring concentrations, background samples will be obtained and analyzed for appropriate metals. Initially, it is anticipated that only the shallower samples from each of the sample locations will be analyzed. The results of these analyses will be used to determine which, if any, additional samples should be analyzed or which additional analytes should be tested. We are presently scheduled to start work tomorrow morning at 9:00. If you should need additional information or have any questions, please call me or Warren Gross at (209) 264-0444. Sincerely, Steve Curra Project Geologist 3655ADD L. UR K 1063092 F GeoResearch 1713 Tulare. Suite 113 Fresno. California 93721 (209) 264-0444 {800) 523-4786 -Fax: (209) 264-9800 August 14, 1992 _ Mr. Terry Gray Hazardous Materials Inspector County of Kern, Environmental Health Services Department 2700 "M" Street, Suite 300 Bakersfield, CA 93301 RE: Analytical Results, Septic System SOil Sampling, Unocal Service Station No. 3655, 2600 Pierce Road, Bakersfield, California. GeoResearch Project No. 92080-02. Dear Mr. Gray: The purpose of this letter, report is to present the analytical results of soils sampled during the leach field and septic tank removal and seepage pit destruction at the above-referenced site (Figure 1) and to present, for your approval, recommendations for closure of these facilities. On July 1-2, 1992, the seepage pit was destroyed, the septic tank and leach line were removed, visibly stained soil was excavated from the leach field, and confirmation soil samples were obtained from the excavation and analyzed for selected organics and metals by GEOTEST, a California DOHS certified analytical laboratory. Prior to excavation of the leach field, the septic tank was pumped out by a licensed sewer contractor. The septic tank was removed by the backhoe, destroyed, and will be disposed as demolition debris. The~ seepage pit was excavated to remove the top of the .pit ~to a depth of approximately 5 feet bgs. The pit was then backfilled with a 1-sack sand/cement slurry. The source of discharge to the leach field consisted of approximately 55 feet of four-inch diameter clay pipe laying approximately three feet bgs. Visibly clean soils overlying the leach field were stockpiled separately from soil that was visibly stained from the within the leach field. The leach field excavation and sample locations are shown on the attached site map. Per your instructions, selected samples from the excavation were 'analyzed for volatile organics (~EPA Method 8240) , total recoverable petroleum hydrocarbons (TRPH - EPA Method 418.1) and the following metals: arsenic, barium, chromium, copper,~lead, nickel, thallium U3655.LFE2 0£1292F Ge.;¢e~.ea,cn ~s a C:'.':s cn of GEOSERVICES. a Cai~forn~a c,gr2, ora~ton Mr. Terry Gray Analytical Results from Soil Sampling Unocal Service Station No. 3655 August 14, 1992 Page 2 and zinc. The results of these analyses are presented in the attached tables. FiVe of the 22 samples analyzed were foUnd to contain detected concentrations of TRPH ranging from 16 mg/kg to 470 mg/kg. At each location where TRPH concentrations were detected, additional excavation was conducted until confirmation samples revealed that TRPH concentrations were not detected. Two of the samples (LF2-7 and LF1W-6) from the bottom of the. excavation were also analyzed for volatile organics by EPA Method 8240. Volatile organics were not detected in these samples. ~Four samples, obtained from the bottom of the excavation at approximately 20-foot intervals at depths ranging from approximately 2 to 6 feet below the bottom of the leach line, were analyzed for metals. In each of these samples, the concentrations of the metals were slightly lower than the concentrations found in the background samples. The metals concentrations present in the samples obtained from the leach field excavation appear to be consistent with concentrations naturally occurring in soil as demonstrated by the background samples, and not a result of a discharge of these materials from the site septic system. Therefore, we request, on Unocal's behalf, closure of these former Class V injection well facilities. With your approval, we will backfill the excavations and dispose of the septic tank and leach field debris and soil at an appropriate landfill. The visibly-stained soil from within the leach field will be profiled for disposal at an appropriate Class II landfill and any demolition debris will be disposed at a local Class III landfill. If you have any questions please call either of the undersigned at (209) 264-0444. Sincerely, Curralogis~ Warren W. Gross Associate Geologist enclosures: Tables 1 - 3 Figure 1 cc: Mr. Robert Boust, Unoc~l Corporation US655.LFE2 0~1292F RANDALL L. ABBOTT STEVE McCa! I ~', REHS, DIRECTOR DIRECTOR A~r Po~,t~ C~ ~ DASD PRICE · ~ J. RODDY, ~O ~ J~, ~, D~CTOR ENVIRONMENTAL HEALTH SERVICES DEPARTMENT Septe~nber 18, 1_992 RECEIVED GEO RESEAI ,H Unocal Co~oration 0OT ' 9 I992 Unocal Refining and Marketing Division Mr. Robert A. Boust PROJECT # 2000 Crow Canyon Place, Suite 400 ~~.- C3 San Ramon, CA 94583 ~ --tn SUBJECT: Closure of Class V Shallow Injection Well, located at Unocal Station #3655, 2600 Pierce Road, Bakersfield, CA Dear Mr. Boust: The August 14,-1992, OeoRcscarch report of the soil sample results of the soil samples retr/eved July 1, 1992, at the location noted above have been received by this office. In accordance w/th the closure guidelines for Class V Shallow Inject/on Wells the levels detected presented a threat to the environment. The contaminated soil was excavated and transported to an appropr/ate dksposal site. It is this Departments position that the env/ronmental concerns have been abated, and no further action is required. If you have any questions, please call me at, (805) 861-3636, extension 582. Sincerely, Terry L. Gray Hazardous Materials Inspector Hazardous Materials Management Program TLG:ch cc: U.S. Environmental Protection Agency (EPA) ATTN: Martin Zeleznik Rexona/Water Quality. Control Board - Fresno ATTN~ Dale Essay/ GeoResearch ATTN: Steve Curra gra~. uno3655.1¢t ~- 2700 "M" sTREET, SUITE 300 BAKERSFIELD, CAI IFORNIA 93301, (805) 861-3636 APPENDIX B GEORESEARCH SOIL SAMPLING PROCEDURES U23655.E£ROlO593F4 GEORESEARCH SOIL SAMPLING PROCEDURES FOR SHALLOW EXCAVATIONS The following procedures are utilized for the collection of soil samples: i. Soil samples are obtained under the direction of a prOfessional engineer, geologist, or authorized representative of a State-approved laboratory. Sample numbers and locations are approved by the city/county inspector, if present on-site. ii. All soil samples are taken from the backhoe bucket, unless the excavation has been safely graded or shored. Soil samples will be collected from the interior portions of the excavator bucket, away from the bucket's edges and teeth, to avoid potential cross-contamination. Approximately one inch of soil is removed from the surface area where the sample is to be collected and a clean, 6-inch long, 1-inch minimum diameter brass ring will be pounded into the soil using a wooden mallet, or equivalent tool. No headspace will be present in the ring once the sample is collected. iii. In shallow excavations, soil samples may be taken by driving a brass tube directly into the excavation bottom or sidewall. iv. Soil samples are collected in thin-walled stainless steel brass cylinders 6" long by 1.5" or 2" diameter. Cylinders are pounded into the soil with a wooden mallet or equivalent method when not using an auger or drilling equipment. v. Each end of the cylinder is covered with aluminum foil, capped with polyethylene lids, taped, and labeled. vi. Samples are transported in an ice chest containing blue ice or equivalent and kept at approximately 4 degrees centigrade until delivery to a California Department of Health Services-approved analytical laboratory. vii. Chain-of-custody records produced in accordance with U.S. E.P.A. requirements are kept to track the possession of a sample from the time it is taken in the field until the time it is analyzed. U23655 . l FRO 10593 F4 APPENDIX C SUMMARIES OF LABORATORY ANALYTICAL METHODS: SOIL SAMPLES U23655.EFROlO593F4 SUMMARIES OF LABORATORY ANALYTICAL METHODS:~ SOIL SAMPLES The following briefly describes laboratory analyses performed on soil samples in accordance with the specified EPA or California Department of~Health Services methods. EPA Method 418.1: Total Recoverable Petroleum Hydrocarbons The strict EPA method is for water samples only. For soil samples the soil is extracted with Freon. The Freon is treated with silica gel to remove biological acids. The IR absorbance of the extract is then measured to determine the total recoverable petroleum hydrocarbon (TRPH) content. EPA Method 6010: ICP-AES Metals Up to 23 metals can be analyzed for simultaneously by Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES). The soil sample is digested with strong acid and the digest aspirated into the ICP. The metals are detected by monitoring the atomic emission lines of the various elements. EPA Method 8010: Volatile Haloqenated Orqanics Volatile halogenated organics are determined by purge and trap followed by gas chromatography/Hall detector (GC/Hall). A small amount of sample (about 1 gram) is placed in a purge vessel and 5 ml water added. The sample is purged for a specific time and the volatiles absorbed on a trap. After purging the trap is heated and the volatiles swept into the GC. The analytes are separated using a capill~ary column and the halogenated compounds detected using a Hall detector. EPA Method 8020: Volatile Aromatic Organics Volatile aromatics are determined by purge and trap followed by gas chromatography/photoionization detector (GC/PID). Normally only Benzene, Toluene,.Ethylbenzene and total Xylenes are'analyzed with this method. A small amount of sample (about 1 gram) is placed in a purge vessel and 5 ml water added. The sample is purged for a specific time and the volatiles 'absorbed on a trap. After purging the trap is heated and the volatiles swept into the GC. The analytes are separated using a capillary column and detected using a photoionization detector. EPA Method 8080: Pesticides/PCBs Extraction of pesticides or poly-chlorinated biphenols (PCBs) from a soil matrix is performed by use of the Sonication Extract Method (EPA method 3550). The extractant is injected into a GC glass-packed column and detected on a ECD. U23655.£FROlO593F4 Total Petroleum HydrOcarbons - Diesel Total petroleum hydrocarbons as Diesel (TPH-D) is determined by extracting a soil sample with pentane. The extract is analyzed by gas chromatography with a flame ionization detector (GC/FID). The TPH-D is determined~as the total amount of compounds detected in the range where diesel elutes from the capillary column. EPA Method 1010: Flashpoint This method determined the ignitability of liquids with a Pensky- Marten Closed Cup tester. The liquid is heated at a slow, constant rate with continual stirring. A flame is directed into the cup at regular intervals. The flashpoint is the temperature at which the flame ignites the vapor above the sample liquid. California Code of Regulations: Metals California Administrative Code: Title 22 - Metals Soil samples are acid-digested to separate metals from the soil matrix. The digestate solution is analyzed on an atomic absorption (AA) spectrophotometer in conjunction with either a graphite furnace (GFAA) .or a flame (FLAA) as the energy source. In FLAA determinations, the flame provides energy for dissociating the sample solution to atomic state for absorption measurement on the AA. GFAA allows gradual heating before AA measurements. U23655. [ FR 010593 F4 APPENDIX D LABORATORY ANALYTICAL REPORTS U23655.LFROlO593F4 GEOTEST ~o= office Box 90911, Long Beach, California 90809-0911 (310)498,9515 (800)624-5744 An Environmental Monitoring and Testing Service LABORATORY REPORT GEORESEARCH DATE SAMPLED : O7/O1/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O7/O1/92 FRESNO, CA 93721 DATE ANALYZED: O7/O1/92 SAMPLE MATRIX: SOIL ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 92400-17 ANALYSES: 418.1 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT BY INFRARED SPECTROMETRY EPA METHOD 418.1 SAMPLE ID RESULTS DETECTION LIMIT (mg/kg) (mg/kg) WO1-9' ND 10 W02-6' ND 10 WO3-9' ND 10 WO4-6' ND 10 LF1-5' ND 10 LF1W-5' 25 10 LF1E-5' 17 10 LF2-6.O 470 10 LF2E-6 ND 10 LF2W-6 ND 10 LF3E-6 ND 10 LF3W-6 ND 10 LF3-6. ND 10 LF4-6 ND 10 ND - Not detected below indicated limit of detection.~~~ Analyst: DR Reviewed and Approved: _ '~ Report date: ]/~/~ ~ ~i's report pertains 0n-l-y to %he sampIeS inve~-~-~gated and '"~'6'e'S not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, Califomia.90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT GEORESEARCH DATE SAMPLED : O7/01/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O7/01/92 FRESNO, CA 93721 DATE ANALYZED: O7/O1/92 SAMPLE MATRIX: SOIL ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 92400-17 ANALYSES: 418.1 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT BY INFRARED SPECTROMETRY EPA METHOD' 418.1 SAMPLE ID RESULTS DETECTION LIMIT (mg/kg) (mg/kg) LF4W-6 ND 10 LF4E-6 ND 10 LF2-7 ND 10 LF1EA-6 ND 10 LF1WA-6 ND 10 ND - Not detected below indicated limit of detection. ~/~/~~ Analyst: DR Reviewed and Approved: Report date / ' '~/3/~ % T--h~s- report pertains on'ly to the samples' inves'~igated and '"d6es not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. ~m m~ m m m m __m 'GEOTEST Post Office Box 90911, LongBeach, Califomia90809-0911 (3'0) 498-95'5 (800) 624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF TOTAL RECOVERABLE PETROLEUM HYDROCARBONS EPA METHOD 418.1 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 92400-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: 07/01/92 SAMPLE MATRIX: SOIL ELAP certification #1655 Analyses method: 418.1 CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) METHOD BLANK ND 10 ACCURACY % LABORATORY. CONTROL STANDARD 104 70 - 130% % RECOVERY % MATRIX SPIKE 104 70 - 130% % ACCEPTABLE RANGE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 100 70 - 130% m m m · m GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, Califomia 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF TOTAL RECOVERABLE PETROLEUM HYDROCARBONS EPA METHOD 418.1 GEOTEST CLIENT NAHE: GEORESEARCH GEOTEST PROJECT NO: 924OO-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: O7/01/92 SAMPLE MATRIX: SOIL ELAP certification #1655 Analyses method: 418.1 CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) METHOD BLANK ND 10 ACCURACY % LABORATORY CONTROL STANDARD 101 70 - 130% RECOVERY % MATRIX SPIKE 98 70 - 130% % ACCEPTABLE RANGE REPRODUCIBILITY % HATRIX SPIKE DUPLICATE 1OO 70 - 130% Checked and Approved: ~/~/ Report Date: . GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT .. GBORBSEARCH DATE SAMPLED : 07/01192 1713 TULARE STREET, suITE 113 DATE RECEIVED: O7/O1/92 FRESNO, CA 93721 DATE ANALYZED: O7/13/92 SAMPLE MATRIX: SOIL ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 924OO-17 ANALYSES: 8240 SAMPLE ID: LFIWA-6 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ MASS SPECTROMETRY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT (ug/kg) (ug/kg) Chloromethane ND 5.0 Bromomethane ND 5.0 Vinyl chloride ND 5.0 Chloroethane ND 5.0 Trichlorofluoromethane ND 5.0 1,1-Dichloroethene ND 5.0 Methylene chloride ND 25 1,1-Dichloroethane ND 5.0 trans-l,2-Dichloroethene ND 5.0 Chloroform .ND 5.0 1,2-Dichloroethane ND 5.0 1,1,1-Trichloroethane ND 5.0 Carbon tetrachloride ND 5.0 Bromodichloromethane ND 5.0 1,2-Dichloropropane ND 5.0 ND - Not detected below indicated limit of detection. ~///~./~/.~/ Analyst: FH, PT Reviewed and Approved: Report date: This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST ~o~ office Box 90911, Long Beach. California 90809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring · ami Testing Service ~ABORATORY REPORT 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O7/O1/92 FRESNO, CA 93721 DATE ANALYZED: 07/13/92 SAMPLE MATRIX: SOIL ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 924OO-17 ANALYSES: 8240 SAMPLE ID: LF1WA-6 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA PAGE 2 OF 2 H~SS SP~CTROHE?RY BY EPA HETHOD 8246 COMPOUNDS RESULTS DETECTION LIMIT (ug/kg) (ug/kg) cis-l,3-Dichloropropene ND 5.0 Trichloroethene ND 5.0 Dibromochloromethane ND 5.0 1,1,2-Trichloroethane ND 5.0 Benzene ND 5.0 trans-l,3-dichloropropene ND 5.0 Bromoform ND '5.0 Tetrachloroethene ND 5.0 1,1,2,2-Tetrachloroethane ND 5.0 Toluene ND 5.0 Chlorobenzene ND 5.0 Ethylbenzene ND 5.0 m,p-Xylenes ND 5.0 o-Xylene ND 5.0 1,~3-Dichlorobenzene ND 5.0 1,4-Dichlorobenzene ND 5.0 102-Dichlorobenzene ND 5.0 ND - Not detected below indicated limit of detection. ~~~/~ Analyst: FH, PT Reviewed and Approved: Report date: / 3//~/~ Z- This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. __m m m i __mm GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF VOLATILE ORGANICS BY GC/HS EPA METHOD 8240 GBOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 924OO-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED:07/13/92 'SAMPLE MATRIX:SOIL COMPOUND METHOD BLANK 'DETECTION LIMIT CONCENTRATION (ug/kg) (ug/kg) Chloromethane ND 5.0 Bromomethane ND 5.0 Vinyl chloride ND 5.0 Chloroethane ND 5.0 Trlchlorofluoromethane ND 5.0 1,1-Dichloroethene ND 5.0 Methylene chloride 3.2 25 1,l-Dichloroethane ND 5.0 trans-l,2-Dichloroethene ND 5.0 Chloroform ND 5.0 1,2-Dichloroethane ND 5.0 l,l,l-Trichloroethane ND 5.0 Carbon tetrachloride ND 5.0 Bromodichloromethane ND 5.0 1,2-Dichloropropane ND 5.0 Checked and Approved: Report Date: GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF VOLATILE 'ORGANICS BY GC/MS EPA'METHOD 8240 GEOTEST CLIENT NAMEs GEORESEARCH GEOTEST PROJECT NO: 92400-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED:O7/13/92 'SAMPLE MATRIX~SOIL COMPOUND METHOD BLANK DETECTION LIMIT CONCENTRATION (ug/kg) (ug/kg) cis-l,3-Dichloropropene 0.22 5.0 Trichloroethene ND 5.0 Dibromochloromethane ND 5.0 1,1,2-Trichloroethane ND 5.0 Benzene ND 5.0 trans-l,3-dichloro'propene ND 5.0 Bromoform ND 5.0 Tetrachloroethene ND 5.0 1,1,2,2-Tetrachloroethane ND 5.0 Toluene O.11 5.0 Chlorobenzene ND 5.0 Ethylbenzene ND 5.0 m,p-X¥1enes ND 5.0 o-Xylene ND 5.0. l.,3-Dichlorobenzene ND 5.0 1,4-Dichlorobenzene ND 5.0 1,2-Dichlorobenzene ND 5.0 Checked and Approve~//~,~~/ Report Date.. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, Califomia 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY - ANALYSIS OF VOLATILE ORGANICS BY GC/MS EPA METHOD 8240 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 92400-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED:07/13/92 .SAMPLE MATRIX:SOIL ~'~P'ouNu LC'S % ACCURACY Chloromethane 106 Vinyl chloride 95 1,1-Dichloroethene 88 1,1-Dichloroethane 70 Chloroform 71 1,2-Dichloropropane 77 Bromoform 123 1,1,2,2-Tetrachloroethane 120 Toluene 128 Chlorobenzene 96 Ethylbenzene 92 Checked and Approved: Report Date: __m _.mm GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 9080g-0911 (310) 498-9515 (800) 624-5744 and Testing Sen~ce QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF VOLATILE ORGANICS BY GC/MS EPA METHOD 8240 GEOTEST CLIENT NAME, GEORESEARCH GEOTEST PROJECT NO: 92400-17 GEOTEST PROJECT NAME= UNOCAL #3655 ~ DATE ANALYZED=07/13/92 · aA~J~..~SX2JJ=~o I n COMPOUND MATRIX SPIKE MATRIX SPIKE % RECOVERY DUPLICATE % REPRODUCIBILITY 1,1-Dichloroethene 90 106 Trichloroethene 79 143 Benzene 95 102 Toluene 105 118 Chlorobenzene 102 105 Checked and Approved: Report Date: GEOTEST An Environmental IV~onitoring Post Office Box g0911, Long Beach, California g0~0g-0911 (310) 49~-9515 (1~0) 624-5744 and Testing Sen~ce LABORATORY REPORT GEORESEARCH DATE SAHPLED ~ O7/Ol/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED~ 07/01/92 FRESNO, CA 93721 DATE ANALYZED~ 07/09/92 SAMPLE MATRIX~ SOIL ATTENTIONs WARREN .GROSS CLIENT ID ~ 92080 GEOTEST PROJECT NO.~ 924OO-17 ANALYSESs 8240 SAMPLE IDs LF2-7 PROJECT-NAMEs UNOCAL #3655 LOCATIONs 2600 PIERCE ROAD BAKERSFIELD, CA PAGE I OF 2 A~ALYSIS OF VOLATILE.ORGANICS BY GAS CHRONATOGRAPHY! MASS SPECTROMETRY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT (ug/kg) (ug/kg) Chloromethane ND 5.0 Bromomethane ND 5.0 'Vinyl chloride ND 5.0 Chloroethane ND 5.0 Trlchlorofluoromethane ND 5.0 1,1-Dlchloroethene ND 5.0 Methylene chloride ND 10 1,1-Dichloroethane ND 5.0 trans-l,2-Dichloroethene ND 5.0 Chloroform ND 5.0 1,2-Dichloroethane ND 5.0 1,1,1-Trichloroethane ND 5.0 Carbon tetrachloride ND 5.0 Bromodichloromethane ND 5.0 1,2-Dichloropropane ND 5.0 ND - Not detected below indicated limit of detection.~/~~ Analyst, FH,' PT Reviewed and Approveds Report dates / ~//~/~ This report pertains only to the samples investigated and does not · necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST ~o~ office Box 90911, Long Beach, California 90809-0911 (310)498-9515 (800)624-5744 An Environmental Moniloring and Testing Serv/ce -- L A B 0 R'A T 0 R Y R E P O R T GSORS~SARCH DATE ~AMPLSD~t O7/0'1/92 1713 TULARE STREET, SUITE 113 DATE RECEIVEDs 07/01/92 FRESNO, CA 93721 DATE ANALYZEDs 07/09/92 SAMPLE MATRIXs SOIL ATTENTIONs WARREN GROSS CLIENT ID s 92080 GEOTEST PROJECT N0.= 92400-17 ANALYSES~ 8240 SAMPLE IDs LF2-7 PROJECT NAMEs UNOCAL #3655 · LOCATION= 2600 PIERCE ROAD BAKERSFIELD, CA PAGE 2 OF 2 A~J~Y~ Off VOhAT~hS ORGAM~C~ BY GA~ CUKOHATROGRAPHY! HASS SPECTROHETR¥ BY EPA HETHOD 8240 COMPOUNDS RESULTS - DETECTION LIMIT (ug/kg) (ug/kg) cis-l.3-Dichloropropene ND 5.0 Trichloroethene ND 5.0 Dibromochloromethane ND 5.0 1.1.2-Trichloroethane ND 5.0 Benzene ND 5,0 trans-l,3-dichloropropene ND 5.0 Brouoform ND 5.0 Tetrachloroethene ND 5.0 1,1,2,2-Tetrachloroethane ND 5.0 Toluene ND 5.0 Chlorobenzene ND 5.0 Ethylbenzene ND 5.0 m,p-Xylenes ND 5.0 o-X¥1ene ND 5.0 1,3-Dichlorobenzene ND 5.0 1,4-Dichlorobenzene ND 5.0 .1,2-Dichlorobenzene ND 5.0 ND - Not detected below indicated limit of detection. ~/~//// Analyst= FH, PT Reviewed and Approved= Report date: 7/IJ/f~/ This report pertains only to the samples investigated and d6~s not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. ~m m~ m m m m GEOTEST An Enyironmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF VOLATILE ORGANICS BY GC/MS EPA METHOD 8240 GEOTEST CLIENT NAMEr GEORESEARCH GEOTEST PROJECT NO~ 924OO-17 GEOTEST PROJECT NAME~ UNOCAL #3655 'DATE ANALYZED~07/09/92 SAMPLE MATRIXtSOIL COMPOUND METHOD BLANK DETECTION LIMIT CONCENTRATION (ug/kg) (ug/kg} Chl°romethane O.21 5.0 Bromomethane ND 5.0 Vinyl chloride ND 5.0 Chloroethane ND 5.0 Trichlorofluoroaethane ND 5.0 1,1-Dichloroethene ND 5.0 Methylene chloride 2.7 10 1,l-Dtchloroethane ND 5.0 trans-l,2-Dichloroethene ND 5.0 Chloroform O.11 ~.0 1,2-Dichloroethane ND 5.0 1,l,l-Trichloroethane ND 5.0 Carbon tetrachloride ND 5.0 Bromodlchloromethane ND' 5.0 1,2-Dichloropropane ND 5.0 An Environmental Monitoring and Testing Service -- QUALITY ASSURANCE/QUALITY CCNTROL SUMMARy. ANALYSIS OF VOLATILE ORGANICS BY GC/HS EPA METHOD 8240 GEOTEST CLIENT NAME~ GEORESEARCH GEOTEST PROJECT NO: 924OO-17 GEOTEST PROJECT NAME: UNOCAL t3655 DATE ANALYZED~07/09/92 SAMPLE HATRIXsSOIL COHPOUND METHOD BLANK DETECTION LIHIT CONCENTRATION (ug/kg) (ug/kg) cis-l,3-Dlchloropropene ND 5.0 Trichloroe=hene ND 5.0 Dlbromochloromethane ND 5.0 1,1.2-Trichloroethane ND 5.0 Benzene ND 5.0 trans-l.3-dichloropropene ND 5.0 Bromoform ND 5.0 Te~rachloroethene 0.029 5.0 1.1.2.2-Te~rachloroe~hane ND 5.0 ,Toluene 0.084 5.0 Chlorobenzene ND 5.0 Ethylbenzene 0.028 5.0 i,p-Xylenes ND 5.0 o-X¥1ene ND 5.0 X,~-D~chlorobenzene ND 5.0 1,4-Dichlorobenzene ND 5.0 1,2-Dichlorobenzene ND 5.0 GEOTEST An Environmental Monitoring Post Office Box 90911. Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF VOLATILE ORGANICS BY GC/MS EPA METHOD 8240 GEOTEST CLIENT NAME, GEORESEARCH GEOTEST PROJECT NO~ 92400-17 GEOTEST PROJECT NAME, UNOCAL #3655 DATE ANALYZED~07/09/92 SAMPLE MATRIX,SOIL COMPOUND LC~ % ACCURACY Chloromethane 110 Vinyl chloride 114 1.1-Dichloroethene 89 1.1-Dichloroethane 69 Chloroform 69 1.2-Dichloropropane 78 Sromoform 115 1.1.2.2-Tetrachloroethane 95 Toluene 101 Chlorobenzene 94 Ethylbenzene 87 / , GEOTEST Post Office Box gO911, LongBeach. Calif°rniag0809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Sen4ce QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF VOLATILE ORGANICS BY GC/MS EPA HETHOD 8240 GEOTEST CLIENT NAMEs GEORESEARCH GEOTEST PROJECT NO~ 924OO-17 GEOTEST PROJECT NAMEs UNOCAL #3655 DATE ANALYZEDs07/09/92 ~AMPLE HATRI~SOIL COMPOUND MATRIX SPIKE MATRIX SPIKE -~ % RECOVERY DUPLICATE % REPRODUCIBILITY · 1.1-Dichloroethene 103 71 Trichloroethene 94 · Benzene 93 92 Toluene 112 77 Chlorobenzene 99 98 Checked and Approved: Report Dates __mm -- m m m m · m~ GEOTEST Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 An Environmental Monitoring and Testing Service LABORATORY REPORT GF. ORESE~L'~H DATI~ SAHPLF-D , O7/O1/92 1713 TULARE STREET. SUITE 113 DATE RECEIVED, 97/O1/92 FRESNO. CA 93721 DATE ANALYZED, 07/09/92 SAMPLE MATRIX, SOIL ATTENTION, WARREN GROSS CLIENT ID , 92080 GEOTEST PROJECT NO., 924OO-17 ANALYSES, TITLE 22 METALS PROJECT NAME, UNOCAL #3655 SAMPLE ID, LF1-5 2600 PIERCE ROAD BAKERSFIELD. CA ANALYSIS OF METALS BY ICP EPA METHOD 6010 METALS RESULTS DETECTION LIMITS (Rg/kg) (Rg/kg} Arsenic ND 3.0 Bariu~ 42 0.02 Chromium 4. I O. 12 Copper 4.0 0.29 Lead ND 1.0 Nickel 1.8 O. 20 Thallium 16 2.5 Zinc 29 0.11 Analyst, SC Reviewed and Approved, Report date, - ~/~/~ This report pertains only to =he samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. __~ m~ m m -- m __m m GEOTEST An Environmental Monitoring Post Office Box ~11, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 ancl Testing Service LABORATORY REPORT ~E~RESEARCH DAT~ SAMPLaD , 07/01/92 1713 TULARE STREET, SUITE 113 DATE RECEIVEDz 07/01/92 FRESNO, CA 93721 DATE ANALYZED~ 07/09/92 SAMPLE MATRIX~ SOIL AT,TENTION~ WARREN GROSS CLIENT ID ~ 92080 GEOTEST PROJECT NO.~ 924OO-17 ANALYSES~ TITLE 22 HETALS PROJECT NAHE~ UNOCAL #3655 SAMPLE ID~ LF3-6 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF METALS By ICP EPA HETHOD 6010 METALS RESULTS DETECTION LIMITS (mg/kg) (mg/kg) Arsenic ND 3.0 Barium 46 0.02 Chromium 3.4 O.12 Copper 13 0.29 Lead 7.8 1.O Nickel 2.1 0.20 Thallium 12 2.5 Zinc 21 0.11 .ND - Not detected. ~/~// Analysts SC Reviewed and Approved~ , Report date~ This report pertains only to the samples investigated a~d does not necessarily apply to other apparently identical or similar materials. Thls report is submitted for the exclusive use of the client to whom it ls addressed. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service A # E N 0 E O L A B O R A T O R Y R E P O R T 1713 TULARE STREET, SUITE 113 DATE RECEZVED: e7/el/92 FRESNO, CA 93721 DATE ANALYZED: 07/e9/92 SAMPLE HAl*RIX: SOIL ATTENTION: WARREN GROSS CLIENT ID : '" 9208e GEOTEST PRO3ECT NO.: 924e0-17 ANALYSES: TITLE 22 METALS PROJECT NAME: UNOCAL #3655 SAMPLE ID: LF4-6 26ee PIERCE ROAO BAKERSFIELD, CA ANALYSIS OF METALS BY ICP EPA METHOD 6ale METALS RESULTS DETECTION LIMITS (mg/k9) (mg/kg) .Arsenic NO 6arium 41 e.e2 Chromium 3.6 e.12 Copper 4.e 0.29 'Lead~ 1.2 1o0 Nicke[ 1.7 ~.2~ Thallium 13 2.5 Zinc 29 e.ll ND - Not detecCed. Analyst: SC Reviewed and Approved: Report date:' This report pertains on1¥ to ~he samples invest/gated 'a~d does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST is a division of GEOSERVICES. a California corDoration. GEOTEST An Environmental Monitoring POSt Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT GEORK~ARcM DATE S~HPLED , 07/01/92 ................. 1713 TULARE STREET. SUITE 113 DATE RECEIVED, O7/01/92 FRESNO, CA 93721 DATE ANALYZED, 07/09/92 SAMPLE MATRIX, SOIL ATTENTION, WARREN GROSS CLIENT ID , 92080' GEOTEST PROJECT NO., 924OO-17 ANALYSES, TITLE 22 METALS PROJECT NAME, UNOCAL #3655 SAMPLE ID, LF2-7 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF METALS BY ICP EPA METHOD 6010 METALS RESULTS DETECTION LIMITS (ug/kg) (ag/kg) Arsenic ND 3.0 Barium 35 0.02 Chroaiua 3.0 O.12 Copper 3.4 0.29 Lead ND 1.O Nickel 1.6 0.20 Thallium 14 2.5 Zinc 28 O.11 ND - Not detected. Analyst, SC Reviewed and Approved, Report date, ~//.~/~- This report pertains only to the samples investigated and d°.es not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. ~F~TlZRT in n rtivi~inn nf ~I::CI.C;I:I:IVI~./:~ n C'~lifnmin' cnrr~3ration. 3960 Gilmnn Strool GEOTEST ,,,~.m~,' Long 13oach, CA.90Bi5 PROJECT NO: ~ Tolophono: (310) 49~-9515 (O00) 624-5744 CHAIN-OF-CUSTODY RECORD DATE PROJECT NAME U~O C~L ~ ~ ~ ~j METHODS SPECIAL HANDLING SAMPLER'S SIG URE z SAMPLE NO. DATE TIME LOCATION GNATURE .,IGN~I IR~ SlGNATU~~ CHAIN OF CUSTODY SEAL PRINTED NAME ' TIME PIIINH;~,IAME EDgE ~ c~ ~cj~ PROJECT COMMENTS' SIG~TURE . ' COMPANY COMPAN~ COMPANY GEo I ES1 3960 Gilman Slroel GEOTEST Long Boach. CA.90015 PROJECT NO: ~ Telophone: (3~0) 498-9515 (~00) 624-5744 CHAIN-OF-CUSTODY RECORD DATE PROJECT NAME., ~ o CR L .. ~ ............ METHODS SPECIAL HANDLING SAMPLER'S SIGNATURE ~ ~~ . PRINTED NAME _ ~] ~t~ ~Q_~_~ CLIENT PROJECT NO. ~ ~ ~ (~ ~ ~ ~ ~ X -- O PROJECT MANAGERsAMPLE NO. ~c~-~-~ ~" ~'~ ~,,DATE. ~IME' ....... ........................... LOCATION X .l .... ~ ................... ~ I,~ ......... - Ml R~LIN~IS~EO aY DATE ~I REUNOUlSH[D aY DATE I~"~u""~'s"~""' DATE S~UPLECONDmONS ~GNATURE ~ -- .......... ~ ---- SIGNATURE~ SlGNA'[I.~E ~ CHAIN OF CUSTODY SEAL E ~. PROJECT COMMENT~ P~INTED~ME , TI~E Pn~N~ N~UE TIME PRINTETIME COMPANY COMPANY COMPANY PRINT~ NAME Ge 0~ TIME PRIN r'ED'NAME '~ _~"--~-- -'- ~' TIME PRINTED NAME~~%,n~ ~ ~TIME ' COMPANY COMPANY~ COMPAN~ GEOTEST 3960 Gilman Slreol GEOTEST ~m~r~,' LongBoach. CA.90815 PROJECTNO: C:~ ~. ['/OO,- r"~ ~ Tolephone: (310) 498-9515 (800) 624-5744 CHAIN-OF-CUSTODY RECORD DATE PROJECT NAME {,jj~Oc..,~,,- ~ v., ~' =~ METHODS SPECIAL HANDLING ;~'~-~ ~ ~ ~ - PRINTED NAME _ ~ ~_~ ................ CLIENT PROJECT NO ~0 ~(P ............................. .............. .................... .' . ¢~:~,.,.~!...'~_:Q ............... ........................................................ ...................... ................................ gl~,,~.~ T- ~:l~'~q~-~-~,t~'~ ............ ~G~TURE' ~ ..-~ ~ S G~IE ~ CHAIN OF CUSTODY S~L Y~S~ P~N~ TIME PnlNTFp NAME TIME PRINTED NAMe % TIME . .~/ . ..o:~c~ co~.~s COMPANY " COMPANY COM SIGNORE SIGNATURE PRIN~D NAME TIME )~'~M. TIME PRIN TIME ~'~ GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 908(}9-0911, (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT GEORESEARCH DATE SAMPLED : ' 09/30/92 '1713 TULARE STREET,' SUITE 113 DATE RECEIVED: 10/02/92 FRESNO, CA 93721 DATE ANALYZED: 10/02/92 SAMPLE MATRIX: SOIL ATTENTION: WARREN GROSS CLIENT IO : 92080 GEOTEST PROJECT NO.: 92400-1Z ANALYSES: 418.1 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT BY INFRARED SPECTRONETRY EPA NETHOD 418.1 SAMPLE ID RESULTS DETECTION LIMIT (mg/kg) (mg/kg) SPE-1 560 10 SPE-2 370 10 SPE-3 1200 10 SPE-4 230 10 SPE-5 310 10 SPE-6 220 10 Analyst: TF Reviewed and Approved: Report date: lhls report pertalns only to the samples investigated and does not necessarily apply to other apparently identical or slmilar materials. Thls report ls submitted for the exclusive use of the c11ent to whom is addressed. m m m GEOTEST Post Office Box 90911. LongBeach, Califomiag0809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring ~ and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF TOTAL RECOVERABLE PETROLEUM HYDROCARBONS EPA METHOD 418.1 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 92400-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: 10/02/92 SAMPLE MATRIX: SOIL ELAP certification #1225 Analyses method: 418.1 CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) METHOD BLANK NO 10 ~ ' ACCEPTABLE 'RANGE ACCURACY LABORATORY CONTROL STANDARD 109 70 - 130% ~ ACCEPTABLE RANGE RECOVERY MATRIX SPIKE 107 70 - 130% % ACCEPTABLE RANGE REPRODUCIBILITY MATRIX SPIKE DUPLICATE 100 70 - 130% 3960 Gilman Slreet GEOTEST Long 13ot~ch, CA.90815 "-~'~ Telephone: (310) 498-9515 (800) 624-5744 CHAIN-OF-CUSTODY RECORD PROJECT ~(~: DATE tO ~'~.. PAGE . I OF PROJECT NAME ~ ~ O C_ ~x, ~.. METHODS SPECIAL HANDLING ADDRESS ~-~O O SAMPLER'S SIGNATI PRINTED NAME CLIENT PROJECT NO. o~.~..~ ,c~(~ _ (~ ~__ SAMPLE NO, DATE TIME LOCATION RELINQUISHED BY RELINQUISHED BY RELINQUISHED BY ." - SAMPLE CONDITIONS RECEIVED ON ICE (~N i 7~:'¢'"' SIGNATURE SIGNATURE CHAIN OF CUSTODY SEAL YE,?~I~ PRINTED NAME ~ PRINTED NAM PROJECT COMMENTS RECEIVED BY RECEIVED BY SIGNATURE~/ SIGNATURE .... PRINTED NAME PRINTED N~ COMPANY ~ COMPANY GEOTEST Post Office BOx 90911, Long Beach, California 90809-0911 (310) 498-9515 (800,) 624-5744 An Environmental Monitoring and Testing Service LABORATORY REPORT ,GEORESEARCH DATE SAMPLED : 5/14,15/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: 5/14,15/92 FRESNO, CA 93721 DATE ANALYZED: 05/22/92 SAMPLE MATRIX: SOIL ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 924OO-17 ANALYSES: 418.1 PROJECT NAME: UNOCAL' #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT BY INFRARED SPECTROMETRY EPA METHOD 418.1 SAMPLE ID RESULTS DETECTION LIMIT (mg/kg) (mg/kg) SEPTIC TANK 510 10 SEEPAGE PIT 28 10 T3-C-9 ND 10 T3-C-13 ND 10 ND - Not detected below indicated limit of detection.~/~// Analyst: DR Reviewed and Approved: Report date: . This report pertains only to fh'~ samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST An Environmental Monitoring F~ost Office Box g0g11, Long Beach, California g080g-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF TOTAL RECOVERABLE PETROLEUM HYDROCARBONS. EPA METHOD 418.1 GEOTEST CLIENT NAMEs GEORESEARCH GEOTEST PROJECT NOs 924OO-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: 05/15/92 SAMPLE MATRIX: SOIL SLAP certification #1623 Analyses method: 418.1 CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) METHOD BLANK ND 10 % A~'~EP~AB LE" RIDGE ACCURACY LABORATORY CONTROL STANDARD 97 70 - 130% % ACC~PTABL~ RANGE RECOVERY % MATRIX SPIKE 95 70 - 130% % ACCSPTABLE""RANGE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 100 70 - 130% Checked and Approved: Report Date: GEOTEST Post Office Box gOgl t Long Beach, Galifomiag080g-0g11 (310) 498-9515 (800) 624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY cONTROL SUMMARY -- ANALYSIS OF TOTAL RECOVERABLE PETROLEUM HYDROCARBONS EPA METHOD 418.1 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 924OO-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: 05/22/92 SAMPLE MATRIX: SOIL ELAP certification #1612 Analyses method: 418.1 CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) - METHOD BLANK ND 10 ACCURACY % LABORATORY CONTROL'STANDARD 101 70 - 130% % ~'CSPTABLE-RANGE RECOVERY % MATRIX SPIKE 101 70 - 130% % AC'CEPTABLE RANGE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 1OO 70 - 130% Checked and Approved: ./~/ / ~ ,~ Report Date: //~/~7~ GEOTEST Post Office Box 90911. LongBeach. California90809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Service GEORESEARCH DATE SAMPLED , O5/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O5/14/92 FRESNO. CA 93721 DATE ANALYZED: 05/22/92 SAMPLE MATRIX, WATER ATTENTION: WARREN GROSS CLIENT ID ~ 92080 GEOTEST PROJECT NO., 924OO-17 ANALYSES: 418.1 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT.BY INFRARED SPECTROMETRY EPA METHOD 418.1 SAMPLE ID RESULTS DETECTION LIMIT (mg/L) (mg/L) SEPTIC TANK 0.6 0.5 ND - Not detected below indicated limit of detection.~/~// Analyst: SJ Reviewed and Approved: Report date: This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF TOTAL RECOVERABLE PETROLEUM HYDROCARBONS EPA METHOD 418.1 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO= 924OO-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: 05/22/92 SAMPLE MATRIX: WATER ELAP certification #1612 Analyses method: 418.1 CONCENTRATION DETECTION LIMIT (mg/L) (mg/L) METHOD BLANK ND 0.5 ..... % ' ' - - ~~-d ' ~* ~ ~ --R-~-~G E ACCURACY % LABORATORY CONTROL STANDARD 98 70 - 130% % Ac'~'~PT~BL~ RAN'GE RECOVERY % MATRIX SPIKE 87 70 - 130% % ACCEPTABLE RANGE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 98 70 - 130% 'Checked and Approved: Report Date: LABORATORY REPORT GEORESEARCN DATE SAMPLED = 95/14/92 1713 TULARE STREET.'SUITE'll3 DATE RECEIVED, 05/15/92 FRESNO. CA 93721 DATE ANALYZED= 05/23/92 SAMPLE MATRIX= SOIL ATTENTION, WARREN GROSS CLIENT ID = 92080 GEOTEST PROJECT NO.= 92400-17 ANALYSES= TPH-D PROJECT NAME, UNOCAL #3655 LOCATION~ 2600 PIERCE ROAD BAKERSFIELD. CA ANALYSIS OF HYDRocARBoN CONTENT BY GAS CHROMATOGRAPHY CAL/DOHS TPH FOR DIESEL SAMPLE ID RESULTS DETECTION LIMIT (mg/kg) (mg/kg) SEPTIC TANK ND 10 SEEPAGE PIT ND 10 ND - Not detected below indicated limit of detection. Analyst~ MB Reviewed and Approved~ /~/~/ Report date~' This report pertains only to the sampl'es investigated a~ does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is. addressed. GEOTEST poSt Office Box g0gll, LongBeach, Califomiago80g-0911 (310)498-9515 (800) 624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF HYDROCARBON CONTENT BY GAS CHROMATOGRAPHY -- TOTAL PETROLEUM HYDROCARBONS - DIESEL GEOTEST CLIENT NAMEs GEORESEARCH GEOTEST PROJECT NOs 92400-17 GEOTEST PROJECT NAME~ UNOCAL #3655 DATE ANALYZED ~ 05/23/92 SAMPLE MATRIX .. SOIL CONCENTRATION DETECTION LIMIT (mg/kg) (mE/kg) METHOD BLANK ND 10 ' " AcCF. PT/(BLF. R~GE ACCURACY % LABORATORY CONTROL STANDARD 107 70 - 130% % ACCEPTABLE RANGE RECOVERY MATRIX SPIKE 125 70 - 130% % ACCEPTABLE RANGE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 73 70 - 130% GEOTEST An Environmental Monitoring Post Office Box 90911. Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT GEORESEARCH DATE SAHPLED , 05/14/92 1713 TULARE STREET. SUITE 113 DATE RECEIVED, O5/15/92 FRESNO. CA 93721 DATE ANALYZED, 05/22/92 SAMPLE MATRIX, WATER ATTENTION= WARREN GROSS CLIENT ID , 92080 GEOTEST PROJECT NO., 92400-17 ANALYSES, TPH-D PROJECT NAME, UNOCAL #3655 LOCATION= 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT BY GAS CHROHATOGRAPHY CAL/DOHS TPH FOR DIESEL SAMPLE ID RESULTS DETECTION LIHIT (mg/L) (mg/L} SEPTIC TANK ND 0.5 ND - Not detected be low indicated limit of de Analyst, DR, MB Reviewed and Approved,~'/'"//"//'~''z/ Report date,'' This report pertains only to the samples investigated and does not 'necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. m __m m __m m GEOTEST An Environmental Monitoring F~st Office Box 90911, Long Beach, California g080g-0911 (310) 498-9515 (800) 624-5744 and Testing Se~ce QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF HYDROCARBON CONTENT BY GAS CHROMATOGRAPHY -- TOTAL PETROLEUM HYDROCARBONS - DIESEL GEOTEST CLIENT NAME: GEORESEARCM GEOTEST PROJECT NO, 92400-17 GEOTEST PROJECT NAME~ UNOCAL #3655 DATE ANALYZED= 05/22/92 SAMPLE MATRIX= WATER CONCENTRATION DETECTION LIMIT (mg/L) (mg/L) METHOD BLANK ND 0.5 ACCURACY LABORATORY CONTROL STANDARD 103 70 - 130% % ACCEPTABLE RANGE RECOVERY % MATRIX SPIKE 117 70 - 130% Checked and Approved: Report Date, "GEOTEST " An Environmental Monitoring Post Office Box 90911, Long Beach, Califomia 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY RRPORT GEORESEARCH DATE SAMPLED : O5/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED~ O5/15/92 FRESNO. CA 93721 DATE ANALYZED: 05/26/92 SAMPLE MATRIX, SOIL ATTENTIONs WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 92400-17 ANALYSES~ FLASHPOINT PROJECT NAME~ UNOCAL #3655 LOCATION, 2600 PIERCE ROAD BAKERSFIELD, CA FLASHPOINT EPA METHOD 1010 SAMPLE ID RESULTS SEPTIC TANK DID NOT IGNITE UP TO 200° SEEPAGE PIT DID NOT IGNITE UP TO 2000 ND - Not detected below indicated limit of detectio'n. ~ ~/~~ Analyst: SC Reviewed and Approved: -' Report date: This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or 'similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. m __mm ' __m m m GEOTEST · An Environmental Monitoring Post Office Box 90911. Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Sen~ice L A B O.R A T 0 R Y R E P O R T GEORESEARCH DATE SAMPLED : 05/14/92 .1713 TULARE STREET, SUITE 113 DATE RECEIVED: O5/15/92 FRESNO. CA 93721 DATE ANALYZED: 05/26/92 SAMPLE MATRIX: WATER ATTENTION= WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.~ 92400-17 ANALYSES: FLASHPOINT PROJECT NAME= UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD. CA FLASHPOINT EPA HETHOD 1010 SAMPLE ID RESULTS SEPTIC TANK DiD NOT IGNITE UP TO 2OO0 ND - Not detected below indicated limit of detection.~/// Analysts SC Reviewed and Approved: Report date: This report pertains only to the samples investigated and"'""~'e~ not necessarily apply-to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST Post office Box 9091% Long Beach. California 90809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Sef~ice LABORATORY REPORT GEORESEARCH DATE SAMPLED : 05/14/92 1713 TULARE STREET. SUITE 113 DATE RECEIVED: 05/15/92 FRESNO, CA 93721 DATE ANALYZED: 05/29/92 SAMPLE MATRIX: WATER ATTENTION= WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 924OO-17 ANALYSES: 8240 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA PAGE 1 OF 2 SAMPLE ID: TRIP BLANK ANALYSIS OF VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ MASS SPECTROMETRY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT (ug/L) (ug/L) Chloromethane ND 10 'Bromomethane ND 10 Vinyl chloride ND 10 Chloroethane ND 10 Trichlorofluoromethane ND 10 1,1-Dichloroethene ND 10 Methylene chloride ND 10 1.1-Dichloroethane ND 10 trans-l.2-Dichloroethene ND 10 Chloroform ND 10 1,2-Dichloroethane ND 10 1.1,1-Trichloroethane ND 10 Carbon tetrachloride ND 10 Bromodichloromethane ND 10 1,2-Dichloropropane ND 10 ND - Not detected below indicated limit of detection. ~///~// Analyst: PT Reviewed and Approved: Report date:' ' ~ ' ~//~/~ '~his report pertains only to the samp'ies investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted, for the exclusive use of the client to'whom it is addressed.. GEOTEST An Environmental Monitoring POSt Office 'Box 90911, Long Beach, Califomia 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O5/15/92 FIRES'NO, CA 93721- DATE ANALYZED, 05/29/92 SAMPLE MATRIX, WATER ATTENTION, WARREN GROSS' CLIENT ID , 92080 GEOTEST PROJECT NO.: 924OO-17 ANALYSES: 8240 PROJECT NAME: UNOCAL #3655 LOCATION, 2600 PIERCE ROAD BAKERSFIELD, CA PAGE 2 OF 2 SAMPLE ID: TRIP BLANK ANALYS~S'--OF VO~ATILu oRGA~C~ UY GAS Ch~-0~TRoGRAP~¥/ MASS SPECTROHETRY BY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT (ug/L) (ug/L) cis-l,3-Dichloropropene ND 10 Trichloroethene ND 10 Dtbromochloromethane ND 10 1,1,2-Trichloroethane ND 10 Benzene ND 10 trans-l,3-dichloropropene ND 10 Bromoform ND 10 Tetrachloroethene ND 10 1,1,2,2-Tetrachloroethane ND 10 Toluene ND 10 Chlorobenzene ND 10 Ethylbenzene ND 10 m,p-Xylenes ND 10 o-Xylene ND 10 1.3-Dichlorobenzene ND 10 1.4-Dichlorobenzene ND 10 1,2-Dichlorobenzene ND 10 ND - Not detected below indicated limit of detection. ~/~.~// Analyst:PT Reviewed and Approved: Report date, This report pertains only to the samples investigated and does not · necessarily apply to other apparently identical or similar materials. This report is submitted for. the exclusive 'use of the client to whom it is addressed. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Sen~ice LABORATORY REPORT ~EOR'BSEAR~H DATE SARP'~'~'D , O5/14/92 1713 TULARE STREET. SUITE 113 DATE RECEIVED, O5/15/92 FRESNO. CA 93721 DATE ANALYZED, 05/26/92 SAMPLE MATRIX~ WATER ATTENTIONs WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.= 924OO-17 ANALYSES~ TITLE 22 METALS PROJECT NAME, UNOCAL #3655 SAMPLE ID~ SEPTIC TANK 2600 PIERCE ROAD BAKERSFIELD. CA ANALYSIS OF METALS BY ICP EPA METHOD 6010 METALS RESULTS DETECTION LIMITS (mE/L) (mg/L) Antimony ND 0.018 Arsenic ND 0.054 Barium 0.10 0.001 Beryllium ND 0.0004 Cadmium ND 0.002 Chromium 0.026 0.006 Cobalt ND 0.003 Copper ND 0.025 Lead ND O.O16 Holybdenum ND 0.02 Nickel 0.022 0.004 Selenium ND 0.003 Silver ND 0.004 Thallium ND 0.023 Vanadium ~ O.014 0.003 Zinc 0.21 0.021 ND - Not detected. ~/~// Analyst: SC Reviewed and Approved: Report date, ' ~Fw~/z~~ This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST Post Office Box gOg11, LongBeach, CalifomiagO809-0911 (310)498-g515 (800)624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUHHARY -- ANALYSIS OF METALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAHE, GEORESEARCM GEOTSST PROJECT NO, 92400-17 GEOTEST PROJECT NAME, UNOCAL #36§§ DATE ANALYZED,05/26/92 SAMPLE MATRIX,WATER Elements METHOD BLANK DETECTION LIMIT (mg/L) (mg/L) Antimony ND O. O 18 Arsenic ND 0.054 Barium ND O. OO1 Be fy11 ium ND O. 0004 Cadmium ND 0.002 Chromium ND O. 006 Cobalt ND 0. 003 Copper ND 0. 025 Lead ND O.O16 Mo lybdenum ND O. 02 Nickel. ND 0.004 Selenium ND O. 003 Silver ND O. 004 Thallium ND 0.023 Vanadium ND O. 003 Zinc ND O. 021 Checked and Approved: Report Date, GEOTEST ~o= office Box 90911, Long Beach, Califomia 90809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring 'and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF METALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAME~ GEORESEARCH GEOTEST PROJECT NOt 924OO-17 GEOTEST PROJECT NAMEs UNOCAL #3655 DATE ANALYZED~05/26/92 SAMPLE MATRIX~WATER Elements LCS ACCURACY Antimony 102 Arsenic 105 Barium 105 Beryllium 101 Cadmium 105 Chromium 101 Cobalt 101 Copper 104 Lead 104 Molybdenum 101 Nickel 102 Selenium 100 Silver 110 Thallium 108 Vanadium 104 Zinc 108 Report Date= GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, Califomia 90809-0911 . (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF METALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAME, GEORESEARCH GEOTEST PROJECT NO, 92400-17 GEOTEST PROJECT NAME, UNOCAL #3655 DATE ANALYZED,05/26/92 SAMPLE MATRIX,WATER Elements .MATRIX SPIKE MATRIX SPIKE RECOVERY DUPLICATE REPRODUCIBILITY % % Antimony 87 100 Arsenic 98 99 Barium 101 100 Beryllium 95 1OO Cadmium 93 100 Chromium 96 101 Cobalt 96 101 'Copper 98 101 Lead 95 101 Molybdenum 97 100 Nickel 96 100 Selenium 95 102 Silver 97 113 Thallium 96 99 Vanadium 99 101 Zinc 102 104 Checked and Report Date: GEOTEST An Environmental Monitoring Post Office Box 90911. Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service hABORATORY REPORT 'GEORIiISEARCH DATE SAHpr. ED ,, 05/i'4/9'2 ........ 1713 TULARE STREET. SUITE 113 DATE RECEIVED.. 05/15/92 FRESNO. CA 93721 DATE ANALYZED.' 05/26/92 SAMPLE MATRIX ,, SOIL ATTENTION, WARREN GROSS CLIENT ID , 92080 GEOTEST PROJECT NO.: 92400-17 ANALYSES: TITLE 22 METALS 'PROJECT NAMEs UNOCAL #3655 SAMPLE ID.' SEPTIC TANK 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF METALS BY ICP EPA METHOD 6010 METALS RESULTS DETECTION LIMITS (mg/kg) (mE/kg) -Antimony ND 0.91 Arsenic 12 7.5 Barium 120 0.02 BerylliUm 0.13 0.06 Cadmium ND 0.40 Chromium 22 0. 12 Cobalt 5.7 0.32 Copper 21 0.29 Lead 41 2.5 MolYbdenum 4.8 0.75 Nickel 8.3 0.20 Selenium ND 4.0 Silver ND 0.18 Thallium 19 13 Vanadium 19 O. 17 Zinc 62 0.11 ND - Not detected. Analyst.. SC Reviewed and Approved: Report date: - This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. An Environmental Monitoring and Testing Set,ce LABORATORY REPORT GSORE~SARCH '"DATS'"'~'AMPLSD , 05/'14/92 1713 TULARE STREET. SUITE 113 DATE RECEIVED,. 05/15/92 FRESNO. CA 93721 DATE ANALYZED, 05/26/92 SAHPLE HATRIX, SOIL ATTENTION, WARREN GROSS CLIENT ID ~ 92080 GEOTEST PROJECT NO., 924OO-17 ANALYSES~ TITLE 22 HETALS PROJECT NAME, UNOCAL #3655 SAMPLE ID, SEEPAGE PIT 2600 PIERCE ROAD BAKERSFIELD. CA ANALYSIS OF METALS BY ICP EPA METHOD 6010 HETALS RESULTS DETECTION LIHITS (ag/kg) (ag/kg). Antlmony ND 0.91 Arsenic 9.3 7.5 Barium 75 0.02 Beryllium O.14 0.06 Cadmium ND 0.40 Chromium 9.5 O.12 Cobalt 2.5 0.32 Copper 14 0.29 Lead ND 2.5 Molybdenum 4.0 0.75 Nickel 4.5 · 0.20 Selenium ND 4.0 Silver ND O.18 Thallium ND 13 VanadiUm 15 O.17 Zinc 66 O.11 ,,_,o.,.,..,.,. Analyst, SC Reviewed and Approved, Report date, ' ' ~//r/~~ This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, Califo~mia 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS Off METALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAME, GEORESEARCH GEOTEST PROJECT NO, 924OO-17 GEOTEST PROJECT NAME= UNOCAL #3655 DATE ANALYZED=OS/26/92 SAMPLE MATRIX=SOIL Elements METHOD BLANK DETECTION LIMIT (mg/kg) (mg/kg) Antimony ND O.91 Arsenic ND 7.5 Barium ND 0.02 BerylliUm ND 0.06 Cadmium ND 0.40 Chromium ND 0.12 .... Cobalt ND 0.32 Copper ND 0.29 Lead ND 2.5 Molybdenum ND 0.75 Nickel ND 0.20 Selenium ND 4.0 Silver ND O.18 Thallium ND 13 Vanadium ND O.17 Zinc ND O'.11 Report Date, ~//~. GEOTEST An Environmental Monitoring POst Office Box 90~11. Long Beach, California 90809-O911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF METALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAME, GEORESEARCH GEOTEST PROJECT NO, 924OO-17 GEOTEST PROJECT NAME, UNOCAL #3655 DATE ANALYZED,OS/26/92 SAMPLE MATRIX=SOIL Elements LCS ACCURACY % Antimony 102 Arsenic '105 Barium 105 Eeryllium 101 Cadmium 105 Chromium 101 Cobalt 101 Copper 104 Lead 104 Molybdenum 101 N~ckel 102 Selenium 100 Silver 110 Thallium 108 Yanadium 104 108 Checked and Approved= /Y//~ Report Date, GEOTEST ~o= office BoxgO911. Long Beach. California 90809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Sen~ice QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF METALS BY ICP EPA HETHOD 6010 GEOTEST CLIENT NAME, GEORESEARCH GEOTEST PROJECT NOt 92400-17 GEOTEST PROJECT'NAMEs UNOCAL #3655 DATE ANALYZED=05/26/92 SAMPLE MATRIX=SOIL Elements MATRIX SPIKE MATRIX SPIKE RECOVERY DUPLICATE REPRODUCIBILITY % % Antimony 87 1OO Arsenic · 98 99 Barium 101 100 Beryllium 95 100 Cadmium 93 100 Chromium 96. 101 Cobalt 96 101 Copper 98 101 Lead 95 101 Molybdenum 97 100 Nickel 96 100 Selenium 95 102 Silver 97 113 Thallium 96 99 Vanadium 99 101 Zinc 102 104 Report Date, ~/Y/~ ~ / GEOTEST Office Box g0gll.* Long Beach, California g080g-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Service LABORATORY REPORT GEORESEARCH DATE SAMPLED : O5/14/92 1713 TULARE STREET. SUITE 113 DATE RECEIVED= O5/15/92 FRESNO. CA 93721 DATE ANALYZEDz, 05/27/92 SAMPLE MATRIX= SOIL CLIENT ID : 92080 ATTENTION= WARREN GROSS GEOTEST PROJECT NO.= 924OO-17 ANALYSES: 7471 PROJECT NAMEz UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD. CA ANALYSIS OF HERCURY BY COLD VAPOR/ATONIC ABSORPTION EPA METHOD 7471 SANPLE ID RESULTS DETECTION LIMIT (mg/kg) (mg/kg} SEEPAGE PIT 0.024 0.010 SEPTIC TANK 0.060 O.O10 Analyst= SC Reviewed and Approved: ,//~/v/~, , Report date: ' ~./~cf/~ This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST ~o= office Box9O911, Long Beach, Califomia 90809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF-MERCURY BY COLD VAPOR/ATOMIC ABSORPTION EPA METHOD 7471 GEOTEST CLIENT NAME: GEORESEARCH' GEOTEST PROJECT NO: 92400-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: 06/02/92 SAMPLE MATRIX: SOIL CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) METHOD BLANK ND O.01 .... % AcC~~GE ACCURACY % LABORATORY CONTROL STANDARD 112 70 - 130% RECOVERY % MATRIX SPIKE 100 70 - 130% % ACCE'PT'KBLE RANGE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 110 70 - 130% Checked and Approved= Report Date: -~ ~ mk __m m __m m I 'GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Se~ce LABORATO.R Y REPORT GEORESEARCH DATE SAMPLED : 05/14/92 17'13 TULARE STREET. SUITE 113 DATE RECEIVED~ 05/15/92 FRESNO. CA 93721 DATE ANALYZED~ 05/27/92 SAMPLE MATRIX: WATER CLIENT ID , 92080 ATTENTION, WARREN GROSS GEOTEST PROJECT NO.~ 924OO-17 ANALYSES~ 7470 PROJECT NAME, UNOCAL $3655 LOCATION, 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF MERCURY BY COLD VAPOR/ATOMIC ABSORPTION EPA METHOD 7470 SAMPLE ID RESULTS DETECTION LIMIT (ug/L) (ug/L) SEPTIC TANK ND 0.10 ND - Not detected below indicated limit of detection. ~//_~9~/// Analyst= SC Reviewed and Approved: Report date,/ ~/~/~ This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. __m m m m m An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF MERCURY BY COLD VAPOR/ATOMIC ABSORPTION _ EPA METHOD 7470 GEOTEST CLIENT NAME, GEORESEARCH GEOTEST PROJECT NO, 92400-17 .GEOTEST PROJECT NAME, UNOCAL #3655 DATE ANALYZED, 05/27/92 SAMPLE MATRIX, WATER CONCENTRATION DETECTION LIMIT (ug/L) (ug/L) METHOD BLANK ND O.10 ACCURACY % LABORATORY CONTROL STANDARD 96 70 - 130% % ACC~PTABL~ RANGb RECOVERY % MATRIX SPIKE 96 70 - 130% ~ .... ACCEPTAB'L'~ RA~U'~' REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 165 70 - 130% Checked and Approved Report Date GEOTEST .os~ office Box90911. Long Beach. California 90809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Sen~ice LABORATORY REPORT GEORESEARCH DATE SAMPLED : 05/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: O5/15/92 FRESNO, CA 93721 DATE ANALYZED= 05/28/92 SAMPLE MATRIX: TCLP EXTRACT ATTENTION= WARREN GROSS CLIENT ID : GEOTEST PROJECT NO.: 924OO-17 ANALYSES: 8240 SAMPLE ID= SEPTIC TANK PROJECT NAME= UNOCAL #3655 LOCATION= 2600 PIERCE ROAD BAKERSFIELD. CA ANALYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ MASS spECTROHETRY BY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT TC LIMIT (mg/L) (mg/L) (mg/L) Carbon tetrachloride ND 0.01 0.5 Chlorobenzene ND 0.01 1OO Chloroform ND 0.O1 6.0 1,4-Dichlorobenzene ND 0.O1 7.5 1,2-Dichloroethane ND 0.01 0.5 1,1-Dichloroethylene ND 0.O1 0.7 Tetrachloroethylene ND 0.O1 0.7 · Trichloroethylene ND O.O1 0.5 Vinyl chloride ND 0.01 0.5 Benzene ND 0.O1 0.5 Methylethylketone ND 0.O1 200 ND - Not detected belOw indicated limit of detection.~//~// Analyst: PT Reviewed and Approved: Report date: This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the-exclusive use of the client to whom it is GEOTEST Post Office Box g0911. LongBeach, Califomiag080g-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Service LABORATORY REPORT GEORESEARCH DATE SAMPLED = 05/14/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED= 05/15/92 FRESNO, CA 93721 DATE. ANALYZED= 05/28/92 SAMPLE MATRIX= TCLP EXTRACT ATTENTION= WARREN GROSS CLIENT ID GEOTEST PROJECT NO.= 92400-17 ANALYSES= 8240 SAMPLE ID= SEPTIC TANK. PROJECT NAME= UNOCAL #3655 (SOIL) LOCATION= 2600 PIERCE ROAD BAKERSFIELD. CA ANALYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ MASS SPECTROMETRY BY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT TC LIMIT (mg/L) (mg/L) (mg/L) Carbon tetrachloride ND O.O1 0.5 Chlorobenzene ND 0.01 100 Chloroform ND O.O1 6.0 1,4-Dichlorobenzene ND 0.01 7,5 1,2-Dichloroethane ND O.O1 0.5 1,1-Dichloroethylene ND O.O1 0.7 Tetrachloroethylene ND O.O1 0.7 Trichloroethylene ND 0.O1 0.5 Vinyl chloride ND O.O1 0.5 Benzene ND O.O1 0.5 Methylethylketone ND 0.01 200 ND - Not detected below indicated limit of detection. ~~/// Analyst: PT Reviewed and Approved: Report date: / ~ '~/~/~4~ This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use'of the client to whom it is GEOTEST Post Office Box 90911, LongBeach, Californiag0809-0911 {310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Setwice LABORATORY REPORT GEORESEARCM DATE SAMPLED : 05/14/92 1713 TULARE STREET. SUITE 113 DATE RECEIVED: O5/15/92 FRESNO. CA 93721 DATE ANALYZED= 05/28/92 SAMPLE MATRIX: TCLP EXTRACT ATTENTION: WARREN GROSS CLIENT ID : GEOTEST PROJECT NO.: 924OO-17 ANALYSES= 8240 SAMPLE ID: SEEPAGE PIT PROJECT NAME: UNOCAL #3655 LOCATION:' 2600 PIERCE ROAD BAKERSFIELD. CA AN/tLYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ MASS SPECTROMETRY BY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT TC LIMIT (mg/L) (mg/L) (mg/L) Carbon tetrachloride ND 0.01 0.5 Chlorobenzene ND 0.01 100 Chloroform ND O.O1 6.0 1,4-Dichlorobenzene ND O.O1 7.5 1,2-Dichloroethane ND O.O1 0.5 1,1-Dichloroethylene ND O.O1 0.7 Tetrachloroethylene ND 0.O1 0.7 Trichloroethylene ND 0.O1 0.5 Vinyl chloride ND 0.O1 0.5 Benzene ND 0.O1 0.5 MethYlethylketone ND 0.O1 200 .ND - Not detected below indicated limit of detection. Analyst: PT Reviewed and Approved: Report date: ~' This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is GEOTEST .o= Office Box90911, Long Beach, California 90809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GAS CHROHATOGRAPHY/ MASS SPECTROMETRY BY EPA METHOD 8240 GEOTEST CLIENT NAME~ GEORESEARCH GEOTEST PROJECT NOs 92400-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED=05/29/92 SAMPLE MATRIX~TCLP EXTRACT COMPOUND METHOD BLANK DETECTION LIMIT CONCENTRATION (mg/L) (mg/L) Carbon tetrachloride ND O.O1 Chlorobenzene ND O.O1 Chloroform ND O.O1 1,4-Dichlorobenzene ND 0.01 1,2-Dichloroethane ND O.O1 1,1-Dichloroethylene ND O.O1 Tetrachloroethylene ND 0.01 Trichloroethylene ND 0.01 Vinyl chloride ND 0.01 Benzene ND O.O1 Heth¥1ethylketone ND O.O1 Checked and Approved: ./~~ Report Date: ~/~"//~ GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/ MASS SPECTROMETRY BY EPA METHOD 8240 GEOTEST CLIENT NAME, GEORESEARCH GEOTEST PROJECT NO~ 92400-17 GEOTEST PROJECT NAME, UNOCAL #3655 DATE ANALYZED~O5/29/92 SAMPLE MATRIX~TCLP EXTRACT CO~FDUND % ACCURACY Vinyl chloride 127 1,1-Dichloroethylene 101 1,2-Dichloropropane 86 Chlorobenzene 84 Checked and Approved: Re po mt Date: a'-CI'~TCCT ;e ~ di,,ie;nn ,~f (~.~/3(~1:1~%!1(~.1:.q n (".~lifnmi~ ~.nrr)oratJon. 1860 Oblspo Avenue, Suite A ,~ ..... L~ng Beach, California 90804 ~ PR~E~ NO: '~ Telephone: (213)498-9515 CHAIN-OF-CUSTODY DATE ~//~ ~ ~ PAGE t OF~ PR~E~ NAME ~ ~O~. pl~ ~O~ METHODS REFERENCE ~ ~O ~ a~ ~ ~ CONTAINER TYPE SAMPLERS (SIGNATURE) ~,~ g g ~ ~= LABORATORY ~ ~o ~~ ~ ~ ' - SAMPLE NO.' DATE TIME LOCATION = = ~ z ,, L DATE ~ RELINQUISHED BY DATE ~ RELINQUISHED BY DATE TOTAL - P NA PRINTED NAME PRINTED NAME ~ PRINTEO NAME . ~MPANY .... COMPANY -- COMPA~ - GEOTEST ' ~ 1880 Oblspo Avenue, Sulle A '~ Telephone:(213) 498-9515 CHAIN-OF-CU ~,= ~//?/~ ' - - - REFERENCE q ZO ~0 ~ . ~ ~ ~ ~ql~.~ ~ I C~ ~ 'z ~ ~ C~ ~ ~ ~ ~ ~ ~ ~ o COMMENTS/ SAMPLERS (SIGNATURE)~ ~~ ==- ==0 ~ C, ~ ~ ~= ~ ~ ~ ~ ~ CONTAINER TYPE LABORATORY ~~~ = < = ~ ~ ~' ~ ~ ~ ~ I SAMPLE'NO. DATE TIME LOCATION ~ = ~= ~ ~ =~ ~ ~ { ~ TOTAL NUMBER OF CONTA .ERS ~ GNA~URE '/~ ~IGNATURE ' VPRiNTED~' ~NAME ~ ~ r ~ ~ TIME PRINTED NAME TIME PRINTED~ME TIME RECEIVED ON ICE ~ ""O COMPANY ~OMPANY COMPANY " 'E~ED B~ ,;~ .... SPECIAL SHIPMENT/HANDLiNG ~ DATE UmkECE'V~Dm "Y '~'E B ~C~ ~ ~ (~A~ :~ ~ATE OR S'OR~GE RE~U'REMENTS= '-~~ ~~ TIZ~RiNTEDN.Z -. TIME pfll~~~¢~, TIME , GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Set. ce '-- L A B O R A T O R Y R E P O R T GEORESEARCH DATE SAMPLED , 07/02/92 1713 TULARE STREET. SUITE 113 DATE RECEIVED, 07/02/92 FRESNO. CA 93721 DATE ANALYZED, 07/09/92 SAMPLE MATRIX, SOIL ATTENTION, WARREN GROSS CLIENT ID , 92080 GEOTEST PROJECT NO., 924OO-17 ANALYSES, 8240 SAMPLE ID, COMPOSITE PROJECT NAME, UNOCAL #3655 (SPA, SPB, LOCATION, 2600 PIERCE ROAD SPC. SPD) BAKERSFIELD. CA PAGE 1 OF 2 ANALYSIS OF VOLATILE ORGAIIIC3 BY GAS CHROHATOGRAPfI~! MASS SPECTROMETRY EPA METHOD 8240 COMPOUNDS RESULTS DETECTION LIMIT (ug/kg} (ug/kg} Chloromethane ND 5.0 Eromomethane ND 5.0 Vinyl chloride ND 5.0 Chloroethane ND Trtchlorofluoromethane ND 5.0 1,1-Dichloroethene ND 5.0 Methylene chloride ND 10 1.1-Dlchloroethane ED 5.0 trans-l.2-Dtchloroethene ND 5.0 Chloroform ND 5.0 1.2-Dtchloroethane ND 5.0 1.1,1-Trichloroethane ND 5.0 Carbon tetrachlortde ND 5.0 Bromodtchloromethane ND 5.0 1.2-Dtchloropropane ND 5.0 ND - Not detected below indicated limit of Analyst, FH. PT Reviewed'and APproved, Report date, This report pertains only to the samples investigated and does not .necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom addressed. GEOTEST An Environmental Monitoring Post Office BoxY90911, Long Beach, Califomia 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service .. LABORATORY REPORT GEORS~SARCH DATE SAI~EO t 07'/~z/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED, 07/02/92 FRESNO, CA 93721 DATE ANALYZED8 07/09/92 SAMPLE MATRIX8 SOIL ATTENTION, WARREN GROSS CLIENT ID , 92080 GEOTEST PROJECT NO., 92400-17 ANALYSES~ 8240 SAMPLE ID~ COMPOSITE PROJECT NAME~ UNOCAL #3655 (SPA, SPB. LOCATION~ 2600 PIERCE ROAD SPC, SPD) BAKERSFIELD. CA PAGE 2 OF 2 HASS SPECTRO~TRY BY EPA ~THOD 8240 COMPOUNDS RESULTS DETECTION LIMIT (ug/kg} (ug/kg) cis-l.3-Dichloropropene ND 5.0 Trichloroethene ND 5.0 Dibromochloromethane ND 5.0 1.1.2-Trichloroethane ND 5.0 Benzene ND 5.0 trans-l.3-dichloropropene ND 5.0 BroRofor~ ND 5.0 Tetrachloroethene ND 5.0 1.1.2.2-Tetrachloroethane ND 5.0 Toluene ND 5.0 ChlorobenZene ND 5.0 Ethylbenzene ND 5.0 ~,p-X¥1enes ND 5.0 o-X¥1ene ND 5.0 1.3-Dichlorobenzene ND 5.0 · 1.4-Dichlorobenzene ND 5.0 1.2"Dlchlorobenzene ND 5.0 ND - Not detected below indicated limit of detection. Analyst, FH. PT Reviewed and Approved, Report date, ~' This report pertains only to the samples investigated and d6~ not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client ~o whom it is addressed. · m m m _m i GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Sen4ce QUALITY ASSURANCE/QUALITY CONTROL SUHHARY ANALYSIS OF VOLATILE ORGANICS BY GC/HS EPA HETHOD 8240 GEOTEST CLIENT NAHE~ GEORESEARCH GEOTEST PROJECT NO~ 924OO-17 GEOTEST PROJECT NAHE~ UNOCAL t3655 DATE ANALYZED~07/09/92 SAHPLE HATRIX~SOIL COHPOUND HETHOD BLANK DETECTION LIHIT CONCENTRATION (ug/kg) (ug/kg) Chloromethane 0.21 5.0 Bromomethane ND 5.0 Vinyl chloride ND 5.0 Chloroethane ND 5.0 Trichlorofluoromethane ND 5.0 1,1-Dichloroethene ND 5.0 Methylene chloride 2.7 10 1,1-Dichloroethane ND 5.0 trans-l,2-Dichloroethene ND 5.0 Chloroform O.11 5.0 1,2-Dichloroethane ND 5.0 1,1,1-Trichloroethane ND 5.0 · Carbon tetrachloride ND 5.0 Bromodichloromethane ND 5.0 1,2-Dichloropropane ND 5.0 Report Date GEOTEST Post Office Box gO911. LongBeach, Califomiag0809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUH~iARY ANALYSIS OF VOLATILE ORGANICS BY GC/HS EPA HETHOD 8240 GEOTEST CLIENT NAHEt GEORESEARCH GEOTEST PROJECT NO~ 924OO-17 GEOTEST PROJECT NAHE~ UNOCAL #3655 'DATE ANALYZED~07/09/92 SAHPLE HATRIX~SOIL , COHPOUND' HETHOD BLANK DETECTION LIHIT CONCENTRATION (ug/kg} (ug/kg} cis-l,3-Dlchloropropene ND 5.0 Trichloroethene N'D 5.0 Dibromochloromethane ND 5.0 1,1,2-Tr2chloroethane ND 5.0 Benzene MD 5.0 trans-l,3-dichloropropene ND 5.0 Bromoform ND 5.0 Tetrachloroethene 0.029 5.0 1,1,2,2-Tetrachloroethane ND 5.0 Toluene 0.084 5.0 Chlorobenzene ND 5.0 Ethylbenzene 0.028 5.0 m.p-X¥1enes ND 5.0 o-Xylene ND 5.0 1.3-Dichlorobenzene ND 5.0 1.4-Dlchlorobenzene ND 5.0 1,2-Dichlorobenzene ND 5.0 Checked and Approved Repot1; Da,e, An Environmental Monitoring and Testing Service .... QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF VOLATILE ORGANICS BY GC/HS EPA HETHOD 8240 GEOTEST CLIENT NAVEl GEORESEARCM GEOTEST PROJECT NOs 92400-17 GEOTEST PROJECT NAMEI UNOCAL #3655 'DATE ANALYZED~07/09/92 'SAMPLE MATRIX~SOiL CO~OUND ~C~ .... % ACCURACY Chloromethane 110 Vinyl chloride 114 1.1-Dlchloroethene 89 1.1-Dichloroethane 69 Chloroform 69 1.2-Dichloropropane 78 Eromoform 115 1.1.2.2-Tetrachloroethane 95 Toluene 101 Chlorobenzene 94 Ethylbenzene 87 Re po r t D a t e, ~.//J/~-~ __~ m~ ~ m m m mm _m i GEOTEST Post Office Box g0gll, LongBeach, Califomiag0809-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SuMMARy ANALYSIS OF VOLATILE ORGANICS BY GC/MS EPA METHOD 8240 GEOTEST CLIENT NAMEr GEORESEARCH GEOTEST'PROJECT NOt 92400-17 GEOTEST PROJECT NAMEr UNOCAL #3655 DATE ANALYZEDt07/09/92 SAMPL~ MATRIXtSOIL COMPOUND. MATRIX SPIKE MATRIX SPIKE % RECOVERY DUPLICATE % REPRODUCIBILITY 1.1-Dlchloroethene 103 71 Trtchloroethene 94 103 Benzene 93 92 Toluene 112 77 Chlorobenzene 99 98 Report Date.. ! GEOTEST An Environmental Monitoring Post Office E~OX 90911, Long Beach. Califomia 90809-0911 (310) 498-9515 (800) 624-5744 -and Testing Service LABORATORY REPORT GEORESEARCH DATE ~AH~LED s 07/02/92 1713 TULARE STREET, SUITE 113 DATE RECEIVEDs 07/02/92 FRESNO, CA 93721 DATE ADDITIONAL ANALYSES REQUESTED~ 07/06/92 DATE ANALYZED~ 07/09/92 SAMPLE MATRIX= SOIL ATTENTION= WARREN GROSS CLIENT ID ~ 92080 GEOTEST PROJECT NO.~ 924OO-17 ANALYSES= TITLE 22 METALS 'PROJECT NAME~ UNOCAL #3655 SAHPLE ID~ ' BG-5 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF METALS BY ICP EPA METHOD 6010 NETALS RESULTS DETECTION LIMITS (mE/kg) (mE/kg) Arsenic 3.6 3.0 Barium 58 0.02 Chromium 5.9 0.12 Copper 35 0.29 Lead 15 1.0 Nickel 2.9 0.20 Thallium 18 2.5 Zinc 65 O.11 ND - Not detected. Analyst~ SC Reviewed and Approved~ ~Report date~ This report pertains only to the samples investigated ~nd does not ,necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom addressed. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT G~ORS~SARCH DATE ~AHWhSD t 07/O2/92 1713 TULARE STREET. SUITE 113 DATE RECEIVEDt 07/02/92 FRESNO. CA 9372! DATE ADDITIONAL ANALYSES REQUESTEDt 07/06/92 DATE ANALYZEDt 97/99/92 SAMPLE HATRIXt SOIL ATTENTIONt WARREN GROSS CLIENT ID t 92080 . GEOTEST PROJECT NO.z 92400-17 ANALYSES~ TITLE 22 METALS PROJECT NAME~ UNOCAL %3655 SAMPLE IDt BG-10 2600 PIERCE ROAD BAKERSFIELD. CA ANALYSIS OF METALS BY ICP EPA METHOD 6010 METALS RESULTS DETECTION LIMITS (ag/kg) (ag/kg) Arsenic ND 3.0 Barium 44 0.02 Chromium 3.9 0.12 Copper 3.8 0.29 Lead ND 1.O Nickel 1.8 0.20 Thallium 15 2.5 Zinc 22 0.11 ND - Not detected. Analyst~ SC Reviewed and Approved~ Report This report pertains only necessarily apply to other apparently identical or similar aa[erials. This report is submitted for the exclusive use of the Client to whom It is addressed. An Environmenta! Monitoring and Testing Service -- QUALITY ASSURANCE/QUALITY CONTROL SUMHARY ANALYSIS OF HETALS BY ICP EPA ~ETHOD 6010 GEoTEST CLIENT NAME~ GEORESEARCH GEOTEST PROJECT NO~ 924OO-17 GEOTEST PROJECT NAME~ UNOCAL #3655 DATE ANALYZED~O7/09/92 SAMPLE MATRIX~'SOIL Elements · HETHOD BLANK DETECTION LI~IT (~q/kg) (mq/kq) Arsenic ND 3.0 Bariua ND 0.02 Chroaiu~ ND 0.12 Copper ND 0.29 Lead ND !. 0 Nicke 1 ND O. 20 Thallium ND 2. Zinc ND 0.11 Checked and Approved, Report Date, ~m m m m m m ~ GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF' NETALS BY ICP EPA METHOD 6010 GEOTEST CLIENT NAHE, GEORESEARCH GEOTEST'PROJECT NO, 924OO-17 GEOTEST PROJECT NAME, UNOCAL #3655 DATE ANALYZED,07/Og/92 SAMPLE MATRIX,SOIL Elements LCS ACCURACY % Arsenic 101 Barium 104 Chromium 103 Copper 108 Lead 105 Nickel 105 Thalliua 108 Zinc 107 Checked and Approved, . Report Date, ~//~/~ ~-- GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service -- QUALITY ASSURANCE/QUALITY CONTROL SUHHARY A~ALYSIS OF METALS BY ICP EPA HETHOD 6010 GEOTEBT CLIENT NAMEr GEORESEARCH GEOTEST PROJECT NOt 92400-17 GEOTBST PROJECT NAHEt UNOCAL #3655 DATE ANALYZEDtO7/09/92 SAMPLE MATRIXtSOIL EleRents. MATRIX SPIKE MATRIX SPIKE RECOVERY DUPLICATE REPRODUCIBILITY % Arsenic 100 lO2 Barium 105 161 Chroutuu 99 101 Copper 105 101 Lead 101 lee Nlckel. 103 101 'Thalltun 105 101 Zinc 106 101 Checked and Approved~ --' Re~or~ Da~e, GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT GEORESEARCH DATE SAMPLED : 07/02/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: 07/02/92 FRESNO, CA 93721 DATE ANALYZED: 07/03/92 SAMPLE MATRIX: SOIL ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST PROJECT NO.: 92400-17 ANALYSES: 418.1 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT BY INffRARED SPECTROMETRY EPA METHOD 418.1 SAMPLE ID RESULTS DETECTION LIMIT (mg/kg) (mg/kg) COMPOSITE 410 10 (SPA, SPB, SPC, SPD) ND - Not detected below indicated limit of detection.~//~.~./ Analyst: DR Reviewed and Approved: Report date: ~'h-is report pertains only to the sampI~' 'investigated a~ ..... dOes not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. __~ I ~ I GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Se~,ice QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF TOTAL RECOVERABLE PETROLEUM HYDROCARBONS EPA METHOD 418.1 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NOs 92400-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: 07/03/92 SAMPLE MATRIX: SOIL ELAP certification #1655 Analyses method: 418.1 CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) METHOD BLANK ND 10 ACCURACY % LABORATORY CONTROL STANDARD 110 70 - 130% % ACCEP:~AqTL-E-~A~GE RECOVERY % MATRIX SPIKE 118 70 - 130% % ACCEPTABLE RANGE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 100 70 - 130% Checked and Approved: Report Date: ~ k GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY REPORT GEORESEARCH DATE SAMPLED : 07/02/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED= 07/02/92 FRESNO, CA 93721 DATE ANALYZED: 07/02/92 SAMPLE MATRIX: SOIL ATTENTION: WARREN GROSS CLIENT ID : 92080 GEOTEST pROJECT NO.: 92400-17 ANALYSES: 418.1 PROJECT NAME: UNOCAL #3655 LOCATION: 2600 PIERCE ROAD BAKERSFIELD, CA ANALYSIS OF HYDROCARBON CONTENT BY INffRARED SPECTROMETRY EPA METHOD 418.1 SAMPLE ID RESULTS DETECTION LIMIT (mg/kg) (mg/kg) LF5E-5 40 10 LF5-7 ND 10 LF5W-5 ND 10 LF7-3 16 10 LF8-6 ND 10 LF9-5 ND 10 Analyst: DR Reviewed and Approved: ~"/~//~,~.~ Report date: This report pertains only to the samples investigated and "d6es not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF TOTAL RECOVERABLE PETROLEUM HYDROCARBONS EPA METHOD 418.1 GEOTEST CLIENT NAME: GEORESEARCH GEOTEST PROJECT NO: 924OO-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED: 07/02/92 SAMPLE MATRIX: SOIL ELAP certification #1655 Analyses method: 418.1 CONCENTRATION DETECTION LIMIT (mg/kg) (mg/kg) METHOD BLANK ND 10 ACCURACY % LABORATORY CONTROL STANDARD 98 70 - 130% % ACCSP~ABL~'-~GE RECOVERY % MATRIX SPIKE 101 70 - 130% % ACCEPTABLE RANGE REPRODUCIBILITY % MATRIX SPIKE DUPLICATE 103 70 - 130% Checked and Approved: Report Date: ' EOTEST 3960 Gilman $1reel Long Beech, CA. 90815 GEOTEST '~- Telephone: (310) 498-9515 (800) 624-5744 CHAIN-OF-CUSTODY RECORD PROJECT NO: -.. ' DATE PAGE , ) ur // PROJECTNAME_ UNOCAL ~ ~' - . SPECIAL HANDLING SAMPLER'S SlGNATURE.~ ~ uJ " SAMPLE NO. DATE TIME LOCATION ~ ~ ~ 'S~(~INATURE SIG~I~RE - SIGNATURE PRINTED N~E TIME PRINTED NAME TIME '~'OMPANY - COMPANY "-COMPANY / ~MPANY f ~/~ COMPANY / COMPANY r GEOTEST · 3960 Gilman Street GEOTEST c/':Z..I-/oo- I ? ' Long Beach, CA. 90815 PROJECT NO: ~ Telephone: (310) 498-9515 (800) 624-5744 CHAIN-OF-CUSTODY RECORD DATE '7-"t'-gZ PAGE / OF PROJECT NAME . [J ~ o ¢/~ L. ~ t~ ~'~" [ METHODS SPECIAL HANDLING ADDRESS 24,00 F,~','~c ~J. /.~'1]'¢~'~/CI C,,~ ~ .: SAMPLER'S SIGNATURE z Z PRINTED NAME ~ "J u~ m - q tu z CLIENT PROJECT NO. ,,, x -- PROJECT MANAGER ~ '~' ~ ~ h u. n 0 SAMPLE NO. DATE TIME LOCATION ~- ~. ~ . ~ O ?~ECl U~~ DATE r~ ~NQUISHED BY DATE REI-INQUISHED BY DATE /'~ ,, ..., ,~/~ 7/4~o,l_ //~.~ ~.¢~. . I RECEIVED'ON SAMPLE CONDITION~' ' ICE' '".~ PRINTED NAM6,~ TIME PRIN~I NAME TIME PRIN~D/,NA~E ~ TIME (",,~<.<2/'Z..,. ~'"¢~rr'~: L/.(,'MC-.-- ¢-'-/"~6 7'-,..- PROJECT COMMENTS COMPANy ~ COMPANY ..."COMPANY . DATE~ DATE~i~I ~E, RECEfVED aY ( u SIGN~TO~JE [ SIGNATURE~ SlGN~] ~ V I '~/ ~ v,',,' /~/C.} PRINTED NAME/ ~--'-'" PRINTF-.J ~{l~l~ % .,.-~_~J'~. PRINT/ED NAME TIME TIME TIME COMPANY COMPANY COMPAN~r~ / 3960 Gilman $1ree! I Long Beach, CA. 90815 GEO'FEST ~ Telephone: (310) 498-9515 (800) 624.$744 CHAIN-OF-CUSTODY RECORD PROJECT NO: PROJECT NAME ~~' '-----'-- DATE 7-?...--~7,.. PAGE ....L OF .--..L_ _ADDRESS.. ~ O~ /~~ METHODS SPECIAL HANDLING SAMPLER'S SIGNATURE _~J~ _~'~. PRINTED NAME __ C/.,,%'1 ./~ CLIENT PROJECT "O... (1) ~ ~::~(~) ' --; --'~ - PROJECT MANAGER ~.¢, SAMPLE NO. DATE TIME LOCATION .CPA RELINQUISHE BY ED BY RELINQUISHED BY SAMPLE COND RECEIVED ON ICE CHAIN OF CUSTODY SEAL IE PRINTED NAME PROJECT COMMENTS PRINCe NA~. ~ ~C¢ ~ PRINTED NAME COMPANY COMPANY COMPANY ® ;~ ~1~ TELEPHONE (310) 698-0081° FAX (310) 693-0947 '- "'" 2 RECEIVED GEO August ?.4, 1~2 PROJEC'[ # .... / Lionel Rojo Geotest 3960 Gilman Street Long Beach, CA 90815 Dear Mr. Rojo: Re: Project No.: 92400-17 File No.: 14583 Enclosed is the result of the soil analysis for your. Project No.: 92400-17. ^ Copy of the laboratory procedure has been included for your reference. Should you have any questions or comments, please contact Roger Lucich, Environmental Supervisor, or larry Kunkel, Director of Operations, at the above number. We appreciate the opportunity to be of service and trust these data will prove beneficial in the development of this project. Sincerely, PETROL~EUM TESTING SERVICE, INC. / P eter T.'~Schuyler President PTS:rdl Encl. PETROLEUM TESTING 'SERVICE, INC. File No.: .14583 l~ge 1 Date: August 1992 Project Name: N/A Project No.: 92400-17 Client: Geotest State: California LABORATORY PROCEDURE Specific Gravity of Soil ASTM D 854-83 1. Fill a clean and dried volumetric flask with deionized water and weigh to the nearest 0.01 gram. 2. Sub-sample approximately 50 grams of material at specific interval and oven dry at ll0°C. Allow sample to cool to room temperature and weigh to the nearest 0.01 gram. 3. Place sample in the dried calibrated volumetric flask taking care not to lose any material. 4. Add deionized water to fill the flask about three-fourths full and subject contents of the flask to a partial vacuum to remove any trapped air. 5. Fill the flask with deionized water and dry the outside of the flask with a clean cloth. 6. . Measure the weight of the flask and it's contents and the temperature in degrees Celsius. 7. Calculate and report specific gravity of soils. PETROLEUM TESTING SERVICE, INC. File No.: 14583 Page 2 Date: August 1992 Project Name: N/A Project No.: 92400-17 Client: Geotest State: CaIifornia Table 1 SOIL SPECIFIC GRAVITY* SAMPLE SPECIFIC GRAVITY I.D. OF SOIL AT 20°C Composite 2.671 * ASTM D 854-83 ~ Lcd,,,.. -.h, c/ 5 .... JEC'. :' -- .... ~ Telephone:(310) 498-9515 (800) 624-5744 CHAIN-OF-CUSTODY RECORD DATE ~Cl~-- PAGE PROJECT NAME ~ ~-J~D C) ~ ~ METHODS 'SPECIAL HANDLING ADDRESS ~ ~ ~ Z SAMPLER'S SIGNATURE Z PRINTED NAME PROJECT MANAGER ~ ~ ~ ~ ~ ~ 8 0 SAMPLE NO. DATE TIME LOCATION U~,~~~t~~ DATE =RELINQUISHE0'BY DATE .RELINQUlSHEDBY DATE RECEIVED ON ICE YES~O SIG~' ~/ - ~- . SIGNATURE SIGNATURE CHAIN OF CUSTODY SEAL YES~O PRI~ED NA~E _ ~ TIME PRINTED NA~E TIME PRINTED NAME TIME ~ (~% ~ PROJECT COMMENTS CO Y ' COMPANY COMPANY ~ RECEIVED BY DATE ~ RECEIVED, BY DATE ~ RECEIVED BY (LAB) DATE SI~{ATUR~__~ SIGNATURE SIGNATURE ~~ME ~ PRINTED NAME TIME ~ TIME TIME PRINTED NAME I~I COMPANY COMPANY COMPANY ................ OR I.UAL ....... ........... ASSOCIATED LA ORATORF_S CLIENT GeoTest (4748) LAB NO. .G34115 Attn: Bill Tanner 3960 Gilman St. REPORTED 07/24/92 Long Beach, CA 90815 SAMPLE Soil RECEIVED 07/17/92 Projact ~92400-i7 IDENTIFICA~ON Composite of SPA, SPP, SPC, SPD Date Collected 07/15/92 BASED ONSAMPLE As Submitted Density 95.4 lb/ft3 Total Organic Halogens < 2.5 mg/kg ASSOCIATE~EABO~TO, RIES, by: Edw~-~' ~. B~h~re, . Ph. D. ~ Vice President' ESB/ql NOTE: Unless notified in writing, all samples will be discarded by appropriate disposal protocol 30 days from date reported. " TESTING & CONSULTING Chemical · The reports of the Associatecl Laboratories ace confiaential property of our clients aha MicTob~olocjical · may not De repro~luced or usecl for pu01ication in part or in full witl~out our written permission. This is for the mutual protection of tne public, our clients, anti ourselves. ~rll/~ro/3mer)~,/ · An Environmental Monitoring and Testing Service LABORATORY R B P O R T GEORESEARCH DATE SAHPLBD , 07/02/92 XTX3 TULARE STREET, SUITE X~3 DATE RECBZVBDt 07/02/92 FRESNO, CA 93721 DATE ANALYZEDI O7/21/92 SAHPLE HATRIXt T C L P EXTRACT ATTENTIONt WARREN GROSS CLIENT ID ~ 92080 GEOTEST PROJECT NO.t 924OO-17 AMALYSESt SULFIDE PROJECT NAHEt UNOCAL j3655 2600 PIERCE ROAD BAKERSFIELD. CA AHALYSZB OF TCLP IXTRACT FOR SULFIDE BY B~AMBTHOD3?6.2 SAHPbE ID ~ESULTS DETECTION LIMIT (mE/L) (mg/L) COHPOSITE (SPA, SPB, SPC, SPD) ND e. OO5 ND - Not detected below indicated limit of detection. Analystt VN Reviewed and Approvedt Report dater ' T~ls report pertains ~n"EIy Co '~he sampXes' in~estxga~d a~d'-d'5%-~ not necessarily apply to other apparently identical or siuilar ~aterials. This report is sub~itted for the exclusive use of the client, to whou it .is addressed. An Environmental Monitoring and Testing Service LABORATORY REPORT GEORESEARCH DATE SAHPLED t 07/02/92 1713 TULARE STREET, SUITE 113 DATE RECEIVEDt 07/02/92 FRESHO,'CA 93721 DATE A#ALYZEDt 07/21/92 SAHPLE MATRIXt SOIL ATTENTIONt WARREN GROSS CLIENT ID t 92080 GEOTEST PROJECT NO.t 92400-17 ANALYSES~ CYANIDE PROJECT NAMEr UNOCAL 93655 2600 FIERCE ROAD BAKERSFIELD, CA A~ALYSIS OF CYANIDE BY EPA METHOD 9OIO SAMPLE ID RESULTS DETECTION LIMIT (ag/kg) (ur/kg) COMPOSITE (SPA, SPB, SPC, SPD) ND 0.25 ND - Eot detected below Indicated limit of Analystt VN Reviewed and Approvedt Report dace, necessarily apply to other apparently identical or statlar materials. This report ts submitted ~or ~be exclusive use o~ Ibc ts addressed. GEOTEST ' An Environmental Monitoring POSt Office Box 90911, Long Beach, California 90~)9-0911 (310) 498-9515 (800) 624-5744 and Testing Se~ce LABORATORY RB PORT " *'GEORESEARCH DATE SAMPLED t 07/02/92 1713 TULARE STREET, SUITE 113 DATE RECEXVEDt 07/02/92 FRESNO, CA 93721 DATE AJlALYZ~Dt O7/21/92 8AMPLE HATRIXt SOIL ATTENTIOHI WARREN GROSS CLIENT ID t 92080 GEOTBST PROJECT NO.t 924OO-17 ANALYSES8 pH PROJECT #AHEt UHOCAL J3655 LOCATIONt 2600 PIERCE ROAD BAKERSFIELD, CA LABORATORY SAMPLE ID ~ESULTS COMPOSITE (SPA, SPB. SPC, SPD) 7.2 ND - NOt detected below indicated limit of Analyst~ VN ReViewed and Approvedt ////Z// '/~/" Report date t// necessarily apply Co other, apparently identical or similar ~aterials. This report is subuitted for the exclusive use of the client to who~ it is addressed. ,~,--A--.-.A--Ui~.(,~ii~..~i Post Office Box 90911, Long Beach, California 9080g-0911 (3~ 0) 498-9515 (800)624-5744 An Environmental Monitoring - and Testing Service LABORATORY REPORT GEORESEARCH DATE SAMPLED 8 07/92/92 1713 TUI~RE STREET, SUITE 113 DATE RECEIVEDs 07/02/92 FRESNO, CA 93721 DATE ANALYZEDt 07/22/92 SAMPLE MATRIXs TCLPEXTRACT ATTENTIONs,WARREN GROSS CLIENT ID t 92080 GEOTEST PROJECT NO.t 924OO-17 ANALYSESt 8240 SAMPLE IDt COMPOSITE 'PROJECT NAMEr UNOCAL #3655 (SPA, SPB LOCATIONt 2600 PIERCE ROAD SPC, SPD) BAKERSFIELD, CA AIALYZIS OF TCLP EXTRACT FOR VOLATIL~ ORGA]fICS BY GAS CflROHATOGRAPHY! MASS SPECTROMETRY EPA HBTflOD 824® COMPOUNDS RESULTS DETECTION LIMIT TC LIMIT (mE/L) Carbon tetrachloride ND O.OO1 0.5 Chlorobenzene ND 0.OO1 1OO Chloroform ND O.OO1 6.0 1.4-Dichlorobenzene ND O.OO1. 7.5 1,2-Dlchloroethane ND O.OO1 0.5 1,1-D~chloroethene ND O.OO1 0.7 Tetrachloroethene ND O.OO1 O.7 Trichloroethene ND O.OO1 0.5 Vinyl chloride ND 0.OO1 0.5 Ben=ene ND O.OO1 0.5 Meth¥1eth¥1ketone ND 0.005 200 ND - Not detected below indicated limit of detection. Analystt PT, FH Reviewed and Approvedt Report date~ This report ~-~-~W bn-~f¥ to tee samp"l~---~-~eStigat~d and -dWe~ no= necessarily apply ~o o~her apparently identical or similar materials. Th~s repor~ is submitted for ~he exclusive use o~ ~he clien~ ~o whop addressed. An Environmental Monitoring · and Testing Set. ce QUALITY ASSURANCE/QUALITY CONTROL SUHHARY ANALYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GC/HS EPA HETHOD 8240 GEOTEST CLIENT NAHEt GEORESEARCH GEOTEST PROJECT NOt 924OO-17 GEOTEST PROJECT NAHEI UNOCAL #3655 DATE ANALYZED~O7/22/92 SAHPLE HATRIXsTCLP EXTRACT COHPOUND HETHOD BLANK DETECTION LIHIT CONCENTRATION (tg/L) . (tg/L) Carbon tetrachlortde ND O.OO1 Chlorobenzene ND 0.001 Chloro~or~ ND 0.001 1.4-Dtchlorobenzene ND 0.001 1.2-Dtchloroe~hane ND 0.001 l,l-Dtchloroethene ND 0.001 Tetrachloroethene ND 0.001 Trlchloroethene ND 0.001 Vinyl chloride ND 0.001 Benzene ND 0.001 He~hylethylke~one N~~ 0.005 Checked and Approved: Report Da~e, GEOTEST A~ Environmental Monitoring Post Office Box 90911, Long Beach, C.,alifomia 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service OUALITY ASSURA#CE/OUALITY CONTROL SuHHARy ANALYSIS OF TCLP EXTRACT FOR VOLATILE ORGANICS BY GC/HS EPA HBTHOD 8240 GEOTEST CLIENT #AHE~ GEOREEEARCH GEOTEST PROJECT NO~ 924~e-17 GEOTEST PROJECT NAltE~ UNOCAL 93655- DATE ANALYZEDtO7/22/92 SAHPLE HATRIX~TCLP EXTRACT % ACCURACY Vlnyl chloride 90 1,1-DlchloroeChylene 90 Chloroform 94 Chlorobenzene 99 Checked and Approved~ / An Environmental Monitoring and Testing ~emce QUALXTY AZSURAHCE/QUALITY COETROL AMALYSXS OF TCLP BXTRACT FOR VOLATILE ORGAHICS BY GC/H~ EPA HETHOD 8240' GEOTEZT CLZE#T #AHEt GEORESEARCH GEOTEST PROJECT EOt 924ee-17 - GEOTEZT PROJECT EAHEt U#OCAL #3655 DATE A#ALYZEDteT/22/92 SAHPLE HATRIXtTCLP EXTRACT % RECOVERY DUPLZCATE % REPRODUCZBILITY 1,1-Dlchloroeth¥1ene 85 94 Chlorobenzene 92 104 Checked and Appz'ovedt Report Dar. et/ GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY BB P O RT GEORESEARCH DATE SAMPLED , 07/02/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED, 07192/92 FRESMO, CA 93721 DATE ANALYZED, O7/17/92 SAMPLE MATRIX, TCLPEXTRACT ATTENTION~ WARREN GROSS CLIENT ID , 92080 GEOTEST PROJECT NO., 92956-O1 ANALYSES8 8270 PROJECT NAME~ UNOCAL #3655 SAMPLE ID~ COMPOSITE LOCATION* 2600 PIERCE ROAD (SPA, SPB BAKERSFIELD. CA SPC. SPD) ANALYSIS OF TCLP EXTRACT FOR 5F, I~-VOLATILE COHL~OUIDS BY G C/MS EPA'METHOD 8270 COMPOUND RESUbTS DETECTION ~IMIT (mq/h) (mq/L) o-Cresol ND 1.0 m~Cresol ND 1.0 p-Cresol ND 1.0 PenCe chlorophenol ND 1.O 2.4.5-Trlchlorophenol ND 1.O 2,4,6-Trlchlorophenol ND 1.0 2,4-Dlnltrotoluene ND Hexachlorobenzene ND 1.0 Hexachlorobutadiene ND 1.O Hexachloroethane #D 1.o Nttrobenzene ND 1.e Pyrldlne ND 1.0 Analyst, PT, FH RevieWed and Approved, /~,/"/' Report Date, '~/~/~ This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials. This report is submitted for the exclusive use of the client to whom it is addressed. GEOTEST Post Office Box g0911, LongBeach, Califomiag080g-0911 (310)498-9515 (800)624-5744 An Environmental Monitoring and Testing Sen~ice QUALITY ASSURANCE/QUALITY COMTROL SUHHARY ANALYSIS OF TCLP EXTRACT'FOR SEMI-VOLATILE COMPOUNDS BY GC/MS EPA HETHOD 8270 GBOT~ST CLX~MT MAi~ GEORESEARCH GEOTEST PROJECT MOt 92400-17 GEOTEST PROJECT NAHEt UNOCAL ~3655 DATE ANALYZEDt97/17/g2 · SAMPLE HATRIXtTCLP EXTRACT COMPOUND HETHOD BLANK DETECTION LIMIT CONCENTRATION (mg/L) (mg/L) o-Cresol MD ' l. 9 p-CresoX ND 1.9 Pen~a chXorophenol. ND 1.9 2,4,5-Trlchlorophenol ND 1.9 2,4,6-Trtchlorophenol ND 1.9 2,4-DlntCrotoluene ND 1.9 Hex&chlorobenzene ND 1.9 Hexachlorobutadtene ND 1.9 Hexachloroe~h&ne MD 1.9 N~robenzene MD 1.9 Pyr~d~ne ND 1.9 Checked and Approvedt Report. Date, GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUHHARY ANALYSIS OF TCLP EXTRACT FOR SEMI-VOLATILE COHPOUNDS BY GC/HS EPA HETHOD 8270 GEOTEST CLIENT NAMEr GEORESEARCH GEOTEST PROJECT NOt 924OO-17 GEOTEST PROJECT NAHEt UNOCAL #3655 DATE ANALYZEDtO7/17/92 .SAHPLE HATRIXtTCLP EXTRACT COHPOUND LCS % ACCURACY Hexachlorobenzene 74 2040$-Trlchlorophenol 85 Pentachlorophenol 57 Checked and Approvedt GEOTEST An Environmental Monitoring Post Office BoX 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service 0UALITY ASSURANCE/0UALITY CONTROL SUHHARY ANALYSIS OF TCLP EXTRACT FOR SENI-VOLATILE CONPOUNDS BY GC/HS EPA HETHOD 8270 GEOTEST CLIENT ~AHSt GEORSSBARCH GEOTEST PROJECT NO8 GEOTEST PROJECT #AHE8 UMOCAL #3655 DATE ANALYZED~O7/17/92 .,SAHPLE HATRIXsTCLP EXTRACT COHPOUND HATRIX SPIKE MATRIX SPIKE % RECOVERY DUPLICATE % REPRODUCIBILITY Pentachlorophenol 57 136 Checked and Approved t ~~///~~ GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service LABORATORY RB PORT 1713 TuLARE STREET, SUITE 113 DATE RECEXVEDt eT/e2/92 FRESHO, CA 93721 DATB AHALYZEDt 07/20/92 SAHPLE HATRXXs TCLPBXTRACT ATTEMTIO#t NARREM GROSS CLIE#T ID t 92080 GEOTEST PROJECT HO.t 92400-17 AHALYSESt HETALS PROJECT HAHEt U#OCAL #3655 SAHPLE ~Dt COHPOSITE 26es PIERCE ROAD (SPA, SPB BAKERSFIELD, CA SPC, SPD) AIfALYS[S OF TCLP EXTRACT FOR HETALS METALS RESULTS DETECTIOH LIHITS TC LIHIT (eg/L) (ag/L) Arsenic O.914 e.e6 5.0 Barium 2.4 l.e lee C&dn~un e.c~5 e.ee3 Chromium HD 1.e 5.9 Lead aD e.e2 5.e Selenium e.e4e e.e3 silver e.es e.ee4 NeEcur¥ e.eee2 e.eeel MD - ~o~ detected. ~/~/~/,~ Analystt PT, FH Reviewed and Approvedt o Report dater ~is report per-~8 o~ly to ~h-~- samp-l~'~---fh-~-t~'~-~'~- a--~-~'--d~-~ .... ~'~ necessarily apply ~o o~her apparently iden~ica~ or similar ma~eria~s. This report ~s subRit~ed [or the exclusive use o~ the client to whom ~t ~s addressed. GEOTEST Afl Environmental Monitoring POst Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURAIfCE/QUALITY CONTROL SUHHARY ANALYSIS OF TCLP EXTRACT FOR HETALS GEOTEST CLIENT NAHEs GEORESEARCH GEOTEST PROJECT #08 924ee-17. GEOTEST PROJECT NAHEt UNOCAL #3655 DATE A#ALYZED,eT/20/92 SAMPLE HATRIXtTCLP EXTRACT EleBents METHOD BLANK DETECTION hIHIT (mr/L) Arsenic ND o. O6 Barium ND 1.O Cadmium ND O.eO3 Chromium ND 1.0 Lead ND O.O2 8eZenlum #D e.e3 Silver ND o.0e4 Hercu~¥ ND 0.0001 Checked and Approved, ~//~7~7/ .................. ' ....................... GEOTEST Post Office Box gO911. LongBeach. Califomiag08(O-0911 (310) 498'9515 (800) 624-5744 An Environmental Monitoring and Testing Service QUALXTY ASSURAHCB/QUALZTY COHTROL'SUHHARY A#ALYSXS OF TCLP EXTRACT FOR I, IBTAL~ GEOTEST CLZBHT #Alit GEORES~ARCH GEOTBST PROJECT MOt 92400-17 GBOTBST ~ROJBCT MAHEt UHOCAL 03655 DATE AHALYZEDte?I20/92 6AHPLE HATRZXtTCLP EXTRACT Eleuents LCS ACCURACY Arsenic Barium 92 Cadmium 100 Chromium 93 Lead 98 ~Selentum Silver 101 Nercury 102 Checked and Approvedt .~~ Report Da~e8 ~ GEOTEST Post Office Box gOg11. LongBeach, Galiforniag080g-og11 (310)498-g515 (800)624-5744 An Environmental Monitoring and Testing Service QUALITY ASSURA~CE/@UALITY CO#TROL 8UHHARY AMALYSZS OF TCLP '~XTRACT FOR HETALS GEOTEST CLIENT JlAHEI GEORESEARCH GEOTEST PROJECT NOI 924ee-17 GEOTEST PROJECT NAHSt UNOCAL t3655 DATE ANALYZEDse?/20/92 SAHPLE HATRIXt TCLP EXTRACT Elements HATRIX SPIKE HATRIX SPIK~ RECOVERY DUPLICATE REPRODUCIBILITY % % Arsenic lee 99 B&rtum 87 116 Cadmlua le2 102 Chromlum le0 97 Lead 112 97 Selenium lee lee Silver 117 95 Hercury CheCked and Approved mm, An Environmental Monitoring and Testing Se~ice L ~ B 0 R & TO R Y R E P O R T GEORESEARCH OATE SANPLED' = ~7/e2/92 1713 TULARE STREET, SUITE 113 DATE RECEIVED: e7/02/92 FRESNO, CA 93721 DATE ANALYZED: ~7/24/92 SANPLE NATRIX: WATER ATTENTION: WARREN GROSS CLIENT ID : 92ese GEOTEST PRO3ECT NO.= 924ee-17 ANALYSES: 808~ SA#PLE ID: CONPOSITE PROJECT NANE: UNOCAL #3655 (SPA, SPB LOCATION: 26ee PIERCE ROAD SPC, SPD) BAKERSFIELD, CA OR6ANOCHLORINE PESTICIDES ~#D PCBS BY EC/ECD EPA #ETHOD CONPOUNOS RESULTS DETECTION LINIT (ug/C) (ug/L) a-DHC ND ~.~4 b-BHC NO 0.e4 g-BHC ND e.~4 d-BHC ND ~.~4 Heptachlor ND e.e4 Aldr£n ND e.e4 Heptachlor epox£de ND e.e4 Endosulfan I NO e.e4 4,4-DOE ND e.e4 Dieldrin ND e.e4 Endrin NO e.e4 Endosulfan II ND e.e4 4,4-DOD ND e.e4 Endrin aldehyde ND e.e4 EndosuZfan Sulfate ND e.e4 NeChoxychlor ND e.e4 Toxaphene ND e.ze .Chlordane ND e.ze NO - Not detected below indicated limi: of de:ec[ion. Analyse: OS RevLe~ed and Approved: Report da Ce= This report pertains only to the samples investigated and does noL necessarily app[y to o~her apparently identical or This report £s subm£tted for the exclusive use of the is addressed. GEOTEST An Environmental Monitoring Post Office Box 90911, Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 and Testing Service QUALITY ASSURANCE/QUALITY CONTROL SUMMARY ANALYSIS OF ORGANOCHLORINE PESTICIDES AND PCBS BY EC/ECD .... EPA METHOD 8e8~' GEOTEST CLIENT NAME: 6EORESEARCH GEOTEST PROJECT NO: 924ee-17 GEOTEST PROJECT NAME: UNOCAL #3655 DATE ANALYZED:eT/24/92 SAMPLE MATR[X:WATER COMPOUND METHOD BLANK DETECTION LIMIT CONCENTRATION (ug/L) (ug/L) a-BHC ND ~. 04 b-BHC ' ND e. 04 g-BHC ND d-BHC ND e .e4 Hep t:achlo r ND ·. e4 Aldr[n ND e.e4 HeptachLor epox~Lde ND e.e4 Endosul fan I NO e.e4 4 , 4-DDE ND e. e4 D£eldr£n ND e.04 EndrLn ND e.e4 Endosulfan IT ND e.e4 4,4-ODD . ND e.e4 EndrLn aldehyde . ND e.e4 EndosuLfan SuLfate NO e.e4 Mer. hoxychLor ND e. e4 Toxaphene ND e.ze Chlordane ND Checked and Approved: Report:DaCe: GEOTEST Post Office Box 90911. Long Beach, California 90809-0911 (310) 498-9515 (800) 624-5744 An Environmental Monitoring and Testing Service QUALII'Y ASSURANCE/QUALITY CONTROL SUHNARY ANALYSIS OF ORGANOCHLORINE PESTICIDES AND PCBS BY EC/ECD EPA NETHOD 8080 GEOI'EST CLIENT NAHE: GEORESEARCH GEOTEST PROJECT. NO: 92490-17 6EOTEST PROJECT NAHE: UNOCAL #3655 DATE ANALYZEO=07/24/92 SAHPLE HAI'RIX:WATER '~"~MPO'UNO LCS · ACCURACY a-BHC 108 b-BHC 81 g-BHC 75 I d-BHC 91 Heptachlor 94 Aldrin 101 Heptachlor epoxide 108 Endosulfan I 119 4,4-ODE 135 Oieldr£n 142 Endr£n 94 Endosulfan II 144 4,4-000 ~ 127 Endrin aldehyde 31 Endosulfan Sulfate 108 ~qethoxychlor 102 Checked and Approved: _ Report Date: ~,~~ GEOTEST Post Office Box gOg11. LongBeach, California90809-0911 (310) 498'9515 (800) 624-5744 An Environmental Monitoring and Testing Service QUALII'Y ASSURANCE/QUALiTY CONTROL SUMMARY ANALYSIS OF ORGANOCHLORINE PESTICIDES AND PCBS BY EC/ECD EPA METHOD ease GEOTEST CLIENT NAME: GEORESEAReH GEOTEST PROJECT NO: 92400-17 GEOTEST PROJECT NAME: UNOCAL #3655 OATE ANALYZED:D7/24/92 SAMPLE MATRIX:WATER ~'O'~"poUND M~T~-i~"~'P'"'["~E ~ RECOVERY DUPLICATE · REPRODUCIBILITY a-BHC 35 37 b-BHC 33 36 g-BHC 47 48 d-BHC 104 95 HeptachIor 72 67 Aldrin 57 57 Heptachlor epoxide 75 44 Endosulfan I 39 34 4.4-DDE 78 74 Dieldrin 56 52 Endrin 69 52 Endosulfan II 92 85 4,4-DDD 59 57 Endrin aldehyde 26 23 Endosulfan Sulfate 58 52 Nethoxychlor 61 54 Report Date= 2///~~ APPENDIX E SOIL DISPOSAL FORMS U23655.LFRO10593F4 O :O N'oN.HAZARDOUS WASTE DATA FORM UNOCAL Marketing NAME EPA I ,.o. C i:x p p i&l2 ~ 514 5 ADDRESS Site:2800 Pierce Rd., ~ake=s~e[d, CA c,w.s~.z~P San Ramon, Ca. 94583 S~a~on 03655 Sob Bous[ PHONENO ~5[0,277--2368 ~pE: ~ TANKmucK X~ OUMPmucK ~ ORUMS ~ CAR~ONS ~ OmaR. Removal of underground tank WASTEOESCRiPTio~.Oi[ ~ith Gas and Diesel GENERATINGPR~ESS. COM~NENTS OF WASTE PPM % COM~NENTS OF WASTE PPM ~ Soil ~99.9 Gasol ina <0.1 6 Diesel <0.1 7 3. HANOUNG~,STUCT'ONS: Acceptance H-92-N Unocal Station 03655 'Bob Bous~ THE WASTE AS DESCRIBED IS 10~ ~O 6R PRINTED FULL NAME i SIGNatUrE ...... Dillard Trucking, Inc. Jobtt1431/30 EPA I,.o. C A D 9 P. O. Box 218 ADDRESS ,. SERVICE ORDER NO.. / PICK UP DATE EPA I - Lzidlzw Environmental Services, Inc. ~o C A D DIS~SAL METRO0 AOO,~SS 2500 Lokern Road ~ t~NO¢'LL ~ O~HER Button~llo~, Cel~fornis 93206-0787 CI~. STATE. ZIP gGO 5~-7199 ~ OR PRIN~D FULL NAME & SlG~URE DATE RT/CO .WO~ NONE ] O~SCREPANCY CiO 5 8515 NON-HAZARDOUS WASTE DATA FORM UNOCAL Marketing NAME P. O. Box 5155 ,.o. C A D 9 8 2 0 5 ,. Sit. e:2800 Pierce Rd., Bakers£ield, CA San Ramon, Ca. 94583 Station #3655 Bob Boust 510 277-2368 CITY. STATE. ZIP PHONE NO. I I CONTAINERS: N~ 3 ~(~ ~10 VOLUME WEIGHT TANK DUMP TYPE: [] TRUCK X~ TNUCK [~ DRUMS [] CARTONS OTHER Removal of underground Soil with Gas and Diesel tank WASTE DESCRIPTION GENERATING PROCESS COM~NENTS OF WASTE PPM % COMPONENTS OF WASTE PPM Soil 99.9 Gasoline <0. I 6 Diesel <0.1 3 7 Neutral PROPERTIES: DH ~LIO ~ UOUID ~ SLUDGE ~ SLURRY ~ OTHER Acceptance M-92-N Unocal S~a~ion ~3655 Bob Bous~ HANDI.ING INSTUCTIONS: THE WASTE AS DESCRIBED IS 10~ .~ WPEO OR ~'NTEO FULL NAME i SIGNATURE DaTE Dillard Trucking, Inc. JoblllA31/30 EPA[ C A D 9 8 P. O. Box 218 AODRE~ SERVICE ORDER NO. Byron Californza 94514 TR~ UNIT. I.D. NO ~ ~ ~PEO OP PRINTED FULL NAME & SIGNATURE DATE Laidlaw Environmental Services, Inc. to. C A D 9 8 0 6 7 5 2 - 6 DIS~SAL METHOD ~onEss 2500 Lokern Road ~' LANDFILL ~ OTHER Buctonwillow, California 93206-0787 .-' CI~. STATE. ZIP 800 5-~-7199 ~P~OR PRINTED FULL NAME & SIGNAT~E / DATE cio mT/co HWOF NONE DISCREPANCY ' NON-HAZARDOUS WASTE DATA FORM / UNOCAL Marketing NAME " EPA F P. O. Box 5155 r0. A D 9 8 2 £! 5 ~ ~ 6 I ADDRESS NO. I I I I I I I I I Site:2800 Pierce Rd., Bakersfield. CA t13655 Bob BousC510 277-2368 .' ' , , --~' ~--"t - ""'/'--"~' PHONE NO -.,,' ,. - .-,- :; ·; ~ ,...- / ~- ..~.b.l..., >~..~, 0 CONTAINERS: NO. VOLUME WEIGHT I-" ~,., / r- Z TYPE: [] TANK" OUlv~3 TRUCK X~]TI4UCK I~ DRUMS I~1 CARTONS I~ OTHER Removal o~ underground tg Soil with Gas and Diesel tank .~ I WASTE DESCRIPTION ' GENERATING PROCESS ? :~:2 ,.' COMPONE.T? 0r.~?/.~>9' PPM , COMPO.ENTS OF WASTE PPM C3 / ~j ~. Soil 99.9 ~J Gasoline <0.1 ~ Diesel <0.1 133 4. O Neutral I" PROPERTIES: DH XE~SOLID [] LIOUID [] SLUDGE [] SLURRY [] OTHER Acceptance H-92-N,~xlnocal Station #3655 Bob Sous~ HANOt. ING INSTUCTIONS: THE WASTE AS DESCRIBED IS 1OO% TYPED OR PRINTED FULL NAME & SIGNATURE DATE Dil'ard Trucking, Inc. Jobi/1431/30 EPAI C A D ~ ~ , ~ 9 ~ ~ ¢o 9J I.D. a:: NAME NO.I I I I I I I I I ~ ~ I ~ P. O. Box 218 ~ ADDRESS SERVICE ORDER NO. O ~'t~ Byron, California 94514 ~' Z. CITY. STATE. ZIP ,/' PICK UP DATE < / TRUCK. UNIT. I O. NO. TYPED DP PRINTED FULL NAME &~'NATURE " DA,~E EPA [ Laidlaw Environmental Services, Inc. I.D. C a D 9 8 0 6 7 5 2 , 6 NAME NO. I I I I I I I I I I I DISPOSAL METHOD ~" ADDRESS 2500 Lokern Road [~LANO~ILL ~ OTHER _~ BuC~.on~iiiow, California 93206-0787 (.~ C~TY. STATE. Z~P U. 800 5~4-7'199 PHONE NO. I"- TYP~ OR PRIN~'ED FULL NAME & SIGNATURE DATE / / s u,ozo--1. TRANS RT/CD HWDF NONE j DISCREPANCY ' NON-HAZARDOUS WASTE DATA FORM UNOCAL Marketing 'l NAME EPA i ,.o. C IA. iD ~ I 8 I- I I I~' ADDRESS S£~e:2800 Pierce Rd., Bakersf£eld, CA San Ramon, Ca. 94583 Station t/3655 Bob B~ust PHONENO' ~510,277--2368 CI~. STAT~ ZIP CONTAINERS: N~ VOLUME _ WEIGHT ~PE: ~ TANK''TRUCK X~ T~UcKDUMP ~ DRUMS ~ CARTONS '~ OTHER Removal of underground Soil wi:h Gas and Diesel GENERATINGPR~ESS tank WASTE DE~R~PT~ON COM~NENTS OF WASTE /' PPM % COM~NENTS OF WASTE PPM 99 .-9 Soil s Gasoline <0.1 6. Diesel <0.1 7 8 Neutral PROPERTIES: ~H__~SOLID ~ LIQUID ~ SLUDGE ~ SLURRY ~ OTHER Acceptance M-92-N Unocal Station ~3655 .. Bob Bous~ HANOt. ING INSTUCT~ONS: THE GENERATOR CERTIFIES THAT I ] ;' THE WASTE AS DESCRIBED IS 100~ WPEO OR P~INTED FULL NAME [ SIGNaTURe- ...... Job~t1431/30 EPAI C A D 9 8 I 6 9 Dillard Trucking, Inc. NO.I I I I I I I I I t ~ I I NAME P. O. Box 218 SERVICE O~DER NO. Byron, California 9451~ ~o~[~o. ~510} 636-6850 ~' ' NO. NAME OIS~SAL METHOD 2500 Loke~n ~o~d "~ L~O~L ~ OT~ ADDRESS Buttonwillow, Califprni.a 93206~0787 CI~, STAT~ ZiP 800 54a-7199 RT~CD H~ NONE ~ OISCREPANCY C/Q I · ' UNOCAL Marketing NAME EPA I v. o. Box s:55 ,.o. cpp ? 181210151415 ~6 ~ ADDRESS NO. Site:2800 Pierce Rd., Bakersfield, CA C~TY. STATE..Z,. San Ramon, Ca. 9&583 Station (t3655' Bob Boust PHONENO ~5101277--2368 VOLUME W ,G.T TANK DUMP [] [] ..P-: mUCK ~ TRUCK :.r-- ORUMS CARTONS OTHER ::Removal of underground WASTE DESCRiPTio.,Soil__ ~ith Gas and Diese[ GENERATING PROCESS tank COMPONENTS OF WASTE PPM % COMPONENTS OF WASTE PPM ~. Soil 99.9 Gasoline "' <0. l z__ 6. ~ Diesel <0. i Neutral PROPERTIES: DH X~SOIID 0 LIOUID ~'1 SLUDGE [] SLURRY [] OTHER HANDLING INSTUCTIONS: Acceptance H-92-N UnocaI~ Station !!3655 Bob J THE GENERATOR ' CERTIFIES THAT [ THE WASTE AS DESCRIBED IS 100% NON-HAZAROOUS~ ~'~V'~'~v-~. ,._~. ~r~, ~,,¢~v.~,~, '~\ ~'~/~>~ ~_~ . ~%A~%'L'~' TYPED OR PRINTED FULL NAME & SIGNATURE Dillard Truckin,. Inc. Job#1431/30 EPAI'.o. CAD9816 92809 NAME NO. I I I ! I I I I I I P. O. Box 218 AOORESS SERVICE ORDER NO. Byron, California 94514 CITY. STATE. ZIP PICK UP DATE TRUCK. UNIT. I.D. NO. y ~ ? -- I~ ~'~0 'TYPED ~'~ PRII~TEO 'FULL NAME-& SIGI~ATUf~I~' DATE EPA { Laidlaw Environmental Services, Inc. t0. C A D 9 8 0 6 7 5 2 7 6 NAME NO. I I I I I I I I I ! I DISPOSAL METHOD ADDRESS 2500 Lokern Road -- ~ ANDFILL [] OTHER BuCtonwillow, California 93206-0787 CITY. STATE. ZmP 800 544-7199 PHONE NO. TYPE~OR PRINTED ~:ULL NAME & SIGNATURE -- /~ j DATE GEN OLD/NEW L A TONS CJO RT/CD Hwo¢ NONE DISCREPANCY . ~,:.~.~ · ~ ~ ' 862 t · 'NON-HAZARDOUS WASTE DATAM UNOCAL Marketing· ..... :'~' NAME EPA{ 812 0 5 4 5 6 11 NO. ADDRESS Site:2800 Pierce Rd., Bakersfield, CA San ~n~ ~. 94583 SLat~on ~3655 Bob Bous~ PHONENO. ~510,277-2368 VOLUME WEIGHT ~PE: ~ ~NKmucK X~ OU~.mUCK ~ ORU~S ~ CAaTONS ~ omEaReaova[ of undersround Ii Soil utth Gas and Diesel tank W~IE OESCRIPT~N GENERATING PROCESS COM~NENTS OF WASTE PPM ~ COM~NENTS OF WASTE PPM % Sore 99.9 s. Gasoline <0. I 6. Diesel <0.1 Neutral HANOU~INSTUCTIONS: Acceptance M-O2"~nocal S~agton ~3655 Bob Bous~ NON-HAZARDOUS. . ~PE0 OR PRINTED FULL NAME & SIGNATURE OATE Dillard Trucking· Inc. Jobtt1431/30 '~ EPA I,.O. C A D 9 8 I 6 9 2 8 0 9~ P. O. Box 218 AOORE~ SERVICE OROER NO. Byron, ~liforni~ 9~514 PiCK UP DaTE Cl~. STATE ZIP ~pEO 0P PRINTEO FULL NAME & SIGNATURE DATE ~ldla~ Environmental Services, Inc. ~. 2500 Lokern Road ~w0F~L[ ~ om6R But:onwillow, California 93206-0787 c~. ST*T~. Z," 800 544--7199 ~ OR PRI~ED FULL NAME & GEN OLD/NEW L A ~NS C/O RT/CD H~¢ NONE DI~REPANCY ' --~1 .8 2o NON-HAZARDOUS WASTE DAI'A FORM 'UNOCAL Market in8 NAME EPA ! P. O. Box 5155 ,.o. CiA.iD 19 18121 ol 51 415 16 NO. ADDRESS .... Site:2800 Pierce Rd., Bakersfield, CA San Ramon, Ca. 9&583 ,.Station 03655 Bob Boust 'PHONENO. ~5101 277--2368 CITY. STATE, ZiP CO TAINE S:N~. VOLUME . ; WEIGHT TANK OUMP TYPE: E] TRUCK X~] TRUCK r-] DRUMS· [] CARTONS [] OTHER Removal of Soil with Gas and Diesel tank WASTE DESCRIPTION GENERATING PROCESS COMPONENTS OF WASTE PPM % COMPONENTS OF WASTE PPM Soil 99.9 Gasoline <0. i 6. Diesel <0.1 ? Neutral - PROPERTIES: ?.,..~. X~SOLIO r'l L!-QUjb .~ sLUDGE D SLURRY [] OTHER HANOUNGINSTUCTIONS: Acceptance'Ha92-N Unocal Stallion #3655 Bob Bous~' [THE GENERATOR C~RTIFIES THATI THE WASTE AS DESCRIBED IS 100~ : TYPED OR PRI~ED FULL NAME & SIGNATURE .... ' ' Dillard Trucki~, Inc. Job~1431/30 ~' EPA[Lo. CAD08 1 6 92809 P. O. Box 218 ADDRESS SERVICE OaDER NO. ~510 634-6850 EPAI Midla~ Environmen~al Services, Inc. ,.o. C ~ p ? q ~ 61 [ } ~ 71 6I NO. NAME O~S~t M~HOO AOORE~ 2500 Lokern Road ~ ~ LANOFILL ~ OTHER Cl~, STATE. Z[P 800 PHONE NO. ~ ~R PRINTEO FULL NAME & SIGNATURE /~ .... ~ 'DA~E C/~ RT/CO H~F NONE DI~REPANCY a eS l NON-HAZARDOUS WASTE DATA FORM ,.0. ~ ADORE~S __ .. $~te:2800 P~erce Rd.~ Bakers~te~d~ CA c~.~z~_San Ramon- Ca. 9~5~ S~a~ion 1~3655 Bob BousC ~ONENO. ~510~277--2368 CONTAINERS: No. Re~val of underscound ~ank W~TEOESCRiPTio~Oil with Gas and Diesel GENERATINGPR~E~ coM~NENTS OF WASTE PPM % COM~NENTS OF WASTE PPM Soil 9q-q 6, - HANDUNGINSTUCTIONS: Acceptance H-92-N Unocal S[a[ion 03655 Bob Sous+ THE WASTE AS DESCRIBED IS · ~O OR PRINTEO FULL NAME & SIGNATURE ~ ~ ~AT~ EPA Bill.rd Truc~lng, Inc. Job014Bl/30 t.~. C ~ P. O. Box 218 SE~ICE ORDER NO. AOORE~ Byron, Californi~ 94514 CI~. STAT~ ZtP PICK UP DATE TR~ UNIT, ID. NO. / ,.o. c~Ap p ~ q~ La~dlav [nvtronmental Services, Inc. NO. flAUE 01S~SA[ U~HOD AOOnESS ~500 ~okern Road ~LANOFIt[ ~ OTHER Bu[tonw~llow, ~l~forn~a 93~06--0787 Cl~. STATE. ZIP PHONENO. 800 5~4--7199 ~EO~h PRIhTEO FU~L' Nk~E g SIGhATURE/ ..... DATE CIO RT/CO H~F NONE DISCREPANCY . . NON-HAZARDOUS WASTE DATA FORM UNOCAL .~a rke t ~ n~ ~AME EPA ~ ~. O. Sox 5t55 .o. ADDRE~ S~e:2800 ~te~ce [d.~ BaLe~sE~e[d~~ CA San ~ns ~. 94583 S~e~ton ~3655 Bob Bous[ P.O.~NO. ~5t0~277--236S WEIGHT ' ~NTAINERS: VOLUME WPE: 0 TANK~ucK ~ DUMPmUCK 00.UMS 0 CA.TONS 0 Re--vel of underground Soil with Ga~ and Diesel tank WASTE DESCRIPTION GENERATING PR~ESS COM~NENTS OF WASTE PPM % COMPONENTS OF WASTE PPM % Sot1 99.9 Gasoline <0. l Dtese[ <0.1 7. a. · -- Neutral ~PEO OR PRI~ED ~Utt N~U~ & SIGNATURE Dillard Trucking, Inc. Jobfl1431/30 tPA,.o. C A D 9 8 1 6 9 2 8 0 9 NAME P. O. Box 218 ADORE~ ~' SERVICE ORDER NO. ~ EPA NAME DIS~SAL M~HO0 ADORESS ~00 ~Ok~ ~O~d ~LANDFiLL ~ OTHER ~/600 544-7199 PHONE NO. ~ :' ~R PRINTED FULL NAME ~ SIGNATURE ~ GEN OLOINE~ L ~NS S RT/CD H~F NONE DISCREPANCY C/Q · 8812 · NON-HAZARDOUS WASTE DATA FO UNOCAL Market NAME-.. EP~ ICI.D. A DO 82 05456 ADDRESS $iCe:2800 Pierce Rd-, Bakers£ield, CA San Rah~on, Ca. 94583 Stabion #3655 ~ob BousC 510 277-2368 Cl~. STATE. ZiP TRUCK ~ DUMP - ~UCK ~ DnUMS CARTONS ~mOVa[ O~ ~r~ro~[[d Soil utah Gas and Diesel lank WASTE DESCRIPTION GENERATING PR~ESS. COM~NENTS OF WASTE PPM ~ COM~NENTS OF WASTE . PPM Soil 99-9 Gasoline 6 Diesel . <0.1 Neutral ~ Acceptance M-92-N Unocal SC~Ctdn ~3655 Bob Boue~ HANO[.I~ INS~CTIONS: THE WASTE AS DESCRIBED IS ' ~PEO OR PRI~ED FULL NAME & SIGNATURE . ADDRESS SERVICE ORDER NO. Byron, California 9451~ ·~] [~/ ~_ ~ ~. Cl~. STA~ ZIP PICK UP DATE ~PED OR PRINTED PULL NAME & SIGNATURE ' , E"*~Cm. A D 9 8 0 6 7 5 2 7 NAME OlS~SAL M~flO0 2500 Lokern goad ~NOF~LL OTHER ADDRESS Bu[[on~illo-, ~li~ornia 93206-0787 800 54~-7199 ~O OR ~INTED FULL NAME & SIGNATURE . DATE GEN OLO/N~ L A TONS S C/O RT/CO HWO~ ~NONE OI~REPANCY · "" NON-HAZARDOUS WASTE'DATA FORM UNOCAL Marketing NAME EPA I P. O. Box 5155 ~.0. C A D 9 8 2 0 5 4 5 ^OORESS .O. I I I I I I I I I Site: 2800 Pierce Rd., Bakersfield, CA 510 277-2368 (~TY. STATE. ZIP San Ramon, Ca. 94583 Station #3655 Bob Boust PHONENO. ! I CONTAINERS: N~ ~LUME WEIGHT - . ~--j ~PE: . ~ TANK~ucK ~ THUcKDUMP ~ 0RUMS ~ CARTONS ~ OTHER Removal ot undersround Soil wi~h Gas and Diesel W~TE DE~RIPTION GENERATING PR~ESS PPM ~ COM~NENTS OF WASTE PPM COM~NENTS OF WASTE Soil /". 9.9.9 ' .' <0.1 Gasoline -~ . 6. 2. ~./ . ' ~. ' · Neutral ~OPERTIES: ~-- ~LIO~ U, LIOUIO ~ SLUDGE ~ SLURRY ~ OTHER HANOLING INS~UCTIONS: Acceptance M-92-N Unocai Station ~3655 Bob .Bousk ~. I ~,, · .t : · I THE -GENERATOR CERTIFIES THaTI J' I THE WASTE AS O[SCRIBED. IS 10~I~.~ ~,.~ ~ ' ~ ~O OR PRI~ED FULL NAME & SIGNATU~ ' - ' - NAME NO.I I I I I I I I I I E. O. Box 2[8 AOORESS SERVICE ORDER NO. .~ /~ O~ PRINTED FULL N~ME ~ SIGNATURE TRUC~ UNIT. I.D. NAME ~td[a~ Env~ronmen[a[ Services, ~. '~ I I I I I I I I I OIS~SAL M~HOO ADDRESS 2~00 LoEern load ~ LANDFILL ~ OTHER S~tto~ut[[o~, ~[~or~s 93206-07S7 Cl~. STATE. ZIP 800 ~E NO. ~O~-~INT~U~L ~AME ~ SIGNAT~ - ~ DATE GEN OLD/NEW L T~NS S C/O RT/CO N~N~ D ~REPANCY ,'- NON-HAZARDOUS WASTE DATA.FO M UNOCAL Harke~in~ ] NAME EPA lC ¢D'9,.o. 82 054561 P. 0. Box 5155 NO. I I I I I I I I I I ADDRESS Site: 2800 Pierce Rd., Bakersfield. CA San Ramon, Ca. 94583 SlatE'on #3655 Bob BoustPHONE NO. ¢510 ~ 277--2368 CITY. STATE. ZIP / TANK DUMP TYPE: [] TRUCK X~ TRUCK [] DRUMS ~'] CARTONS [] *OTHER Kemoval of undergroUl;d Soil with Gas and Diesel tank GENERATING PROCESS WASTE DESCRIPTION - COMPONENTS OF wASTE PPM qb~ COMPONENTS OF WASTE PPM % Gasoline <0. l 3. Neutral PROPE.TIES: OH ~SOUD ~ klOUlO SLUDGE ~ SLURRY ~ OTHER Accepg~e.~-92*N Unocal S~aCion ~3655 Bob Bous~ HANOi.lNG INSTUCTIONS: . · I~HE WASTE AS OESCRIBEO IS ' ~O OR PRINTED FULL NAME & SIGNATURE P. 0.. 8ox~'210 : SERVICE ORDER NO. ~/ AOORESS ~l - ',~yron, California 94514 ~O~NO. ~510~ 636-6850 EPA lC A D 9 8 0 6 7 3 2 7 6 ~idlaw Environmental Services, Inc. t.D. NAME OlS~SAL M~HOD 2500 Lokern Road ~ LANDFILL ~ OTHER ADDRESS gueeon~llo~, C~l~forn~a 93206-0787 Cl~. STATE. ZiP 800 54~-7199 FULL NAME & SIGNATUR~ OATE GEN OLO/NEW L lOfi~/~) ' RT/CO H~F NONE I DISCREPANCY C/O I 8618 -. NON-H ARDOUS WASTE DATA FORM N~ME -___~UNOCAL P. O. ~ox 5155 AOORESS. ID. D 9 4 5 6 NO. Site:2800 Pierce Rd., Bakersfield, CA ~.STA~Zm San Ra~n, Ca. 94583 Station ~3655 Bob BousC PHONENO ~S~ 277-2368 TANK DUMP ~PE: ~ T, UCK ~ ~ ORU~S ~ CA,TONS ~ OTHEn THUCK Soil with Gas and Diesel Re--vaI of underground W~TE DESCRIPTION GENERATING PR~ESS ~ COM~NENTS OF W~YE PPM ~ COM~NENTS OF WASTE ~ Soil 99.9' 5. Gasoline <0. I - 2. 6. 3. Diesel <0. I 7 Neutral H~NOUNG,NS~CT,ONS: Acceptance H-92-N Unocal Station ~3655 Bob Bous~ ~ THE WASTE AS DESCRIBED IS ~ [ NON-H~AROOUS. Dillard Trucking, Inc. Job~143[/30 EP~[ C A D NAME ~ ' ' LD. ' B. O. Box '2t8 ADDRESS__ Byron, Cslifornia 945 ]4 se~wce ORDER NO.' ~. STAT~ ZIP ~eNO. ~StO) 634--6850 ' ~.0. A D 9 80 6 7 5 2 7 6 ~ORESS_ 2~00 Lo~ern Road o~s~S~[ M~HOO Bucton~[[o~, ~[t~nLe 93206-0787 800 544-7~99 ~E NO. ~NS ~ ~ANCY -. ~ATE ~o NON,-HAZARDOUS.WASTE DATA FORM UNOCAL.:,.~aX~ke ~ NAME : EPA ] P. O. Box 5!55 ~o. C A D 9 8 2 0 .o. I I I I I I I I l ADDRESS '~'~'/ Site:2800 Pierce Rd., Bakersfield, CA San Rain, Ca. 94583 Station tt3655 Bob Boust 51~ 277-2368 Cl~. STATE. ZIP PHONE NO1 CONTAINERS: N0. ~~ VOLUME]/~ WE'IGHT ~PE: [~ TANKTRuCK ~ DUMPTHuCK ~ DRUMS ~ CARTONS ~ OTHER Remova~ o~ underground Soil with Gas and Diesel tank WASTE DESCRIPTION GENERATING ~ROCESS COMPONENTS OF WASTE PPM ~ COMPONENTS OF WASTE Soil 99.9 GAUD] ~ne ~0.1 2. 6 a. Neutral Acceptance H-9Z~ Unocal Station 03655 Bob Bous} HANDLING INSTUCTIONS: THE GENERATOR CERTIFIES IHATi THE WASTE?AS DESCRIBED IS 100~ WPED OR PRINTED FULL NAME & SIGNATURE DATE Dillard Trucking, Inc. Job{t1431/30 EPAI C A NAME. NO. I I I I I I [ I I P. O. Box 218 ADDRESS SERVICE O~DER NO. Byron, Calit'ornza 9~51~ Cl~. STATE. ZiP PICK UP DATE PHONENO. (St0) 63~-6850 TRUC~ UNIT. lO. NO. ~ ~ ~PED DP PRINTE0 FULL NAME & SIGgATURE ' 0ATE Laidia~' Environmen[al Services, Inc. LD. C a D 9 8 0 6 , 5 2 NAME NO. I I I I I I I DIS~SAL METHOD 3500 Lokern Road ~LAND¢ILL ~ OTHER AOORESS But[on~'iilo~, California 93206-0787 ClR, STATE. ZIP / 800 5~-7199 / ~O OR PRINTED FULL NAME & SIGNATURE ~ DATE GEN OLO,'NEW L A TONS ~[~ CIO RT/CD HWOF NONE ~ · UNOCAL Marketing ' NAME EPA I ADDRESS ?. O. SOX ~ [ 5~ "O."0' C IA i~ Sit;e:2800 Pierce Ed., Bakers££eldx CA San Ramon, Ca. 94583 Station #3655 Bob Boust PHONENO 4:310,277-2368 CITY. STATE- ZiP O CONTAINERS: N* ~'~A (9 ~ VOLUME WEIGHT I"" v II! ,/' TANK DUM~ r'-] .' · · ,' Z TYPE: [] TRUCK X~ TRUCK [] DRUMS/ [] CARTONS~ OTHER -.' .'~" ' / ;' I~1 ~... ";Remora! o£ underS;round S with Gas and Diesel tank WASTE DESCRIPTIONOi GENERATING PROCESS >- . {~3 COMPONENTS OF WASTE PPM % COMPONENTS OF WASTE PPM ~J ~ Soil ~ 99.9 ~J Gasoline <0.1 Q. 2. e. O 3 Diesel <0. [ 7 ~ 4 e, 0 Neutral l'"' PROPERTIES: ~ X~SOLID []'LIQUID [] SLUDGE [] SLURRY [] OTHER Acceptance 'M-92-N.Unocal SCatio.n #3655 Bob Bous~ HANDLING INSTUCTIONS: '-..'. _. THE :'GENERATOR CERTIFIES THATI THE WASTE AS DESCRIBED IS 100~ NON-HAZARDOUS. ' TYPEO OR PRINTED FULL NAME & SIGNATURE . ;,-~-. ~., [~ / ;~:::~-';.~L ~ ~-1~ ~)ATE Dillard Trucking, Inc. Job#1431/30 ' EPAi. D. [ C A D 9 8 I 6 92809 ~ NAME NO.I I I I I I I I I I I I ~' P. O Box 218 ~ - 0 ADDRESS SERVICE ORDER NO. Z CITY. STATE_ ZIP ~ PtCK UP DATE n- (510~ 634-6850 I { ' TRUCK. UNIT. 4.0. NO. ~.~,~_ ~ TY~E-O ~P PRINTED FULL I~A'ME il SIGNATURE ~ DATE Laidlaw Environmental Services, Inc. : .,.o. C IA ~ ? f ~ 61 i7 ~ 2 7 6 NAME ' NO. i DISPOSAL METHOD ~' ADDRESS 2500 Lokern Road [~ LANDFILL [] OTHER .-~__ Buttonwillow, California 93206-0787 /. (.~ CITY. STATE. ZIP ¢ .IZ. 800 544-7199 ~ TYPED OR PRINTED OATE GEN OLD/NEW L A -T~ I TRA,,S S zoo .ICIO RTICO HWOF NgNE , OISCREPANCY