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1 885 Jarvis Dr <br /> is) Sequoia iNQgan flifl,CA 95037 <br /> (408)776-9600 <br /> Analytical FAX(408)782-6308 <br /> www sequwalabs can <br /> Stratus Environmental Inc Project ARCO 42130 MC,L0779 <br /> 3330 Cameron Park Dr,Suite 550 Project Number ARCO#2130,Stockton,CA Reported <br /> Cameron Park CA,95682 Project Manager Jay Johnson 01/10/03 16 20 <br /> Gasoline(2-Methylpentane to 1,2,4-T>rimethylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical-Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Nates <br /> VW-5(MLL0779-05)Water Sampled 12/19/02 07 53 Received 12/19/02 15 55 <br /> Purgeable Hydrocarbons 110 50 U84 1 3010016 01/02/03 01/02103 EPA 8015/8021 <br /> Benzene 4 0 0 50 " <br /> Toluene 1 1 0 50 " <br /> Ethylbenzene 076 050 " <br /> Xylenes(total) 075 050 " <br /> Surrogate a a a-Triuorotoluene 118% 60-140 � <br /> VW-7(MILL0779-06)Water Sampled 12/19/02 12 48 Received 12/19/02 15 55 <br /> Purgeable Hydrocarbons 160 50 ug/l 1 3010016 01/02/03 01/02/03 EPA 8015/8021 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene 1.3 050 " <br /> Xylenes(total) ND 050 <br /> Surrogate a a a-Trtfluorotoluene 116% 60-140 " <br /> AIM&VW-R L0779-0 Water Sampled 12/19/02 09 13 Received 12/19/02 15 55 <br /> —irurgeable Hydrocarbons 290 50 ug/1 1 3010016 01/02/03 01/02/03 EPA 8015/8021 <br /> Benzene 46 050 " <br /> Toluene 14 050 <br /> Ethylbenzene 12 050 " <br /> Xylenes(total) 31 050 " <br /> Surrogate a a,a-Tr fluorotoluene 96% 60-140 " <br /> VW-10(MLL_0779-08)Water Sampled 12/19/02 08 30 Received 12/19/02 15 55 <br /> Purgeable Hydrocarbons 14000 5000 ug/1 100 3010016 01/01/03 01/01/03 EPA 80151902I <br /> Benzene 2800 50 " <br /> Toluene 890 50 <br /> Ethylbenzene 890 50 " <br /> Xylenes(total) 3600 50 " <br /> Surrogate a,a a-Tri luorotoluene 80% 60-140 " <br /> equola Analytical-Morgan Hill The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> 4 of 17 <br />