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885 Jams Dr <br /> 4DSequoia Margm 14ill,CA 95037 <br /> Analy ica (408)776A60 <br /> FAX(408)782-03088 <br /> www mquoialabs can <br /> Stratus Environmental Inc Project ARCO 42130 MLL0779 <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-Trimethylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical- Sacramento <br /> Reporting <br /> Analyte Result Linut Units Dilution Batch Prepared Analyzed Method Notes <br /> VW-1 LL0779-01 Water Sampled 12/19/02 11 06 Received 12/19/0215 55 <br /> Purgeable Hydrocarbons 810 500 ug/l 10 3010016 01/02/03 01/02/03 EPA 8015/8021 <br /> Benzene ND 5 0 " " " " " " <br /> Toluene ND 5 0 " <br /> Ethylbenzene 59 50 <br /> Xylenes(total) 130 5 0 " <br /> Surrogate a,a,a-Trtfluorotoluene 91% 60-140 " <br /> VW-2 L0779-02 Water Sampled 12/19/02 07 12 Received 12/19/02 15 55 <br /> Purgeable Hydrocarbons 120 50 ug/l 1 3010016 01/02/03 01/02/03 EPA 8015/8021 <br /> Benzene 1.2 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Surrogate a,a,a-Trrfluorotoluene 97% 60-140 " <br /> A&VW-3 LL0779-03 Water Sampled 12/19/02 11 45 Received 12/19/02 15 55 <br /> —rurgeable Hydrocarbons ND 50 u8/1 1 3010016 01/02/03 01/02/03 EPA 8015/8021 <br /> Benzene 099 0 50 " " " " " " <br /> Toluene ND 0 50 " <br /> Ethylbenzene 3 8 050 " <br /> Xylenes(total) 10 050 " <br /> Surrogate a a,a-Trtfluorotoluene 89% 60-140 " <br /> VW4(MLL0779-04)Water Sampled 12/19/02 10 04 Received 12/19/0215 55 <br /> Purgeable Hydrocarbons 110 50 ug/l 1 3010016 01/01/03 01/01/03 EPA 8015/8021 <br /> Benzene 093 050 11 " 1. <br /> " " <br /> Toluene ND 050 1. <br /> " " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Surrogate a,a,a-Trtfl'uorotoluene 95% 60-140 " <br /> I <br /> quota 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 bans <br /> This analytical report must be reproduced to its entirety <br /> 3 of 17 <br />