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i <br /> � 885 Jams Dr � <br /> Sequoia McrW Hill,CA 95037 <br /> ,1), (408)776-9600 <br /> Analytical <br /> FAX(446)792-6308 <br /> www sequoiafabs can <br /> i <br /> URS Corporation[11 Project BP Heritage Site#11194,Tracy,CA MLK0111 <br /> 2870 Gateway Oaks Dr,Ste 300 Project Number BP Heritage Site#11194,Tracy,CA Reported <br /> Sacramento CA,95833 Project Manager Vern Elarth 11/24/02 14 29 <br /> Total Purgeable Hydrocarbons (C&C10) by EPA 8015B modified,BTEXM by EPA 8021B <br /> Sequoia Analytical w Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> AMW-4 LK0lll-04 Water Sampled 10/31/021155 Received 17/01/02 12 50 <br /> Gasoline Range Organics(C6-C10) ND 50 ug/l 1 2K14001 11/14/02 11/14/02 8015Bm/8021B <br /> Benzene ND 0 50 " <br /> Toluene ND 0 50 <br /> Ethylbenzene ND 0 50 " <br /> Xylenes(total) ND 0 50 " <br /> Methyl tert-butyl ether ND 25 " <br /> Surrogate a,a,a-Trrfluorotoluene 990% 55-142 " <br /> AMW-5 MLK011I-05 Water Sampled 10/31/02 14 28 Received 11/01/02 12 50 <br /> Gasoline Range Organics(C6-C10) 50 50 ug/l 1 2KI4001 11/14/02 11/14/02 8015Bm/8021B HC-12 <br /> Benzene 066 050 " " " <br /> Toluene ND 050 " " " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether 19 2 5 " <br /> arrogate a a a-Triuorotoluene 86691. 55-142 " <br /> AMW-6 MLK0111-06 Water Sampled 10/31/02 12 20 Received 11/01/02 12 50 <br /> Gasoline Range Organics(C6-C10) ND 50 ug/l 1 2K14001 11/14/02 11/14/02 8015Bm/8021B <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether 19 25 " <br /> Surrogate a,a a-Trtfluorotoluene 101 % 55-142 " <br /> equola Analytical-Morgan Hill The results in this report apply to the samples analyzed on 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 /> 4of10 <br />