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404 N Wiget Lane <br /> Sequoia Walnut Creek C 9 <br /> {925}988 96W8 9600 <br /> 4 FAX(925)988%73 <br /> Analytical www sequoialabs cam <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> 6747 Sierra Court Suite J Project Number Chevron#9-8632 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 16-Aug-Ol 08 08 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-2(W107557-04)Water Sampled 31-Jul-01 10 31 Received 31-Jul-01 16 00 <br /> Purgeable Hydrocarbons ND 50 ug/i I IH01003 08-Aug-01 08-Aug-01 EPA <br /> 8015M/8020 <br /> Benzene ND 0 50 Q-23 <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tent-butyl ether(MTBE) 140 2 5 <br /> Surrogate a a a-Trifluorololuene 980% 70-130 <br /> MW-3(W107557-05)Water Sampled 31-Jul-01 10 50 Received 31-Jul-01 16 00 <br /> Purgeable Hydrocarbons 280 50 ug/1 1 1HO1003 08-Aug-01 08-Aug-01 EPA P-01 <br /> 8015M/8020 <br /> Benzene 4 6 0 50 Q-23 <br /> Toluene 080 050 <br /> Ethylbenzene 7 7 0 50 " <br /> Xylenes(total) 2 5 050 " <br /> Methyl tert-butyl ether(MTBE) 63 2 5 <br /> Surrogate a,a,a-Trifluorotoluene 102% 70-130 <br /> MW-4(W107557-06)Water Sampled 31-Jul-01 11 08 Received-31-Jul-01 16 00 <br /> Purgeable Hydrocarbons 460 50 ugfl 1 11101003 08-Aug-01 08-Aug-01 EPA P-01 <br /> 8015M/8020 <br /> Benzene 75 0 50 Q-23 <br /> Toluene 2.1 050 <br /> Ethylbenzene 6 7 0 50 <br /> Xylenes(total) 23 050 " <br /> Methyll tert-butyl ether(MTBE) 8 1 2 5 <br /> Surrogate a a a-Trifluorotoluene 115% 70-130 <br /> Sequoia Analytical- Walnut Creek The results in this report apply to the samples analyzed in accordance with the CO <br /> custody document Tins analytical report must be reproduced in its e <br /> Page 3 of 14 <br />