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404 N WigetiLane f" <br /> Sequoia Walnut Creek C99598 <br /> (925) <br /> 8-9600 <br /> FAX(925)988-9673 <br /> Analytical www sequoialabs cam <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> -6747-Sierra Court-Suite J Project Number Chevron#9-6171 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 31-Jul-01 07 59 <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 4(W107262-04)Water Sampled 12-Jul-01 12 31 Received 13-Jul-01 17 35 <br /> Purgeable Hydrocarbons 140 50 ugll 1 1G20003 24-Jul-01 24-Jul-01 EPA D-06 <br /> 8015M/8020 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 25 " <br /> Surrogate a,a a-Triuorotoluene 105% 70-130 " <br /> MW 5(W107262-05)Water Sampled 12-Jul-01 10 40 Received 13-0ul-01 17.35 <br /> Purgeable Hydrocarbons 84 50 ug/I 1 IG20003 24-Jul-01 24-Jul-01 EPA D-06 <br /> 8015M/8020 <br /> Benzene ND 050 <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether 45 25 " zCC-3 <br /> Surrogate a aa-Triuorotoluene 106% 70-130 " <br /> MW 6(W107262-06)Water Sampled 12-Jul-01 12 56 Received 13-Jul-01 17 35 <br /> Purgeable Hydrocarbons 150 50 ug/1 1 1G20003 24-Jul-01 24-Jul-01 EPA D-06 <br /> 8015M/8020 <br /> Benzene 075 050 "LL 4 zCC-3 <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 " <br /> Methyl ter(-butyl ether 9.6 2 5 " " zCC-3 <br /> Surrogate a,a a-Trifluorotoluene 149% 70-130 " S-04 <br /> Sequoia Analytical -Walnut Creek The results in this report apply to the samples analyzed in accordance with thec <br /> custody document nis analytical report must be reproduced in its int <br /> Page 3 of 18 <br />