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` 404 N Wlget Lane <br /> Walnut Creek,CA 94598 <br /> Sequoia (975)988-96M <br /> FAX(925)988-%73 <br /> Analytical www sequolaLabs`om <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> 6747 Sierra Court Suite J Project Number Chevron#9-6171 Report Revised <br /> Dublin CA,94568 Project Manager Deanna L Harding 15-Jan-01 08 05 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analyihcal -Walnut Creek <br /> Reportmg <br /> Analyte Result Lunit Units Dilution Batch Prepared Analyzed Method Notes <br /> TBLB(W011102-01)Water Sampled 01-Nov-00 00 00 Received 03-Nov-0018 15 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 OK16008 16-Nov-00 16-Nov-00 EPA <br /> Benzene ND 050 " " 8015M/8020 <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl text butyl ether ND 2 5 " <br /> Surrogate a,a,a-Tnfluorotoluene 101 % 70-130 " <br /> MW2(WO11102-02)Water Sampled OI-Nov-00 06 19 Received 03-Nov-0018 15 D-06 <br /> Purgeable Hydrocarbons 160 50 ug/l 1 OK16008 16-Nov-00 16-Nov-00 EPA <br /> Benzene 25 050 " ^ 8015MI8020 <br /> Toluene 17 0 50 " <br /> Ethylbenzene ND 050 <br /> Xylenes(total) 12 050 " <br /> Mift tert-butyl ether 31 2 5 CC-3 <br /> Su gate a,a,a-Trifluorotoluene 940% 70-130 " <br /> MW3(WO11102-03)Water Sampled 01-Nov-00 06 41 Received 03-Nov-00 18 15 D-06 <br /> Purgeable Hydrocarbons 260 50 ug/i 1 OK16008 16-Nov-00 16-Nov-00 EPA <br /> Benzene 0 83 050 " " " 8015M/8020 <br /> Toluene 21 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) 098 050 " <br /> Methyl tert butyl ether ND 25 <br /> Surrogate a,a,a-Tnfluorotoluene 101 % 70-130 " <br /> Sis Analytical-Walnut Creels This report represents a revision of the ongnid document The results!n this report apply <br /> 6 to the samples anal}ned m accordance with the chain of custody document This analyacal <br /> report must be reproduced in its entirety <br /> -CUto Westwater,Project Manager Page 2 of 8 <br />