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404 N Wiget Lane <br /> Walnut Creels,CA 94598 <br /> www <br /> ` Sequoia (925)988-9673 <br /> FAX(925}988-9673 <br /> l- Analytical sequolalabs cam <br /> Gettler Ryan,Inc -Dublin Project Tosco <br /> Project Number Tosco#4409 Reported <br /> 6747 Sierra Court Suite J 06-Feb-Ol 17 21 <br /> Dublin CA,94568 Project Manager Deanna L Harding <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Luiut Units Dilution Batch Prepared Analyzed Method Notes <br /> P-01 <br /> YIW-5(W101522-06)Water Sampled 22-0an-01 13 22 Received 23-Jan-01 16 00 <br /> PlurgeableHydrocarbons840 50 ug/1 1 1A25002 25-Jan-01 25-Jan-01 EPA <br /> 8015M/8020 <br /> 61050 <br /> Benzene „ <br /> Toluene 15 050 " <br /> Ethylbenzene 16 050 <br /> „ <br /> Kylenes(total) 48 050 <br /> Methyl tert butyl ether 11 2 5 " <br /> surrogate a,a a-Trnfluorotoluene 913% 70-130 " <br /> P-01 <br /> YIW-6(W101522-07)Water Sampled 22,Jan-01 15 32 Received 23-Jan-01 16 00 <br /> Purgeable Hydrocarbons 2300 1000 uga 20 1 A25002 25-Jan-01 25-3an-01 EPA <br /> 8015M/8020 <br /> Benzene 22 10 It <br /> Toluene 13 10 <br /> Ethylbenzene ND 10 <br /> Xylenes (total) 79 10 <br /> Methyl tert-butyl ether ND 50 " <br /> Surrogate a,a,a-Tnfluorotoluene <br /> 947% 70-130 " " " <br /> P-01 <br /> N1W-7(W101522-08)Water Sampled 22-Jan-01 14 28 Received 23-Jan-01 16 00 <br /> EPA <br /> Purgeable Hydrocarbons 88 50 ug/1 1 1A25002 25-Jan-01 25-Jan-01 8015M/8020 <br /> 050 <br /> 18 11Benzene „ <br /> Toluene <br /> 10 050 <br /> Ethylbenzene 20 050 <br /> Xylenes(total) 12 050 " <br /> Methyl tert-butyl ether ND 2 5 <br /> Surrogate a,a,a-Triflrtarofoluene <br /> 101 % 70-130 <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document. Tins analytical report must he reproduced in its entrretyO <br /> Page 2 of 12 <br />