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,f <br /> Sequoia <br /> e qu o i a 404 NCA Lane <br /> J Walnut Creek,,CA 94598 <br /> FAX Analytical (925}988-96a4- 00 <br /> (925)988-9673 <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite I Project Number Unocal#0187 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 09-Mar-00 10 44 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Lutut Units Dilution Batch Prepared Analyzed Method Notes <br /> TB-LB(W002567-01)Water Sampled 22-Feb-00 00 01 Received 24-Feb-0013 05 <br /> Purgeable Hydrocarbons ND 50 ug/1 I OB29001 29-Feb-00 29-Feb-00 EPA <br /> 8015M/8020 <br /> Benzene ND 050 <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 " <br /> Methyl tent-butyl ether ND 25 <br /> Surrogate a,a,a-Tnfluorotoluene 104% 70-130 " <br /> U-1 (W002567-02)Water Sampled 22-Feb-00 12 11 Received 24-Feb-0013 05 <br /> Purgeable Hydrocarbons ND 50 ug/I 1 OB29001 29-Feb-00 29-Feb-00 EPA <br /> 8015M/8020 <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-Tnfluorotoluene 107% 70-130 " <br /> U-2 (W002567-03)Water Sampled 22-Feb-00 11 35 Received 24-Feb-0013 05 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 OB29003 29-Feb-00 29-Feb-00 EPA <br /> 8015M/8020 <br /> _-"Benzene--- _.— — _ . _ <br /> Toluene ND 050 <br /> Ethylbenzene -- ND _- 6-50 <br /> Xylenes(total) ND 0 50 <br /> Methyl tert-butyl ether ND 2 5 ~ <br /> Surrogate a,a,a-Tnfluorotoluene 102% 70-130 " <br /> Sequoia Analytical-Walnut Creek The results in thus report apply to the srnnples analyzed in accordance with the chmn o <br /> custody document. TMs analytical report must be reproduced to its entire <br /> Page 2 of 22 <br />