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Sequoia 404 N .CA Lane <br /> 1 Walnut Creek.CA 94598 <br /> (925)988-9600 <br /> FAX <br /> Analytical quo 73 <br /> labs c <br /> www sequolaabs coin <br /> Gettler Ryan,Inc -Dublm Project Chevron <br /> 6747 Sierra Court Sutte J Project Number Chevron 9 9-1848 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 13-Jun-01 20 06 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reportmg <br /> Analyte Result Lunt Uruts Dilution Batch Prepared Analyzed Method Notes <br /> TB-LB 105509-01 Water Sampled 23-May-01 00 00 Received 23-May-01 15 45 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 1E30003 31-May-01 31-May-01 EPA <br /> 8015W8020 <br /> Benzene ND 050 " " " " •' » <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 <br /> Methyl tent-butyl ether ND 2 5 " <br /> Surrogate a,a,a-Tnfluorotoluene 107% 70-130 " <br /> C-1 105509-02 Water Sampled 23-Ma -0l 11 00 Received 23-May-01 15 45 <br /> Purgeable Hydrocarbons 60 50 ugll 1 1E30003 02-Jun-01 02-Jun-01 EPA P-01 <br /> 8015M/8020 <br /> Benzene ND 050 » » <br /> Toluene ND 050 <br /> benzene ND 050 » " <br /> nes(total) ND 050 " <br /> Methyl tent-butyl ether 28 2 5 " " CC-3 <br /> Surrogate a,a,a-Tnfluorotoluene 102% 70-130 " <br /> C-2 105509-03 Water Sampled 23-May-01 1130 Received 23-Ma -01 15 45 <br /> Purgeable Hydrocarbons ND 50 ug/I 1 1E30003 02-Jun-01 02-Jun-01 EPA <br /> 8015M/8020 <br /> Benzene ND 0 50 <br /> Toluene ND 0 50 " <br /> Ethylbenzene ND 050 » " <br /> Xylenes(total) ND 0 50 " <br /> Methyl tert-butyl ether 15 2 5 CC-3 <br /> Surrogate a,a,a-Trtfluoratoluene 953 % 70-130 " <br /> ora Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance wish the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 2 of 8 <br /> r� <br />