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1551 Industrial Read <br /> San Carlos,CA 94070-4111 <br /> 1 Sequoia (650).232-%W <br /> FAX(650)232-4612 <br /> M Analytical `"'""" u°'�' °°"' <br /> Gettler-Ryan/Geostrategies(l) Project: Tosco(2) Sampled: 8128100 <br /> 6747 Sierra Court,Suite d Project Number Unocal SS# 11195116500 So.Interstate I'5,LathRegeived: 8128100 <br /> Dublin,CA 94568 Project Manager. Deanna Hardie : 9114/00 <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> lAnalyte Anal Level Result Result Units Recov.Limits % Limit % Notes* <br /> Blank(continued) 0080144-BLK1 <br /> Tert-amyl methyl ether 8130/00 ND ug/l 2.00 <br /> Surrogate: 1,2 Dichloroethane-d4^ " 50.0 51.6 76.0-114 103 <br /> LCS 0080144-BSI <br /> Methyl tart-butyl ether 8/30/00 50.0 52.6 ugll 70.0-130 105 <br /> Surrogate: 1,2-Dichloroethaned4 " 50.0 52.0 it 76.0-114 104 <br /> Matrix Spike 0080144-MS1 L008195-05 <br /> Methyl tett-butyl ether 8130/00 50.0 29.7 80.9 USA <br /> Surrogate: <br /> 102 <br /> Surrogate: 1,2 Dichlomethaned4 " 50.0 54.8 ff 76.0-114 110 <br /> Matrix Spike Dun 0080144-USD1 1,00819545 <br /> Methyl tcrt-butyl ether 8/30/00 50.0 29.7 75.4 ug/l 60.0-140 91A 25.0 11.0 <br /> -gate: 1,2-Dichloroethane-d4 " 50.0 54.0 76.0-114 108 <br /> t Batch: 0080149 Date Prepared: 8131100 Extraction Method: EPA 5030B tPrn <br /> Blank 0080149-BLK1 <br /> Ethanol 9/1100 ND ug/l 1000 <br /> Tert-butyl alcohol ND 100 <br /> Methyl tent-butyl ether TM ND 2.00 <br /> Di-isopropyl ether ND 2.00 <br /> Ethyl test-butyl ether ND 2.00 <br /> Tett-amyl methyl ether ND M 2.00 <br /> Surrogate: 1,2 Dichloroethane-d4 " 50.0 44.7 76.0-114 89.4 <br /> Blank 0080149-BLK2 <br /> Ethanol 911100 ND ug/l 1000 <br /> Tert-butyl alcohol ND 100 <br /> Methyl tent-butyl ether , ND 2.00 <br /> Di-isopropyl ether + ND 2.00 <br /> Ethyl tat-butyl ether ND 2.00 <br /> Tent-amyl methyl ether " ND " 2.00 <br /> Surrogate: 1,2Dkhloroet� 50.0 44.7 76.0-114 89.4 <br /> LCS 008014"S1 <br /> Methyl tert-butyl ether 9/l/00 50.0 53.8 ug/l 70.0-130 108 <br /> Surrogate: 1,2 Dichloroethane-& of 50.0 46.0 76.0-114 92.0 <br /> LCS 0080149-BS2 <br /> Methyl teat-butyl ether 9/l/00 50.0 53.8 ug/l 70.0-130 108 <br /> ..7gate: 1,2-Dichloroethane-d4 50.0 46.0 " 76.0-114 92.0 <br /> Sequoia Analytical-San Carlos *Refer to end of repartfor text of notes and definitions. <br /> Page 18 of 20 <br />