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1551 industrial Road <br /> San Carlos,CA 94070-4111 <br /> 1 Sequoia (650)232-9600 <br /> ^. FAX(650)232-9612 <br /> Analytical '"`""' "°` �"' <br /> Gettler-Ryan/Gcostrategies(I) Project: Tosco(2) Sampled: 11/13/00 <br /> 6747 Sierra Court,Suite J Project Number: Unocal SS##11195 Received: 11/13/00 <br /> Dublin,CA 94566 Project Manager Deanna Harding Reported: 11/29/00 <br /> ;i MINEWOMM <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes"' <br /> Matrix Splke icond ped. 0110077-MS1 L011093-05 <br /> Surrogate. 1,2 Dichloroethane-d4 11114100 50.0 45.6 u94 76.0-114 91.2 <br /> Matrix Spike Dup 0110077-MSD1 L011093-05 <br /> Methyl text-butyl ether 11/14/00 50.0 ND 47.2 u9/1 60.0-140 94A 25.0 1.06 <br /> Surrogate: 1,2 Dichloroethane-d4 IF50.0 47.1 " 76.0-114 94.2 <br /> Batch: 0110084 Date Prepared: 11/15/00 Extraction Method: EPA 5030B <br /> Blank 0110084-BLKI <br /> Ethanol 11/15/00 ND ug/l 1000 <br /> Tert butyl alcohol " ND „ 100 <br /> Metbyl tert-butyl ether " ND It 2.00 <br /> Di-isopropyl ether " ND " 2.00 <br /> Et)xv1 teat-butyl ether " ND It 2.00 <br /> 7::'- nyl methyl ether ND " 2.00 <br /> Suritogate: 1,2-Dichloroethane,d4 " 50.0 50.4 76.0-114 101 <br /> Blank 0110084-BLK2 <br /> Ethanol 11/16/00 ND ug/l 1000 <br /> Tert-butyl alcohol ND „ 100 <br /> Methyl text butyl ether It <br /> ND It 2.00 <br /> Di-isopropyl ether ND „ 2.00 <br /> Ethyl tert-butyl ether ND 2.00 <br /> Tert-amyl methyl ether ND 2.00 <br /> Surrogate: 1,2-Dichloroethane,d4 50.0 46.3 76.0-114 92.6 <br /> LCS 0110084-BSI <br /> Methyl tert-butyl ether 11/15/00 50.0 53.9 ugll 70.0-130 108 <br /> Surrogate. 1,2 Dichloroethane-d4 " 50.0 50.8 " 76.0-114 102 <br /> LCS 0110084-BS2 <br /> Methyl teat-butyl ether 11/16/00 50.0 50.2 ug/l 70.0-130 100 <br /> Surrogate: 42-Dichloroethane-i4 50.0 48.2 76.0-114 96.4 <br /> Matrix Spike 0110084-MS1 L011149-01 <br /> Methyl tart-butyl ether 11/15/00 50.0 39.3 64.5 u911 60A-140 90A <br /> Surrogate: 1,2 Dichloroethane-d4 It <br /> 50.0 50.4 to 76.0-114 101 <br /> Matrix Spike Dup 0110084-MSDI L011149-01 <br /> Methyl tert-butyl ether 11/15/00 50.0 39.3 81.3 ug/l 60.0-140 84.0 25.0 734 <br /> Surrogate: 1,2 Dichloroethane-d4 IF 50.0 48.4 76.0-114 96.8 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions. <br /> Page 18 of 19 <br />