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E - <br /> Sequoia 404 N Wiget Lane <br /> Walnut Creek, CA 94.598 <br /> (925) 988-9600 <br /> Analytical FAX(925) 988-9673 <br /> Gettler Rvan,Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite 1 Project Number Tosco N 6981 Reported <br /> Dublin CA,94568-- - - - - - ---Project Manager -Deaniia L—Harding- -- -- - - --- — - I O-Fe&-00 l 100 <br /> Volatile Organic Compounds by-EPA Method 8260A <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-14 (W001654-11)Water Sampled 28-Jan-00 12 25 Received 28-Jan-00 18 20 <br /> tert-Butyl alcohol ND 100 ug/1 1 OB02018 02-Feb-00 02 Feb-00 EPA 8260A <br /> Methyl tent-butyl ether 170 20 to " <br /> Di-isopropyl ether ND 20 to " <br /> Ethyl Cert-butyl ether ND 20 " <br /> tert-Amyl methyl ether ND 20 " <br /> 1,2-Dichloroethane 88 20 " <br /> Ethylene dibroinide ND 20 " <br /> Sun-ogate Dibtnntofluotonrethane 100% 50-150 " <br /> Sunrogate 1 2-Dichloroethane-c14 112% 50-150 " <br /> MW-15(W001654-12)Water Sampled 27-Jan-00 12 40 Received 28-Jan-00 18 20 <br /> tert-Butyl alcohol ND 100 ug/l. 1 OB02018 02-Feb-00 02-Feb-00 EPA 8260A <br /> Methyl tert-butyl ether 72 20 It <br /> " <br /> Di-isopropyl ether ND 20 1. toI. » » <br /> Ethyl tent-butyl ether ND 20 11 11 " <br /> tert-Amyl methyl ether ND 20 to " <br /> 1,2-Dichloroethane ND 20 to » 1. '• <br /> Ethylene dibromide ND 20 Io " <br /> Surrogate Dibrontoflrtotontetltane 100% 50-150 " <br /> Surrogate 12-Drchlotaethane-d4 108% 50-150 <br /> MW-16(W001654-13)Water Sampled 28-Jan-0016 05 Received 284an-00 18 20 <br /> tert-Butyl alcohol 120 100 ug/l 1 OB02018 02-Feb-00 02-Feb-00 EPA S260A <br /> Methyl tent-butyl ether 130 20 It <br /> I. " <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 » » <br /> 1,2-Dichloroethane 11 20 to " <br /> Ethylene dibronude ND 20 " <br /> Sur'ogate Dibroniofluoromethane 102% 50-150 " <br /> Sun,ogate 1 2 Dichloroethane-d4 116% 50-150 " <br /> Sequoia Analytical -Walnut Creek 77ie results m this report apply to the samples analyzed in accordance xvth die chcan of <br /> document This analytical repa•t must be mproducedin rig erNt <br />''1 <br /> Alan B Keinp,LaboratoryDirector Page 11 of 20 <br />