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Sequoia Waln�'945 <br /> (925)988-96W <br /> Analytical FAX(925) co73 <br /> rn FAX <br /> sequolalabs alabs om <br /> Gettler Ryan,Inc -Dubhn Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco#4409 Reported <br /> Dubhn CA,94568 Project Manager Deanna L Harding 06-Feb-01 17 21 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical -Walnut Creek <br /> Reportmg <br /> Analyte Result Lumt Unrts Dilution Batch Prepared Analyzed Method Notes <br /> MW-1(W101522-02)Water Sampled 22Jan-0111 05 Received 23-Jan-01 16 00 <br /> Ethanol ND 500 ug/l 1 IA24014 24-Jan-01 24-Jan-01 EPA 9260B <br /> tert-Butyl alcohol ND 50 " <br /> Methyl tert-butyl ether ND 20 <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 <br /> tert-Amyl methyl ether ND 20 <br /> 1,2-Dichloroetlum ND 20 " ^ <br /> Ethylene dibromide ND 20 <br /> Surrogate Dibromofluoromethane 110% 50-150 <br /> Surrogate 1,2Dichloroethane-i4 .930% 50-150 ^ ^ <br /> MW-2(W101522-03)Water Sampled 22-Jan-011030 Received 23-Jan-01 16 00 <br /> Ethanol ND 500 ugd 1 1A24014 24-Jan-ol 24-Jan-01 EPA 8260B <br /> tert-Butyl alcohol ND 50 " ^ <br /> Methyl tent butyl ether ND 20 " ^ <br /> Di-isopropyl ether ND 20 " ^ <br /> Ethyl tent butyl ether ND 20 <br /> tertAmyl methyl ether ND 20 ^ " <br /> 1,2-Dichloroethane ND 20 <br /> Ethylene dibromide ND 20 <br /> Surrogate Dibromofluoromed mte 113% 50-150 " ^ <br /> Surrogate 1,2-D:chloroethane-i4 974% 50-150 ^ ^ <br /> MWJ(W101522-04)Water Sampled 22Jan-01 1140 Received 23Jan-01 16 00 <br /> Ethanol ND 500 ugA 1 1A24014 24-Jan-0I 24-Jan-01 EPA8260B <br /> tent-Butyl alcohol ND 50 <br /> Methyl tent-butyl ether 18 20 <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 <br /> tertAmyl methyl ether ND 20 <br /> 1,2-Dichloroedme ND 20 <br /> Ethylene dibromide ND 20 <br /> Surrogate Dibromofluoromethane 114% 50-150 ^ ^ ^ <br /> Surrogate 1,2-Dichlor+oetlwne-d4 978% 50-150 <br /> Sequoia Analytical-Walriut Creek The results in rias report apply to the swnples mudwed in accondm ce with the chain of <br /> custody document This mudocal reporl must he ivproduced in its enIIre <br /> Page 3 of 12 <br />