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ker <br /> Sequoia 814Stnto,CA 5834 <br /> Sacramento,CA 95&34 <br /> (916)921-9600 <br /> a_ _� Analytical WWW seguo;Sebs <br /> OM <br /> Gettler-hyan-Dublin Project TOSCO 11192,Stockton,CA 5211573 <br /> 6747 Sierra Court,Ste J Project Number N/A Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding <br /> 12/06/02 IS 34 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-5_(S211573-05)Water Sampled 11/15/02 12 39 Received 11/18/02 16.45 <br /> Teri-butyl alcohol 260 100 ug/1 1 2110445 11/27/02 11/28/02 EPA 8260B <br /> 'Di-isopropyl ether ND 20 " " " ^ " <br /> Ethyl tert-butyl ether ND 20 It I. I „ <br /> Tent-amyl methyl ether ND 20 ^ <br /> Ethanol ND 500 <br /> 1,2-Dichloroethane ND 20 <br /> 1,2-Dibromoethane(EDB) ND 20 <br /> Surrogate 1,2-DCA-d4 120% 60-140 ^ ^ <br /> MW-6 S211573-06 Water Sampled 11/15/02 10 52 Received 11118/02 16 45 _ <br /> Tert-butyl alcohol ND 100 ugA 1 2110445 11/27/02 11/28/02 EPA 8260B <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 <br /> Tert-amyl methyl ether ND 20 <br /> Ethanol ND 500 " ^ <br /> 1,2-Dichloroethane ND 20 <br /> 1,2-Dibromoethane(EDB) ND 20 <br /> Surrogate 1,2-DCA-d4 118% 60-140 ^ <br /> 16-W-7 5211573-07 Water Sampled 11/15/02 13 50 Received 11/18/02 16 45 <br /> Tert-butyl alcohol - 160000' 10000 ugA 100 2110445 11/27/02 11/28/02 EPA 8260B - LE <br /> Di-isopropyl ether ND 200 It <br /> Ethyl tert-butyl ether ND 200 It ^ " ^ <br /> Ten-amyl methyl ether ND 200 <br /> Ethanol ND 50000 <br /> 1,2-Dichloroethane ND 200 <br /> 1,2-Dibromoethane(EDB) ND 200 " <br /> Surrogate 1,2-DCA-d4 109% 60-140 " ^ <br /> Sequoia Analytical - Sacramento The results in this report apply io the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page 9 of 16 <br />