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S <br /> ! Sequoia 819n-W,Av9%34r '� Sacra�n(916 92 gO <br /> 95834 <br /> m FAX(916)921-0101) <br /> WO Analytical ,,,,,yseq-Wabsemn <br /> F <br /> Gettler-Ryan-Dublin Project Former Unocal 2859,Stockton,CA 5305466 <br /> 6747 Sierra Court,Ste ] Project Number NIA r Reported <br /> Dublin CA,94568 Project Manager Deanna L'Harding., 06/03/03 1841 <br /> r <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-14(5305466-15)Water Sampled 05119/03'11 40 Received-05/19/03 17.10 <br /> Tert-butyl alcohol ND , 5 0 ug/l 1 3050528 -05131/03 05/31/03 EPA 8260B <br /> Methyl tent-butyl ether ND 0 50 " <br /> Dl-isopropyl ether ND 050 to <br /> Ethyl tert-butyl ether ND 050 to to " toto <br /> Tert-amyl methyl ether ND 050 " <br /> 1,2-Dichloroethane ND 050 " <br /> 1,2-Dibromoethane(EDB) ND 050 <br /> Surrogate 1,2-DCA-d4 - 113% 60-140 " <br /> MW-15(5305466-16)Water Sampled 05/19/03 14 00 Received 05/19/03 17_•10 <br /> Tert-butyl alcohol ND Y 50' ugll 1 3050528 05/31/03 05/31/03 EPA 8260B <br /> Methyl tert-butyl ether ND 050 to ' " to " <br /> Di'isopropyl ether _ ND 050 - <br /> Ethyl tert-butyl ether ND 050 " <br /> Tert-amyl methyl ether r ND 0 50 to to - " I. " <br /> 1,2-Dichloroethane ND 056 " <br /> 1,2-Dibromoethane(EDB) ND 050 to _ <br /> Surrogate 1,2-DCA-d4 83% 60-140 ff to " <br /> MW-16(5305466-17)Water Sampled 05/19/03 13 40 Received 05/19/03 17 10 <br /> Tent-butyl alcohol ND 5 0 ug/l 1 3050528 05/31/03 05/31/03 EPA 8260B , <br /> Methyl tert-butyl ether ND 0-50 <br /> __Di-isopropyl ether - ND 050 1 to " <br /> Ethyl tart-butyl ether —--------�--.—_ND_— — 0 50-- "---.r-,"�=•=�=n=------ -—�.----"=r- —=-"----- -- - - - <br /> - Tert-amyl methyl ether T,��-- M-_ �- -ND---_ _— OW _ <br /> 1,2-Dichloroethane ND 050 <br /> 1,2-Dibromoethane(EDB) ND 050 " 1. <br /> Surrogate 1,2-DCA-d4 81 % 60-140 10 " <br /> Sequoia Analytical- Sacramento The results in this report apply to the samples analyzed in accordance with the chain <br /> custody document Unless otherwise staled results are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page 12 of 20 <br />