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819 Sinker Ave Ste 8 <br /> Sequoia Sacramento CA 95834 <br /> 4:D (916)921-9600 <br /> �► Analytical FAX(916)921-0100 <br /> www sequoialahs cam <br /> I <br /> Gettler-Ryan-Dublin Project Former Unocal 5098,Stockton,CA S302592 <br /> 6747 Sierra Court, Ste 3 Prosect Number NIA Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 03/10/03 17 17 <br /> Vo)atile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - Sacramento i <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-16 5302592-18RE1 Water Sampled 02/19/03 11 55 Received 02/24/03 15 30 <br /> _J <br /> Benzene 500 50 ug/l 10 3030025 03/04/03 03/04/03 EPA 8260B <br /> Surrogate Dl bromofluoromethone 92% 70-130 <br /> Surrogate 1,2-DCA-d4 89% 70-130 <br /> Surrogate Toluene-d8 112% 70-130 " <br /> Sur rogate 4-BFB 115% 70-130 <br /> MW-l7(S302592-19)Water Sampled 02/19/0311 15 Received 02/24/03 15 30 <br /> Teri-butyl alcohol ND 100 ug/l 1 3020415 02/28/03 02/28/03 EPA 826013 <br /> Di-isopropyl ether ND 2 0 <br /> Ethyl tent-butyl ether ND 2 0 " <br /> Tert-amyl methyl ether ND 2 0 " <br /> 1,2-Dichloroethane ND 20 <br /> 1,2-Dibromoethane(EDB) - ND 2 0 <br /> Surrogate 1,1-DCA-d4 98% 60-140 " <br /> Bromobenzeiie ND 0 50 " <br /> Bromochloromethane ND 050 <br /> Bromodichloromethane ND 050 " <br /> Bromoform ND 0 50 " <br /> Bromomethane ND 10 - <br /> - n-Butyltrenzene NI) 0 50 <br /> .sce-Butylbenzene —ND—0 50 <br /> tent-Butylbenzene ND 050 " <br /> ..Carbon tetrachloride --_-- -- _ _ ND --O 50 _''__ <br /> Chlorobenzene ND 050 " <br /> - Chloroethane - ----- - --- -=-----ND -- —050-- <br /> Chloroform <br /> 050--Chloroform ND 050 <br /> Chloromethane ND l4 " <br /> —_2-Chlorotoluene— _ - _ _ _ ND 050 <br /> 4-Chlorotoluene ND 050 <br /> Dibromochloromethane ND 050 <br /> - 1,2-Dibromoethane(EDB) ND 050 - - <br /> Dibromomethane ND 0 50 " <br /> l,2-Dibromo-3-chlor0pr0panc ND 10 <br /> 1,2-Dichlorobenzene ND 0 50 I <br /> 1,3-Dichlorobenzene ND 0 50 " <br /> 1,4-Dichlorobenzene ND 050 " <br /> Dichlorodifluoromethane ND 0 50 <br /> 1,1-Dichloroethane ND 0 50 " <br /> LL 1,2-Dichloroethane _ - - - ND� 050 <br /> l,l-Dichloroethene ND 050 <br /> i <br /> Sequoia Analytical - Sacramento The results in this report apply to the samples analyzed to accordance with the chatty of <br /> custod),document Unless otherwise stated results are r epor red on a wet weight basis <br /> This analytical r eport must be reproduced in its entirety <br /> Page 62 of 126 <br />