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4DSequoia 819 Striker Ave Ste 8 <br /> Sacramento,CA 95834 <br /> Analytical (916)921-9fi00 <br /> FAX{916)921 <br /> -010 <br /> r <br /> er-Rvan-Dublin Project Former Unocal 5098,Stockton,CA 5212135 <br /> Sierra Court,Ste J Project Number NIA Reportedin CA,94568 Project Manager Deanna L Harding 12/27/02 14 14 <br /> Volatile Organic Compound`s by EPA Method 8260B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-11 S212135-13 Water Sampled 12/03/02 12.25 Received 12/05/02 12 50 ' <br /> Tert-butyl alcohol ND 100 ug/l 1 2120259 12/16/02 12/17/02 EPA 8260B <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-Dichloroethane ND 20 " <br /> 1,2-Dibromoethane(EDB) ND 20 <br /> Surrogate 12-DCA-d4 97% 60-140 <br /> Benzene 2500 10 20 12/17/02 " <br /> Bromobenzene ND 050 1 12/17/02 " <br /> Bromochloromethane ND 050 11 " " " <br /> Bromodichloromethane ND 050 11 <br /> Bromoform ND 050 <br /> Bromomethane ND _ 10 " " " - " It If <br /> a-Butylbenzene 39 050 <br /> sec-Butylbenzene ND 050 <br /> tert-Butylbenzene ND 050 <br /> Carbon tetrachloride ND 050 " <br /> Clilorobenzene ND 050 <br /> -- <br /> Chloroethane-==- - -==ND 050= <br /> Chloroform ND 050 <br /> -Chloromethane- - - -- - - --- ---ND - -�=0 50—„- <br /> 2-Chlorotoluene ND 050 <br /> 4-Chlorotoluene ND 050 <br /> Dibromochloromethane ND 050 <br /> 1,2-Dibromoethane(EDB) ND 050 ” <br /> Dibromomethaiie- — s_ _� �ND- .0 50 -,_ u " - -- - - • - „ - --- „ -- - - - - - �. <br /> 1,2-Dibromo-3-chloropropane ND 1 Q <br /> 1 2-Dichlorobenzene ND 050 " <br /> 1,3-Dichlorobenzene ND 050 " <br /> 1,4-Dichlorobenzene ND 050 <br /> Dichlorodifluoromethane ND 050 <br /> 1,1-Dichloroethane ND 050 <br /> 1,2-Dichloroethane ND 050 " <br /> 1,1-Dichloroethene ND 050 It <br /> cis-1,2-Dichloroethene ND 050 " " " " " " <br /> _ - -trans-l,2-Dichloroethene - - - - - -ND -05()-- <br /> Sequoia <br /> -050--Sequoia Analytical-Sacramento The results in this report apply to the samples analvzed in accordance with the chain <br /> of custody document Unless otherwise stated results are reported on a wet weight <br /> basis This analytical report must be reproduced In its entirety <br /> 38 of 102 <br />