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819 <br /> ker <br /> Sequoia Sacramcram nento,t ,CA Ste 4 <br /> 41) 92 95834 <br /> Analytical FAX(916)921-9604 <br /> (916)921 Q]DO <br /> www sequoialabs com <br /> Gettler-Ryan-Dublin Project Unocal 5098, Stockton,CA $210010 <br /> 6747 Sierra Court, Ste J Project Number N/A Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 10/14/02 18 46 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - Sacramento <br /> - Reporting Spike Source %REC RPD <br /> Analyte <br /> Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 2100085- EPA 5030B jPrrl <br /> Blank(2100085-BLKI) - Prepared& Analyzed 10/05/02 u <br /> Chlorobenzene ND 0 50 ugA <br /> Chloroethane ND 0 50 " <br /> Chloroform ND 050 " <br /> Chloromethane ND 0 50 <br /> 2-Chlorotoluene ND 0 50 " <br /> 4-Chlorotoluene ND 0 50 " <br /> Dibromochloromethane ND 0 50 " <br /> 12-Dibromoethane(EDB) ND 0 50 <br /> Dibromomethane ND 0 50 <br /> 12-Dibromo-3-chloropropane ND 10 11 <br /> 1,2-Dichlorobenzene ND 0 50 <br /> 1,3-Dichlorobenzene ND 0 50 <br /> 1,4-Dichlorobenzene ND 050 <br /> Dichlorodifluoromethane ND 050 <br /> I I-Dichloroethane ND 0 50 " <br /> 1,2-Dichloroethane ND 0 50 " <br /> 1,I-Dwhlnroethene Nib n Sil " <br /> cis-1,2-Dichloroethene ND 0 50 <br /> trans-1,2-Dichl6roethene ND 0 50 T <br /> 1,2-Dichloropropane ND 050 <br /> 1,3-Dichloropropane ND 050 " <br /> 22-Dichioropropane---_ _ _ _ =ND--=- -- 050 - - - - --- — - <br /> 1,1-Dichloropropene ND 0 50 " <br /> Ethylbenzene ND 050 <br /> —Hexachlorobutadiene— --..-_—ND— -_1 0.__ <br /> lsoprapylbenzene - NII 0 SO <br /> p-Isopropyltoluene ND 050* " <br /> Methylene chloride ND 10-- <br /> Methyl <br /> 0Methyl tert-butyl ether ND- 050 " <br /> ]naphthalene ND 10 <br /> n-Propylbenzene ND 0 50 " <br /> Styrene ND 050 " <br /> 1,1,1,2-Tetrachloroethane ND 0 50 <br /> -1,1,2,2-Tetrachloroethane _ ND I-0 <br /> Te,trachloroethene--- -- - - -- - ----- - -ND - 0 S0 <br /> Toluene ND 050 <br /> Sequoia Analytical- Sacramento The results in this report apply to 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 107 of 119 , <br />