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Sequoia <br />Analytical <br />r <br />404 N Wiget Lane <br />Walnut Geek CA 94598 <br />(925) 988-9600 <br />FAX (925) 988-9673 <br />www sequolalabs com <br />Gettler Ryan, Inc -Dublin. Project Chevron <br />6747 Sierra Court Suite J Project Number Chevron # 9-5775 Reported <br />Dublin CA, 94568 Project Manager Scott Polston 25 -Jul -00 10 44 <br />Volatile Organic Compounds by EPA Method 8260A <br />Sequoia Analytical Walnut Creek <br />Reporting <br />Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br />Eff(W007080-01) Water Sampled 06.1ul-00 11 30 Received 06 -Jul -00 l3 45 A -01a <br />1,1,2-Tnchloroethane <br />ND <br />20 ugll l 0G08002 08 -Jul -00 08 -Jul -00 EPA 8260A <br />Tetrachloroethene <br />ND <br />20 " <br />1,3-Dichloropropane <br />ND <br />20 <br />Dibromochloromethane <br />ND <br />20 " <br />1,2-Dibromoethane <br />ND <br />20 " <br />Chlorobenzene <br />ND <br />20 " <br />Ethylbenzene <br />ND <br />20 " <br />Total Xvlenes <br />ND <br />20 " <br />1,1,1,2 -Tetrachloroethane <br />ND <br />20 " <br />Styrene <br />ND <br />2 6 " <br />Bromoform <br />ND <br />2 4 " <br />Isopropylbenzene <br />ND <br />2 4 " <br />1,1,2,2 -Tetrachloroethane <br />ND <br />2 0,Nk" <br />mmobenzene <br />ND <br />2 0 <br />Propylbenzene <br />ND <br />2 0 " <br />1,2,3-Tnchloropropane <br />ND <br />2 0 " <br />2-Chlorotoluene <br />ND <br />2 0 " <br />1,3,5-Tnmethylbenzene <br />ND <br />2 0 " <br />4-Chlorotoluene <br />ND <br />2 0 " <br />tert-Butylbenzene <br />ND <br />20 " <br />1,2,4-Trtiiiethylbenzene <br />ND <br />2 0 " <br />sec-Butylbenzene <br />ND <br />20 " <br />p-Isopropyltoluene <br />ND <br />20 " <br />1,3 -Dichlorobenzene <br />ND <br />20 " <br />1,4 -Dichlorobenzene <br />ND <br />20 " <br />n-Butylbenzene <br />ND <br />20 <br />1,2 -Dichlorobenzene <br />ND <br />20 " <br />1,2-Dibromo-3-chloropropane <br />ND <br />5 0 " <br />1,2,4-Trichlorobenzene <br />ND <br />20 " <br />Naphthalene <br />ND <br />10 " <br />Hexachlorobutadiene <br />ND <br />10 " <br />1,2,3-Tnchlorobenzene <br />ND <br />20 " <br />Surrogate Dibromofluoromethane <br />100% <br />50-150 " <br />Surrogate 12-Dichloroethane-d4 <br />104% <br />50-150 " <br />Surrogate Toluene -d8 <br />960% <br />50-150 <br />Surrogate 4-Bromofluorobenzene <br />960% <br />50-150 <br />0 eduoia Analytical - Walnut Creek The results in tins report apply to the samples analyzed in accordance with the chain of <br />custody document This analytical report must be reproduced to as entirety <br />Page 6 of 25 <br />