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Sequoia <br />Analytical <br />Gettler Rvan Inc -Dublin Project Chevron <br />6747 Sierra Court Suite J Project Number Chevron # 9-5775 <br />Dublin CA 94568 Project Manager Scott Polston <br />Volatile Organic Compounds by EPA Method 8260A <br />Sequoia Analytical - Walnut Creek <br />404 N Wiget Lane <br />Walnut Creek CA 94598 <br />(925) 988-9600 <br />FAX (925) 988 9673 <br />www sequoialabs com <br />Reported <br />18 -Apr -00 11 39 <br />Reporting <br />Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br />Eff (15 15) (W004304-03) Air Sampled <br />12 -Apr -00 15 15 <br />Received <br />13 -Apr -0017 10 <br />trans- l,2-Dichloroethene <br />ND <br />50 mem' Air 10 OD14016 14 -Apr 00 14 -Apr -00 EPA 8260A <br />1,2-Dtchloropropane <br />ND <br />so <br />" <br />13-Dichioropropane <br />ND <br />50 <br />" <br />2 2-Dichloropropane <br />ND <br />50 <br />" <br />1,1-Dichloropropene <br />ND <br />50 <br />Ethylbenzene <br />200 <br />5 0 <br />Hexachlorobutadiene <br />ND <br />5 0 <br />[sop ropy [benzene <br />6 1 <br />5 0 <br />" <br />p-Isopropyltoluene <br />ND <br />5 0 <br />" <br />Methylene chloride <br />ND <br />20 <br />" <br />Naphthalene <br />ND <br />10 <br />" <br />n-Propylbenzene <br />20 <br />5 0 <br />" <br />Styrene <br />ND <br />5 0 <br />" <br />1,1,1,2 -Tetrachloroethane <br />ND <br />50 <br />" <br />1,1,2,2 -Tetrachloroethane <br />ND <br />50 <br />Tetrachloroethene <br />ND <br />5 0 <br />Toluene <br />730 <br />25 <br />50 <br />1,2,3-Tnchlorobenzene <br />ND <br />5 0 <br />10 " <br />1,2,41-Tnchloroberizene <br />ND <br />5 0 <br />" <br />1,1,1-Tnchloroethane <br />ND <br />50 <br />" <br />1,1,2-Tnchloroethane <br />ND <br />5 0 <br />Trichloroethene <br />ND <br />5 0 <br />" <br />Tnchlorofluoromethane <br />ND <br />10 <br />" <br />1,2,3-Tnchloropropane <br />ND <br />50 <br />" <br />1,2,4-Trimethylbenzene <br />85 <br />50 <br />1,3,5-Trimethylbenzene <br />35 <br />5 0 <br />Vinyl chloride <br />ND <br />5 0 <br />Total Xylenes <br />410 <br />5 0 <br />" <br />Surrogate Dibromofiuoromethane <br />104% <br />70-130 " <br />Surrogate 12-Dichloroethane-l4 <br />960% <br />70-130 " <br />Surrogate Toluene -d8 <br />154% <br />70-130 S-04 <br />Surrogate 4-Sromofluorobenzene <br />960% <br />70-130 " <br />Sequoia Analytical - Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document This analytical report must be reproduced in its entiretyve <br />Page 9 of 22 <br />