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404 N W9get lane <br />Sequoia walnut Creek CA 94598 <br />(925) 988-9600 <br />FAX (925) 988-%73 <br />Analytical -ww sequo+alabscom <br />1 <br />Gettler Rvan hic - Dublin Pr01eLt Chevron <br />j 6747 Sierra Court Suite) Project Number Chevron 4 9-5775 Reported <br />Dublin CA 94568 Project Manager Scott Polston 18 -Apr -00 11 39 <br />Volatile Organic Compounds by EPA Method 8260A <br />Sequoia Analytical - Walnut Creek <br />Reporting <br />Andlvte Result Limit Units Dilution Batch Prepared Analyzed Method Note! <br />Eff (07 56) (W004304-01) Air <br />Sampled 12 -Apr -0007 56 <br />RCCU%ed 13 -Apr -00 17 10 <br />Benzene <br />95 <br />5 0 mrg/m' Air 10 OD 14016 14 -Apr 00 14--kpr-00 EPA 8260A <br />Brotnobenzene <br />ND <br />5 0 <br />Bromochloromethane <br />ND <br />5 0 " <br />Bromodichloromethane <br />ND <br />5 0 <br />Bromoform <br />ND <br />5 0 <br />Bromomethane <br />ND <br />10 <br />n-Butylbenzene <br />ND <br />5 0 <br />pec-Butylbenzene <br />ND <br />5 0 <br />lert-Butvlbenzene <br />ND <br />5 0 " <br />Carbon teimehlonde <br />ND <br />5 0 <br />Chlorobenzene <br />ND <br />5 0 " <br />Chloroethane <br />ND <br />10 <br />Chloroform <br />ND <br />5 0 <br />Chloromethane <br />ND <br />10 " <br />2-Chlorotoluene <br />ND <br />5 0 " <br />4-Chlorotoluene <br />ND <br />5 0 . <br />Dibromochloromethane <br />ND <br />5 0 " <br />1,2-Diibromoethane <br />ND <br />so <br />Dibromomethane <br />ND <br />5 0 " <br />1,2-Dbromo-3-chloropropane <br />ND <br />10 " <br />1,2 -Dichlorobenzene <br />ND <br />5 0 " <br />1,3 -Dichlorobenzene <br />ND <br />5 0 ^ " <br />1,4 -Dichlorobenzene <br />ND <br />so <br />Dichlorodifluoromethane <br />ND <br />10 " <br />1,1-Dichlomthane <br />ND <br />5 0 <br />1,2-Dichloroethane <br />ND <br />5 0 <br />IJ-Dichloroethene <br />ND <br />5 0 <br />cis-1,2-Dichloroethene <br />ND <br />50 " <br />trans-l,2-Dichloroethene <br />ND <br />50 " <br />1,2-Dichlorupropane <br />ND <br />5 0 " <br />1,3-Dichloropropane <br />ND <br />50 <br />2,2-Dichloropropane <br />ND <br />50 <br />l,l-Dichloropropene <br />ND <br />5 0 " <br />Ethylbenzene <br />48 <br />5 0 " <br />Hexachlorobutadiene <br />ND <br />5 0 " <br />[sopropylbenzene <br />ND <br />5 0 " <br />n-Icopropyltoluene <br />ND <br />5 0 <br />Methylene chloride <br />ND <br />20 <br />Sequoia Analytical - Walnut Creek The results in this report apply to the samples anali.ed m accordance with the chain of <br />custody document This analytical report must be reproduced in its entirety <br />Page 5 of 22 <br />