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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Geek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Stoker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792 1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos CA 94070-4111 (650)232-96W FAX(650)232-9612 <br /> SECOR Intemational Project Chevron 9-6258,Stockton,CA Sampled 416/99 to 4/7/99 <br /> 9912 Business Park Drive,Ste 100 Project Number 7GO07-018-01 Received 418199 <br /> Sacramento,CA 95827 Project Manager Roger Hoffmore Reported 4122199 <br /> Volatile Organic Compounds by EPA Method 8010E <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> lAnalyte Number Prepared Analyzed Limits Limit Result Units Notes* <br /> MW-3 Cad_45' S904159-36 S" <br /> Ethylene dibromide 9040243 4/20/99 4/20199 5 00 ND ug/kg <br /> Bromodichloromethane 500 ND " <br /> Brornoform 5 00 ND " <br /> Bromomethane too ND " <br /> Carbon tetrachloride 5 00 ND " <br /> Chlorobenzene 500 ND " <br /> Chloroethane 100 ND " <br /> 2-Chloroethylvinyl ether I O 0 ND " <br /> Chloroform 5 00 ND " <br /> Chloromethane " 10 0 ND " <br /> Dibromochloromethane 5 00 ND " <br /> 1,3-Dichlorobenzene 5 00 ND " <br /> 1,4-Dichlorobenzene 5 00 ND " <br /> 1,2-Dichlorobenzene 500 ND " <br /> 01-Dichloroethane " " 5 00 ND <br /> 12-Dichloroethane 500 ND <br /> 1,1-Dichloroethene 5 00 ND " <br /> cis-1,2-Dichloroethene 500 ND " <br /> trans-1,2-Dichloroethene 500 ND " <br /> 1,2-Dichloropropane 500 ND " <br /> cis-1,3-Dichloropropene Soo ND " <br /> trans-1,3-Dichloropropene 500 ND " <br /> Methylene chloride 500 ND " <br /> 1,1,2,2-`1'etrachlororthane Soo ND " <br /> Tetrachloroethane 500 ND " <br /> j 1,1,1-Trichloroethane 500 ND " <br /> 1,1,2-Trichloroethane 5 00 ND " <br /> Trichloroethene 500 ND " <br /> j Trichlorofluoromethane 5 00 ND " <br /> Vinyl chloride 10 0 ND " <br /> Surrogate Brornochloromethane 600-140 600 % <br /> Surrogate 2-Chlorololuene " 600-140 113 <br /> Oquoia Analytical-Sacrams-ato � - 'Refer to end of report for text of notes and deN� nations <br /> Sandra R Hanson,Client Services Representative Page 13 of 23 <br />