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680 Cl`esapeake Drive Redwood City CA 94063 (650)364-7600 FAX(650)364-97-33 <br /> Sequoia 404 N utlget Lane Walnut Geek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)9Z 1-9600 FAX(916)921-0100 <br /> 4DD- Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1 55 1 Industrial Road San Carlos CA 94070-41 It (650)232 9600 FAX(650)232-9612 <br /> SECOR International Project Chevron 9-6258,Stockton,CA Sampled 416/99 to 417199 <br /> 9912 Business Park Drive,Ste 100 Project Number 7GO07-018-01 Received 4/8/99 <br /> Sacramento,CA 95827 Project Manager Roger Hoffmore Reported 4/22199 <br /> Volatile Organic Compounds by EPA Method 8010B <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> lAnalyte Number Pre aced Analyzed Limits Limit Result Units Notes* <br /> MW-2 0 10' S904159-17 SDA <br /> Ethylene dibromide 9040243 4/20/99 4/20/99 Soo ND ug/kg <br /> Bromodichloromethane 500 ND " <br /> Bromoform 500 ND " <br /> Bromomethane 100 ND " <br /> Carbon tetrachloride 500 ND " <br /> Chlorobenzene 500 ND " <br /> Chloroethane 100 ND " <br /> 2-Chloroethylvinyl ether 100 ND " <br /> Chloroform 500 ND " <br /> Chloromethane 100 ND " <br /> Dibromochloromethane 500 ND " <br /> 1,3-Dichlorobenzene 5 00 ND " <br /> 1,4-Dichlorobenzene Soo ND " <br /> 1 2-Dichlorobenzene 500 ND " <br /> 0Dichloroethane 500 ND <br /> -Dichloroethane 500 ND " <br /> 1,1-Dichloroethene 500 ND " <br /> cis-1,2-Dichloroethene Soo ND " <br /> trans-l,2-Dichloroethene 500 ND " <br /> 1,2-Dichloropropane 500 ND " <br /> cis-1,3-Dichloropropene 500 ND " <br /> trans-l,3-Dichioropropene 5 00 ND " <br /> Methylene chloride " Soo ND " <br /> 1,1,2,2-Tetrachloreethane 5 00 ND " <br /> Tetrachloroethene 500 ND " <br /> I,I,1-Trichloroethane 500 ND " <br /> 1,1,2-Trichloroethane Soo ND " <br /> Trichloroethene 500 ND " <br /> Trtchlorofluoromethane 500 ND " <br /> Vinyl chloride 100 ND " <br /> Surrogate Bromochloromethane 600-140 640 <br /> Surrogate 1-Chlorotoluene 600-140 118 " <br /> Quoia Analytical -Sacramento "Refer 10 end of report for te,,.of notes and de finaio-s <br /> ll <br /> andra R Hanson,Client Services Representative Page 8 of 23 <br />