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680 Chesapeake prtve Redwood City CA 91063 (650)364-9600 FAX(650)3649233 <br /> Sequoia 4oa H %MS t Lane Walnut Geek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 4D�- Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792 1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos CA 9407G-41 11 (650)232-9600 FAX(650)232-9612 <br /> SECOR international Project Chevron 9-6258,Stockton,CA Sampled 416/99 to 417/99 <br /> 9912 Business Park Dnve,Ste 100 Project Number 7GO07-018-01 Received 418/99 <br /> Sacramento,CA 95827 Project Manager Roger Hoffmore Reported 4122/99 <br /> Volatile Organic Compounds by EPA Method 8010B <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Anal to Number Prepared Analyzed Limits Limit Result Units Notes* <br /> MW-1 Q 45' 5904159-09 sad <br /> Ethylene dibromide 9040243 4120199 4/20199 500 ND ug/kg <br /> Bromodichloromethane 500 ND " <br /> Bromoform 5 00 ND " <br /> Bromomethane 100 ND " <br /> Carbon tetrachloride 500 ND " <br /> Chlorobenzene 500 ND <br /> Chloroethane 10 0 ND " <br /> 2-Chloroethylvinyl ether 10 0 ND " <br /> Chloroform 500 ND " <br /> Chloromethane 10 0 ND " <br /> Dibromochloromethane 500 ND " <br /> i,3-Dichlorobenzene 500 ND " <br /> 1,4-Dichlorobenzene 500 ND " <br /> 1,2-Dichlorobenzene Soo ND " <br /> WDichloroethane 500 ND " <br /> -Dichloroethane 500 ND " <br /> 1,1-Dichloroethene 5 00 ND " <br /> cis-l,2-Dichloroethene 500 ND " <br /> trans-l,2-Dichloroethene 500 ND " <br /> 1,2-Dichloropropane 500 ND " <br /> cis-1,3-Dichloropropene 500 ND " <br /> trans-1,3-Dichloropropene 500 ND " <br /> Methylene chloride 500 ND " <br /> 1,1,2,2-Tetrachloroethane 500 ND " <br /> Tetrachloroethene 500 ND " <br /> 1,1,1-Trichloroethane 500 ND " <br /> 1,1,2-Trichloroethane 500 ND " <br /> Trichloroethene 5 00 ND " <br /> Tnehlorofluoromethane 500 ND " <br /> Vinyl chloride 10 0 ND " <br /> Surrogate Bromochloromethane 600-140 690 <br /> Surrogate 2-Chlorotoluene 600-140 111 " <br /> Nuoia Analytical-Sacramento T *Refer to end of report for text of notes and definitions M <br /> Sandra R Hanson,Client Services Representative Page 7 of 23 <br />