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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 Creek 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 /> Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792 1865 FAX(707) 792-0342 <br /> ]551 Industrial Road San Carlos CA 94070-411 1 (650)232-9600 FAX(650) 232 961 Z <br /> SECOR Intematlonal Project ARCO 2133 Stockton,CA Sampled 3/18/99 <br /> 9912 Business Park Drive,Ste 100 Project Number 7G600-019-04 Received 3/18199 <br /> Sacramento,CA 95827 Project Manager Rusty Benkosky Reported 3/23/99 <br /> Volatile Organic Compounds by EPA Method 8010B <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units Notes* <br /> S-5.6.7.8(Composite) 5903251-01 Sgt] <br /> Bromodichloromethane 9030283 3/22/99 3/22/99 500 ND ug/kg <br /> Bromoform 500 ND " <br /> Bromomethane 100 ND " <br /> Carbon tetrachloride 500 ND " <br /> Chlorobenzene 500 ND " <br /> Chloroethane too ND " <br /> 2-Chloroethylvinyl ether 100 ND " <br /> Chloroform " " 500 ND " <br /> Chloromethane 100 ND " <br /> Dibromochloromethane 500 ND " <br /> 1,3-Dichlorobenzene 500 ND " <br /> 1,4-Dichlorobenzene 500 ND " <br /> 1,2-Dichlorobenzene 500 ND " <br /> 0 Dichloroethane " " 500 ND <br /> Dichloroethane 500 ND <br /> 1,1-Dichloroethene 500 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 500 ND " <br /> trans-l,3-Diehl oropropene 5 00 ND " <br /> Methylene chloride 500 ND " <br /> 1,1,2,2-Tetrachloroethane 5 00 ND " <br /> Tetrachloroethene 5 00 ND " <br /> 1,1,1-Trichloroethane 5 00 ND " <br /> 1,1,2-Trichloroethane 500 ND " <br /> Trichloroethene 500 ND " <br /> Trichlorofluoromethane Soo ND " <br /> Vinyl chloride 100 ND " <br /> Surrogate Bromochloromethane 600-140 99 0 % <br /> Surrogate 2-Chlorotoluene 600-140 110 <br /> Sequoia Analytical -Sacramento *Refer to end of report for text of notes and definitions <br /> C2221/' '1 C2 7C� �tJ <br /> Sandra R Hanson,Client Services Representative Page 4 of 9 <br />