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S (] 680 Chesapeake Dnve Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> equoia 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 1 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)92 t-0100 <br /> Ar]alytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707) 792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos CA 94070-41 11 (650)232-9600 FAX(650)232-9612 <br /> • <br /> Sequoia Analyticai-San Carlos Project N/A Sampled 4/14/99 <br /> 1551 Industnal Blvd Project Number (WO#L904195) Received 4/20/99 <br /> San Carlos,CA 94070 Project Manager Mike Gregory Reported 4/30/99 <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 /> L904195-10(VEW31 $904259-10 Water <br /> Bromodichloromethane 9040360 4/28/99 4128199 0 500 ND ugll <br /> Bromoform 0 500 ND " <br /> Bromomethane 100 ND " <br /> Carbon tetrachloride 0 500 ND " <br /> Chlorobenzene 0 500 ND " <br /> Chloroethane 100 ND " <br /> 2-Chl oroethyl vinyl ether 1 00 ND " <br /> Chloroform 0 500 ND " <br /> Chloromethane 100 ND " <br /> Dibromochloromethane 0 500 ND " <br /> 1,3-Dichlorobenzene 0 500 ND <br /> 1,4-Dichlorobenzene 0 500 ND " <br /> 1,2-Dichlorobenzene 0 500 ND " <br /> chloroethane " 0 500 ND <br /> chloroethane 0 500 ND <br /> 1,1-Dichloroethene 0 500 ND " <br /> cis-1,2-Dichloroethene 0 500 6 58 " <br /> trans-1,2-Dichloroethene 0 500 ND " <br /> 1,2-Diehl oropropane 0 500 ND " <br /> cis-1,3-Dichloropropene 0500 ND <br /> trans-1,3-Dichloropropene 0 500 ND <br /> Methylene chloride 5 00 ND " <br /> 1,1,1,2-Tetrachloroethane 0500 ND " <br /> Tetrachloroethene 0 500 0 630 " <br /> l,1,1-Trichloroethane 0 500 ND " <br /> 1,1,2-Trichloroethane 0 500 ND " <br /> Trichloroethene 0 500 17 6 " <br /> Trichlorofluoromethane 0 500 ND " <br /> Vinyl chloride l 00 ND " <br /> Surrogate Brornochloromethane 700-130 82 0 % <br /> Surrogate 2-Chlorotoluene 700-130 108 <br /> 0 <br /> Sequoia Analytical- Sacramento *Refer to end of report for text of notes and definitions <br /> Sandra R Hanson, Client Services Representative Page 5 of 10 <br />