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Sequoia 680 C"esapeake 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(9Z5)988-9673 <br /> Analytiea 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd Horth Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Pacific Environmental Group-Sac Project Unocal 0123,Tracy,CA Sampled 10/6/98 <br /> 113 15 Sunrise Gold Circle St M Project Number 910-017 1 Received 10/7/98 <br />' Rancho Cordova,CA 95742 Project Manager Mike Mitehener Re orted 10/20/98 <br /> Volatile Organic Compounds by EPA Method 8010B <br /> Sequoia Analytical-Sacramento <br />' Batch Date Date Surrogate Reporting <br /> IAnalyte Number Prepared Analyzed Limits Limit Result Units Notes" <br />' B-4 k 20' 5810080-03 SSW <br /> Bromodichloromethane 8100176 10/14/98 10/14/98 Soo ND ug/kg <br /> Sromoform " 500 ND " <br />' Bromomethane " 100 ND " <br /> Carbon tetrachloride 500 ND " <br /> Chlorobenzene 500 ND " <br /> Chloroethane 100 ND <br />' 2-Chloroethylvinyl ether " " 10 0 ND " <br /> Chloroform 500 ND " <br /> Chloromethane too ND " <br /> Dibromochloromethane 500 ND <br /> 1,3-Dichlorobenzene 500 ND " <br /> IA-Dichlorobenzene 500 ND " <br /> 12-Dichlorobenzene 500 ND " <br /> D1-Dichloroethane „ " 500 ND " <br /> ,21 -Dichloroethane 500 ND " <br /> 1,1-Dichloroethene 5 00 ND " <br />' cis-1,2-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-l,3-Dichloropropene Soo ND <br /> Methylene chloride 500 ND " <br /> 1,1,2,2-Tetrachloroethane 500 ND " <br /> Tetrachloroethene 500 ND <br />' 1,1,1-Tnehloroethane " Soo ND " <br /> 1,1,2-Trichloroethane 500 ND <br /> Trichloroethene 500 ND " <br /> Trichlorofluoromethane " " 500 ND " <br /> Vinyl chloride too ND " <br /> Surrogate Bromochloromethane 600-140 119 <br />,Surrogate <br /> 2-Chlorotoluene 600-140 74 0 " <br /> 1 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> AdaCLchneider,Laboratory Director Page 8 of 16 <br />