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680 C ncsapeake Drive Redwood City CA 9406 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (925)9a8-9600 FAX(925)988 9673 <br /> Analytical 819 51rlker Avenue Suite 8 5acramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br />' Pacific Environmental Group-Sac Project Unocal 0123,Tracy,CA Sampled 1016198 <br /> 11315 Sunrise Gold Circle St M Project Number 910-017 IIA Received 1017/98 <br /> Rancho Cordova,CA 95742 Project Manager Mike Mitchener Reported 10/20/98 <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 Not <br /> SP-1-1„2,3.4(Composite) 5810079-01 S" <br /> Bromodichloromethane 8100176 10/14/98 10/14/98 5 00 ND ug/kg <br /> Bromoform 5 00 ND " <br /> Bromomethane 100 ND " <br /> ' Carbon tetrachloride " " 5 00 ND " <br /> Chlorobenzene 5 00 ND " <br /> Chloroethane 10 0 ND " <br /> ' 2-Chloroethylvinyl ether 100 ND 11 <br /> Chloroform. 5 00 ND " <br /> Chloromethane 100 ND <br /> Dtbromochloromethane 5 00 ND " <br /> 1,3-Dichlorobenzene 500 ND ' <br /> i,4-Dichlorobenzene 500 ND <br /> 1,2-Dichlorobenzene 5 00 ND " <br /> WI I-Dichloroethane 5 00 ND " <br /> ,2-Dichloroethane " " " 5 00 ND " <br /> 1,I-Dichloroethene 5 00 ND " <br /> cis-1,2-Dichloroethene Soo ND ' <br /> trans-1,2-Dichloroethene " 5 00 ND <br /> 1,2-Dichloropropane 5 00 ND <br /> cis-1,3-Dichloroproperie 5 00 ND <br /> trans-l,3-Dichloropropene 5 00 ND <br /> ' Methylene chloride " " 50 0 ND " <br /> 1,1,2,2-Tetrachloroethane 5 00 ND <br /> Tetrachloroethene 5 00 ND <br /> ' 1,1,1-Trichloroethane 5 00 ND 'I <br /> 1,1,2-Trichloroethane 5 00 ND " <br /> Trichloroethene 5 00 ND <br /> Trichlorofluoromethane Soo ND " <br /> ' <br /> Vinyl chloride 10 0 ND " <br /> Surrogate Bromochloromethane 600-140 118 <br /> Surrogate 2-Chlorololuene 600-140 83 0 <br /> 1 <br /> 1 <br /> 1 <br /> rSeq7uoia­Analytical-Sacramento *Refer to end of report for text of noles and definrlions <br /> �J <br /> A.,daSc eider,Laboratory Director Page 5 of 13 <br /> V <br />