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Sequoia %W 680 Chesapeake Drive Redwood City,CA 43 (415) 364-9600 FAX(415) 364-9233 <br /> L��J 404 N.Wiget Lane Walnut Cmek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> qcpAnalytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> URS Greiner,Inc.-SF Project: Stockton-USPS Sampled: 7/7/98 to 7/8/98 <br /> 100 California Street,Ste.500 Project Number: 43-66600.32 Received: 7/10/98 <br /> San Francisco,CA 94111 Project Manager: Chris Nelson Reported: 7/28/98 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> lAnalyte Number Prepared Analyzed Limits Limit Result Units Notes' <br /> 11--1 880712840 5911 _ <br /> Ethanol 8070283 7/20/98 7/20/98 150 ND mg/kg <br /> Tert-butyl alcohol 10.0 ND " <br /> Methyl tert-butyl ether 0.100 ND <br /> Di-isopropyl ether 0.100 ND " <br /> Ethyl tert-butyl ether 0.100 ND " <br /> Tert-amyl methyl ether 0.100 ND " <br /> Surrogate: 1,2-DCA-d4 60.0-140 180 % 2 <br /> 13:2 S807128-01 5031 <br /> Ethanol 8070283 7/20/98 7/20/98 150 ND mg/kg <br /> Tert-butyl alcohol 10.0 ND " <br /> Methyl tert-butyl ether 0.100 ND " <br /> Di-isopropyl ether 0.100 ND <br /> Ethyl tert-butyl ether 0.100 ND " <br /> Ten-amyl methyl ether 0.100 ND " <br /> Surrogate: 1,2-DCA-d4 60.0-140 154 % 2 <br /> 11:1 S907129-02 5011 <br /> Ethanol 8070283 7/20/98 7/20/98 150 ND mg/kg <br /> Tert-butyl alcohol 10.0 ND " <br /> Methyl ten-butyl ether 0.100 ND " <br /> Di-isopropyl ether 0.100 ND " <br /> Ethyl ten-butyl ether 0.100 I'm " <br /> Ten-amyl methyl ether 0.100 ND <br /> Surrogate: 1,2-DCA-d4 60.0-140 172 % 2 <br /> ILA - 8807128-03 $oil <br /> Ethanol 8070283 7/20/98 7/20/98 150 ND mg/kg <br /> Tert-butyl alcohol 10.0 ND " <br /> Methyl tert-butyl ether 0.100 ND " <br /> Di-isopropyl ether 0.100 ND " <br /> Ethyl tert-butyl ether 0.100 ND " <br /> Ten-amyl methyl ether 0.100 ND " <br /> Surrogate: 1,2-DCA-d4 60.0-140 112 % <br /> Sequoia Analytical-Sacramento *Refer to end of report for test of notes and definitions. <br /> Lida C. Schneider,Laboratory Director Page 4 of 9 <br />