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I .. <br /> IJ <br /> Chesapeake Drive Redwood City,CA 94063 (650)364-9600 <br /> Sequoiat 3 <br /> 404 N. Wiget Lane Walnut Creek,CA 94598 !9251 988-9600 - FAX(92507 988-963 <br /> f 819 Striker Avenue,Suite 8' Sacramento.CA 95834 (91'6)92.1-9600 FAX(916)92 1-0100 <br /> 1455 McDowell Blvd. North.Ste. D Petaluma,CA 94954 . 707 792-1865 <br /> . ( ) FAX 707 <br /> Ana�.ytica�. t }792-0342 <br /> 1551 Industrial Road San Carlos.,CA 94070-41 11. (650)232-9600 FAX(650)232-9612 <br /> Pinnacle-C . Project: ARCO,5469,Stockton CA' Sampled: 2/1 1/99 <br /> 3939 Cambridge Road,Ste. 220 r Project Number: N/A Received: 2112/99 <br /> Cameron Park,CA 95682 Project Manager: Mark Capps Reported: 3/1/99 <br /> Volatile Organic Compounds by.EPA Method 8260A <br />� Sequoia Analytical—Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte ' Number Prepared Analyzed Limits Limit Result Units Notes* <br /> PIS-1 (4'1 S202174-01 <br /> Tert-butyl alcohol 9020206 2/17/99 2/17/99 10.0 ND mg/kg <br /> Methyl tert-butyl ether 0.100 0.731 <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-DCA44 " 60.0-140 92.4 <br /> 1 <br /> PL--2(3.5,)- - <br /> S902174-02 SAW <br /> A <br /> ,.Tert=butyl alcohol 9020206 2/17/99 2/17/99 10.0 ND mg/kg <br /> Methyl tert-butyl ether 0.100 2.64 " <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:_ 98.8 <br /> S902174-03, SQII <br /> Tert-butyl alcohol 9020206 2/17/99 2/17/99 ; ,10"0 ND mg/kg <br /> Methyl tert-butyl ether 0.100 ND " <br /> Di-isopropyl ether 0.100 ND " <br /> Ethyl tert-butyl ether 0.100 ND " <br /> Tertamyl methyl ether 0.100 ND " <br /> Surrogate: 1,2-DCA-d4 60:0-140 101 <br /> PL-4:(3.3') S902114-04 S <br /> Ter-butyl alcohol 9020206 2/17/99 2/17/99 E0.0 ND mg/kg <br />;'Methyl tert-butyl ether 0.100 „ ND " <br /> Di-isopropyl ether <br /> 0.100 ND <br /> 'Ethyl tert-butyl ether " „ <br /> 0.100 ND <br />€Ten-amyl methyl ether 0.100 D " <br />' N <br /> 'Surrogate: 1,2-DCA-d4 60.0-'140 9N % <br /> PL-5 14'1 <br /> i S902I74 <br /> Tert-butyl alcohol 9020206 2/17/99 2/17/99 10.0 ND mg/kg <br />.Methyl tent-butyl ether "' „ <br /> 0.100- 0,186 <br />!Di-isopropyl ether 0.100 ND <br /> Ethyl tert-butyl ether 0.100 ND " <br />�. , . <br />[Sequoia Analytical-Sacramento *Refer to end of report for text'of notes and definitions. <br /> Ronald W. Bobel,Client Services Represeh live Page 7,of]5 <br />