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Sequoia 680 Chesapeake Drive Redwood Gty CA 94063 (650)364-9600 FP K(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 " (925)988-9600 FAX(9Z5)988.-9673 <br /> 4 $19 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 4� - Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (797)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carios CA 94070-4111 (650)232 9600 FAX(650)232-9612 <br /> 0 <br /> SECOR International Project Chevron 9-6258,Stockton,CA Sampled 416199 to 417199 <br /> 9912 Business Park Drive,Ste 100 Project Number 7GO07-018-01 Received 4/8199 <br /> Sacramento,CA 95827 Project Manager Roger Hoffmore Reported 4/22/99 <br /> Volatile Oxygenate Compounds by EPA Method 8260A <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Anal to Number Prepared Analyzed Limits Limit Result Units Notes" <br /> MW-1 Q-10! 5904159-02 S211 <br /> Tert-butyl alcohol 9040173 4115199 4115199 100 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 /> Tert-amyl methyl ether 0 100 ND " <br /> Ethanol 150 ND " <br /> Surrogate 12-DCA-d4 600-140 940 % <br /> M3Y-1 (a7 25' 5904159-05 Soli <br /> Tert-butyl alcohol 9040173 4/15/99 4115199 100 ND mg/kg <br /> Methyl tent-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 /> "I 150 ND " <br /> rrogate 12-DCA-d4 600-140 924 % <br /> DIA-1 n 45' 5904159-09 5911 <br /> Tert-butyl alcohol 9040173 4/15/99 4115199 100 ND mg/kg <br /> Methyl tert-butyl ether 0 100 ND " <br /> Di-tsopropyl ether 0 100 ND " <br /> Ethyl tert-butyl ether 0 100 ND " <br /> Tert-amyl methyl ether 0 100 ND " <br /> Ethanol I50 ND " <br /> Surrogate 11-DCA-d4 " 600-140 940 % <br /> HW-2 J 10' 5904159-17 5411 <br /> Tert-butyl alcohol 9040173 4/15/99 4115/99 100 ND mg/kg <br /> Methyl tert-butyl ether 0 100 ND " <br /> Di-isopropyl ether 0 100 ND " <br /> Ethyl tent-butyl ether 0 100 ND " <br /> Tert-amyl methyl ether 0 100 ND " <br /> Ethanol I50 ND " <br /> Surrogate 1 2-DCA-d4 600-140 944 % <br /> MW-2 25' 5904159-20 SSW <br /> Tert-butyl alcohol 9040173 4115199 4/15199 100 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 /> ert-amyl methyl ether 0 100 ND " <br /> quota.Analytical-5 icramento 'Refer is end of report f.)r tex,fnotes and definitions <br /> Sandra R Hanson,Client Services Representative Page 14 of 23 <br />