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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> S e qu o 1 a 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 4 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865(i) FAX(707)792-0342 <br /> WW1551 Industnal Road San Carlos CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> Pacific Environmental Group-Sac Project Chevron, 1001621 Banta CA Sampled 2123199 <br /> 11315 Sunrise Gold Circle St M Project Number 920 002 2D Received 2126199 <br /> Rancho Cordova,CA 95742 Project Manager Chris Brown Reported 3112199 <br /> Volatile Oxygenate Compounds by RPA Method 8260A <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units Notes* <br /> MW2 S902349- 2Waie>• <br /> 200 ND ug/1 <br /> 9030064 315199 315199 <br /> Teri-butyl alcohol I. <br /> Methyl tert-butyl ether 200 ND <br /> Di-isopropyl ether " 200 ND <br /> Ethyl tert-butyl ether " " 200 ND <br /> Tert-amyl methyl ether 200 ND <br /> Ethanol 3000 ND <br /> Surrogate 1,2-DCA-d4 600-140 104 % <br /> MW 5292 43 9-03 JAL <br /> Tert-butyl alcohol 9030064 315199 315199 1000 ND ugll D <br /> Methyl ter't-butyl ether 100 594 D <br /> D1-isopropyl ether 100 ND D <br /> ert-butyl ether 11 10 0 '1 D <br /> 10 0 355 1 <br /> myl methyl ether 1 D <br /> Ethanol 15000 ND D <br /> Surrogate 12-DCA-d4 600-140 112 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Sandra k-flanson,Client Services Representative Page 9 of 17 <br />