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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <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 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> *ttler-Ryan -Dublin Client Project lD Tosco 88#6981, Stockton Sampled Apr 19-20, 1999 <br /> 6747 Sierra Court, Suite J Sample Descript Water, PTW-1 Received Apr 21, 1999 <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Apr 29, 1999 <br /> Attention Deanna Harding Lab Number 904-1868 Reported May 14, 1999 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> N9/L N9/L <br /> Ethanol 500 N D <br /> t-Butanol 100 N D <br /> Methyl t- u y ter 20 3 <br /> Di-Isopropyl ter 20 <br /> Ethyl t-Butyl Ether (ETBE) 20 N D <br /> t-Amyl Methyi Ether (TAME) 20 N D <br /> Surrogates Control Limit % % Recovery <br /> Dibromofluoromethane 50 150 84 <br /> 1,2-0ichloroethane-d4 50 150 104 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> �r ' <br /> SLC. <br /> J Iianne Fegley <br /> Project Manager <br /> 9041854 GET <17> <br />