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• Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 3649600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> folly Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma_CA 94954 (707) 792-1865 FAX(707)792-0342 <br /> ettler-Ryan- Dublin Client Project ID Unocal SS#5888, Stockton Sampled Mar 1, 1999 <br /> 47 Sierra Court, Suite J Sample Descrlpt Water, MW-4S Received Mar 2, 1999 <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Mar 15, 1999 <br /> Attention Deanna Harding Lab Number 903-0238 Reported Mar 24, 1999 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> lig/L Ng/L <br /> Ethanol S00 N D <br /> t-Butanol 100 N D <br /> Methylt-13utyl Etfier 20 31 <br /> Di-Isopropyl ter 20 <br /> Ethyl t-Butyl Ether (ETBE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limit % % Recovery <br /> Dibromofluoromethane 50 150 99 <br /> 1,2-Dlchloroethane-d4 50 150 83 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL,#1271 <br /> 44 <br /> tJ anne(~egleyect Manager <br /> 9030233 GET <9> <br />