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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 4D 404 N Wiget Cane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> fi�ll� <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916)92t-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ler-Ayan -0661in V Client Project ID Unocal 8S#5098, Stockton Sampled Dec 22, 1998 <br /> 47 Sierra Court, Suite J Sample Descrlpt Water, MW-15 Received Dec 23, 1998 <br /> { Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Jan 5, 1999 <br /> 'Attention Deanna Harding Lab Number 812-2070 Reported Jan 13, 19991, <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> Ng/L 119/L <br /> Ethanol 500 N D <br /> t-Butanol 100 N D <br /> Methyl t-Butyl Ether (MTBE) 20 N D <br /> DI-Isopropyl Ether(DIPE) 20 N D <br /> Ethyl t-Butyl Ether(ETRE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limit % % Recovery <br /> 1,2-Dichloroethane-d4 50 150 94 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> ianne Fegley <br /> Project Manager <br /> 8122064 GET <I 0;, <br />