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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget lane Walnut Creek.CA 94598 (925)988-%00 FAX(925)988-%73 <br /> 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 /> �ttler-Ryan - Dublin Client Project ID Unocal SS#5886, Stockton Sampled Mar 1, 1999 <br /> 47 Sierra Court, Suite J Sample Descrlpt Water, MW-4D Received Mar 2, 1999 <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Mar 15, 1999 <br /> Attention Deanna Harding Lab Number 903-0237 Reported Mar 24, 1999 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> rug/L lig/L <br /> Ethanol 500 N D <br /> t-Butanol 100 N D <br /> Methyl t-Butyl Ether 20 21 <br /> l-sopropy ter 20 <br /> Ethyl t-Butyl Ether (ETRE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limit % % Recovery <br /> Dlbromofluoromethane 50 150 99 <br /> 1 2-Dichloroethane-d4 50 150 84 <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> J nne Fegley <br /> ro�ect Manager <br /> 9030233 GET <8> <br />