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Sequoia 6130 Chesapeake Dave Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N 11,1get Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> qwr Analytical 819 Striker Avenue Suite a Sacramento CA 95834 (916)9211-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Oettler-Ryan - Dublin Client Project ID Unocal SS#5886, Stockton Sampled Mar 1, 1999 <br /> 6747 Sierra Court, Suite J Sample Descrlpt Water, MW-2 Received Mar 2, 1999 <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Mar 15, 1999 <br /> Attention Deanna Harding Lab Number 903-0235 Reported Mar 24, 1999 <br /> OXYGENATED COMPOUNDS {EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> pg/L yg/L <br /> Ethanol 25,000 N D <br /> t-Butanol 5,000 N D <br /> Methyl f-Butyl Ether 100 3,700 <br /> i-sopropy ter 100 ITE <br /> Ethyl t-Butyl Ether (ETSE) 100 N D <br /> t-Amyl Methyl Ether (TAME) 100 N D <br /> Surrogates Control Limit % % Recovery <br /> Dibromofluoromethane 50 150 92 <br /> 1 2-Dlchloroethane-d4 50 150 79 <br /> • <br /> Analytes reported as N 0 were not present above the stated limit of detection Because rnatrix effects and/or other factors <br /> required additional sample dilution,detection limits for this sample have been raised <br /> SEQUOIA ANALYTICAL, #1271 <br /> PIuanne Fegley <br /> ect Manager <br /> 9030233 GET <a> <br />