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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> Sequoia 404 N Wiger Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 600 FAX(916)921-0100 <br /> Analytical sig Striker Avenue Suitt t Sacramento 9 95834 (707)792 1865 FAX(707)792-0342 <br /> 1455 McDowell Blvd North,Ste b Petaluma.CA 94954 ( ) <br /> V Y p v h Sam led 5eb'22, 1999' <br /> ler-Ryan - Dublin <br /> v Client Protect Id Unocal 55#5417, Manteca p <br /> 6747 Sierra Court, Suite J Sample Descnpt Water, MW-2 Received Feb 22, 1999.} <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Mar 5, 1999 <br /> Attention Deanna Harding Lab Number 902-2176 Reported Mar 10, 1999`' <br /> t J t <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> Ng/L N9/L <br /> Ethanol 500 N D <br /> t-Butanol 100 N D <br /> Methyl t-Butyl Ether (MTBE) 2 0 N D <br /> Di-isopropyl Ether (DIPS) 2 0 N D <br /> Ethyl t-Butyl Ether (ET8E) 2 0 N D <br /> t-Amyl Methyl Ether (TAME) 2 0 N D <br /> Surrogates Control Limit % % Recovery <br /> 50 150 100 <br /> Dlbromofluoromethane 50 150 90 <br /> 1,2-Dlchloroethane-d4 <br /> 0 <br /> Analytes reported as N D were not present above the slated limit of detection <br />®rQUOIA ANALYTICAL, #1271 <br /> ianne Fegley <br /> Project Manager <br /> 9022174 Gf-7 <3> <br />