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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N W.Set Lane Walnut Creek.CA 94598 (925)988-9600 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 /> 0ttler-Ryan - Dublin Client Project ID Unocal SS#5417, Manteca Sampled - Feb 22, 1999 <br /> ,47 Sierra Court, Suite J Sample Descript Water, MW-1 Received Feb 22, 1999 <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Mar 5, 1999 <br /> Attention Deanna Harding Lab Number 902-2175 Reported Mar 10, 1999 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> Ng/L erg/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 (ETBE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limit % % Recovery <br /> Dlbromofluoromethane 50 150 100 <br /> 1 2-Dichloroethane-d4 50 150 91 <br /> 0 <br /> Analytes reported as N D were not present above the stated kmit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> LVt_ <br /> Ilanne Fegley <br /> Project Manager <br /> 9022174 GET <2> <br />