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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wlget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <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)791-0342 <br /> t <br /> er-pyan - DubilnClient project 10 Tosco (Unocal) 88#6981, Stockton Sampled Jan 25-26,'1999 <br /> <6747 Sierra Court, Suite J Sample Descript Water, MW-9 Received Jan 27, 1999 <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Feb 3, 1999 <br /> Attention Deanna Harding Lab Number 901-1968 Reported Feb 18, 1999 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> pg/L. pg/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 /> 1,2-Dlchloroethane-d4 50 150 104 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> UOIAANALYTICAL, #1271 <br /> 4 <br /> 1 '_V <br /> anne Fegley <br /> Project Manager <br /> 9011960GEr <11> <br />