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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-%00 FAX(650)364-9233 <br /> G) 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)792-034Z <br /> Afttlei-Ayah-`Dublin ` Client Rirojed I0 Tosco SS#6981, Stockton 'Sampled Jut 21, '1998 <br /> !W7 Slerra Court, Suite J Sample Descnpt Water, MWA 1 Received Jul 22, 1998 <br /> Dublin, CA 94588 Analysis Method EPA 8260 Analyzed Jul 28, 1998 <br /> Attention Deanna Harding Lab Number 807-1529 Reported Aug 11, 1998 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> Ng/L lig/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(DIPS) 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-Dlchlorcethane-d4 50 150 105 <br /> I <br /> I <br /> Analytes reported as N D were not present above the stated Ilmit of detection <br /> i <br /> SEQUOIA ANALYTICAL., #1271 <br /> lianne Fe le <br /> Project Manager j <br /> 8071520 GET <12s <br />