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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 111W 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 /> Qett16r-Ryan- Dublin ' Client Project ID Tosco Unocal SS#6981 Stockton25-26, 1999,V <br /> 1 � ) o Sampled Jan t <br /> 6747 Sierra Court, Suite J Sample Descrlpt Water, MW-5 Received Jan 27, 1999 <br /> u Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Feb 3, 1999 <br /> `Attention Deanna Harding Lab Number 901-1964 Reported Feb 18, 1999 <br /> ,y n <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> lig/L 119/L <br /> Ethanol 500 N D <br /> t-Butanol 100 N D <br /> et yl t-Butyl Ether .. 2.0 42 <br /> r-sopropy ter 20 <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-Dichloroethane-d4 50 150 95 <br /> 0 <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> tEQUOIA ANALYTICAL,#1271 <br /> anne Fegley <br /> Project Manager <br /> 9011960 GET t7> <br />