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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 (915)988-9600 FAX(915)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)911-9600 FAX(916)911-0100 <br /> IQF1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)791-0342 <br /> *ettler-Ryan -Dublin Client PJect 10 � Tosco SS#6981, Stockton Sampled Jul 21, 1998 <br /> 74-7 Sierra Court, Suite J Sample Descrlpt Water, MW-6 Received Jul 22, 1998 <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Jul 28, 1998' <br /> s Attention Deanna Harding Lab Number 807-1525 Reported Aug 11, 1998 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> lig/L. lug/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(ETRE) 20 N D <br /> t-Amyl Methyl Ether(TAME) 20 N D <br /> Surrogates Control Limit % % Recovery <br /> 1,2-Dichloroethane-d4 50 150 98 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> ulianne Fegiey <br /> Project Manager <br /> 8071520 GET <8> <br /> t <br />