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��® 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 /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(91 6)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792 0342 <br /> i 551 Industrial Road San Carlos CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> Blaine Tech Services Client Project Ib Chevron #9-9840, Stockton Sampled Jun 11, 1999 <br /> 1680 Rogers Avenue Sample Descript Water, MW-1 Received Jun 11, 1999 <br /> San Jose, CA 95112 Analysis Method EPA 8260 Analyzed Jun 24, 1999 <br /> Attention Christine Lillie Lab Number 906-1129 Reported Jun 28, 1999 <br /> QC Batch Number MS062399826OS2A <br /> Instrument IQ GG/MS-2 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> N9/L N9/L <br /> Ethanol 1250 N D <br /> t-Butanol 250 N D <br /> Methyl t-Butyl Ether (MTBE) 50 400 <br /> DI-Isopropyl Ether (DIPS) 50 N D <br /> Ethyl t-Butyl Ether (ETBE) 50 N D <br /> t-Amyl Methyl Ether (TAME) 50 21 <br /> Surrogates Control Limit % % Recovery <br /> Dibromofluoromethane 50 150 100 <br /> 1,2-Dichi oroethane-d4 50 150 96 <br /> s <br /> Analytes reported as N D were not present above the stated limit of detection Because matrix effects and/or other factors <br /> required additional sample dilution,detection limits for this sample have been raised <br /> SEQUOIA ANALYTICAL, #1271 <br /> 61 V-` <br /> elissa A Brewer <br /> Project Manager <br /> 9061129 BTS t2> <br />