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�{ • 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(92S)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0 100 <br /> �� ���� 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> � <br /> Blalne Tech Services Client Project ID Chevron #9-9840, Stockton Sampled Jun 11 1999 <br /> 1680 Rogers Avenue Sample Descript Water, MW-3 Received Jun 11, 1999 <br /> San Jose, CA 95112 Analysis Method EPA 8260 Analyzed Jun 24, 1999 <br /> Attention Christine Lillie Lab Number 906-1131 Reported Jun 28, 1999 <br /> QC Batch Number MS062399826052A <br /> Instrument ID GC/MS-2 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> F►9/L N9/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 /> Dlbromofluoromethane 50 150 107 <br /> 1,2-Dichloroethane-d4 50 150 104 <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> WA,-�44-Z.- 0 <br /> elissa A Brewer <br /> Project Manager <br /> 9061129 BTS <4> <br />