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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FkX(650) 364-9233 <br /> 404 N Wlget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988 9673 <br /> Analytical III Idler Avenue Suite 8 Sacramento CA 95834 (916)9z1-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> •upgradient rznvironmental Client Project iia Conrad Pro k, ml led �e 24 1008 <br /> Y pertY a p P <br /> h P 0 Box 8002 Sample Descnpt Water, MW-3 Received Sep 24, 1998 <br /> Stockton, CA 95208 Analysis Method EPA 503018260 Analyzed Oct 7, 1998 <br /> 'Attention Vic Cherven Lab !Number 5809299 -03 Reported Oct 8, 1998,` <br /> OXYGENATES by GC/MS (EPA 8260) <br /> Analyte Reporting Limit Sample Results <br /> Ng/L pg/L <br /> Tertiary butanol 100 N D <br /> Methyl tertiary butyl ether(MTBE) 20 N D <br /> Di-isopropyl ether(DIPS) 20 N D <br /> Ethyl tertiary butyl ether(ETRE) 20 N D <br /> Tertiary amyl methyl ether(TAME) 20 N D <br /> Surrogate Control Limits,% % Recovery <br /> 1,2-Dichloroethane-d4 50-150 93 <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> SEQU lA ANALYTICA , ELAP#1271 <br /> ion a C Schnei er <br /> rolect Manager/Sacramento Laboratory <br /> S 309299 UES <3a <br />