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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N WlSet lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> fr�ll>� <br /> 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 /> cifc Environmental Group~ Client Project 1D Chevron+9-9840, Stockton, CA v Sampled NIA " <br /> 1315 Sunrise Gold Circle, Ste M Sample Descript Method Blank Received NIA <br /> Rancho Cordova, CA 95742 Analysis Method EPA 5030/8260 Extracted Oct 9, 1998 <br /> Attention Tim Anenson Lab Number BLK101298 Analyzed Oct 12, 1998 <br /> u. Reported Oct 13, 1998 <br /> OXYGENATES by GC/MS (EPA 8260) <br /> Analyte Reporting Limit Sample Results <br /> pg/kg N9lkg <br /> Ethanol 25,000 N D <br /> Tertiary butanol 5,000 N D <br /> Methyl tertiary butyl ether (MTBE) 100 N D <br /> Dl-isopropyl ether(DIPE) 100 N D <br /> Ethyl tertiary butyl ether(ETBE) 100 N D <br /> Tertiary amyl methyl ether(TAME) 100 N D <br /> Surrogate Control Limits, % % Recovery <br /> 1,2-Dichloroethane-d4 50-150 95 <br /> Analytes reported as N D were not detected at or above the reporting hmlt <br /> SEQ OIA ANALYTICAL, FLAP#1271 <br /> inda C Schneider <br /> roject Manager/Sacramento Laboratory <br /> S809376 PES <4n <br />