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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(65o)364-9233 <br /> w404 N Wiget lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> iiW 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 /> Wcffic Environmental Group dlient Project ID "Chevro"n 9-9840, Stocki:on, CA Sampled Sep 24, 1998 <br /> 11315 Sunrise Gold Circle, Ste M Sample Descript Soil, MW-1 @ 30' Received Sep 28, 1998 <br /> Rancho Cordova, CA 95742 Analysis Method EPA 5030/8260 Extracted Oct 6, 1998} <br /> Attention Tim Anenson Lab Number S809342 -05 Analyzed Oct 8, 1998 <br /> Reported Oct 12, 1998' <br /> OXYGENATES by GUMS (EPA 8260) <br /> Analyte Reporting Limit Sample Results <br /> pg/kg Nglkg <br /> Ethanol 130,000 N D <br /> Tertiary butanol 25,000 N D <br /> Methyl tertiary butyl ether(MTBE) 500 N D <br /> Di-isopropyl ether(DIPE) 500 N D <br /> Ethyl tertiary butyl ether(ETBE) 500 N D <br /> Tertiary amyl methyl ether(TAME) 500 N D <br /> Surrogate Control Limits, % % Recovery <br /> 1,2-Dlchloroethane-d4 50-150 100 <br /> 0 <br /> Analytes reported as N D were not detected at or above the reporting limit Because matrix effects and/or other factors <br /> required additional sample dilution, reporting limits for this sample have been raised <br /> S QUOIA A ALYTICAL P#1271 <br /> rU v <br /> nda C Schneider <br /> roject Manager/Sacramento Laboratory <br /> S809342 PES <1> <br /> r� <br />