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� Sequoia 680 Chesapeake Dnve Redwood Cty Ca 94063 (650) 364 9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Wainut Creek,C4 94598 (510) 988 9600 FAX(510) 988-9673 <br /> �rI117 Analytical a19 Striker Avenue Swte 8 Sacramento CA 95834 (916) 921-9600 FAX(915) 921 0100 <br /> Gettler Ryan/Geostrategies Client Prol ID Former Unocal 2859,280054 85 Sampled 03/06/98 <br /> ' 6747 Sierra Court Suite J Sample Descrlpt MW-4 Received 03/06/98 <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 03/10/98 <br /> Attention Deanna Harding Lab Number 9803390-05 _ _ Reported 03118/98 <br /> oC Batch Number MS031098MT603A <br /> Instrument ID F3 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/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 (ETBE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limits % % Recovery <br /> 1,2-Dichloroethane-d4 76 114 102 <br /> • <br /> Anaiytes reported as N 1) were not present above the stated limit of detection <br /> SEQUOIA ANA IC - ELAP #1210 <br /> r lect Manager Page t <br />