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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364 %00 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Gettler Ryan ( eostr -- -- s Client Prc� ID Unocal SS#5886`12 <br /> 6747 Sierra Court Suite J Sample Descript MW-7D Sampled 03/25/98 <br /> 7 Received 03/25/98 <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 04/01/98 <br /> �1"Attention Deanna Harding -Lab Number 9803GB4-11 " Reported 04/08/98 <br /> QC Batch Number MS6331981VITBEF3A <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 /> D14sopropyl Ether (DIPS) 2 0 N D <br /> Ethyl t-Butyl Ether (ETRE) 2 0 N D <br /> t-Amyl Methyl Ether (`FAME) 20 N D <br /> Surrogates Control Limits % °,� Recovery <br /> 1,2-Dichloroethane-d4 76 114 102 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> gory <br /> r Manager Page t <br />