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Sequoia 680 Chesapeake Drrve Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wlget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Susie 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 /> Gettler Ryan/Geosirategies --- Gent Prol ID UNOCAL 2859, Stockton _-�- ---� Sampled-06/18/98 <br /> 6747 Sierra Court Suite J Sample Descnpt MW-3 Received 06/18/98 = <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 06/28/98 <br />== Attention Deanna Harding _ Lab Number 9806089-04 ^ —_ - _ - - Reported 07110198_ -- <br /> QC Batch Number MS062898803052A <br /> Instrument ID MS-2 <br /> Fuel Oxygenates by 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 /> t,2-Dichloroethane-d4 76 114 88 <br /> 0 <br /> Anatytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41271 <br /> ranicher <br /> Protect Manager Page s <br />