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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9Z31 <br /> • 404 N WSet Lane Walnut Creek CA 94598 (925)968-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> E455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792 1865 FAX(707)792 0342 <br /> - Gettler Ryan�Geostrategies --"" Client Prol ID--Unocal 5886, 180137 85 -" - �Sampfed~ 06%t 7%98 <br /> 6747 Sierra ourt Suite J Sample Descrlpt MW-50 Received 06/17/98 <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 06/27/98 <br /> Attention Deanna Harding Lab Number 9806C26-07 _ _ Reported 07JO9198 <br /> InC Batch Number MS062798826052A - "- " - -- -µ- """ ` - - " - - -=— --- " _-- <br /> strument 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 /> D1-Isopropyl Ether (DIPS) 20 N D <br /> Ethyl t-Butyl Ether (ETBE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Psurrogates Control Limits % % Recovery <br /> 1 2-Dlchloroethane-d4 76 114 91 <br /> • <br /> • <br /> •na(ytes reported as N D were not present above the stated lima of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> � <br /> ranicher <br /> t Manager Page 17 <br /> • <br />