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Sequoia 68t)Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> ` 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)9Z1-0100 <br /> lijW Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707) 792-1865 FAX(707)792-0342 <br /> Cambria Client Prol ID Shell 420 W Kettleman Lane Sampled 10/29/98 _ <br /> 1144 65th St Suite C Sample Descript SB-F(3 0') Received 10/34/98 <br /> Oakland, CA 94608 Matrix SOLID Extracted 11/05/98 <br /> Analysis Method EPA 8260 Analyzed 11/07/98 <br /> Attention Aubrey Coal Lab Number 9811146-09 = Reported 11j1 7/98 <br /> OC Batch Number MS110498MTBEEXA <br /> Instrument ID H6 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/kg ug/kg <br /> Ethanol 25000 N D <br /> t-Butanol 5000 N D <br /> Methyl t-Butyl Ether (MTBE) 100 N D <br /> DI-Isopropyl Ether (DIPE) 100 N D <br /> Ethyl t-Butyl Ether (ETBE) 100 N D <br /> t-Amyl Methyl Ether (TAME) 100 N D <br /> Surrogates Control Limits % % Recovery <br /> 1,2-Dichloroethane-d4 70 121 97 <br /> Anaiytes reported as N D were not present above the stated limit of detection <br /> SEQU ALYTICAL - ELAP #1210 <br /> /"7 <br /> *Pegnner <br /> nager Page 19 <br />