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oou Chesapeake Drive Redwood City CA 9uv63 (650) 364-9600 FAX(650)364�9Z33 <br /> v Sequoia 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)9Z1-9600 FAX(916)921-0100 <br /> � Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1$65 FAX(707)792 0342 <br /> CambriaClient Proi ID- Shell 420 W Kettleman Lane Sampled 10/29/98 <br /> 1144 65th St Suite C Sample Descript SB-C(7 5') Received 10/30/98 <br /> Oakland, CA 94608 Matrix SOLID Extracted 11/05/98 <br /> Analysis Method EPA 8260 Analyzed 11/06/98 <br /> Attention Aubrey Coal Lab Number 9811146-05 Reported 11 f 17f98 <br /> QC 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 /> D1-Isopropyl Ether (DIPE) 140 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-Dlchloroethane-d4 70 121 83 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ALYTICAL - ELAP #1210 <br /> Peggy er - 11 <br /> Project Manager Page <br />