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.,/ <br /> � Sequoia 680 Chesapeake Drive RcdwoodCity,CA 94063 (650) 364.9600 FAX(650)364-9233 <br /> 404 N.Wiget lane Walnut Creek,CA 94598 (510) 988.9600 FAX(510)988-9673 <br /> �Illl� Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921.0100 <br /> Pacific Environmental Group Client Project ID: Unocal; Lathrop, CA Sampled: Nov la, 1997 <br /> 11315 Sunrise Gold Circle, Ste. M Sample Descript: Soil,T-2-S@13' Received: Nov 10, 1997, <br /> Rancho Cordova, CA 95742 Analysis Method: EPA 5030/8260 Extracted: Nov 19, 1900 <br /> Attention: Rusty Benkosky Lab Number: 711-0399 Analyzed: Nov 24, 1997`: <br /> Reported: Dec 3, 1997 <br /> OXYGENATES by GC/MS (EPA 8260) <br /> Analyte Reporting Limit Sample Results <br /> Ng/kg Ng/kg <br /> Tertiary butanol................................................................. 12,000 ..................................... N.D. <br /> Methyl tertiary butyl ether(MTBE).................................... 250 .............................I....... N.D. <br /> Di-isopropyl ether(DIPE).................................................. 250 ....................I................ N.D. <br /> Ethyl tertiary butyl ether(EfBE)....................................... 250 .............I....................... N.D. <br /> Tertiary amyl methyl ether(TAME)................................... 250 ..................................... N.D. <br /> Analytes reported as N.D.were not detected at or above the reporting limit. Because matrix effects and/or other factors <br /> required additional sample dilution,reporting limits for this sample have been raised. <br /> Ynda <br /> IA ANALYTICAL, P #1210 <br /> 7 <br /> . Schneider <br /> roject Manager/Sacramento Laboratory <br /> 7110397.PES <4, <br />