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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N.Witlet Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)966-9673 <br /> 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 10, 1997 <br /> 11315 Sunrise Gold Circle, Ste. M Sample Descript: Soil,T-3-W@73' Received: Nov 10, 1997 <br /> Rancho Cordova, CA 95742 Analysis Method: EPA 5030/8260 Extracted: Nov 19, 1997' <br /> Attention: Rusty Benkosky Lab Number: 711-0401 Analyzed: Nov 23, 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 /> Tertiarybutano(................................................................. 10,000 ..................................... N.D. <br /> Methyl tertiary butyl ether(MTBE).................................... 200 ..................................... N.D. <br /> Di-isopropyl ether (DIPE).................................................. 200 ..................................... N.D. <br /> Ethyl tertiary butyl ether(ETBE)....................................... 200 ..................................... N.D. <br /> Tertiary amyl methyl ether(TAME)................................... 200 ..................................... 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 /> SEQUOIA ANALYTIC L, ELAP #1210 <br /> nda C. Schneider <br /> roject Manager/Sacramento Laboratory <br /> 71t0397.PES <6 <br /> �L <br />