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.� <br /> Sequoia 680 Chesapeake Drive Redwood City,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 /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> Pacific Environmental Group Client Project ID Unocal, Laffirip;CA' Sampled. Nov i'0, t997'r <br /> 11315 Sunrise Gold Circle, Ste. M Sample Descript: Soil, T-1-N@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: 711-0398 Analyzed: Nov 21, 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 /> Tertiarybutanol................................................................. 50,000 ..................................... N.D. <br /> Methyl tertiary butyl ether(MTBE).................................... 1,000 ..................................... N.D. <br /> Di-isopropyl ether(DIPE).................................................. 1,000 ..................................... N.D. <br /> Ethyl tertiary butyl ether(ETBE)....................................... 1,000 ..................................... N.D. <br /> Tertiary amyl methyl ether (TAME)................................... 1,000 ..................................... 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 /> 7' da'C <br /> ANALYTICAL, P #121100 <br /> cl <br /> chneider <br /> nager.,Sacramento Laboratory <br /> 7110397.PES <3> <br />