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Sequoia 680 Chesapeake Drive Rcdwood 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, Lathrop,CA Sampled: 666 1*01 199'l- <br /> 11315 Sunrise Gold Circle, Ste. M Sample Descript Soil,T-1-S@14' Received: Nov 10, 1997 <br /> s Rancho Cordova, CA 95742 Analysis Method: EPA 5030/8260 Extracted: Nov 19, 1997 <br /> Attention: Rusty Benkosky Lab Number: 711-0397 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 /> SEQU IA ANALYTICA , ELAP #1210 <br /> Li da C. Schneider <br /> roiect Manager'Sacramento Laboratory <br /> 7110397 PES 2 - <br /> :�i <br />