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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N.Wlget Lane Walnut Creek,to 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento.CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ..-.>.-i2>i':;:er :;2t:Xii`:$i .................::;>: ..:-,:. ;k;i.:.';:i:i ....... <br /> I nfeldClient project lei: 40-3202-01Sampled: <br /> iN/A <br /> 780 Chadbourne Rd., Ste. D Sample Descript: Method Blank Received. N/A:` <br /> Fairfield, CA 94585 Analysis Method: EPA 5030/8260 Analyzed: Oct 6, 1998"-`:: <br /> :Attention: Randy Wheeler Lab Number: BLK100698 Reported. Oct 7, 1998::' <br /> OXYGENATES by GC1MS (EPA 8260) <br /> Analyte Reporting Limit Sample Results <br /> pg/L pg/L <br /> Ethanol........................................................................... 500 ............................... N.D. <br />' Tertiary butanol................................................................. 100 ..................................... N.D. <br /> Methyl tertiary butyl ether(MTBE).................................... 2.0 ..........I.......................... N.D. <br /> Di-isopropyl ether(DIPS)................................................. 2.0 ..................................... N.D. <br /> Ethyl tertiary butyl ether(ETBE)....................................... 2.0 ..............I...................... N.D. <br /> Tertiary amyl methyl ether(TAME).................................. 2.0 ..................................... N.D. <br /> Surrogate Control Limits, % % Recovery <br /> 1,2-Dichloroethane-d4...................................................... 50-150 ..................................... 94 <br /> • <br /> i <br /> Analytes reported as N.D.were not detected at or above the reporting limit. <br /> SEQUOIA ANALYTICAL, ELAP#1271 <br /> da C. Sch eider <br /> oject Manager/Sacramento Laboratory <br /> S809340.KtA <4> <br />