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Sequoia 6SO Ch,--p-.k-DIlve Redwood CRY.CA 94063 (650) 364-9600 FAX(650) 364-9233 <br /> 404 N.Wget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> ID 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)92I-0100 <br /> 14W Anal3lical 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ec mol <br /> Wdradle'ht Environmental - Client Project lb: RWI[k66 566ds S.... . a"' Aug 25, 1998 <br /> 336 Augusta Court Sample Descript: Method Blank Receivec: Aug 25, 1998�" <br /> ,.,Valley Spring, CA 95252 Analysis Method: EPA 5030/8260 Analyzec: Sep 8, 1998 <br /> Attention: Vic Cherven Lab Number: BLK090898 Reportec: Sep 25, 1998J�l <br /> OXYGENATES by GC/MS (EPA 8260) <br /> Analyte Reporting Urnit Saff iple Results <br /> pg/L pg/L <br /> Ethanol.............................................................................. 500 .................................... N.D. <br /> Tertiarybutanol................................................................. 100 ..................................... N.D. <br /> Methyl tertiary butyl ether(MTBE).................................... 2.0 ..................................... N.D. <br /> Di-isopropyl ether (DIPS).................................................. 2.0 ..................................... N.D. <br /> Ethyl tertiary butyl ether (ETRE <br /> )....................................... 2.0 ..................................... N.D. <br /> Tertiary amyl methyl ether (TAME)................................... 2.0 ..................................... N.D. <br /> Surrogate Control Limits,% Recovery,% <br /> 1,2-Dichloroethane-d4 50-150 92 <br /> Anatyles reported as N.D.were not detected at or above the reporting limit, <br /> SEQUOIA ANALYJICAL, FLAP #1271 <br /> e <br /> P� <br /> d6 . Sc neider <br /> Project <br /> Manager/Sacramento Laboratory <br /> 1;808255,UES <3> <br />