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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 9 404 N Wiget Lane Walnut Creek CA 94598 (925)988-%00 FAX(925)988-%73 <br /> Analytical 819S'Viker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)9I1-0100 <br /> 1455 McDowell Blvd North,Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Gettler RyanGeostrategies-- ---C lleni ProlµlD Former (Jrzocal l"acdlty #5098 - Sampled 09/15/98~ € <br /> 6747 Sierra Court Suite J Sample Descrlpt MW-13 Received 09/15/98 <br /> = Dublin, CA 94568 Matrix LIQUID _ <br /> Analysis Method EPA 8260 Analyzed 09/24/98 <br /> -:.Attention Deanna Harding Lab Number 9809909-05 _ _ Reported 09130198 <br /> QC Batch Number MS092398MTBEH6A ---- <br /> Instrument ID H6 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> Ethanol 500 N D <br /> t-Butanol 100 N D <br /> Methyl t-Butyl Ether(MTBE) 20 N D <br /> Di-Isopropyl Ether (DIPE) 20 N D <br /> Ethyl t-Butyl Ether(ETRE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limits % % Recovery <br /> 1 2-Dichloroethane-d4 76 114 93 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Granlcher <br /> ect Manager Page 8 <br />