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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Geek CA 94598 (925)988-9600 FAX(925)988-%73 <br /> 619 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North,Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Lnwnw—rs____ _ — _— — - s"s s—s ....�_ : ::::—nr•: ••.^.�wss-ss�sw —_ .......,..erg_.....—.�...s <br /> Gettler RyanZGeostrategies Client Proj WID 180138 85/6981, 4707 Paciflc� Sampled 10/14/98 <br /> 6747 Sierra CCourt=Suite J - - Sample Descript MW-2--` - --- Received -10/14/98 <br /> Dublin, CA 94568 Matrix LIQUID _ <br /> Analysis Method-EPA 8260 �- —� Analyzed 10/23/98- <br /> Attention Deanna Harding _ _ - Lab Number 9810887-03Reported_11J02/98 w <br /> CC Batch Number MS102298MTBEH-6B <br /> Instrument ID H6 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> Ethanol 2500 N D <br /> t-Butanol 500 N D <br /> Methyl t-Butyl Ether (MTBE) 10 -. 190 <br /> D1-Isopropyl Ether(RIPE) 10 N D <br /> Ethyl t-Butyl Ether(ETRE) 10 N D <br /> t-Amyl Methyl Ether(TAME) 10 N D <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dichloroethane-d4 76 114 98 <br /> r <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> Tod Granicher <br /> Project Manager Page <br />