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Ci) Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lame Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> C,II,i) 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 /> 1 Gettler Ryan[Geostrategies - µ _ Client Prol~ID -- -Tosco SS#6981, 180138 85 µSampled 05/27/98 µ <br /> 16747 Sierra Court Suite J Sample Descript VW-1 Received 05/28/98 <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 06/03/98 _ <br /> - Attention Deanna Harding Lab Number 9805H47-11 _ __Reported 07124198 <br /> __= - = <br /> QC Batch Number MS060298MTBEF2A - <br /> Instrument ID F2 <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 /> Methy!t-Butyl Ether (MTBE) 20 N D <br /> Dl-Isopropyl Ether (DIPS) 20 N D <br /> Ethyl t-Butyl Ether (ETBE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dichloroethane-d4 76 114 92 <br /> • <br /> i <br /> Analytes reported as N D were not present above the stated lima of detection <br /> I <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> I <br /> To anicher <br /> Pr4V Manager Page 2D <br />