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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wigec Lane Walnut Geek CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> X117 Analytical 819 striker Avenue.Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)92t 0100 <br /> -Gettler Ryan/Geostrategies _ Y Client-Prof ID Former-Unocal 2859, 280054 85 -� --Re eiivled 03/06%98 <br /> 6747 Sierra Court Suite J Sample Descript MW-5 - <br /> Dublin, CA 94568 Matrix LIQUID 98 03 10 zed <br /> Analysis Method EPA 8260 Analyzed / / <br /> Attention Deanna Harding _ Lab Number 9803390-06 _-N « _ ry - »_ _Reported 03j18196 <br /> QC Batch Number MS031098MTSEF3A <br /> Instrument ID F3 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/L. ug/L <br /> Ethanol 500 N D <br /> 100 N D <br /> t-Butanol <br /> Methyi t-Butyl Ether (MTBE) 20 <br /> N D <br /> Di-Isopropyl Ether (DIPE) 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-Dichioroethane-d4 76 114 103 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA AN YTICAL - ELAP #1210 <br /> e ry <br /> Project Manager Page 13 <br />