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Sequoia uOla I Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Ki) S <br /> 1 404 N Wlget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 8l9 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 /> GettlerrRyan/Geostrategles - " „ " - Client Proj ID „- "Unocal SS#0123 „ - --- - "---- --Sampled 09/28/98 <br /> 6747 Sierra Court Suite J Sample Descnpt U-1 Received 09/28/98 , <br /> - Dublin, CA 94568 Matrix LIQUID - <br /> Analysis Method EPA 8260 Analyzed 11/03/98 <br /> Attention Deanna Harding Lab Number 98091-150-02 _ „ Reported 1110J98 <br /> QC Batch Number M S 1 10298MTB E H6A <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 .. 26 <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-Dichloroethane-d4 76 114 96 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> AL <br /> Granicher <br /> rolect Manager nage 5 <br />