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ISequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX (650)364 9233 <br /> r'tir� 1 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510)988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916) 921 0100 <br /> Pacific Environmental Group Client Prol ID 311-174 1A/5447,Stockton Sampled 02/04/98 <br /> 2025 Gateway Place, Suite 440 Sample Descript SE-20 Received 02/05/98 <br /> San Jose, CA 95110 Matrix SOLID Extracted 02/18/98 <br /> Analysis Method EPA 8260 Analyzed 02/18/98 <br /> Attention J Nelligan Lab Number 9802975-03 Reported 02J20J98 <br /> QC Batch Number MS021798MTSEEXA <br /> Instrument ID F3 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/kg ug/k5 <br />' Ethanol 25000 N D <br /> t-Butanol 5000 N D <br /> Methyl f-Butyl Ether (MTBE) 400 - 1800 <br /> IDi-Isopropyl Ether (DIPE) 100 N D <br /> Ethyl t-Butyl Ether (ETBE) 100 N D <br /> t-Amyl Methyl Ether(TAME) 100 N D <br /> ISurrogates Control Limits% % Recovery <br /> 1,2-Dichloroethane-d4 70 121 103 <br /> f� <br /> I <br /> I <br /> I <br /> I ' <br /> I <br /> IAnalytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> I <br /> Granicher <br /> I Project Manager ?age 5 <br />