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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> q 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 (9t6) 921 9600 FAX (916)921 0100 <br /> Pacific Environmental Group Client Prol ID 311-174 1A/BP 5447, Stockton Sampled 02/04/98 <br />' 2025 Gateway Place, Suite 440 Sample Descript GT3-B Received 02/05/98 <br /> San Jose, CA 95110 Matrix SOLID Extracted 02/06/98 <br /> Analysis Method EPA 8260 Analyzed 02/06/98 <br /> Attention Jessica Nelligan Lab Number 9802212-06 Reported 02J10/98 <br />' OC Batch Number MS020698MTBEEXA <br /> Instrument ID H6 <br /> Oxygenate Compounds (EPA 8260) <br />' Analyte Detection Limit Sample Results <br /> ug/k9 ug/kg <br />' Ethanol 250000 <br /> ND <br /> t-Butanol 50000 N D <br /> Methyl t-Butyl Ether(MTBE) 1000 18000 <br />' Di-Isopropyl Ether (DIPS) 1000 N D <br /> Ethyl t-Butyl Ether (ETBE) 1000 N D <br /> t-Amyl Methyl Ether (TAME) 1000 N D <br />' Surrogates Control Limits % % Recovery <br /> 1 2-Dichloroethane-d4 70 121 75 <br /> 1� <br /> 1 <br /> 1 <br /> I <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL ELAP #1210 <br /> qW Granicher <br /> Project Manager Page g <br />