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' Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> rV� 404 N Wiget Cane Walnut Creek CA 94598 (510) 988 9600 FAX (5tO)988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Pacific Environmental Group Client Prot ID 311-174 1 A/5447,Stockton Sampled 02/04/98 <br />' 2025 Gateway Place, Suite 440 Sample Descnpt NW-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 9802975-02 Reported 02120198 <br />' QC Batch Number MS021798MTBEEXA ~ <br /> Instrument lD F3 <br /> Oxygenate Compounds (EPA 8260) <br />' Analyte Detection Limit Sample Results <br /> ug/kg ug/kg <br />' Ethanol 25000 N D <br /> t-Butanol 5000 N D <br /> Methyl t-Butyl Ether(MTBE) 100 2000 <br />' Didsopropyl Ether (DIPE) 100 N D <br /> Ethyl t-Butyl Ether (ETBE) 100 N D <br /> t-Amyl Methyl Ether (TAME) 100 N D <br />' Surrogates Control Limits% % Recovery <br /> 1,2-Dichloroethane-d4 70 121 92 <br /> lir <br /> I <br /> I <br /> Analytes reported as N D were not present above the stated I1mit 01 detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Granicher <br /> IProtect Manager Page 3 <br />