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1� <br /> Sequoia 680 Chesapeake Dnvc Redwood City CA 94063 (650) 364 9600 FAX (650)364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510)988 9673 <br /> fall' Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br />' Pacific Environmental Group Client Proj ID 311-174 1A/BP #5447,Stockton Sampled 02/13/98 <br /> 2025 Gateway Place, Suite 440 Sample Descript PP-2 Received 02/17/98 <br /> San Jose, CA 95110 Matrix SOLID Extracted 02/20/98 <br />' Analysis Method EPA 8260 Analyzed 02/23/98, Attention Joe MuzzioQC Batch Number MS021998MTBEEXB Lab Number 9802886-08 Reported 03f30f98 <br /> Instrument ID H6 <br />' Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/k9 ug/kg <br />' Ethanol 25000 N D <br /> t-Butanol 5000 N D <br /> Methyl t-Butyl Ether (MTBE) 100 270 <br />' Di-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 />' Surrogates Control Limits % % Recovery <br /> 1,2-Dlchloroethane-d4 70 121 113 <br /> I <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 01210 <br /> wd Granicher <br /> Project Manager Page 13 <br />