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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX (650)364 9233 <br /> Sequoia <br /> 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 Proj ID 311-1741A/BP 5447, Stockton Sampled 02/04/98 <br /> 2025 Gateway Place, Suite 440 Sample Descript GT3-A Received 02/05/98 <br /> San Jose, CA 95110 Matrix SOLID Extracted 02/06/98 <br /> Analysis Method EPA 8260 Analyzed 02/09/98 <br /> Attention Jessica Nelligan Lab Number 9802212-05 Reported 02f10J98 <br /> OC Batch Number MS020698MTBEEXA <br /> Instrument ID H6 <br />' Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/kg ug/kg <br />' Ethanol 83000 N D <br /> t-Butanol 17000 i 20000 <br /> Methyl t-Butyl Ether (MTBE) 330 28000 <br />' Di Isopropyl Ether (DIPE) 330 N D <br /> Ethyl t-Butyl Ether(ETBE) 330 N D <br /> t-Amyl Methyl Ether (TAME) 330 N D <br />' Surrogates Control Limits% % Recovery <br /> 1,2-Dichloroethane-d4 70 121 gg <br /> lie <br /> I <br /> IAnalytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> A11M .2 LAI <br /> Granicher <br /> Project Manager Page 5 <br />