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Sequoia 404 Wiget Lane <br /> Walnut Geek, CA 94598 <br /> iwAnalytical FAX(925)988-96073 <br /> Gettler-Ryan -Dublin Client Project lD Tosco SS#6981, Stockton Sampled Jul 15, 1999 • <br /> 6747 Sierra Court, Suite J Sample Descript Water, MW-6 Received Jul 16, 1999 <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Jul 29, 1999 <br /> Attention Deanna Harding Lab Number 907-1235 Reported_ Aug 4, 1999 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> erg/L Erg/L <br /> t-Butanol 100 N D <br /> ._ Methyl t-Butyl Ether(MTBE) 20 N D <br /> DI-Isopropyl Ether(DIPE) 20 N D <br /> Ethyl t-Butyl Ether(ETRE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limit% % Recovery <br /> Dibromofluoromethane 50 150 108 <br /> 1,2-Dlchloroethane-d4 50 150 105 <br /> • <br /> Anaiytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> li nne Fegley <br /> r� <br /> lect Manager <br /> 9071230 GET <8> <br />