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Sequoia 404 N .CA Lane <br /> Walnut Creek,CA 94598 <br /> 4 (925)988-9600 <br /> Analytical FAX(M)988-9673 <br /> 40ettler-Ryan -Dublin Client Project ID Tosco SS#6981, Stockton Sampled Jul 15, 1999 <br /> 6747 Sierra Court, Suite J Sample Descript Water, MW-5 Received Jul 16, 1999 <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Jul 29, 1999 <br /> Attention Deanna Harding Lab Number 907-1234 Reported Aug 4, 1999 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> }rg/L erg/L <br /> t-Butanol 100 N D <br /> Methyl t-Butyl ter . . . .. . . .... ... 20 .. . . 36 <br /> I-sopropy ter 20 <br /> Ethyl t-Butyl Ether (ETRE) 20 N D <br /> t-Amyl Methyl Ether(TAME) 20 N D <br /> Surrogates Control Limit % % Recovery <br /> Dib romo#luoromethane 50 150 110 <br /> 1,2-Dichloroethane-d4 50 150 104 <br /> • <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> k'IiL lvt.JU6 <br /> ianne Fegley <br /> Project Manager <br /> 9071230 GET <7> <br />