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404 N Wiget Lane <br /> Sequoia Walnut Creek.CA 94598 <br /> 4 (925)%8-9600 <br /> 45�1 <br /> IwoAnalytical FAX(925)988-9673 <br /> *ettler-Ryan - Dublin Client Project ID Tosco 88#6981, Stockton Sampled Jul 15, 1999 Y <br /> 6747 Sierra Court, Suite J Sample Descript Water, VW-4 Received Jul 16, 1999 <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Jul 29, 1999 <br /> Attention Deanna Harding Lab Number 907-1242 Reported Aug 4, 1999 <br /> t <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> lig/L Ng/L <br /> - utano . .. .. ..... . . . ....... .......... Soo 440 <br /> Methyl - u y ter . ... 10 . .... 19 <br /> ... .. . . ... .. ... <br /> Di-Isopropyl ter 10 <br /> Ethyl t-Butyl Ether (ETBE) 10 N D <br /> t-Amyl Methyl Ether (TAME) 10 N D <br /> Surrogates Control Limit% % Recovery <br /> Dibromofluoromethane 50 150 112 <br /> 1,2-Dichloroethane-d4 50 150 101 <br /> Analytes reported as N 0 were not present above the stated limit of detection Because matrix effects and/or other factors <br /> required additional sample dilution,detection limits for this sample have been raised <br /> SEQUOIA ANALYTICAL, #1271 <br /> • v�u <br /> tanne Fegley <br /> Project Manager <br /> 9071230 GET c 15> <br />