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., <br /> '� Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-%00 FAX(650) 364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite B Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> qwr1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> lattler-Ryan - bublln Client Project 10 TOSCO 76#11193, Stockton Sampled Dec 10, 1998 <br /> 6747 Sierra Court, Suite J Sample Descript Sod, 2W Received Dec 10, 1998 <br /> Dublin, CA 94568 Analysis Method EPA 8260 Analyzed Dec 11, 1998 <br /> Attention Haig Kevork Lab Number 812-0916 Reported Dec 14, 1998 <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> rug/kg Ng/kg <br /> Ethanol 130,000 N D <br /> t-Butanol 25,000 N D <br /> Methyl t-Butyl Ether 500 64,000 <br /> Di-isopropyl ter 00 <br /> Ethyl t-Butyl Ether (ETBE) 500 N D <br /> t-Amyl Methyl Ether (TAME) 500 N D <br /> Surrogates Control Limit % % Recovery <br /> 1,2-Dichloroethane-d4 50 150 98 <br /> 0 <br /> Analytes reported as N D 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 /> 1� 'WVI.C� <br /> ianne Fegley <br /> Project Manager <br /> 8920993 GET a5> <br />