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r Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (650) 364 9600 FAX(650) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510) 988 9673 <br /> VA& Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916) 92t 0100 <br /> MPDS Services Client Project ID Tosco#5886 2701 W March Lane Stockton Sampled Dec 1, 1997 <br /> 2401 Stanwell Dr Ste 300 Sample Descnpt Liquid, MW4D Received Dec 3, 1997 <br /> Concord CA 94520 Analysis Method EPA 8260 Analyzed Dec 9, 1997 <br /> Attention Jarrel Crider Lab Number 712-0166 Reported Dec 9, 1997 <br /> OXYGENATE COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> lig/L. N9/L <br /> Ethanol 500 N D <br /> t-Butanol 100 N D <br /> Methylt-Butyl t er 20 44 <br /> i-sopropy ter 2 0 <br /> Ethyl t-Butyl Ether (ETBE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limit % % Recovery <br /> 1 2-Dichforoethane-d4 76 114 100 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1210 <br /> 0gnature on File <br /> Alan B Kemp <br /> Project Manager <br /> 7120163 MPD a8> <br /> .�k <br />