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■ <br /> Sequoia <br /> y O � 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650)364 9333 <br /> rY1 J q4a 404 N Wiget Lane Walnut Creek CA 94598 (50 988 9600 FAX (510) 988 9673 <br /> Analytical 8F9 Striker Avenue Suite 8 Sacramento CA 95834 (9t6) 921 9600 FAX (916) 921 0100 <br /> EA Engineering Science &Tech Client Prol ID Exxon 7-3942, 51539 42 1 300 Sampled 11/11/97 <br /> 3468 Mt Diablo Blvd Ste B100 Sample Descript UVB-MW1 Received 11/12/97 <br /> Lafayette, CA 94549 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 11/21/97 <br /> Attention Christa Marting Lab Number 9711733-01 Reported -12JO2197 <br /> w <br /> C Batch Number M51 1 1897MTBEF3A <br /> tstr-ument-ID F3 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Lima Sample Results <br /> ug/L ug/L <br />�Ethanol 50000 N D <br /> }t-Butanol 10000 N D <br /> Methyl t-Butyl Ether(MTBE) 200 N D <br /> DI-Isopropyl Ether (DIPE) 200 N D <br />'Ethyl t-Butyl Ether (ETBE) 200 N D <br /> t-Amyl Methyl Ether(TAME) 200 N D <br /> Surrogates Control Limits % % Recovery <br /> 1,2-Dichloroethane-d4 76 114 81 <br />`i <br /> 1 <br /> 1 <br /> S <br /> Analytes reported as N D were not present above the stated limit of detection <br /> tEGUOIA ANALYTICAL - ELAP #1210 <br /> d Nerling 2 <br />�r ct Manager Page <br />