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U��a 680 Chesapeake Dnve Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> Seq 404N Wjgct Lane Walnut Creek CA 94598 (510) 988 9600 FAX(5 10)988 9673 <br /> Analytical 819 Sinker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> EA Engineering Science&Tech Client Prol ID Exxon 7-3942, 51539 42 1300 Sampled 11/11/97 <br /> 3488 Mt Diablo Blvd Ste B100 Sample Descript UVB-MW1 Received 11/12/97 <br /> Lafayette, CA 94549 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 11/24/97 <br /> Attention Christa Marting. Lab Number 9711733-01 Reported 12102197 <br /> C Batch Number GC1 124976TEX21 A <br /> strument ID GCHP21 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br />`Analyte Detection Limit Sample Results <br /> ug/L ug/L <br />[TPPH as Gas 20000 91000 <br /> Methyl.t-Butyl Ether 1000 2200 <br /> Benzene 200 9400 <br /> Toluene 200 16000 <br /> Ethyl Benzene 200 2300 <br /> Xylenes {Total} 200 11000 <br /> Chromatogram Pattern Gas <br /> iSurrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 92 <br />�i <br /> f <br /> L <br /> Analytes reported as N D were not present above the stated Amit of detection <br /> 1EQUOIA ANALYTICAL - ELAP #1210 <br /> R d Herling <br /> or ct Manager Page t <br />