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D Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 96W FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510)988 9673 <br /> �I,l� Analytical 819 Stnker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916) 921 0100 <br /> EA Engineering Science &Tech- " µµ Client Prol ID Exxon 7-3942, 51539 42 1300 Sampled 08/26/97 <br /> 3468 Mt Diablo Blvd Ste 8100 Sample Descript V3 Received 08/27/97 <br /> Lafayette, CA 94549 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/30/97 <br /> Attention Chrlsta Martmg _ Lab Number 9708E45-01 Reported 09f04/97 <br />�OC BatchNumber GC083097BTEX06A <br /> nstrument ID GCHP06 <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 5000 36000 <br /> Methyl t-Butyl Ether 250 260 <br /> Benzene 50 53 <br /> Toluene 50 7200 <br />' Ethyl Benzene 5o 2100 <br /> Xylenes (Total) 50 9000 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 101 <br /> 0 <br /> RFr' P: [1IE <br /> Analytes reported as N D were not present above the stated limit of detection <br />�EQUDIA ANALYTICAL - ELAP 41210 SEP 1 5 1997EA ENGINEEK,,,,u SCIENCE <br /> AND TECHNOLOGY <br /> LAFAYETTE, CA <br /> Rt� Herltng <br />�r t Manager <br /> Page 1 <br />