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' Sequoia 680 Chesapeake Drive Redwood Clt. CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> Sequoia <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510)988 9673 j <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (9161 921 9600 FAX (916) 92l 0[00 <br /> EA Engineering Science &Tech Client Proj ID Exxon 7-3942, 5153942 1300 Sampled 08/08/96 <br />' 3468 Mt Diablo Blvd Ste 8100 Sample Descript V3 Received 08/09/96 <br /> Lafayette, CA 94549 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/19/96 <br /> Attention Tracy Faulkner Lab Number 96085111-13 Reported 08122196 <br /> CSC Batch Number GC081996BTEX02A <br /> Instrument ID GCHP02 <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 12500 53000 <br /> Methyl t-Butyl Ether 625 N D <br /> Benzene 125 N D <br /> Toluene 125 3800 <br /> Ethyl Benzene 125 3800 <br /> Xylenes (Total) 125 18000 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 84 <br /> I <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL ELAP 01210 <br /> Kevin Follett <br /> Project Manager Page 13 <br />