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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 404 N Wiget lane Walnut Creek CA 94598 (510) 988 9600 FAX (510) 988 9673 <br /> Analytical 819 Striker Avenue 5utte 8 Sacramento CA 95834 (916) 921 9600 FAX (9[6}921 0100 <br />' EA Engineering Science &Tech _ Client Pro ID Exxon 7-3942 8373942 1 7 Sampled 02/13/96 <br /> g g � / 30 Sa ped <br /> 3468 Mt Diablo Blvd Ste B100 Sample Descrlpt RW3 Received 02/14/95 <br />' Lafayette, CA 94549 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 02/16/96 <br /> Attention Tracy Faulkner Lab Number 9602A05-14 Reported 02123196 <br />' OC Batch Number GCO21696BTEX21A -- <br /> Instrument ID GCHP21 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br />' Analyte Detection Limit Sample Rasults <br /> ug/L ug/L <br /> TPPH as Gas 10000 59000 <br /> Methyl t-Butyl Ether 500 N D <br /> Benzene 100 4800 <br /> Toluene 100 5800 <br />' Ethyl Benzene 100 2100 <br /> Xylenes (Total) 100 8700 <br /> Chromatogram Pattern Gas <br />' Surrogates Control Limits % % Recovery <br /> Tnfluorotoluene 70 130 90 <br /> I <br /> I <br /> Analytes reported as N D were not present above the stated limit of detection <br />' SEQUOIA ANALYTICAL - ELAP #1210 <br /> I <br /> vin Follett <br /> olect Manager Page 14 <br />