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Me 270 Perkins Ave. <br />li Sonoma, CA 95476 <br />Instrument ID: GCHP07 <br />SP -4 <br />Method: 8015Mod/8020 <br />Extracted: <br />Analyzed: <br />Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br />Sequoia <br />v 680 Chesapeake Drive <br />Redwood City, CA 9407>i <br />(415) 364-9600 <br />FAX (415) 364.9233 <br />mg/Kg <br />Analytical <br />404 N. Willer lane <br />819 Striker Avenue, Suite 8 <br />Walnut Creek, CA 94598 <br />Sacramento, CA 95834 <br />(510) 988-9600 <br />(916) 921-9600 <br />FAX (510) 988.9673 <br />FAX (916) 921 .0100 <br />Me 270 Perkins Ave. <br />li Sonoma, CA 95476 <br />Instrument ID: GCHP07 <br />SP -4 <br />Method: 8015Mod/8020 <br />Extracted: <br />Analyzed: <br />Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br />Analyte <br />Detection Limit <br />Sample Results <br />mg/Kg <br />mg/Kg <br />TPPH as Gas <br />1.0 <br />N.D. <br />Methyl t -Butyl Ether <br />.................... 0.0250.21 <br />.................... <br />Benzene <br />0.0050 <br />N.D. <br />Toluene <br />0.0050 <br />N.D. <br />Ethyl Benzene <br />0.0050 <br />N.D. <br />Xylenes (Total) <br />0.0050 <br />N.D. <br />Chromatogram Pattern: <br />Surrogates <br />Control Limits % <br />ib Recovery <br />TriFluorotoluene <br />70 <br />130 89 <br />Analytes reported as N.D. were not present above the stated limit of detection. <br />SEQUOIA ANALYTICAL - ELAP #1210 <br />ZAOV— <br />Mike Gregory <br />Project Manager <br />Page: 15 <br />