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Sequoia 680 Chesapeake Drive 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 />a) <br />Analytical 819 Striker Avenue, Suite 8 Sacramento, CA 95834 (916) 921-9600 FAX (916) 921.0100 <br />qQF <br />Enviros <br />270 Perkins Ave. <br />Sonoma, CA 95476 <br />Sample Descript: SD -1 <br />Matrix: SOLID <br />Method: 8015Mod/8020 <br />Received: 1 <br />Extracted: 1 <br />Analyzed: 1 <br />Instrument ID: GCHP06 <br />Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br />Analyte <br />TPPH as Gas <br />Methyl t -Butyl Ether <br />Benzene <br />Toluene <br />Ethyl Benzene <br />Xylenes (Total) <br />Chromatogram Pattern: <br />Surrogates <br />Trifluorotoluene <br />Analytes reported as N.D. were not present above the stated limit of detection. <br />SEQUOIA ANALYTICAL - ELAP #1210 <br />Detection Limit <br />Sample Results <br />mg/Kg <br />mg/Kg <br />1.0 <br />N.D. <br />0.025 <br />N.D. <br />0.0050 <br />N.D. <br />0.0050 <br />N.D. <br />0.0050 <br />N.D. <br />0.0050 <br />N.D. <br />Control Limits % <br />% Recovery <br />70 130 <br />79 <br />Mike Gregory <br />Project Manager Page: 9 <br />