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Sequoia <br />Analytical <br />-i Enviros <br />::::'270 Perkins Ave. <br />ur <br />=! Sonoma, CA 95476 <br />Instrument ID: GCHP18 <br />680 Chesapeake Drive Redwood City, CA 9464WO (415) 364-9600 FAX (415) 364-9233 <br />404 N. Wiget Lane Walnut Creek, CA 94598 (510) 988-9600 FAX (510) 988-%73 <br />819 Striker Avenue, Suite 8 Sacramento, CA 95834 (916) 921-9600 FAX (916) 921-0100 <br />Sample Descript: SS4D <br />Matrix: SOLID <br />Analysis Method: 8015Mod/8020 <br />Lab Number: 9610570-16 <br />Received: 1 <br />Extracted: 1 <br />Analyzed: 1 <br />Analytes reported as N.D. were not present above the stated limit of detection. <br />SEQUOIA ANALYTICAL - ELAP #1210 <br />i <br />Mike Gregory <br />Project Manager <br />go <br />Page: 17 <br />Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br />Analyte <br />Detection Limit <br />Sample Results <br />mg/Kg <br />mg/Kg <br />TPPH as Gas <br />.................... 1.0 .................... <br />3.4 <br />Benzene <br />0.0050 <br />N.D. <br />Toluene <br />.................... 0.0050 .................... <br />0.0098 <br />Ethyl Benzene <br />.................... 0.0050 .................... <br />0.0088 <br />Xylenes (Total) <br />.................... 0.0050 .................... <br />0.078 <br />Chromatogram Pattern: <br />.................... .................... <br />C8 -C12 <br />Surrogates <br />Control Limits % <br />% Recovery <br />Trifluorotoluene <br />70 130 <br />82 <br />Analytes reported as N.D. were not present above the stated limit of detection. <br />SEQUOIA ANALYTICAL - ELAP #1210 <br />i <br />Mike Gregory <br />Project Manager <br />go <br />Page: 17 <br />