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Sequoia <br />`/ 680 Chesapeake Drive Redwood City, CA 940'W <br />(415) 364-9600 <br />FAX (415) 364-9233 <br />Analytical <br />404 N. Wiget lane Walnut Creek, CA 94598 <br />819 Striker Avenue, Suite 8 Sacramento, CA 95834 <br />(510) 988-9600 <br />(916) 921-9600 <br />FAX (510) 988.9673 <br />FAX (916) 921 .0100 <br />.............._........_ _:....._........:..._ <br />Enviros <br />270 Perkins Ave. <br />Sonoma, CA 95476 <br />Attantinn• .Ina NPPIV <br />__ -'__` h... = B n` min Holt Dr.Il <br />Client Proj. ID: S e 130 a ja <br />Sample Descript: SD -3 <br />Matrix: SOLID <br />Analysis Method: 8015Mod/8020 <br />Lab Number: 9610568-09 <br />Sampled: <br />p <br />Received: <br />Extracted: <br />Analyzed: <br />Reported: <br />10/09/96 <br />10/09/96 <br />10/09/96 <br />10/10/96 <br />10/10/96 <br />Instrument ID: GCHP18 <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 />.................... 1.3 <br />Methyl t -Butyl Ether <br />0.025 <br />N.D. <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 />.................... 0.0067 <br />Chromatogram Pattern: <br />.................... <br />.................... C9 -C12 <br />Surrogates <br />Control Limits % <br />% Recovery <br />Trifluorotoluene <br />70 <br />130 85 <br />Analytes reported as N.D. were not present above the stated limit of detection. <br />SEQUOIA ANALYTICAL - ELAP #1210 <br />— 4�— <br />Mike Grego <br />Project Manager <br />Page: 11 <br />