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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (4f 5) 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 Stnker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> Touchstone Developments Client Prol ID Chevron 9-8264/ 9-8264 Sampled 02/06/96 <br /> 17170 Keaton Ave Sample Descnpt MW-2-100 Received 02/09/96 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 02/13/96 <br /> Analysis Method EPA 8015 Mod Analyzed 02/14/96 <br /> Attention Tim Walker Lab Number 9602708-16 Reported 02123196 <br /> QC Batch Number GCO213960HBPEXB <br /> Instrument ID GCHP4B <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TEPH as Diesel 1 0 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 89 <br /> esults quantitated against a diesel standard <br /> knalytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> -�""- '4�/� <br /> C Follett <br /> t Manager Page 18 <br />