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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (4t5) 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 Striker Avenue Suite a Sacramento CA 95834 (9t6) 921 9600 FAX(916) 921 0100 <br /> Touchstone Developments Client Prol ID Chevron 9-8264 /8264 Sampled 02/07/96 <br /> 17170 Keaton Ave Sample Descript 8-4-13 5 Received 02/09/96 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 02/13/96 <br /> Analysts Method EPA 8015 Mod Analyzed 02/15/96 <br /> Attention 'Tim Walker Lab Number 960270 7-1 4 Reported 02116f96 <br />)C Batch Number GCO213960HBPEXB <br /> istrument 1D GCHP46 <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 80 <br /> i <br /> sults quantitated against a diesel standard <br /> nalytes reported as N D were not present above the stated limit of detection <br />,E000IA ANALYTICAL - ELAP 41210 <br /> Follett <br /> Manager Page 77 <br />