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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 /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> r <br /> Touchstone Developments Client Prol ID Chevron 9-8264 / 8264 Sampled 02/07/96 <br /> 17170 Keaton Ave Sample Descript MW-3-11 5 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 9602707-07 Reported 02J16/96 <br />)C Batch Number GCO213960HBPEXB <br /> istrument 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 84 <br /> sults quantitated against a diesel. standard <br /> lalytes reported as N D were not present above the stated limit of detection <br /> EQUOIA ANALYTICAL - ELAP #1210 <br /> eyliFoll <br /> Manager Page 9 <br />