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Sequoia 680 Chesapeake Drive Redwood City, CA 94063 (415) 364-9600 FAX(415) 364-9233 <br /> N Wget lane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> ,-!D- <br /> 404 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> Touchstone Developments Client Prol ID Chevron 9-8264 Sampled 11/13/95 <br /> P O Box 2554 Sample Descript TX2-5' Received 11/14/95 <br /> Santa Rosa, CA 95405 Matrix SOLID Extracted 11/16/95 <br /> Analysis Method EPA 8015 Mod Analyzed 11/17/95 <br /> Attention .teff Monroe Lab Number 9511A10-04 _ Reported 11J22/95 <br /> QC Batch Number GC1116950HBPEXB <br /> Instrument ID GCHP5A <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TEPH as Diesel 10 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> n-Pentacosane (C25) 50 150 86 <br />• <br /> Results quantitated against a diesel standard <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOI ANALYTICAL - ELAP #1210 <br /> Mark Cargasacchi <br /> orct Manager Page 10 <br />