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4 T� Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364-9233 <br /> i404 N Iget 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 /> Touchstone Developments µ Client Prol ID Chevron 9-8264 Sampled 11/13/95 <br /> P O Box 2554 Sample Descrlpt TXB-2-17' 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 9511A10-09 _ Reported 11 f22195 <br /> QC Batch Number GC1116950HBPEXB <br /> Instrument ID GCHP5B <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 70 <br /> Results quantitated against a diesel standard <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUO ANALYTICAL - ELAP #1210 <br /> Mark Cargasacchi <br /> Project Manager Page 20 <br />