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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 Sinker Avenue,Suite 8 SaCrarnent0 CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Touchstone Developments Client Prol ID Chevron-9-8264/8264-1 µ Sampled 11/07/95 <br /> 6280 Stoneridge Mall Rd B211 Sample Descript T-5 Received 11/08/95 <br /> Pleasanton, CA 94588 Matrix SOLID Extracted 11/13/95 <br /> ` Analysis Method EPA 8015 Mod Analyzed 11/14/95 <br /> ' Attention Ann Marie Dockstader Lab Number 9511587-11 _ Reported 11J16195 <br /> OC Batch Number GC1113950HBPEXA <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 10 30 <br /> Chromatogram Pattern C9-C24 Unidentified HC <br /> Surrogates Control Limits% % Recovery <br /> n-Pentacosane (C25) 50 150 76 <br /> 0 <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 />�ect Manager Page 17 <br />