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Sequoia 680 Chesapeake Drive Redwood Cim CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 96W FAX(510)988 9673 <br /> Analytical 819 Straker Avenue,Suite 8 Sacramento CA 95834 (916) 921 96W FAX(916)921 0100 <br /> r <br /> Touchstone Developments Client=Pro" <br /> ID Chevron 9-8264/8264-1 __-- Sampled 11/07/95 <br /> 6280 Stoneridge Mall Rd B211 Sample Descript SP-3 (A-D) Camp Received 11/08/95 <br /> Pleasanton, CA 94588 Matrix SOLID Extracted 11/08/95 <br /> Analysis Method EPA 8015 Mod Analyzed 11/09/95 <br /> Attention Ann Marie Dockstader _ Lab Number 9511553-03 Reported 11J13195 <br /> OC Batch Number GC1107950HBPEXA _ <br /> Instrument ID GCHP4A <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TEPH as Diesel 5.0 21 <br /> Chromatogram Pattern C9-C24 Unidentified HC <br /> Surrogates Control Limits% % Recovery <br /> n-Pentacosane (C25) 50 150 136 <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 7 <br />