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41) 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,Sunt,8 Sacramento CA 95834 (9t6) 921 9600 FAX(916) 921 0100 <br /> Touchstone Developments Client Pros ID Chevron 9-8264/8264-1 µ - Sampled -11-/07/95 <br /> 6280 Stoneridge Mail Rd B211 Sample Descript T-7 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 9511587-13 _ Reported 11j1 6J95 <br /> OC Batch Number GC1113950HBPEXA - <br /> Instrument ID GCHP5A <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> mg/K9 mg/K9 <br /> TEPH as Diesel so 97 <br /> Chromatogram Pattern C9-C24 Unidentified HC <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 95 <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 /> SEQUOI ANALYTICAL - ELAP #1210 <br /> Mark Car asacchi <br /> IFct Manager Page 20 <br />