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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364-9600 FAX(415) 364 9233 <br /> 404 N eget Lane Walnut Geek CA 94598 (510) 988 9600 FAX(510) 98$9673 <br /> qwr Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Touchstone Developments _ Client Prod ID ~Chevron 9-8264/8264-1 -- Sampled 11/07/95 <br /> 6280 Stoneridge Mall Rd B211 Sample Descript P-8 Received 11/08/95 <br /> Pleasanton, CA 94588 Matrix SOLID Extracted 11/08/95 <br /> Analysis Method 8015Mod/8020 Analyzed 11/09/95 <br /> Attention Ann Marie Dockstader Lab Number 9511554-02 _ Reported 11J13195 <br /> OC Batch Number GC110895BTEXEXB - - <br /> Instrument ID GCHP18 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 10 62 <br /> Benzene 0 050 N D <br /> Toluene 0 050 N D <br /> Ethyl Benzene 0 050 15 <br /> Xylenes (Total) 0 050 120 <br /> Chromatogram Pattern <br /> Weathered Gas C8-C12 <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 100 <br /> Anaiytes reported as N D were not present above the stated limit of detection <br /> SEQUOI ANALYTICAL - ELAP #1210 <br /> Mark Carg sacchi <br /> Project Manager Pae 3 <br /> 0 <br />