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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 Crcek 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 Of 00 <br /> _ Touchstone DevelopmentsClient Proles ID- Chevron 9-8264/8264-1 Sampled 11/07/95 <br /> 6280 Stoneridge Mall Rd B211 Sample Descrlpt P-2 Received 11/08/95 <br /> Pleasanton, CA 94588 Matrix SOLID Extracted 11/10/95 <br /> Analysis Method 8015Mod/8020 Analyzed 11/10/95 <br /> Attention Ann Marie Dockstader Lab Number 9511587-02 _ _ Reported -11J16J95 <br /> OC Batch Number GC1 1 1095STEXEXA - <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 1.0 34 <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 0.0050 0 018 <br /> Xylenes (Total) 0.0050 00070 <br /> Chromatogram Pattern <br /> Gas & Unidentified HC +<C9 <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 1500 <br /> I <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQU A ANALYTICAL - ELAP #1210 <br /> Mar gasacchi <br /> Project Manager Page 5 <br />