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Sequoia 680 Chesapeake Dnve 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,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Touchstone Developments Client Proj ID Chevron 9-8264/8264-1 -µ Sampled 11/07/95 <br /> 6280 Stonerldge Mall Rd B211 Sample Descript P-1 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 9511587-01 _ Reported 11116j95 <br /> OC Batch Number GC111095BTEXEXA - <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 97 <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 0 036 <br /> Xylenes (Total) 00050 Oil <br /> Chromatogram Pattern <br /> Gas & Unidentified HC +<C9 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 198 Q <br />• <br /> Analytes'reported as N D were not present above the stated limit of detection <br /> SEQUOI NALYTICAL - ELAP #1210 <br /> Mark Cargasacchi <br /> Project Manager Page 4 <br /> I <br />