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Sequoia 680 Chesapeake Drive Redwood City, CA 94063 (415) 364-9600 FAX(415)364 9233 <br /> ,1) 404 N Wigct Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> Touchstone DevelopmentsClient-Prol-ID Chevron 9-8264/8264-1 Sampled 11/07/95 <br /> 6280 Stoneridge Mall Rd 8211 Sample Descnpt P-3 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 9511587-03 _ _ Reported 11116195, <br /> OC Batch Number GC1 11 095BTEXEXA <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 39 <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 0 016 <br /> Xylenes (Total) 00050 0 036 <br /> Chromatogram Pattern <br /> Gas & Unidentified HC +<C9 <br /> Surrogates Control Limits% % Recovery <br /> Trlfluorotoluene 70 130 131 Q <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQU IA ANALYTICAL - E=LAP 01210 <br /> Mark Car6llasacchi <br /> Project Manager Page 6 <br />