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Sequoia 680 Chesapeake Dnve Redwood City,CA 94063 (415) 364-9600 FAX(415) 364 9233 <br /> 404 N W3get Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> a- -N Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 %00 FAX(916) 921 0100 <br /> Touchstone Developments Client Prol IDChevron 9-8264/82641 Sampled 11-/07/95 <br /> 6280 Stoneridge Mall Rd B211 Sample Descript T-6 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 9511587-12 Reported 11116195 <br /> OC Batch Number 6C111095BTEXEXA _ <br /> Instrument ID GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 10 90 <br /> Benzene 00050 1 2 <br /> Toluene 00050 0 062 <br /> Ethyl Benzene 00050 027 <br /> Xylenes (Total) 00050 075 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 106 <br /> I <br /> Analytes reported as N D were not present above the stated lima of detection <br /> SEQUO ANALYTICAL - ELAP #1210 <br /> Mark Cargasacchi <br /> Project Manager Page 18 <br />