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Sequoia <br /> 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX (650)364 9233 <br /> 404 K W,get 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 /> I _ Pacfic Environmental Group Client Prof ID 311-174 1A/BP #5447,Stockton Sampled 02/13/98 <br /> 2025 Gateway Place, Suite 440 Sample Descript PP-1 Received 02/17/98 <br /> San Jose, CA 95110 Matrix SOLID Extracted 02/20/98 <br /> - Analysis Method EPA 8015 Mod Analyzed 02/21/98 <br /> IAttention Joe Muzzio Lab Number 98021386-07 Reported 03130/98 <br /> 0C Batch Number 000218980HBPEXC <br /> Instrument ID GCHP19B <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TEPH as Diesel 1 0 <br /> 12 <br /> Chromatogram Pattern <br /> Unidentified HC C9-C24 <br /> Surrogates Control Limits % A/o Recovery <br /> n-Pentacosane (C25) 50 150 94 <br /> i <br /> I <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> I <br />' d Granicher <br /> Project Manager Page 12 <br />