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1 <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX (650)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 />' Pacific Environmental Group Client Prod ID 311-174 1A/BP #5447,Stockton Sampled 02/13/98 <br /> 2025 Gateway Place, Suite 440 Sample Descnpt PP-6 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 />' -Attention Joe Muzzio Lab Number 9802B86-12 - Reported 03f30198 <br /> OC Batch Number GCO218980HBPEXC <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 53 <br /> Chromatogram Pattern <br />' unidentified HC C9-C24 <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 127 <br /> 1 <br /> 1 <br /> 1 <br />' Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 711210 <br /> I <br />' Tod Granicher <br /> Project Manager Page 24 <br /> 1 <br />