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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 /> frill>� Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br />' Pacific Environmental Group Client Prot ID 311-174 1A/BP 5447, Stockton Sampled 02/04/98 <br /> 2025 Gateway Place, Suite 440 Sample Descript SP2-(A-D)comp Received 02/05/98 <br /> San Jose, CA 95110 Matrix SOLID Extracted 02/05/98 <br />' Analysis Method EPA 8015 Mod '' Analyzed 02/06/98 <br /> Attention Jessica Nelligan Lab Number 9802209-02 Reported 02f10198 <br /> OC Batch Number GCO205980HBPEXB <br /> Instrument ID GCHP4B <br />' Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> m9/K9 m9/K9 <br /> TEPH as Diesel so 160 <br /> Chromatogram Pattern C9-C24 Diesel <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 142 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> d Granicher <br /> Project Manager page 7 <br /> I <br />