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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creck 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 /> i <br /> Pacific Environmental Group Client Prol ID 920-119 1A/9-6171, Stockton Sampled 12/23/97 <br /> 2025 Gateway Place, Suite 440 Sample Descript SP-1 Received 12/23/97 <br /> San.lose, CA 95110 Matrix SOLID Extracted 12/26/97 <br /> Analysis Method EPA 8015 Mod Analyzed 12/29/97 <br /> Attention Tim Anensen Lab Number 9712E29-06 Reported 01J05J98 <br /> OC Batch Number GC1226970HBPEXA <br /> Instrument ID GCHP5B <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TEPH as Diesel 1 0 50 <br /> Chromatogram Pattern. C9-C24 Unid -HC <br /> Surrogates Control Limits% % Recovery <br /> n-Pentacosane (C25) 50 150 118 <br />'10 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> Granicher <br /> Project Manager Page 14 <br />