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a! <br /> Sequoia680 Chesapeake Dnvc Redwood City CA 94063 (650) 364 9600 FAX(650)364-9233 <br /> 404 N Wiget Cane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Stnker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services Client Pro) ID Chevron 9-8264 Sampled 02/12/98 <br /> 1680 Rogers Avenue Sample Descrlpt MW-2 Received 02/13/98 <br /> San Jose, CA 95112 Matrix LIQUID Extracted 02/18/98 <br /> Analysis Method EPA 8015 Mod Analyzed 02/21/98 <br /> Attention Fran Thie _ Lab Number 9802909-02 Reported 02J24J98 <br /> QC Batch Number GCO218980HBPEXB <br /> Instrument ID GCHP4B <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TEPH as Diesel 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 92 <br /> 0 <br /> Results quantitated against a diesel standard <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA NALYTICAL - ELAP #1210 <br /> Pec <br /> Lgy Pen <br /> P t Manager Page 7 <br />