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l Sequoia 680 Chesapeake Drive Redwood Ciry CA 94063 (650}364-9600 FAX(650) 364-9133 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925}988 9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> qwr Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792 1865 FAX(707) 792-0342 <br />,0 <br /> Blaine Tech Services Client Prol ID Chevron 9-8264/980810-T1 Sampled 08/10/98 <br /> 1680 Rogers Avenue Sample Descrlpt MW-4 Received 08/13/98 <br /> San Jose, CA 95112 Matrix LIQUID Extracted 08/21/98 <br /> Analysis Method EPA 8015 Mod Analyzed 08/25/98 <br /> Attention Fran Thie Lab Number 9808910-04 Reported 08J31 f 98 <br /> OC Batch Number GCO821980HBPEXA <br /> Instrument ID GCHP4A <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 97 <br /> i <br /> Results quantitated against a diesel standard <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA AN LYTICAL - ELAP #1210 <br /> (Manager <br /> y <br /> Page 12 <br />