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•� Sequoia 680Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650)364-923a <br /> 404 N Wiget(ane Walnut Creek CA 94598 (925)988-%00 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95$34 (916)921 9600 FAX(916)921 0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707) 792 1865 FAX(707) 792-0342 <br /> Blaine Tech Services Client Prol ID Chevron 9-8632/980810-T2 Sampled 08/10/98 <br /> 1680 Rogers Avenue Sample Descript MW-4 Received 08/13/98 <br /> San ,lose, CA 95112 Matrix LIQUID Extracted 08/21/98 <br /> Analysis Method EPA 8015 Mod Analyzed 08/24/98 <br /> Attention Fran Thie Lab Number 9808853-04 Reported 08/31/98 <br /> QC Batch Number GC0821980HBPEXA <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 50 430 <br /> Chromatogram Pattern C9-C24 Unid -HC <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 100 <br /> 49 <br /> Results quantitated against a diesel standard <br /> Analytes reported as N D were not present above the stated lorna of detection <br /> SEQUOIA ANALYTICAL ELAP #1210 <br /> ory <br /> r anager Page 12 <br /> T� <br />