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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 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)9ZI-0100 <br /> low Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos,CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> Blaine Tech Services Client Prol ID Chevron 9-2033%990217-P1 _ Sampled 02/17/99 <br /> 1680 Rogers Avenue Sample Descript MW-1 Received 02/17/99 <br /> San Jose, CA 95112 Matrix LIQUID Extracted 02/23/99 <br /> Analysis Method EPA 8015 Mod Analyzed 02/24/99 <br /> Attention Christine Lillie Lab Number 9902842-01 Reported 03JO5199 <br /> QC Batch Number GCO223990HBPEXC <br /> Instrument ID GCHP513 <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TEPH as Diesel 50 220 <br /> Chromatogram Pattern C9-C24 Unid -HC <br /> Surrogates Control Limits% % Recovery <br /> n-Pentacosane (C25) 50 150 95 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - EI_.AP 41210 <br /> IMei Shin <br /> olect Manager Page 4 <br />