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' 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> Q Sequoia 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 /> 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 /> 1 <br />,ATC Associates, Inc Client Prol ID Ripon Unified School Sampled 01/27/99 <br /> 1117 Lone Palm Avenue Sample Descript RUSD-MW1-20 5 Received 01/29/99 <br /> Modesto, CA 95351-1502 Matrix SOLID Extracted 02/03/99 <br /> Analysis Method EPA 8015 Mod Analyzed 02/03/99 <br /> Attention Drew Van Allen Lad Number 9901E94-01 Reported 03124199 <br /> C Batch Number SP003998015EXA <br /> Onstrument ID HP-3A <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br />'Analyte Detection Limit Sample Results <br /> mg/K9 mg/Kg <br />'TEPH as Diesel 1 0 13 <br /> Chromatogram Pattern Diesel <br />'Surrogates Control Limits% % Recovery <br /> n-Pentacosane (C25) 50 150 123 <br /> I <br /> II <br />(alytes reported as N D were not present above the stated limit of detection <br /> EQUOIA ANALYTICAL - ELAP #1271 <br />'rolect Manager page 2 <br /> t <br />