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' 680 Chesapeake Drive Redwood City CA 94063 650 364-9600 FAX 650 364-9233 <br /> Sequoia ( ) <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX{92.5}988-9673 <br /> 8i9 Striker Avenue Suite 8 Sacramento CA 95834 (916)92t-9600 FAX(9t6)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 /> ATC Associates, Inc Client Prod ID Ripon Unified School Sampled 01/27/99 <br /> 1117 Lone Palm Avenue Sample Descript RUSD-MW2-30 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 /> tAttention Drew Van Allen Lab Number 9901 E94-05 Reported 03124199 <br /> C Batch Number SP0203998015EXA <br /> Instrument ID HP-38 <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br />'Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TEPH as Diesel 10 79 <br /> Chromatogram Pattern Diesel <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 128 <br /> I <br /> 1 <br /> I <br /> 1 <br /> Lnalytes reported as N D were not present above the stated limit of detection <br /> OMA ANALYTICAL - ELAP #1271 <br /> 1 <br /> Iroject Manager Page 13 <br /> 1 <br />