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' 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(9Z5)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 tndustnal Road San Carlos, CA 94070 4111 (650) 232-9600 FAX(650) 232 9612 <br />' ATC Associates, Inc Client Prof ID Ripon Unified School Sampled 01/27/99 <br /> 1117 Lone Palm Avenue Sample Descript RUSD-MW3-20 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 /> LAttention Drew Van Allen Lab Number 9901 E94-07 Reported 03f24199 <br /> C Batch Number SP0203998015EXA <br /> Instrument ID HP-313 <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TEPH as Diesel 1 0 N D <br /> Chromatogram Pattern <br />' Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 101 <br /> r <br /> kalytes reported as N D were not present above the stated limit of detection <br /> QUOIA ANALYTICAL - ELAP #1271 <br /> 1 ' <br /> iroject Manager Page 18 <br />