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Sequoia 6$0 Chesapeake Drive Redwood City.CA 94063 (650)364-9606 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)921-0100 <br /> Analytical 1455 McDowell Blvd.North.Ste,D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> r <br /> si:::::i: :::::::ai::::::: iiiiiiciiiiiiiiiiiiiiiiiii 'iiiiee _ iiiiiiiiiiii-eEiiiiiiiiii:iiiiii iliiiiiiiiiiiiiiiiiiiiiiiiiii:iiiiiiiiiiiiiiiiiiiiiiii:iiiiii <br /> Sequoia Analytical-San Carlos Client Proj. ID: L90401 9-01/ATC 17295.0001 Sampled: <br /> 1551 Industrial Road Sample Descript: Method Blank Received: 04/09/99 <br /> San Carlos, CA 94070 Matrix: LIQUID Extracted: 04/11/99 <br /> Analysis Method: EPA 8015 Mod Analyzed: 04/13/99 <br /> .: <br /> Tff Attention: M. Gregory...:................. Lab Number: 9904266 44 Reported:......0......4........../......1......9........./. 99 <br /> ............................................................_............................ -...................................................................................................... .... <br /> ......:::::::::::::::::::: : :i i:::::::::::::::::::: :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: <br /> ...... ......... <br /> ................................................... <br /> QC Batch Number: GC041 1990HBPEXA <br /> Instrument ID: GCHP4B <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> ug/L u9/L <br /> TEPH as Diesel 50 N.D. <br /> Chromatogram Pattern: <br /> Surrogates Control Limits% a/o Recovery <br /> n-Pentacosane (C25) 50 150 92 <br /> I <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> Oloject Manager Page: 7 <br />