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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 /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ATC Associates, Inc Client Prod ID Stockton l=ire#2 62574 0001/02 Sampled <br /> " 1260 Graphics Drive Sample Descrlpt Method Blank Received 09/25/98 <br /> Modesto, CA 95351-1502 Matrix LIQUID Extracted 09/30/98 <br /> Analysis Method EPA 8015 Mod Analyzed 10/02/98 <br /> Attention Jeanne Homsey Lab Number 9809G80-03 Reported 10JO7198 <br /> OC Batch Number GC0930980HBPEXE <br /> Instrument ID GCHP4B <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TEPH as Diesel 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> n-Pentacosane (C25) 50 150 98 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> Proje anager Page 5 <br />