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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-%00 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 /> ~ - - - <br />_ Gettler Ryanbeostrategies Client Pro ID " Unocal S5#0123 W- — " " - - "- "- <br />= 6747 Sierra Court Suite J Sample Descri t U-1 Sampled 09/28/98 _ <br />_; Dublin, CA 94588 p p Received 09/28/98 <br /> Matrix LIQUID Extracted 09/30/98 <br /> Analysis Method EPA 8015 Mod Analyzed 10/09/98 <br /> Attention Deanna Harding Lab Number 98091-150-02 - " Reported 11/10198 <br /> CC Batch Number GC0930980HBPEXZ <br /> Instrument ID GCHP56 <br /> Total Extractable Petroleum Hydrocarbons (TEPH) with Silica Gel Cleanup <br /> Analyte Detection Limit Sample Results <br /> Lig/L ug/L. <br /> TEPH as Diesel 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> n-Penta(;osane (C25) 50 - 150 76 <br /> iaiytes reported as N 0 were not present above the slated limit of detection <br /> EQUOIA ANALYTICAL - ELAP #1210 <br /> Wctranicher <br /> Manager <br /> Page g <br />