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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 /> 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)79Z-1865 FAX(707)792-0342 <br /> Gettler RyanlGeostrategies - Client Prof ID Former Unocal SS 8T i ampied�11/10/98- <br />' 6747 Sierra Court Suite J Sample Descript TB-LB Beceived 11/10/98 = <br />' Dublin, CA 94568 Matrix LIQUID ULU 0 3 1994 _ <br />' Analysis Method 8015Mod/8020 Analyzed 11/16/98 µ <br /> Attention Deanna_Harding__ _ _Lab Number-9811635-01 e 11J23j98 <br /> Ci�,tlnr.lr CONTRACTOR$ <br /> Purgeable Total Petroleum Hydrocarbons as Gasoline/BTEX/MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 N D <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 0 50 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 95 <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> Towranicher <br /> Project Manager Page 1 <br /> T <br />