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f-,-Sequoia <br /> (' 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> ,-Se uoia ,_ 404 N Wlget 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 /> Ana �"tical i, 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)791-1865 FAX(707)792-8342 <br /> Z + = = w <br /> Gettler Ryan%Geostrategies -- ' --Client Prod ID Unocal 2859, 280054 Sampled 08/31/98 <br /> 6747 Sierra Court Suite J Sample Descript TB-LB Received 09/01/98 <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 09/04/98 <br /> Attention Deanna Harding Lab Number 9809003-01 Reported 09120198 <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 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 109 <br /> r <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> IT Granicher <br /> Project Manager Page <br />