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580 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Geek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> a- ) 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 /> s}u,..—••^:^•5• •J .»ssml-L-._"....—s—:ssl.a a......u....s–uus_.._ —_.ams ns,,, 4iss»»...»– s......asl�u.Ls=---yssF::7,Ilu .._::..:.mss--Ir.lsswass=�_ –••_•--- - __ ns.. <br /> Gettler Ryan/Geostrategles Client Prol ID Former Unocal S§#0187 Sampled 11/10/98 <br /> 6747 Sierra Court Suite J Sample Descnpt U-9 Received 11/10/98 , <br /> 3. Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 11/16/98 » <br /> Attention Deanna Harding _ _» _ _ Lab Number »........._9811635-10 -Reported 11J23J98 " <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 0 50 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trdluorotoluene 70 130 109 <br /> y . <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> ranlcher <br /> Project Manager Page 10 <br /> .4A4 <br />