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680 Chesapeake drive Redwood City CA 94063 (650)364-9600 FAX(650925)364-9233 <br /> 9 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (9Z5)988-9600 FAX( ) 88-9673 <br /> � Analytical 819 Striker Avenue Supe s Sacramento CA 95834 (916)921-9600 FAX(916)9z1-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> r-:7 r __ =••«u-�'y'i'i'"' w�„'_".f:�„ <br /> Gettler RyanZGeostrategies _ Client Prol ID Former Unocal SS#0187 Sampled 11/10/98 <br /> 1/10/9988 <br /> 6747 Sierra ourt Suite J Sample Descript U-4 / / <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 11/16/98 = <br /> Attention Deanna Harding_ _ Lab Number- 9811635-05_ « _ ____ _ _ Reported 11f23f98 - <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 0 50 N D <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoiuene 70 130 108 <br /> f <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> ranicher <br /> Project Manager Page 5 <br />