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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />t <br />T880161 <br />Table D.1 -Hydraulic Conductivity Data, Douglas County, Colorado <br />Material <br />Pierre <br />Shale <br />Weathered <br />Pierre <br />Shale <br />Unweathered <br />Test <br />Interval <br />(feet below <br />Well round <br />BH-1 26.5-32.4 <br />BH-10 21.0-31.1 <br />BH-17 27.3-42.3 <br />BH-1 42.6-69.1 <br />BH-1 51.1-69.1 <br />BH-8 34.3-40.0 <br />BH-4 61.2-73.3 <br />Packer Test Recovery Test <br />Hydraulic Hydraulic <br />Conductivity Conductivity Geometric <br />Value Value Mean <br />~cm/sec) {cm/sect (cm~ecL <br /> <br />7.6 x 10-6 <br />9.6 x 10-6 <br /> 5.1 x 10-6 <br /> 7.2 x 10-6 <br />7.6 x 10-8 <br />1.8 x 10~~ <br />4.9 x 10-~ <br />1.8 x 10-6 <br />3.3 x 10-7 <br />Source: Hydrogeologic and Geotechnical Characterization of Proposed Foothills Landfill, <br />Douglas County, Colorado, June 6, 1986, by Hydro-Search, Inc. <br />-11- <br />