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TABLE 3 <br /> Sedimentation Pond Design - Soils Information <br /> Nucla Mine, Colorado <br /> Soil Type Hydrologic "k" <br /> or Area Soil Group Factor <br /> 18/F-2 D 0.14 <br /> 5810/26-1 B 0.17 <br /> 5810/7C-2 B 0.17 <br /> 5810E/D-2 B 0.17 <br /> 58101/3B-2 B 0.17 <br /> 58101/7C-1 B 0.17 <br /> 9904/D-1,2 D 0.22 <br /> 9904/F-2 D 0.22 <br /> 1E D 0.30 <br /> 1EW D 0.24 <br /> 20C C 0.24 <br /> 30C C 0.31 <br /> 70B B 0.34 <br /> 808 D 0.32 <br /> 810 D 0.24 <br /> Reclaimed C 0.25 <br /> Active Pit + Spoil Piles C 0.21 <br /> Non-topsoiled Regraded Spoil C 0.23 <br /> Topsoil Removed D 0.32 <br /> Source: Gary Wendt, Soil Scientist, Peabody Coal Company (September 15, 1986 and March 7, <br /> 1988). <br /> The curve number and "k" factor for Pond 007 was determined as a weighted average. <br /> 4 <br /> 5 <br />