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KENNECOTT ENERGY CORPORATION <br />COLOWYO MINE <br />0O2A -Work Area Watershed SEDCAD Model Input <br />Structure 8, Subwatershed 1 (S8-SWS1) <br />Disturbance: <br />Topsoil 8 Seeded: 68.34 acres <br />1-2 Year Reclamation: 0 acres <br />3+ Year Reclamation: 0 acres <br />Undisturbed: 9.55 acres <br />Total Subwatershed Area: 77.89 acres <br />Hydrology: <br />Time of Concentration: <br />Elevation Length Description <br />190 3400 Grassed Waterway <br />Curve Number <br /> Sediment: <br /> Rainfall Factor: <br /> <br /> Soil Erodibility Factor.' <br /> Length-Slope Factor: <br /> Elevation Length <br /> 100 1650 <br /> 125 2050 <br />Average <br />113 1850 <br />Control Factor. <br />Practice Factor: <br />81 <br />19 <br />0.28 <br />Slope <br />6.1 <br />6.1 <br />6.1 <br />0.71 <br />0.44 <br />• <br />