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KENNECOTT ENERGY CORPORATION <br />COLOWYO MINE <br />O10A -East Taylor Watershed SEDCAD Model input <br />Structure 5, Subwatershed 1 (SS-SWS1) <br />Disturbance: <br />Topsoil & Seeded: 0 acres <br />1-2 Year Reclamation: 0 acres <br />3+ Year Reclamation: 17.52 acres <br />Undisturbed: 4.68 acres <br />Total Subwatershed Area: 22.20 acres <br />Hydrology: <br />Time of Concentration: <br />Elevation Length Description <br />380 1950 Grassed Waterway <br /> Curve Number: 54 <br /> Sediment: <br /> Rainfall Factor <br />' 19 <br /> . <br /> Soil Erodibility Factor: 0,28 <br /> Lengfh-Slope Factor: <br /> Elevation Length Slope <br /> 75 400 18.8% <br /> 405 1850 21.9% <br /> Average <br /> 240 1125 20.3% <br /> Control Factor: 0,02 <br /> Practice Factor: 0.49 <br />1x11 <br />~ r <br />