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KENNECOTT ENERGY CORPORATION <br />COLOWYO MINE <br />005A -Stoker Siding Pond Watershed SEDCAD Model Input <br />Structure 1, Subwatershed 1 (S1-SWS1) <br />Disturbance: <br />Topsoil & Seeded: 14.50 acres <br />1-2 Year Reclamation: 0 acres <br />3+ Year Reclamation: 0 acres <br />Undisturbed: 0 acres <br />Total Subwatershed Area: 14.50 acres <br />Hydrology: <br />Time of Concentration: <br />Elevation Length Description <br />50 1450 Channel w/Baseflow <br />Curve Number <br />Sediment: <br />• Rainfall Factor: <br />Soil Erodibility Factor: <br />Length-Slope Factor: <br />Elevation Length <br />25 400 <br />10 400 <br />Average <br />17.5 400 <br />Control Factor: <br />Practice Factor. <br />86 <br />19 <br />0.28 <br />Slope <br />6.3% <br />2.5% <br />4.4% <br />0.80 <br />0.38 <br /> <br />