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KENNECOTT ENERGY CORPORATION <br />COLOWYO MINE <br />• 007A -Prospect Watershed SEDCAD Model Input <br />Structure 3, Subwatershed 2 (S3-SWS2) <br />Disturbance: <br />Topsoil & Seeded: 0 acres <br />1-2 Year Reclamation: 5.84 acres <br />3+ Year Reclamation: 0 acres <br />Undisturbed: 15.71 acres <br />Total Subwatershed Area: 21.55 acres <br />Hydrology: <br />Time of Concentration: <br />Elevation Length Description <br />205 900 Grassed Waterway <br />60 1850 Diversion <br />Curve Number: 51 <br />Sediment: <br />Rainfall Factor: 19 <br />Soil Erodibility Factor: 0.28 <br />Length-Slope Factor: <br />Elevation Length Slope <br />60 350 17.1% <br />255 1200 21.3% <br />Average <br />158 775 19.2% <br />Control Factor: 0.07 <br />Practice Factor.' 0.76 <br /> <br />