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KENNECOTT ENERGY CORPORATION <br />COLOWYO MINE <br />001A -Streeter Watershed SEDCAD Model Input <br />Structure 7, Subwatershed 1 (S7-SWS1) <br />Disturbance: <br />Topsoil & Seeded: 0 acres <br />1-2 Year Reclamation: 0 acres <br />3+ Year Reclamation: 19.45 acres <br />Undisturbed: 10.30 acres <br />Total Subwatershed Area: 29.7'5 acres <br />Hydrology: <br />Time of Concentration: <br />Elevation Length Description <br />75 500 Upland <br />100 400 Grassed Waterweiy <br />275 900 Channelw/Baseflow <br />Curve Number. 5'~3 <br />Sediment: <br />Rainfall Factor.' 19 <br />Soil Erodibility Factor.' 0.2;8 <br />Length-Slope Factor: <br />Elevation Length Slope <br />200 300 66.7'% <br />200 650 30.8`% <br />125 200 62.5% <br />Average <br />175 383 53.3'% <br />Control Factor. 0.03 <br />Practice Factor: 0 R18 <br />~~ <br />