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• <br />• <br />J <br />KENNECOTT ENERGY CORPORATION <br />COLOWYO MINE <br />Streeter Watershed SEdCAD Model Input <br />Structure 3, Subvratershed 2 <br />Disturbance: <br />Topsail & Seeded: <br />1-2 Year Reclamatian: <br />3+ Year Reclamatian: <br />Undisturbed: <br />Total Subwatershed Arena; <br />Nydrolo8y: <br />7<me of Concentration: <br />0 acres <br />0 acres <br />63.69 acres <br />0 acres <br />63.69 acres <br />Elevation Length Description <br />6 299 Upland <br />25 817 Grassed Waterway <br />125 892 Diversian <br />138 244.6 Diversian <br />Curve Number: 56 <br />Sediment: <br />Rainfall Factor: 1 ~ <br />Soli Erodibiiity Facfor: 0=~"8 <br />Length-Slope Factor.' <br />Elevation Length Slope <br />75 490 15.3°l0 <br />25 740 3.4°Jo <br />50 400 12.5% <br />Average <br />50 543 10.4% <br />Control Factor: 0.01 <br />Practice Factor: 0.3$ <br />Exh. 7-SP-13 <br />Revision Date: 2/1/06 <br />Revision No.: TR-63 <br />