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KENNECOTT ENERGY CORPORATI©N <br />Cot_oWYO MINE <br />• <br />010A -East Taylor Watershed SEDCAD Model Input <br />Structure ~, Subwa#ershed 1 (S5-SWS1) <br />Disturbance: <br />Topsoil & Seeded: 12.94 acres <br />i-2 Year Reclamation: 0 acres <br />3+ Year Reclamation: 4.58 acres <br />Undisturbed: 1.48 acres <br />Total Subwatershed Area: 19.01 acres <br />Hydratagy: <br />Time of Concentration: <br />Elevatian Length Description <br />380 1950 Diversion <br />Curve Number.' 76 <br />Sediment: <br />• Rainfall Factor 19 <br />Soll Erodibilify Factor: 0.28 <br />Length-Slope Facfor. <br />Elevatian t.ength Slape <br />75 400 18.8°fo <br />400 1700 23.5% <br />Average <br />2'38 1050 21.1 °l° <br />Cantrot Factor. 0.55 <br />Practice Factor, 0.42 <br />• <br />Exh. 7-ET-14 <br />Revision Date: 2/1/06 <br />Revision No.: TR-63 <br />