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>~ SENECA II West Coal Mine <br />Pond 016 System <br />HYDROLOGIC INPUT PARAMETERS <br />SEDCAD 4 <br />WATERSHED ID <br />Structure 2 -SWS3 <br />Watershed ID: <br />S2-SWS3 <br />Watershed Area: <br />Curve Number: <br />73.8 acres <br />WATERSHED TYPE COVER SOIL GROUP NUMBER (acres) <br />Topsoil Strip ed None C 91 34.3 <br />Aspen/Mountain Brush Good(>70%) B 30 39.5 <br />Total 73.8 <br />CURVE NUMBER 58 <br />Soil Erodability Factor (K): <br />SOIL TYPE AREA (acres) K FACTOR K"AREA <br />Pre-Strip ed 34.3 0.16 5.48 <br />Sk a Silt Loam 39.5 0.28 11.06 <br /> Wei hted K Factor 0.22 <br />Control Factor: <br />r1 <br />SOIL TYPE AREA (acres) C FACTOR C`AREA <br />Pre-Stri ed 34.3 1 34.3 <br />Aspen/Mountain Brush 39.5 0.042 1.7 <br /> Wei hted C Factor 0.49 <br />Practice Factor: <br />SOIL TYPE AREA (acres) P FACTOR P'AREA <br />Undisturbed 39.5 1.0 39.5 <br />Disturbed -Topsoil <br />Stripped 34.3 0.9 30.9 <br />Wei hted P Factor 1.0 <br />TR-56 13-5F-A.19 Revised 09/06 <br />