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.• <br />SOIL ERODIBILITY FACTOR: <br /> <br />Soil Type Erotlibiliry <br /> Factor, K <br />Clay Loam 0.28 <br />SLOPE FACTOR: <br />KERR COAL MINE <br />CALCULATED SEDIMENTOLOGY DATA <br />RECLAIMED MINE CONDITION PIT 7 <br />Length <br /> <br />R) Slope <br /> <br />% m Slope <br />Angle <br />tae ) LS <br />Factor <br />85 20 % 0.6 11 3 3.07 <br />85 20.0°o O.fi 11.3 3.07 <br />85 30 0 % 0 6 18.7 d.76 <br />85 30.0 % 0.8 16.7 4.78 <br />BS 280% O6 15.8 443 <br />BS 30.0% 0.6 16.7 1.76 <br />85 30.0 % 0.6 16.7 4.78 <br />280 5.0 % 0.5 2.9 1 12 <br />190 6.0 % 0.5 3 4 1.09 <br />130 1.0% 0.3 OB 0.16 <br />Average LS = 3.20 <br />The LS Factor was calculated by: <br />LS = (Slope LengfMl.6)"m'(f0.8'sin(slape angle) + 0 OJ) fa Slopes < B% <br />LS = (Slope LengfM2.6)"m'(16 8'sin(slope angle) - 0.5) 7ur Slopes > 9% <br />When" <br />Slope i 3% m = 0.3 <br />Slope=4% m=0.9 <br />5%>Slope <f0% m=05 <br />Slope>f0% m=0.6 <br />COVER AND PRACTICE FACTORS: <br />Cover Cover Canopy Cover Practice <br />Type Factor, C Factor, P <br /> %) % <br />Reclaimed 67% 0% 0.07 O.BO <br />ANNUAL SEDIMENT YIELD <br />The following spreadsheet W lculafes the predicted sediment yield for the pm/ed area. The gross setlimerd geld <br />Is determined accoNinp to the Revised Universal Soil Loss Equation. <br />PARAMETER DESCRIPTION VALUE <br />Annual Rainfall Faclar 16.50 <br />Soil Erotlibility Factor 0.28 <br />Length Slope Factor 3.20 <br />Cover Factor 0.07 <br />Pmdice Factor O.BO <br />Grass Annual Sedimem Yelo 0 B3 tons/acre/year <br />