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ENERGY FUELS <br />CALCULATED SEDIMENT YIELD <br />RATON CREEK MINE <br />• SOIL ERODIBILITY FACTOR: <br />Sa'~ Type eca~tnliry <br />Facior.K <br />Sandy Loom 0 32 <br />TOTAL <br />SLOPE FACFOR: <br />~~.v d~ . 7 <br />1 <br />Length Elevation Slope m Slape LS <br /> Change Angle Fpcta <br />(h) (h) (%) (deg) <br />d2 Id 3J 3% 0.6 10.4 3.47 <br />the LS Factor was calcNaled by <br />L5=(Slope Length/726)^m'(10.8Sm(slope angle)+DOJ) for 5/oPes<9% <br />LS= (Slope Lenglh,026)^m'(l6.8'sm(slope angle) - D.5) for Siopes> 9% <br />Where' <br />• Sbpe <3% m=DJ UI <br />Slo e=d% m=D.4 C <br />5%~S/ope<10% m=05 3Z'~~ (.D <br />Slape>lD% m.D.6 <br />COVER AND PRACTICE FACTORS: ~`AF~~ <br />Cover Cavei Canopy Cover ractice <br />Type Factor. C Faclor.P <br /> L%) C%) <br /> <br />Reclaimetl (Post-Law) 50% 0% 0 07 0 80 <br />TOTAL: <br />RAINFALL FACTOR: <br />R=7o <br />GRO55 SEDIMENT YIELD <br />//a' r 1 <br />the following spreodsneet calculates the predicted sediment y~zld for the pro/act area. the gross sadimenl geld <br />is determined occordmg to the Revised Universal Sail Loss Equolion. <br />PARAMETER DESCRIPTION VALUE <br />Annual Rainfall Factor 76.00 ~ ./,I <br />Soil ErotllblFdy Factor 0.92 5V.'!_~ <br />Lengm Slope Factor 3.47 1,~+ <br />Cover Factor 0.07 ~ I~ ~1_ <br />• Practlce FOCfOr 0.00 ^_ r <br />Gross Annual Sediment Yield 4 72 Eons/acre/year 'Y <br />