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Required User Input <br />Sediment Delivery Ratio (DR) : Default = 0.37 <br />Time Period,T (years) : Time of analysis; typically the time of the storm event <br />Density of the sediment (D) : The post- deposit density of the sediment <br />Runoff (1) : Calculated from some other routine like Curve Number and Runoff <br />Total Erosion (E, tons /year) = Sum of (E * Area) for all the areas. <br />Total Yield (Y, tons /year) = E * DR <br />Sediment volume per year (Vs) = Y / Density <br />Total Sediment Volume = Vs * Time period <br />Runoff Volume = Runoff (1) * Total Area <br />Total Pond Volume = Runoff Volume + Total Sediment Volume <br />X: \Western Fuels Nucla\Permit Revision 2009\Adequacy Response #1\Final Files\ATTACHMENT 2.05.3(3) -14 POND 011 <br />AS -BUILT 28JAN10 DRAFT.wpd Attachment 2.05.3(3) -14 -24 <br />