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in each grid and the cumulative value is calculated. <br />E = R « K « Ls « C « P , where all the parameters are as defined above <br />Volume Calculations : <br />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:AWestern Fuels Nucla\PR06 Revised Por[ions\ATTACHMFNT 2.053(3) -21 Pond 013 As Built 19AUG09 FINAL_wpd <br />Revised August 2009 (PR06) Attachment 2.05.3(3) -21 -6 <br />