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Storm Type: ....................... =11 <br />Pond and swamp areas spread <br />throughout watershed ............... = 0.00 percent of A <br />0.0000 Acres <br />2. Frequency ........................yr <br />= 10 <br />3. Rainfall ,P(24 - hour) .............. <br />in = 2.00 <br />4. Initial abstraction, la............ <br />= 0.3256 <br />5. Compute la /P ....................... <br />= 0.1628 <br />6. Unit peak discharge, qu ...... <br />csm/in = 692.90 <br />7. Runoff, Q .........................in <br />= 0.8490 <br />8. Pond & swap adjustment factor .... Fp = 1.00 <br />9. Peak Discharge,gp ...............cfs <br />= 35.0299 <br />Time of Concentration (SCS Method) <br />Project: O13POND <br />Location: NEW HORIZON MINE <br />Developed <br />11/30/2007 07:49 <br />By: R L GUBKA Date: 11/30/07 <br />Checked: Date: <br />Curve Number: 86 <br />Length of Flow (ft): 2635 <br />Average Land Slope (percent): 13.2 <br />Time of Concentration (hrs): 0.26 <br />Pond Volume Calculation based on Universal Soil Loss Equation'! 1/30/2007 07:56 <br />Input Data <br />Landuse Area Rainfall Erod- Length Slope Ls Cf Pf <br />(ft ^2) Factor ability (ft) ( %) <br />DRYLAND 1660071.6 50.0 0.37 2635.0 13.2 10.82 0.50 1.00 <br />Runoff = 0.849 inch. <br />Sediment Density = 94.000 <br />Revised August 2009 (PR06) Attachment 2.05.3(3) -21 -4 <br />