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<br />SENECA II WEST MINE <br />POND 006 PHASE IV SUMMARY <br />Run-off Volume (10-year, 24-hour) <br />Peak Discharge (25-year, 24-hour) <br />Sediment Volume (1 year) <br />Outlet Works <br />Principal Spillway: 24" CMP Riser with 24" culvert <br />Top of Riser <br />Base of Riser <br />Emergency Spillway: Trapezoidal Channel <br />Bottom Width <br />Side Slopes <br />Invert <br />Peak Water Elevations <br />10-year, 24-hour <br />25-year, 24-hour <br />Top of Embankment <br />Freeboard <br />Sediment Storage (1.5 ft below principal spillway invert) <br />Years Storage <br />Peak Settleable Concentration (10-year, 24-hour) <br />22.32 ac-ft <br />165.9 cfs <br />6.21 ac-ft <br />7071.5 ft <br />7065.2 ft <br />15ft <br />3 H: I V <br />7075.5 <br />7075.4 ft <br />7077.9 ft <br />7080.0 ft <br />2.1 ft <br />8.70 ac-ft <br />1.4 years <br />0.02 ml/I <br />L~ <br />