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• <br />• <br />• <br />SEDCAD 4 for Windows <br />Copyright 1998 Pamela J. Schwab <br />Civil Software Design <br />Drill Pad Sed Control <br />Silt Fence Inputs: <br />Silt Fence Results: <br />Structure Detail; <br />Fence Flow Width ( <br />along Height (ft) Land Slope Tie -back <br />Rate <br />(gpm /sq ft) contour (ft) M) distance (ft) <br />10.0 48.0 2.5 2.00 125.0 <br />*Sediment Storage: 0.00 ac -R <br />*No sediment capacity defined <br />Peak Fence Stage: <br />0.09 ft <br />Peak Water Stage: <br />0.09 ft <br />Dewater Time: <br />0.04 days <br />Trap Efficiency: <br />80.39% <br />Dewatering time is calculated from peak stage to lowest spillway <br />Stage- Capacity- Discharge Table <br />Fence Stage <br />(ft) <br />Water Stage <br />(ft) <br />Area <br />(ac) <br />Capacity <br />(ac -ft) <br />Discharge <br />(cfs) <br />Dewater <br />Time <br />(hrs) <br />0.00 <br />0.00 <br />0.000 <br />0.000 <br />0.000 <br />Top of Sediment <br />0.10 <br />0.10 <br />0.006 <br />0.000 <br />0.118 <br />0.20 <br />0.20 <br />0.011 <br />0.001 <br />0.258 <br />0.30 <br />0.30 <br />0.017 <br />0.002 <br />0.421 <br />0.40 <br />0.40 <br />0.022 <br />0.004 <br />0.606 <br />0.50 <br />0.50 <br />0.028 <br />0.007 <br />0.813 <br />0.60 <br />0.60 <br />0.033 <br />0.010 <br />1.043 <br />0.70 <br />0.70 <br />0.039 <br />0.013 <br />1.295 <br />0.80 <br />0.80 <br />0.044 <br />0.018 <br />1.569 <br />0.90 <br />0.90 <br />0.050 <br />0.022 <br />1.865 <br />1.00 <br />1.00 <br />0.055 <br />0.027 <br />2.184 <br />1.10 <br />1.10 <br />0.061 <br />0.033 <br />2.525 <br />1.20 <br />1.20 <br />0.066 <br />0.040 <br />2.888 <br />1.30 <br />1.30 <br />0.072 <br />0.046 <br />3.273 <br />1.40 <br />1.40 <br />0.077 <br />0.054 <br />3.681 <br />1.50 <br />1.50 <br />0.083 <br />0.062 <br />4.111 <br />1.60 <br />1.60 <br />0.088 <br />0.070 <br />4.563 <br />1.70 <br />1.70 <br />0.094 <br />0.079 <br />5.038 <br />Filename: PCCDewatering.sc4 <br />14 -6 -81 <br />7 <br />Printed 01 -11 -2001 <br />(Rev. 1/01) <br />