2010-12-08_PERMIT FILE - C1981008 (10)

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• SEDCAD 4 for Windows Number of Riser Height Diameter Barrel Barrel Slope Diameter 6 (ft) (in) Structure Detail; Structure #1 t Pond Pond Inputs: *Sediment capacity based on Average Annual R of 12.0 for 2 year(s) Perforated Riser Riser Barrel Number of Riser Height Diameter Barrel Barrel Slope Diameter Spillway Elev Manning's n Holes per (ft) (in) Length (ft) (070) (in) (ft) Elev 24;00 6.001 24.00 100.00 0.01 0.0150 5,555.00 1 Straight Pipe • Barrel Barrel j Entrance Tailwater Entrance Tailwater Barrel Manning's Spillway Spillway Diameter Length Diameter Loss Depth Slope ( °k) n Elev (ft) Depth (in) (ft) Slope ( %) Coefficient (ft) 18.00 20.00 2.00 0.0150 5,557.00 0.50 0.00 Straight Pine Barrel Barrel j Entrance Tailwater Entrance Tailwater Barrel Manning's Spillway Diameter Length Diameter Length Slope ( %) ! Loss Depth (in) (ft) Slope ( %) n Elev (ft) , 0.0150 5,557.00 (in) (ft} ! Coefficient (ft) 18.00 20.00 2.00 0.0150 5,557.001 0.50 0.00 Straight Pipe Barrel Barrel i Entrance Tailwater Barrel Manning's Spillway 0.01 ac -ft Diameter Length I _.Loss Depth Slope ( %) n Elev (ft) (in) (ft) I Coefficient (ft) 18.00 20.00 2 -00 , 0.0150 5,557.00 0.50 0.00 Pond Results: Initial Pool Elev: 5,552.00 ft Initial Pool: 2.54 ac -ft *Sediment Storage: 0.01 ac -ft Dead Space: 0.30% Peak Elevati 5,554.55 ft H'graph Detention Time: 15.39 hrs Pond Model: CSTRS Filename: 013POND 10YR DESIGN postmine 24Aug09.sc4 Printed 08 -24 -2009 • Revised May 2010 (PR06) Attachment 2.05.3(3) -6 -15