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SEDCAD 4 for Windows <br />(:nm,rinF4 l oon -9M7 0-1. I Q,H,.,.K <br />15 <br />Structure #46 (Pond) <br />• Lower Coal Stockpile Sump (LCSS) <br />Pond Inputs: <br />Initial Pool Elev: 6,653.20 ft <br />Initial Pool: 2.59 ac -ft <br />Straight Pipe <br />Barrel <br />Barre! <br />Capacity <br />(ac -ft) <br />Discharge <br />(ds) <br />Dewater <br />Time <br />(h►s) <br />Entrance Tailwater <br />6,645.00 <br />0.170 <br />Barrel <br />Manning's <br />Spillway <br />Diameter <br />Length <br />0.185 <br />0.000 <br />Loss Depth <br />6,647.00 <br />0.234 <br />Slope ( %) <br />n <br />Elev (ft) <br />(in) <br />(ft) <br />0.655 <br />0.000 <br />Coefficient (ft) <br />18.00 <br />50.00 <br />2.501 <br />0.0240 <br />6,653.001 <br />0.90 0.00 <br />Emergency Spillwax <br />Spillway Elev Crest Length Left Right Bottom <br />(ft) Sideslope Sideslope Width (ft) <br />6,655.00 20.00 3.00:1 3.00:1 10.00 <br />Pond Results: <br />Peak Elevation: 6,655.87 ft <br />• Dewater Time: 1.57 days <br />Dewatering time is calculated from peak stage to lowest spillway <br />Elevation - Capacity- Discharge Table <br />• <br />Elevation <br />Area <br />(ac) <br />Capacity <br />(ac -ft) <br />Discharge <br />(ds) <br />Dewater <br />Time <br />(h►s) <br />6,645.00 <br />0.170 <br />0.000 <br />0.000 <br />6,646.00 <br />0.201 <br />0.185 <br />0.000 <br />6,647.00 <br />0.234 <br />0.403 <br />0.000 <br />6,648.00 <br />0.270 <br />0.655 <br />0.000 <br />6,649.00 <br />0.309 <br />0.944 <br />0.000 <br />6,650.00 <br />0.350 <br />1.274 <br />0.000 <br />6,651.00 <br />0.386 <br />1.642 <br />0.000 <br />6,652.00 <br />0.425 <br />2.047 <br />0.000 <br />6,653.00 <br />0.465 <br />2.492 <br />0.000 <br />Spillway #1 <br />6,653.20 <br />0.473 <br />2.586 <br />0.316 <br />21.60 <br />6,654.00 <br />0.507 <br />2.977 <br />3.142 <br />9.80 <br />6,655.00 <br />0.550 <br />3.505 <br />8.425 <br />5.10 <br />Spillway #2 <br />6,655.87 <br />0.615 <br />4.015 <br />33.902 <br />1.20 <br />Peak Stage <br />6,656.00 <br />0.623 <br />4.091 <br />37.701 <br />Filename: PM- 1_Operational_100Yr24Hr 1209.sc4 <br />2.05.3 -E2.G -2.15 <br />Printed 12 -23 -2009 <br />12/09 <br />