2001-12-11_PERMIT FILE - C1996084 ‎(8)‎

• Permit No: C1996084
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 15-19 MINE AREA P4 SEDIMENT CONTROL POND 4-1
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
Copyright 1998 Pamela J. SUwab
Civil Somware Design
~~
•
Peak Peak
Stru SWS Sediment Sediment Settleable 24VW
Soil K L (ft) S (%)
# # C P PS # Conc. Conc
(tons) (ml/I)
(rn9/I) (ml/i)
887.4 278,457 151.14 85.11
#3 1 0.240 225.00 s.00 0.0120 1.0000 3 0.2 1,275 0.69 0.3s
1,646.3 300,822 163.28 87.62
Subwatershed Time of Concentration Details;

CJ
Stru
# SWS
#
land Flow Condition
Slope (%) Vert. Dist,
(ft) Horiz. Dist.
(R) Velocity
(fps)
Time (hrs)
#1 1 1. Forest with heavy ground litter 34.29 120.00 350.00 1.480 D.D65
#1 1 Time of Concentration: 0.008
#1 2 1. Forest with heary ground litter 60.00 60.00 100.00 1.950 0.014
#1 2 Time of Concentration: 0.003
#1 3 s. Nearly bare and unfilled, and
alluvial valley fans 13.33 80.00 600.00 3.6s0 0.04s
#1 3 Time of Concentration: 0.045
#1 4 5. Nearly bare and unfilled, and
alluvial valley fans 0.50 1.00 200.00 0.700 0.079
#1 4 Time of Concentration: 0.079
#1 5 5. Nearly bare and unblled, and
alluvial valley fans 33.00 66.00 200.00 5.740 0.009
#1 5 Time of Concentration: 0.009
#1 6 3. Short grass pasture 1.67 20.00 1,200.00 1.030 0.323
#1 6 Time of Concentration: 0.323
#2 1 1. Forest with heavy ground litter 34.00 170.00 500.00 1.470 0.094
#2 1 Time of Concentration: 0.094
#2 2 1. Forest with heavy ground litter 10.34 30.00 290.00 0.810 0.099
#2 2 Time of Concentration: 0.099
#2 3 5. Nearly bare and unfilled, and
alluvial valley fans 30.43 70.00 230.00 6.s10 0.011
#2 3 Time of Concentration: 0.011
#2 4 s. Nearly bare and unfilled, and
alluvial valley fans 26.09 60.00 230.00 5.100 0.012
#2 4 Time of Concentration: 0.012
#2 6 s. Nearly bare and unfilled, and
alluvial valley fans 50.00 60.00 120.00 7.070 0.004
#2 5 Time of Concentration: 0.004
#2 6 5. Nearly bare and unfilled, and
alluvial valley fans 6.25 10.00 160.00 2.500 0.017
#2 6 Time of Concentration: 0.017
#3 1 3. Short grass pasture s.22 12.00 230.00 1.820 0.035
#3 1 Time of Concentration: 0.035
Filename: Pond 4-1 and 2.sc4 Primed 04-26-2001