2001-12-11_PERMIT FILE - C1996084 ‎(10)‎

• Permit No: C1996084
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: Exhibit 15-16 Mine Area P2 SEDIMENT CONTROL POND 2-2
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
CoPYr~9ht 1998 Pam¢la J SUwab
Civil Software Design
•

Stru SWS
# #
Soil K
L (ft)
S (~/a)
C
p
PS #
Sediment
(tons) Peak
Sediment
Conc.
(mg/I) Peak
Settleable
Conc
(ml/I)
24VW
(ml/I)
2 0.320 100.00 35.00 0.0060 1.0000 4 0.2 5,507 1.49 0.71
3 0.320 225.00 8.00 0.0060 1.0000 4 0.1 1,409 0.38 0.18
4 0.320 370.00 2.70 0.7100 1.0000 4 11.9 45,804 12.41 6.90
5 0.320 100.00 30.00 0.7100 1.0000 4 133.7 430,451 116.63 67.00
6 0.320 225.00 10.00 0.7100 1.0000 4 21.9 168,806 45.74 25.77
7 0.320 250.00 0.50 0.7100 1.0000 4 2.9 10,766 2.92 1.62
8 0.320 100.00 32.00 0.7100 1.0000 4 511.6 506,586 137.81 79.66
9 0.370 100.00 32.00 0.0060 1.0000 1 0.7 6,557 3.56 1.69
10 0.370 175.00 13.00 0.7100 1.0000 1 470.6 332,723 180.60 102.74
11 0.370 175.00 14.00 0.0060 1.0000 1 2.6 3,903 1.66 0.94
12 0.370 175.00 15.00 0.7100 1.0000 1 1,003.2 410,473 222.80 127.62
S' 2,159.5 341,651 155.90 81.20
it3 ~ 2,952.5 355,071 144.29 77.13
Subwatershed Time of Concentration Detai/s;
•
C~
J
S~u SW
5 Land Flow Condition Slope (%) )ist.
Ve ( Hori(f
; ist. V(fPtlj Time (hrs)
# R t
#1 1 1. Forest with heavy ground litter 27.27 90.OD 330.00 1.320 0.069
ttl 1 Time of Concentration: 0.069
#1 2 1. Forest with heavy ground litter 34.78 80.00 230,00 1.490 0,042

#1 2 Time of Concentration: 0.042
#1 3 1. Forest with heavy ground litter 7.78 14.00 180,00 0.700 0,071
#1 3 Time of Concentration: 0.071
#1 4 5. Nearly bare and unfilled, and 2.70 10.00 370.00 1.640 0,062 ~
alluvial valley fans
#1 4 Time of Concentration: 0.062
#1 5 5. Nearly bare and unfilled, and 29.63 80.00 270.00 5.440 0.013
alluvial valley fans
#1 5 Time of Concentration: 0.013
#1 6 5. Nearly bare and un[illed, and 10.00 10.00 100.00 3.16D 0,008
alluvial valley fans
#1 6 Time of Concentration: 0.008
#1 7 S. Nearly bare and unfilled, and 0.50 1.25 260.OD 0.7D0 0.099
alluvial valley fans
Jl1 7 Time of Concentration: 0.099
#1 8 5. Nearly bare and untilled, and 31.91 150.00 470,00 5.640 0.023
alluvial valley fans
#1 8 Time of Concentration: 0.023
#2 1 1. Forest with heavy ground Iltter 8.21 23.00 280,00 0.720 0,108
ii2 1 lime of Concentration: 0.108
Filename: Pond 2-1 and 2 revised.sc4 Printed 04-17-2001