2001-12-11_PERMIT FILE - C1996084 ‎(2)‎

• Permit No: C1996084
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 15-25 MINE AREA P7 SEDIMENT CONTROL POND 7-3
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
Copyright 1998 Pamela J. Schwab
Civil Software Design
•
Peak Elevation: 6,647.01
H'graph Detention Time: 11.25 hrs
Pond Model: CSTRS
Dewater Tme: 4.51 days
Trap Efficiency: 91.36
Dewatering time is calcu/ated from peak stage to lowest spillway
Elevation-Caoacity-Discharge Table

Elevation Area

(ac) Capacity

(ac-ft) Discharge

(cfs) Dewater
Time
(ham)
6,644.45 1.395 0.000 0.000 Top of Sed. Storage
6,644.50 1.399 0.070 0.000 Low hole SPW #1
6,645.00 1.438 0.779 0.167 51.34'
6,645.50 1.478 1.508 0.403 21.86`
6,646.00 1.518 2.256 0.526 17.23• Spillway #1
6,646.50 1.559 3.026 2.018 8.90
6,647.00 1.600 3.815 2.074 8.65
6,647.01 1.601 3.825 2.074 0.80 Peak Stage
6,647.50 1.642 4.626 2.128
6,648.00 1.685 5.458 2.181
6,648.50 1.728 6.311 2.233
6,649.00 1.771 7.185 2.284
6,649.50 1.815 8.082 2.333
6,650.00 1.860 9.001 2.382 Spillway #2
6,650.50 1.860 9.931 2.894
6, 651.00 1.860 10.861 11.543
6,651.50 I.B60 11.791 25.584
6, 652.00 1.860 12.721 46.457
#Designates time(s) to dewater have been extrapolated beyond the 50 hour hydrograph limit.
Detailed Discharge Table
•
Combined

Elevation
Perf. Rrser (ds) Emergent/ Total
S illwa ds
P Y ( )
Discharge
(cfs)
6,644.45 0.000 0.000 0.000
6,644.50 1.50>0.000 0.000 0.000
6,645.00 1.50>0.167 0.000 0.167
6,645.50 0.403 0.000 0.403
6,646.00 0.526 0.000 0.526
~~
Filename: pond?-3.srA Printed 04-24-2007