2022-07-12_PERMIT FILE - C1981019A ‎(12)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 7/12/2022
• Doc Name: Section 25 Pond Sediment Control During Mining
• Section_Exhibit Name: Volume 18 Exhibit 7 Item 23 Part B
• Media Type: D
• Archive: Yes

Elevation-Capacity-Discharge Table
Elevation Area
(ac)
Capacity
(ac-ft)
Discharge
(cfs)
Dewater
Time
(hrs)
6,855.00 0.047 0.000 0.000
6,855.01 0.048 0.000 0.000
6,856.00 0.102 0.073 0.000
6,857.00 0.156 0.201 0.000
6,858.00 0.191 0.374 0.000
6,859.00 0.228 0.583 0.000
6,860.00 0.266 0.830 0.000
6,861.00 0.306 1.116 0.000
6,862.00 0.348 1.443 0.000
6,863.00 0.391 1.812 0.000
6,864.00 0.436 2.225 0.000
6,865.00 0.483 2.684 0.000
6,866.00 0.532 3.192 0.000
6,867.00 0.582 3.749 0.000
6,868.00 0.635 4.357 0.000 Low hole SPW #1
6,869.00 0.689 5.019 0.473 16.94*
6,870.00 0.746 5.736 0.669 12.98*
6,871.00 0.804 6.511 0.819 11.45*
6,872.00 0.864 7.345 0.945 10.67* Spillway #1
6,873.00 0.927 8.240 8.509 9.10
6,874.00 0.991 9.199 12.033 2.15
6,875.00 1.060 10.224 14.738 2.30 Spillway #2
6,875.04 1.061 10.268 16.437 0.55 Peak Stage
6,876.00 1.125 11.316 56.584
6,877.00 1.187 12.472 168.142
6,878.00 1.250 13.691 330.639
6,879.00 1.318 14.975 558.801
6,880.00 1.386 16.326 834.822
*Designates time(s) to dewater have been extrapolated beyond the 50 hour hydrograph limit.
Detailed Discharge Table
Elevation
(ft)Perf. Riser (cfs)Emergency
Spillway (cfs)
Combined
Total
Discharge
(cfs)
6,855.00 0.000 0.000 0.000
6,855.01 0.000 0.000 0.000
6,856.00 0.000 0.000 0.000
6,857.00 0.000 0.000 0.000
6,858.00 0.000 0.000 0.000
Filename: Exhibit 7 Item 23 Part B 25-Yr 24-Hr Section 25 During Mining.sc4 Printed 03-17-2022
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