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 Area
(ac)
Capacity
(ac-ft)
Discharge
(cfs)
Dewater
Time
(hrs)
7,118.00 0.267 1.439 0.669 5.35 Spillway #1
7,119.00 0.301 1.723 8.509 10.15
7,120.00 0.340 2.043 12.033 0.70
7,121.00 0.387 2.407 14.738 0.60
7,121.77 0.422 2.720 16.483 0.65 Peak Stage
7,122.00 0.433 2.816 17.018
7,123.00 0.485 3.275 19.026
7,124.00 0.538 3.786 20.842
7,125.00 0.599 4.355 22.512 Spillway #2
7,126.00 0.664 4.986 82.907
7,127.00 0.732 5.684 248.131
7,128.00 0.813 6.456 490.139
7,129.00 0.915 7.319 829.643
7,130.00 1.043 8.298 1,243.042
*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)
7,105.00 0.000 0.000 0.000
7,106.00 0.000 0.000 0.000
7,107.00 0.000 0.000 0.000
7,108.00 0.000 0.000 0.000
7,109.00 0.000 0.000 0.000
7,110.00 0.000 0.000 0.000
7,111.00 0.000 0.000 0.000
7,112.00 0.000 0.000 0.000
7,113.00 0.000 0.000 0.000
7,114.00 0.000 0.000 0.000
7,115.00 0.000 0.000 0.000
7,116.00 3.00>0.000 0.000 0.000
7,117.00 0.473 0.000 0.473
7,118.00 0.669 0.000 0.669
7,119.00 8.509 0.000 8.509
7,120.00 12.033 0.000 12.033
7,121.00 14.738 0.000 14.738
7,122.00 17.018 0.000 17.018
7,123.00 19.026 0.000 19.026
7,124.00 20.842 0.000 20.842
Filename: Exhibit 7 Item 23 Part B 10-Yr 24-Hr Section 25 During Mining.sc4 Printed 03-17-2022
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