2009-09-21_PERMIT FILE - C1980007A ‎(5)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 9/21/2009
• Doc Name: Mine Water Control Plan
• Section_Exhibit Name: Exhibit 66 Mine Water Control Plan
• Media Type: D
• Archive: Yes

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TABLE 45E
Pond Volume Summary
MCC Impoundments
Pond MB-3 MB-5E SG-1 NSSA RPE
Pond Volume to Invert of 2.51 9.08" 2.51 0.34 2.83
Emergency Spillway (ac-ft) (6064.5) (6052.5) (6774.0) (6076.7) (6105.0)
Sediment Storage Volume 0.01 0.55* 0.01 0.01 0
(ac-ft)
10-yr 24-hr Storm Volume 0.50 6.68 1.86 0.19 1.21
(ac-ft)
Detention Volume (ac-ft)** 0.97 3.06 1.76 0.24 1.09
*Volume for 1 cell of 2-cell pond. Total = 18.16 ac-ft water / 1.10 ac-ft sediment.
**Detention volume is the volume detained at the peak 10-year stage.
Exhibit 66
Appendix A: Output Summary Tables
1 of 1
Revised August 2009, TR 119