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PERMFILE71521
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PERMFILE71521
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Entry Properties
Last modified
8/24/2016 11:20:49 PM
Creation date
11/20/2007 11:53:51 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1996083A
IBM Index Class Name
Permit File
Doc Date
9/11/2006
Doc Name
Appendix A to Appendix C -Report Dated 11/10/03
Section_Exhibit Name
Coal Mine Waste Disposal Area No. 2
Media Type
D
Archive
Yes
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Q=AXV= <br />Q REQUIRED -Peak Discharge <br />Riprap Sizing -Flume Outlet Channel <br />D50 =Size of Riprap <br />D50 = ((V X S^.17)/7.58))^2 <br />D50 =Diameter in feet <br />V =Velocity <br />S =Slope <br />D50 = 0.51 feet <br />55.26 CFS <br />55.21 CFS <br />6 inches Use 6" to 18" Rock <br />POND DEWATERING <br />USE A PUMP WITH A CAPACITY TO DEWATER IN 48-HOURS <br />POND F <br />AS-BUILT WATER VOLUME 3.68 <br />VOLUME 1199663 <br />PUMP CAPACITY 417 <br />PUMP SIZE <br />Dewatering Time <br />App. B-7i <br />09/06 <br />4" <br />2880.00 Minutes <br />48.00 Hours <br />2.00 Days <br />Acre-Feet <br />Gallons <br />GPM <br />Pump capacity -- 409 gpm with 60' head which includes head loss in pipe. <br />TR-43 <br />AFPRov~ <br />9 ~ii~a 6 <br />
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