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ENFORCE29546
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ENFORCE29546
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Entry Properties
Last modified
8/24/2016 7:36:32 PM
Creation date
11/21/2007 12:18:11 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980005
IBM Index Class Name
Enforcement
Doc Date
1/14/1986
Doc Name
RESPONSE LETTER
From
MLRD
To
PEABODY COAL CO
Violation No.
CV1985081
Media Type
D
Archive
No
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Wadge Impoundment (002 Pond) <br />Rainfall 1,76" <br />CX = 86 <br />S = 1000/CN-10 = 1.63 <br />Runoff = 0.67" <br />Volume = .67" x lft/12in. x 2382 = 133 ac-ft <br />Capacity of 303.6 ac-ft <br />Sediment Storage = 303.6 - 133 = 170.6 ac-ft <br />Peabody estimated 10.2 ac-ft/yr or 54.4 ac-ft since last survey <br />170.6 - 54.4 = 116.2 ac-ft <br />116.7 ac-ft/10.2 ac-ft/yr = 11.4 years remaining storage <br />Sho~A-rea-Pond (003 Pond) <br />~ Runoff <br />11.00 ac-ft total volume <br />11.00 - 3.39 = 7.61 ac-ft sediment <br />60% level is 4.57 ac-ft <br />Current sediment level is 3.01 ac-ft <br />Southeast Area Pond (004 Pond) <br />ac- t Runoff <br />19.77 ac-ft Total Volume <br />19.77 - 9.17 = 10.6 ac-ft Available for Sediment <br />6.36 ac-ft is 60~ level <br />Current sediment level is 1.19 ac -f t. <br />Storage available between principal and emergency spillway is 8.38 ac-f t. <br />Amount of difference between available storage and l0yr-24 hr storm runoff is <br />0.79 ac-f t. <br />An inflow-outflow routing should show that the principle spillway will pass <br />l0yr-24 hr event without passage through the emergency spillway. <br />srs <br />6521E <br />
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