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REV99478
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REV99478
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Entry Properties
Last modified
8/25/2016 3:23:21 AM
Creation date
11/22/2007 12:26:52 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981022
IBM Index Class Name
Revision
Doc Date
10/14/2003
Doc Name
Enclosed Information on II West Coal Refuse to MSHA
From
Montgomery Watson Harza
To
Mine Safety & Health Administration
Type & Sequence
TR43
Media Type
D
Archive
No
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• <br />• <br />C <br />OXBOW CARBON & MINERALS <br />POND E SUMMARY <br />Runoff <br />Runoff Volume (10-year, 24-hour) 0.81 ac-ft <br />Active Pond Storage 0.38 ac-ft <br />Sediment <br />3 Year Sediment Yield 0.93 ac-ft <br />Pond Sediment Storage 0.93 ac-ft <br />Sediment Storage Elevation 6,027.0 ft <br />Primary Spillway <br />Type 81nch Pipe <br />Invert Elevation 6,027.5 ft <br />Emergency Spillway <br />Type Broad Crested Weir <br />Bottom Width 15.0 ft <br />Invert Elevation 6,029.5 ft <br />Peak Discharge <br />10-year, 24-hour Event <br />Peak Dischazge In (10-year, 24-hour) 16.0 cfs <br />Peak Dischazge Out {]0-year, 24-hour) 1.8 cfs <br />Peak Elevation 6,029.4 ft <br />Peak Settleable Conc. 0.02 ml/1 <br />25-year, 24-hour Event <br />Peak Dischazge In (25-year, 24-hour) 21.1 cfs <br />Peak Discharge Our (25-year, 24-hour) 9.2 cfs <br />Peak Elevation 6,029.? ft <br />Top of Dam 6,03].0 ft <br />Freeboard 1.3 ft <br />Depth of Flow 0.2 fi <br />TR-43 Revised September 2003 <br />
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