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REV99087
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REV99087
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Entry Properties
Last modified
8/25/2016 3:23:03 AM
Creation date
11/22/2007 12:23:36 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Revision
Doc Date
9/18/2000
Doc Name
TECHNICAL REVISION 86 ADEQUACY REVIEW
From
DMG
To
MOUNTAIN COAL CO
Type & Sequence
TR86
Media Type
D
Archive
No
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<br />Which is correct? Please correct the appropriate information and resubmit. The crest of the <br />emergency spillway (6076.73 feet) + the flow depth (0.69 feet) = 6077.42 feet. Adding the <br />freeboard required by Rule 4.05.6(11)(e)) results in a required value of 6078.42 feet, which is <br />higher than the embankment elevation (6078.16 feet). Also "d=1 foot" is annotated on Detail 3 <br />for the emergency spillway but elevations indicate a depth of 1.43 feet. Which is correct. It <br />appears that the emergency spillway is out of compliance. Please provide information to indicate <br />how this will be corrected. <br />The outslope of the pond is indicated as 2:1 but measurements indicate it is 1.6:1. This is not in <br />compliance with Rule 4.056(11)(f). Also, no measurement is provided for the top width of the <br />embankment. Also, the inslope of the pond is not provided to verify compliance with Rule <br />4.05.6(1 I)(f). Please provide this information on the as-built drawing. <br />23. Response accepted. <br />26. Response accepted. <br />29. Response accepted. <br />31. Response accepted. <br />32. Response accepted. <br />Refi~.se Pile Expansion <br />34. Response accepted. <br />38. Response accepted. <br />40. Response accepted. <br />41. Response accepted. <br />This concludes the Division's review of MCC's responses. Please let us know if you have any <br />further questions. <br />Sincerel`~~.,/~~~ <br />v- <br />~.v+" ~ <br />1im Burnell <br />Environmental Protection Specialist <br />
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