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_GENERAL DOCUMENTS - C1981017 (234)
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_GENERAL DOCUMENTS - C1981017 (234)
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Last modified
11/2/2020 10:17:12 AM
Creation date
6/19/2012 2:59:41 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981017
IBM Index Class Name
GENERAL DOCUMENTS
Doc Name
Bid Documents (IMP) 1997 Correspondence
Permit Index Doc Type
General Correspondence
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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order to convey runoff to sediment ponds. This will not be <br /> difficult at the M stockpile, however, due to elevation <br /> differences, the B stockpile drainage system will present <br /> engineering challenges. <br /> The berm surrounding the M stockpile will be pushed north, <br /> providing topsoil substitute at that location. The material <br /> obtained from pushing in the B back wall will be amended as <br /> necessary to act as topsoil substitute. <br /> An alternative approach to reclamation at these areas would be to <br /> push the coal fines off of the back walls and from the floors of <br /> each facility, depositing them at the base of the back walls. <br /> Enough of the top edge of each back wall could be pushed down to <br /> cover the coal with three or four feet of dirt. This would reduce <br /> the backwall at each facility by about ten feet, somewhat <br /> mitigating the vertical component of each wall. The majority of <br /> the floor of each facility would remain in place, but would be <br /> ripped to enhance plant growth and infiltration. Drainage would be <br /> addressed at each facility. Both areas would be fertilized, <br /> mulched and seeded. <br /> The alternative approach would more closely coincide with Resources <br /> development plan, particularly at the B stockpile where a home site <br /> is contemplated. However, the proposed reclamation concept more <br /> closely follows the approved plan, and, more importantly, provides <br /> a greater degree of geomorphic stability than that provided by the <br /> alternative. <br /> Glory Hole Pad <br /> the glory hole pad is located upslope and north east of the B <br /> stockpile location. This is a flat pad about two acres in size <br /> which was constructed, but never used, for coal storage. The <br /> facility was created by cutting down a ridge and spoiling the <br /> material over the out slopes to form a flat bench. Permit <br /> correspondence indicates that this facility will be restored to <br /> approximate original contour by pulling an estimated 65,000 cubic <br /> yards of material up from the outslopes by using a dragline. <br /> Observations of the area indicate that the pad in its present <br /> configuration appears to be stable. No mass instability has been <br /> observed, nor has surficial erosion become apparent. The pad, as <br /> do the side slopes, support a fair amount of vegetation. <br /> The proposed reclamation concept for this facility is to excavate <br /> a rolled dip on contour around the perimeter of the facility to <br /> encourage sheet flow of runoff from the pad area. Light ripping <br /> and interseeding with the site seed mixture as necessary to enhance <br /> revegetation would be accomplished. Tree planting on the pad and <br /> possibly on the outslopes may be undertaken. Implementing this <br /> concept during 1997 will not preclude additional work in the future <br /> 5 <br />
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