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2016-12-23_GENERAL DOCUMENTS - C1980007
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2016-12-23_GENERAL DOCUMENTS - C1980007
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Last modified
5/26/2020 2:47:54 PM
Creation date
1/4/2017 7:22:43 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
General Documents
Doc Date
12/23/2016
Doc Name
Proposed Decision & Findings (SL-10)
From
DRMS
To
Mountain Coal Company, LLC
Permit Index Doc Type
Findings
Email Name
LDS
JRS
Media Type
D
Archive
No
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West Elk Mine <br />Partial Phase I Bond Release SL-10 Findings Page 6 of 8 <br />equipment, or de-gas housing will be removed from the site. <br />2. When the mud pit or pits are sufficiently dry, they will be filled with stored soil material and <br />compacted to minimize any settling. <br />3. A backhoe and a bulldozer will redistribute material on and around the drill pad to achieve as <br />closely as practicable the original contour of the site. The area will then be ripped or scarified. <br /> <br />The reclamation plan calls for MVB access roads to be restored as closely as possible to the approximate <br />original contour, with an uneven final surface. <br /> <br />Approximate original contour for the drill pads and roads was verified during the inspection by visual <br />observation. All of the material that had been stockpiled on each site during the construction phase, had <br />been used during the reclamation phase to achieve approximate original contour (or used in the pad or <br />road cut and fill). <br /> <br />Additionally, wellbore locations on the ground surface were inspected for compliance with Rule 4.07.3, <br />which requires that well bore closures be designed to prevent access to the mine workings and to keep <br />acid or other toxic drainage from entering ground or surface waters. Rule 4.07.3 also requires all holes to <br />be marked. MCC provided well abandonment reports in the SL-10 application for all of the plugged and <br />sealed boreholes in accordance with Rule 4.07.3(3), which show that proper plugging and abandonment <br />took place in 2015. <br /> <br />No debris, trash, drilling related equipment or de-gas housings were found in the bond release areas. No <br />mud pits were found. Borehole location markers were found at all of the locations. <br /> <br />All backfill material appeared to have been properly regraded on disturbed areas in the bond release area, <br />resulting in the disturbed lands blending well with the natural contour of adjacent, undisturbed lands. Cut <br />slopes had also been regraded to blend with adjacent undisturbed lands. Access roads had uneven <br />surfaces, as specified in the reclamation plan. Regraded areas appeared structurally stable, with the <br />exception of a small slump on the 09LWE4X37 pad; it was determined, based on observations of the local <br />topography and of similar features in the surrounding undisturbed area, that this slump was unrelated to <br />MCC’s disturbance but was likely the result of a naturally occurring groundwater seep. No tension cracks, <br />head scarps, or compression bulges were found. <br /> <br />All areas appeared to have positive drainage, with no low spots in the regraded areas that would allow <br />runoff to pond. There were no signs of excessive erosion (e.g., rills, gullies, or sediment fans). The <br />operator made ample use of downed trees and other slash in the bond release area for erosion control <br />(and for preventing motor vehicle access) by placing the downed trees and slash across reclaimed pads <br />and roads. Backfilling and grading on most of the disturbed sites has created gentle slopes having slope <br />lengths less than approximately 300 feet long, indicating that surface flow is likely to drain across the <br />disturbed area chiefly as sheet-flow, rather than more erosive concentrated-flow. No berms or other <br />obstructions were left on the downslope edges of disturbed areas that would impede flow off of the <br />disturbed lands. While not a Phase I standard, all of the topsoil had been replaced on the drill pads and <br />roads and vegetative growth was apparent on all of the reclaimed drill pads and roads. This vegetation <br />will help to further stabilize the reclaimed areas and control erosion. <br /> <br />
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