2008-09-05_PERMIT FILE - C1981012A ‎(2)‎

• Permit No: C1981012A
• IBM Index Class Name: Permit File
• Doc Date: 9/5/2008
• Section_Exhibit Name: Section 2.05 Operation and Reclamation Plan
• Media Type: D
• Archive: Yes

• and Roads - West Portal and Map 21, Non Coal Waste Disposal Area).
As per Division request, WFC has plugged and abandoned the cased
well in the area of the non-coal waste disposal site. In
addition, the east-west drainage on the north side of the dump will
be maintained rather than filled in as shown on Map 19, Sediment
and Surface Water Control Plan - West Portal. Maintaining this
drainage will allow flow on the north side of the dump into the
eastern most evaporation pond. Other waste material such as
machinery, scrap iron, equipment, which has some salvage value, is
placed in the scrap storage area shown on Map 12, Surface
Facilities and Roads - West Portal. The non-coal waste disposal
area will be routinely compacted and covered to prevent combustion
and airborne wastes. WFC will place a maximum of 2 feet of soil or
underground development waste over the dump. Basin understands the
area must be revegetated to meet the standards of Rule 9.15.8. In
addition, operation of the dump will meet state, federal and county
standards.
Petroleum products which are used in the normal mining
operation will be collected and recycled where possible. Where
recycling of the petroleum products is not possible, they will be
sold to local petroleum dealers as waste oil. Basin will also
dispose of all hazardous materials according to all state and
federal regulations.
• Refuse Disposal Area
The refuse disposal area was permitted and cdnstruction
began in 1989. Both the RDA and Development Waste Pile have been
undermined as shown on Map 3, Mine Plan and Map 22 Mine Progress.
No vertical or differential displacement was observed as a result
of subsidence. Old Allen Mine workings range from 320 to 900 feet
below the RDA. The area was partially undermined about 1963 by
room and pillar methods. Extraction percentages within the area
are estimated at less than SOo. It is believed that the limited
extraction has retarded subsidence and that the 35+ years that has
elapsed since mining is sufficient time for any adverse effects to
become evident. As a result, no adverse effects of underground
mining on stability of the waste piles are anticipated.
The refuse disposal area has a design capacity of
approximately 12.7 million cubic yards. This should be sufficient
capacity to continue operations for approximately 10 years
operation. The primary refuse belt termination is at an elevation
of approximately 7,550 feet, as shown on Map 24, Refuse Area. The
primary belt dumps into a 100 ft. radial stacker on the 7,550 foot
bench level. A maximum of 30,000 tons of refuse will be
temporarily stored in this 30 foot tall pile. The refuse will then
• be loaded by front end loader into dump trucks and transported to
the active refuse pile surface for final deposition. A dozer will
then spread, level, and compact the refuse in two foot lifts.
2.05-27 (Revised 12-18-98) ~N ~~~
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