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GENERAL42468
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Last modified
8/24/2016 8:11:03 PM
Creation date
11/23/2007 11:47:53 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
General Documents
Doc Date
8/26/1985
Doc Name
Proposed Decision & Findings of Compliance for PR1
From
Addition of 1,630 Acres
Permit Index Doc Type
FINDINGS
Media Type
D
Archive
No
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-7- <br />INTRODUCTION <br />West Elk Coal Company operates the Mt. Gunnison No. 1 underground coal mine, <br />which is located approximately 1 mile east of Somerset on Colorado State <br />Highway No. 133. The, mine portal facilities are located on the South side of <br />the North Fork of the Gunnison River at an elevation of 6,450 feet. The <br />eastern and western extremities of the Mt. Gunnison No. 1 Mine permit area are <br />bounded closely by Sylvester Gulch and Gribble Gulch, respectively, and the <br />northern extremity of the permit area is bounded by the North Fork of the <br />Gunnison River. the southern boundary of the permit area ranges from <br />approximately one mile to a quarter mile north of the Dry Fork of Minnesota <br />Creek. The general area in which the mine is located is characterized by a <br />semi-arid environment of steeply sloping mountains covered primarily with tall <br />shrub vegetation, particularly oakbrush and serviceberry. The area is <br />currently used for grazing by domestic livestock (cattle and sheep) and <br />wildlife (deer and elk). Recreational activities such as big game hunting <br />also occur here. The Mt. Gunnison No. 1 Mine permit area is drained by the <br />North Fork of the Gunnison River, which is part of the Colorado River drainage <br />basin. Slopes range from 0 to 60 percent on the permit area, and elevations <br />range from about 5,900 feet at Somerset to approximately 8,000 feet at the <br />southern extremity of the permit area. , <br />The general direction of mining is southward to extract coal from the F-seam. <br />The coal moves via conveyor belts from portal to breaker to silo, then across <br />the river to a railroad loadout station where it is loaded onto trains for <br />shipment to market. The ultimate size for the Mt. Gunnison No 1 Mine is <br />approximately 2.8 million tons per year, and it is estimated by the operator <br />that the production buildup to this level is expected to cover a period of ten <br />years, contingent upon coal sales. Room and pillar mining methods are planned <br />for use in the Mt. Gunnison No. 1 Mine. <br />Permanent reclamation of the mine surface facilities site and other disturbed <br />areas will occur incrementally during the operation as suitable areas become <br />available, such as the initial and upper waste rock piles. The estimated <br />duration of the entire life of the mine operation is approximately 40 years. <br />During reclamation, the mine portals will be sealed, surface facilities <br />removed, and the entire disturbed area will be returned to approximate <br />original contour, with the exception of the waste rock piles. The mine area <br />will then be smooth graded, and compacted areas will be ripped or scarified to <br />eliminate slippage surfaces, establishing a suitable bond for the overlying <br />seedbed material. Topsoil, which has been salvaged during construction of the <br />surface facilities, will be redistributed over the disturbed area. Drainage <br />control will be retained until the revegetation operation is underway. <br />Following the distribution of topsoil and final grading, the newly shaped <br />surface will be prepared for planting. Surface preparation will loosen and <br />roughen the surface by disking, harrowing, or dragging. Various conditioners <br />and neutralizers may be used to modify the seedbed conditions to ensure <br />successful establishment of a vegetative cover. <br />
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