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PERMFILE110240
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PERMFILE110240
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Last modified
8/24/2016 10:07:07 PM
Creation date
11/24/2007 7:37:59 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007A
IBM Index Class Name
Permit File
Doc Date
7/10/2003
Section_Exhibit Name
Exhibit 69 Section A I. Initial Project Description
Media Type
D
Archive
Yes
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Mountain Coal Company Exhibit 69 <br />West Elk Mine Sylvester Gulch Facilities <br />road leaves the electric borehole road), and a 65-foot wide by 145-foot long drill pad. <br />The shaft will be a 10-foot finished diameter ventilation shafr, and will be approximately <br />580 feet deep. It will be completed to the B-Seam workings, with access provided to the <br />E-Seam as well. The shaft will be raise drilled (all excavated material will remain in the <br />mine) and completed with a water ring, downcomer connection, and concrete liner such <br />that surface water and groundwater cannot enter the mine workings. The completion of <br />Shaft #3 will be identical to the completion of Shafts #I and #2. The shaft will have a <br />concrete collar approximately 3 feet wide by 2 feet deep and will be covered with a 12 <br />feet by 12 feet by 6 feet high screened metal enclosure to prevent birds and other fauna <br />from entering the shaft. <br />Temporary facilities to be used during the construction of the shaft will most likely <br />include a hoist, winch, and trailer-mounted facilities. The hoist and winch will be placed <br />on concrete foundations. The dimensions of the foundations are shown on Table 3. <br />These facilities will be removed upon the completion of the shaft. Permanent facilities at <br />Shaft #3 will include an emergency escapeway capsule or "bullet hoist." Dimensions for <br />this structure and concrete foundations are included on Table 3. <br />The total disturbed area associated with the Shaft #3 site (including the road to the site) is <br />approximately 3.1 acres. Approximately 10,000 CY of topsoil will be salvaged; 4,500 <br />CY will be stockpiled at the topsoil pile at the Shaft #3 site, and 5,500 CY will be <br />stockpiled in topsoil stockpile #1 or i^ the Shaft #1 and #2 site pile. Approximately <br />151,000 CY of subsoil will be cut to construct the Shaft #3 pad and 6,300 CY will be <br />used as fill for the road and pad. The remaining material, 141,000 CY, will be used for <br />the construction of the benches for Shafts # 1 and #2. <br />The light-use roads to the Shafr #3, degasification, and electric borehole sites will include <br />approximately 1,900 feet of guardrail. The road and the shaft pad will be surfaced with <br />road base material to provide stable driving and working surfaces. <br />The electric borehole pad area will be approximately 100 feet by 100 feet to <br />accommodate a truck turn-around, a small switch house, and the borehole cable support <br />structure. See also Electric Borehole Road in this discussion for information on the <br />electric borehole road. The finished electric borehole will be 11 inches in diameter and <br />will be approximately 635 feet deep. The hole will be fully cement grouted and cased to <br />the B-Seam to keep surface water and ground water from entering the hole. <br />The pad area for the degasification hole will be approximately 50 feet long by 150 feet <br />wide. The road to the degas hole (measured from the Shaft #3 road) is approximately 325 <br />feet long and 14 feet wide. The finished hole will be 11 inches in diameter and will be <br />approximately 670 feet deep. The hole will be fully grouted and cased to the B-Seam to <br />prevent surface water and ground water from entering the hole. <br />5 Nov. /99h PR07R; Revised Mav 1997 MR216 <br />Revised Jul. 1997 MR219; Revised June 2003 MR297 <br />
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