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PERMFILE64512
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PERMFILE64512
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Entry Properties
Last modified
8/24/2016 11:10:28 PM
Creation date
11/20/2007 8:26:21 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Permit File
Doc Date
7/24/2007
Section_Exhibit Name
Exhibit 77 Deer Creek Shaft Plan
Media Type
D
Archive
No
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<br />Mountain coal Company <br />West Elk Mine <br />Deer Creek Shaft Project Plan <br />estimated total disturbance of approximately 1.9 acres. (this estimate includes the subsoil <br />pile generated from excavation of the Deer Creek shaft collars from the pad elevation to <br />bedrock). This volume was detemined following the 2006 and verified by proposed <br />2007 site investigation work which will identify depth to bedrock.) Since the expected <br />disturbance area is sma1L MCC considers this as a Small Area Exemption (SAE) for <br />sediment conhol purposes. <br />The pad light-use road was designed in accordance with the CDMG light use road <br />criteria (CDMG Rule 4.03.3) and was constructed in a way that did not require crossing <br />watercourses or cause impacts to wetlands. Mountain Coal Company intends to <br />minimize the footprint of the project disturbance and has been successfirl in doing so at <br />similaz projects. <br />Access to the shaft pad will be required all year long, but in some months may be <br />achieved via snowcat, snowmobiles, All Terrain Vehicles (ATVs), or other similar <br />means. Minnesota Creek Road (USFS 711) will be used to provide equipment and <br />vehicle access during construction Improvements to this road will benefit this project <br />during the construction phase, but will also serve to improve the road for other Forest <br />users. If needed, improvements to this road will be peffiitted duough the existing <br />Annual Operating Plan procedure currently associated with MCC's USFS Road Use <br />Pemrit. <br />Both the light-use road and the pad driving surfaces aze graveled. The perimeter of the <br />pad and the slopes of the light-use road corridor were seeded for interim reclamation <br />Purposes. <br />The volume of subsoil generated for the main shaft collar installation has been estimated <br />to be approximately 3,000 cubic yards from the 2006 site characterization work that <br />defined depth to bedrock (for both shafts). Subsoil will be excavated from the surface <br />elevation remaining after topsoil removal to bedrock depth for the main shaft collar <br />excavation. Mountain Coal Company will minimize the footprint of the subsoil pile so as <br />to Limit the disturbed area. This stored subsoil will be used to facilitate shaft closure and <br />final re-grading of the road and pad to approximate original contours. <br />The vegetation that occurs in the area between the sha8 and the public access roads <br />(Minnesota Creek Road USFS 711 and the Deer Creek Road) roads consists of several <br />aspen trees; dense Gambel oak, chokecherry, snowberry and serviceberry shrubs; <br />Mountain brome and other grasses; and various other fort and shrub species. The pad is <br />located on a gently sloping hillside with a slight north-facing aspect The existing <br />vegetation offers some natural visual screening from the public access road. <br />The pad will contain an approximate 24fcet diameter shaft enclosed with a concrete <br />collar (the Deer Creek Shaft). An adjacent shaft of approximate 6-feet diameter (also <br />enclosed with a concrete collar) will be used for MSHA-required emergency mine <br />Page 3 of 13 <br />
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