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2014-10-31_PERMIT FILE - C1981044A
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2014-10-31_PERMIT FILE - C1981044A
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Last modified
2/9/2017 9:19:47 AM
Creation date
11/26/2014 8:42:21 AM
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Template:
DRMS Permit Index
Permit No
C1981044A
IBM Index Class Name
Permit File
Doc Date
10/31/2014
Section_Exhibit Name
2.05 Operation and Reclamation Plans
Media Type
D
Archive
Yes
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old Highway 13, which provides access to the No. 5A portals; and a portion of road at Williams Fork Strip Pit. If <br />there is interest from the County, Old Highway 13 may be returned to Moffat County. The roads to remain after <br />mining are shown on Map 29. Dependent on economic conditions and potential opportunities, MCM may consider <br />alternative postmining land uses for certain portions of the Permit Area, as appropriate. As part of this consideration, <br />MCM will also evaluate the value and utility of certain facilities, including but not limited to the railroad spur, <br />Shop/Warehouse Building, Multi - Services Building, water and wastewater treatment systems, and electrical <br />substations and associated distribution lines for permanent retention to support the alternative postmining use(s). <br />MCM acknowledges that any change in postmining land use and approval for permanent retention of facilities will <br />require submittal and approval of a revision to the existing approved Permit. <br />Sealing of Underground Openings and Covering of Coal Seams <br />The next step in the reclamation plan is the sealing of all mine entrances and covering of all coal seams exposed <br />during the mining operations. All mine openings will be sealed in accordance with approved MSHA plans and <br />regulations. This will involve backfilling and sealing, through the use of approved seals, to close all portals and <br />entrances to the underground areas. A typical seal plan is presented on Figure 57, Typical Portal Seal Plan. All <br />exposed coal seams will be covered with a minimum of four feet of inert material. To date, MCM has sealed and <br />covered the exposed coal seams for the No. 5 (1997) and No. 9 Mine Portals (1987/2008- 2009). <br />Sealing of Monitoring Wells <br />When monitoring wells are no longer required, they will be sealed in accordance with Section 4.07. Any <br />monitoring well that is to be mined - through will be sealed in accordance with Section 4.07 prior to <br />mining through the well. <br />Backfillina and Grading. <br />The next step in the reclamation plan involves backfilling and grading of the portal areas as well as other facility areas <br />to establish a stable configuration, reestablish effective drainage, and blend with the surrounding terrain. Areas <br />requiring backfill are included on Table 63, Overburden Redistribution. The volumes included in this Table were <br />developed by comparing the existing topography with the topography to be achieved through reclamation. Disturbed <br />areas will be rough graded to the approximate contours shown on the Reclamation Plan Map (Map 29). Post - <br />disturbance cross - sections for the various disturbed areas are presented in Exhibit 20, Post - Disturbance Cross - <br />Sections. To date, MCM has backfilled and graded the following mine disturbance areas; No. 9 Mine Portal area and <br />Refuse Disposal Area — 1987/2008 -2009; No. 5 Mine Portal area — 1997 -1998; Old Mine Office, <br />Women'sNisitor's/Men's Bathhouse, Lab Trailer and Sample Shed, Brazell -Simms Building, No. 9 Mine <br />Warehouse, and Reclamation Storage Building, - 2008 -2009. <br />Redistribution of Soil Materials <br />The next step in the reclamation plan will be the redistribution of soil or plant growth media. In any areas where there <br />is evidence (soil staining) or reasonable potential for petroleum contamination (shop, equipment parking, and <br />petroleum storage), soil samples will be collected and tested for the presence of petroleum residues. If petroleum <br />residues are detected for a sample(s), excavation and testing of soils in the corresponding area will occur, and any <br />petroleum contaminated soils will be removed and hauled off -site for land- farming or disposal by a qualified <br />contractor. The soil materials or best available plant growth media, will be redistributed by scrapers or small end - <br />dump trucks and spread with dozers or graders. The rough -graded backfill surface will reduce the potential for <br />slippage and promote rooting and moisture infiltration, and equipment operations will be conducted to minimize or <br />mitigate compaction. <br />Many of the disturbed areas associated with the Williams Fork operations were previously disturbed by past mining <br />and related activities. These operations occurred prior to implementation of current reclamation regulations. As such, <br />no topsoil was salvaged from many of these areas. MCM's predecessor companies, in cooperation with the CMLRD <br />completed sampling programs for some of these areas to identify the best available plant growth media. Results of the <br />TR14 -36 2.05 -24 03/10/14 <br />
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