My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2014-11-17_PERMIT FILE - C1982056A (3)
DRMS
>
Day Forward
>
Permit File
>
Coal
>
C1982056A
>
2014-11-17_PERMIT FILE - C1982056A (3)
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 5:55:26 PM
Creation date
12/4/2014 10:11:16 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056A
IBM Index Class Name
Permit File
Doc Date
11/17/2014
Doc Name
Pages 2.05-65 to 2.05-197.3 part 2
Section_Exhibit Name
2.05 Operation and Reclamation Plans Part 2
Media Type
D
Archive
Yes
Jump to thumbnail
< previous set
next set >
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
224
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
will also be broken up and disposed of into the shaft opening. A cement plug will be placed in the bottom 15 feet of the <br />shaft and the remainder of the shaft will be filled with jnert material including the shaft cuttings and collar excavation <br />.materials. A cement plug will be poured from 10 feet below grade to within approximately 3 feet of the surface. The <br />remaining 3 feet will be filled with soil, and graded to blend with the surrounding terrain. As noted in the discussion <br />of construction for the 18 -Left Ventilation Shafts, any required pressure —grout boreholes will be sealed at the time <br />of construction. Cement grout will be pumped through the boreholes to seal any wet zones encountered and the <br />boreholes will be filled with grout and allowed to set -up on completion of grouting operations. Any surface casing <br />extending above ground surface would be cut -off flush with or below natural ground level. The MAC borehole and <br />Utility Borehole will be plugged and sealed using the same methods as previously described for the shaft seal. The <br />pipeline will be reclaimed by cutting the ends of the pipeline off below the ground surface, capping the ends, and <br />leaving the pipeline buried in- place. <br />Following removal of structures and equipment, and plugging and sealing of the shaft and borehole(s); any cuttings <br />remaining in the temporary mine waste disposal pit will be covered with excavated shaft collar material; road culverts <br />will be removed and disposed of off -site; road -base and surfacing materials will be removed and placed on the shaft <br />pad; and the shaft pad, substation area, sedimentation pond, and light -use road disturbance areas will be regraded to <br />reestablish effective drainage and blend with the surrounding terrain. Cover over any cuttings remaining in the cuttings <br />pit will be a minimum of 2 feet of suitable material, and the postmining configuration will approximate the premining <br />contours. As -built certification will be provided to the CDMG following final closure, backfilling, and grading of <br />the cuttings pit. Any excess road -base and surfacing materials not required to reestablish approximate original contour <br />will be hauled off -site and disposed of. Stockpiled topsoil will then be replaced on those disturbed areas where it was <br />previously removed and seeded with a pastureland seed mixture. <br />Fish Creek Ventilation Shaft and Dewatering and Water Treatment Installation (MR07 -216) <br />The Fish Creek Ventilation installation had a useful life of approximately seven years, until the first set of longwall <br />•panels were mined -out. The fan building, duct -work, and fan have been removed from the site. The borehole was <br />temporarily sealed, as described in the response to Rule 2.05.4(2)(g), and was used only for discharge from the <br />excess flow diversion line from the Fish Creek water treatment system. In 2007, the shaft installation was modified <br />for use as a dewatering well to replace the inoperable Fish Creek South Dewatering Borehole. <br />Upon completion of mining, and when the system is no longer required, all facilities will be removed and the site <br />reclaimed. Removal of the surface facilities will involve removal of the modular electro- coagulation units (2); <br />dismantling of surface structures, which includes the powerline, transformer and pad, any remaining chemical and <br />pump control equipment, buildings and pads; fencing,; stubbing -off and capping buried piping; and demoilition of <br />building foundations. The concrete demolition debris will either be hauled to the refuse site for disposal or hauled to <br />a landfill. <br />Final reclamation of the dewatering wells and ventilation shaft will involve excavating down 4 feet from grade <br />around the casing, cutting off the steel casing 3 feet below grade, hanging steel decking from the top of the cut -off <br />casing (this decking will be 30 feet below the top of the cut -off casing), placement of 30 feet of concrete in the <br />casing (for a 3 -foot diameter cased hole, the 30 foot x 3 foot diameter cement plug would weigh approximately <br />32,000 pounds, which would be more than adequate to resist the calculated hydrostatic pressure and provide an <br />effective seal). The remaining 3 feet will be filled with soil, and graded to blend with the surrounding terrain. . The <br />access road will be graded to blend with the surrounding terrain, and the culvert will be removed. The entire area <br />will be topsoiled and seeded with the appropriate seed mixture. <br />After the facilities are removed, the site will be regraded to blend with the existing terrain and the stockpiled topsoil <br />redistributed over the area. The soil material stored adjacent to the site will be redistributed over the dewatering site <br />and reclaimed road segments will be seeded with the pastureland seed mixture. Approved permanent access roads will <br />•remain intact for use by the surface owner. During the 10 -year liability period, TCC will maintain the road for <br />monitoring purposes. After bond release, the land owner will assume responsibility for the road. The northern short <br />MR 10 -250 <br />2.05-106.1 <br />12/02/10 <br />
The URL can be used to link to this page
Your browser does not support the video tag.