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2015-08-07_PERMIT FILE - C1981028A (2)
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2015-08-07_PERMIT FILE - C1981028A (2)
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Entry Properties
Last modified
1/27/2017 10:03:55 AM
Creation date
8/11/2015 10:58:34 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981028A
IBM Index Class Name
Permit File
Doc Date
8/7/2015
Doc Name
pg 102 to 129a
Section_Exhibit Name
2.05 Operation and Reclamation Plan
Media Type
D
Archive
Yes
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2.05.4 (2) RECLAMATION TIMETABLE <br />CEC is intent on the discontinuation of coal mining operations at the Keenesburg <br />Mine, and the continued progression of the site to serve instead as an ash and <br />mine waste rock (A/MWR) disposal facility. This transition is an integral part of <br />the reclamation process. The area previously referred to as A -Pit, and the access <br />roads (formerly haul roads) to A -Pit have been fully reclaimed. Other areas, <br />including the south end of B -Pit, are in various stages of reclamation. The <br />Evaporation Ponds which were located in the northwest corner of the Permit area, <br />and the Tipple facility formerly located in the northeast part of the Permit area <br />were removed and reclaimed by 1995. CEC has completed the reclamation of <br />virtually all areas not directly related to the ongoing A/MWR disposal/reclamation <br />operation in B -Pit. <br />At present annual A/MWR disposal rates, approximately two (2) acres (average) <br />per year are backfilled and graded in the pit disposal area. However, placement of <br />topsand on such small areas constricts normal heavy equipment movement. CEC <br />has determined that when an area of approximately 10 acres has been backfilled, it <br />is then ready for topsanding, fertilizing and final revegetation seeding. CEC has <br />demonstrated that this opportunity normally occurs only once or twice during each <br />5 -year permit renewal period. The largest acreage parcel to be reclaimed and <br />seeded will likely be linked to the last year of A/MWR disposal, currently <br />estimated to be 2021. The remaining stockpiled -soils and the facilities areas will <br />also be ready for final reclamation at about the same time. <br />CEC has been granted a variance on performing contemporaneous reclamation for <br />the B -Pit area until March 2021,This variance may need to be extended for <br />additional time periods, depending on the continued rates of A/MWR disposal and <br />the extent to which the "air space volumes" dictate further disposal activity to <br />achieve the final reclamation contour configuration for the site. <br />Based on agreement between CEC, CDMG, Weld County Department of Health <br />and Colorado Department of Public Health and Environment, memorialized in <br />Technical Revision 32, the East Perimeter Ditch, the West Perimeter Ditch and <br />Sediment Pond 2 have joined the previously approved Dugout Pond as <br />`permanently" retained surface features following mine closure. <br />CDMG is formally apprised of the status of reclamation activities at the <br />Keenesburg Mine through the Annual Hydrology and Reclamation Report (AHR <br />Report). This report is prepared and submitted by CEC by the end of February of <br />each year, unless otherwise agreed. The report addresses the previous calendar <br />year's reclamation, and includes (among other things); a vegetation monitoring <br />report, copies of ash sampling analyses, a disposal activities report, a mass <br />balance calculation and a summary of reclamation activities. <br />117 06/14 <br />
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