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2017-11-01_PERMIT FILE - C1981035A (14)
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2017-11-01_PERMIT FILE - C1981035A (14)
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Last modified
10/8/2019 7:16:00 AM
Creation date
12/8/2017 8:28:32 AM
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DRMS Permit Index
Permit No
C1981035A
IBM Index Class Name
PERMIT FILE
Doc Date
11/1/2017
Section_Exhibit Name
KI 2.05.6 Mitigation of the Impacts of Mining Operations
Media Type
D
Archive
Yes
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custom built liner. This would require the services of a local contractor with a track <br />hoe or other heavy equipment. Interim water would need to be provided using a <br />temporary tank. Water would be hauled by truck to the site. The power line and <br />telephone line to John's house would not be affected by this permit application <br />In the event that subsidence cracks damage any barbed wire fence within the <br />permit area (a fencepost could be dislodged or strands of barbed wire could stretch <br />and break or sag), GCC Energy, LLC would be happy to fix said fences without <br />charge to the landowner or will reimburse the landowner for any repairs necessary. <br />Damage to the two -track dirt roads could occur if a subsidence crack were to <br />intercept the road. Any cracks of this nature could be easily filled with loose dirt or <br />gravel at GCC Energy's expense; however, due to the present condition of the road, <br />cracks of this nature would be virtually unnoticeable. <br />The buildings and structures on and around the surface facility area of the <br />mine will not be damaged by subsidence because there are no minable coal seams <br />beneath this area. <br />SUBSIDENCE MONITORING PROGRAM <br />The Huntington Irrigation Ditch, Pond and Pipeline, and the adjacent surface <br />area have been inspected on a quarterly basis since 1981 by a qualified person for <br />evidence of subsidence caused by underground mining. The Huntington Pond, as <br />expanded in 2016, will be added to that list. Results of these inspections are <br />reported to the Colorado Division of Reclamation, Mining 8s Safety. Quarterly visual <br />inspections of the Huntington Ditch to date have not indicated evidence of damage, <br />nor have they indicated that water is lost to the mine via surface fracturing. <br />Quarterly inspections of the Crawford Irrigation Ditch commenced once mining and <br />pillaring operations had been conducted in that area. <br />Field observations indicate that surface subsidence features are present above <br />abandoned portions of the mine. These features are in the form of cracks which are <br />typically 4" to 6" wide and may be several hundred feet long. These cracks tend to <br />parallel pillared out mining sections. GCC Energy, LLC will continue to monitor <br />these cracks on a quarterly basis. Should visual inspection determine that a <br />subsidence crack is approaching a possible intercept with the ditch, the location of <br />the crack and its relation to the ditch will be mapped and monitored closely. Survey <br />monitoring stations are for mapping purposes only. Should it appear eminent that <br />the ditch and a subsidence crack will intersect; the effected portion of the ditch will <br />be lined with flexible plastic conduit or other means equally effective to ensure the <br />continuous and unrestricted flow of water. <br />At least one month prior to retreat mining near the Marc Crawford house, <br />subsidence monitoring monuments were placed and surveyed near the house by a <br />registered surveyor in such a way that subsidence can be detected from a survey <br />monument outside the affected area of mining, should it occur. These monuments <br />were surveyed quarterly for two quarters following the time that pillars were <br />extracted from the area. These monuments were then be monitored annually for two <br />years to assure that no subsidence had occurred. The monuments remains in place <br />in the event that future questions arise concerning subsidence. Location of these <br />monuments and the structures they are to monitor are shown on Map King I-013. <br />In the event that any of the aforementioned ponds, ditches, pipelines or <br />utilities were damaged between regular GCC Energy inspections, the landowner will <br />probably become aware immediately. They will, in turn, notify GCC Energy <br />immediately. <br />GCC Energy, LLC King I Mine <br />Section 2.05.6 <br />Page 4 July 11, 2017 (RN -07) <br />
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