GENERAL54180 - Laserfiche WebLink

Home Browse Search

V. Sealing of Drilled Holes and Underground Openings The Division will require that each hole, well or other underground opening be capped, sealed, backfilled, or otherwise properly managed (Map E8-3298) (4.07.3). VI. Coal Mine Waste Banks 1. The Division has approved plans for use, construction and maintenance of a coal mine waste disposal area (4.10.1 (1)). 2. The applicant has submitted a plan for disposal, at the approved disposal area within the permit boundary, of mine waste materials generated by activities outside the permit boundary. These materials include waste piles at other mines. The applicant has demonstrated that disposal of such materials will not adversely affect water quality or flow, vegetation, public health, or stability of the disposal area based on hydrologic, geotechnical, physical, and chemical analyses. Therefore, the Division has approved disposal of these materials (4.10.1(2)). 3. The disposal area will be inspected quarterly by a qualified professional specialist under the direction of the professional engineer, experienced in construction of similar earth and waste structures. Inspection by this person has been approved by the Division as appropriate (4.10.2(1)). 4. An alternative subdrainage system for the coal mine waste area has been approved. The Division finds that such an alternative will ensure the applicable static factor of safety, stability of the fill, and protection of the surface and ground water (4.10.3(5)). VII. Backfilling and Grading 1. The Division has approved a variance from meeting approximate original contour for reclaimed areas located at the lower Hubbard Creek area and at the Bear Creek facilities area (both areas are pre-law disturbance). The Division has approved a modification in the general grading requirements of 4.14.2 since sufficient spoil will not be available (4.14.2(1)). VIII. Revegetation 1. The Division has approved the use of introduced species in the reclamation seed mix. The applicant has submitted information which shows that the introduced species are desirable and necessary to achieve the approved post-mining land use, and are not poisonous or noxious (4.15.2). 2. The Division has approved the use of mulching with straw at the rate of 4,000 pounds per acre crimped in on slopes less than 3H:1V. On steeper slopes, hydromulch or straw held down with netting will be used as a means to meet soil stabilization requirements (4.15.4). -19-