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Specifically, the airshaft at the No. 1 Mine portal will be backfilied, and a 36" culvert will be installed for access to a dewatering pipe. A locked cover will be placed over the open culvert end. This plan is illustrated on drawing D-2-5 of the permit application package. In addition, the status of three piezometers, PZ-1, P2-2, and P2-3, located inside the No. 3 Mine, is unknown. The piezometers are thought to be open. The history of the wells has been lost due Co a succession of operators. However, the No. 3 Mine has been plugged, and the holes should present no threat to people, livestock, or wildlife in the area. B. The Division will require that each hole, well, or other underground opening be capped, sealed, backfilled, or otherwise properly managed (4.07.3). IV. Coal Mine Waste Banks A. The Division approved plans for use, construction, and maintenance of a coal mine waste disposal area (4.10.1(1)). B. The applicant has submitted a plan for disposal, at the approved disposal area within the petmit boundary, of mine waste materials generated by activities outside the permit boundary. These materials include waste piles from abandoned pre-law 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 approved of disposal of these materials (4.10.1(2)). C. The disposal area will be inspected on a regular basis 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)). D. An alternative subdrainage system for the coal mine waste area has been proposed. The Division finds that such an alternative will ensure the applicable static safety factor, stability of the fill, and protection of the surface and ground water (4.10.3(5)). A naturally occurring subdrainage system at the coal mine waste area is described in a report by Chen & Associates, which is presented in Appendix 4-C of the permit application. The design of the refuse pile provides along-term static safety factor of 1.8 and a seismic safety factor of 1.5. These factors are based on geotechnical testing and engineering analysis as detailed in the Chen report. E. The applicant has submitted certifications, and the Division has field-verified, that there is four feet of cover on the coal processing waste bank (4.10.4(5)). zt