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be open. the history of the wells has been lost due to a <br />succession of operators. However, the No. 3 Mine has been plugged, <br />and the holes should present no threat to people, livestock, or <br />wildlife in the area. <br />B. Holes or openings, which are temporarily plugged, will be protected <br />by barricades. A locked wooden door blocks access to the Mine <br />No. 1 portal seal. The Division proposes to approve use of this <br />method (4.07.2). <br />C. The Division will require that each hole, well, or other <br />underground opening be capped, sealed, backfilled, or otherwise <br />properly managed (4.07.3). <br />IV. Coal Mine Waste Banks <br />A. The Division approved plans for use, construction, and maintenance <br />of a coal mine waste disposal area (4.10.1(1)). <br />B. The applicant has submitted a plan for disposal, at the approved <br />disposal area within the permit boundary, of mine waste materials <br />generated by activities outside the permit boundary. These <br />materials include waste piles from abandoned pre-law mines. The <br />applicant has demonstrated that disposal of such materials will not <br />adversely affect water quality or flow, vegetation, public health, <br />or stability of the disposal area based on hydrologic, geo- <br />technical, physical, and chemical analyses. Therefore, the <br />Division approved of disposal of these materials (4.10.1(2)). <br />C. The disposal area will be inspected on a regular basis by a <br />qualified professional specialist under the direction of the <br />professional engineer, experienced in construction of similar earth <br />and waste structures. Inspection by this person has been approved <br />by the Division as appropriate (4.10.2(1)). <br />D. An alternative subdrainage system for the coal mine waste area has <br />been proposed. The Division finds that such an alternative will <br />ensure the applicable static safety factor, stability of the fill, <br />and protettion of the surface and ground water (4.10.3(5)). <br />A naturally occurring subdrainage system at the coal mine waste <br />area is described in a report by Chen & Associates, which is <br />presented in Appendix 4-C of the permit application. The design of <br />the refuse pile provides a long-term static safety factor of 1.8 <br />and a seismic safety factor of 1.5. These factors are based on <br />geotechnical testing and engineering analysis as detailed in the <br />Chen report. <br />E. The applicant has submitted a demonstration that shows that <br />revegetation requirements of 4.15 can be met with less than four <br />feet of Cover on the Coal processing waste bank (4.10.4(5)). A <br />12-inch cover has been deemed sufficient for revegetation <br />requirements at this site. <br />_2Q_ <br />