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The RDA is a large valley fill located north of Highway 12. The lower portion of it has <br />been reclaimed. <br />The Development Waste Disposal Area #2 is southeast of the main entrance. It has not <br />been reclaimed. <br />The Development Waste Disposal Area #3 was approved for the West Mine area with <br />TR -65. No significant amount of development waste material has been placed in this <br />area. <br />All disposal areas will be inspected on a regular basis by a qualified professional under the <br />direction of the professional engineer experienced in construction of similar earth and waste <br />structures (4.10.2(1)). <br />IX. Coal Mine Waste <br />No specific approvals are granted for this section. <br />X. Backfilling and Grading <br />The Division has approved the applicant's plan for disposal of debris, acid-forming or toxic <br />materials, or materials constituting a fire hazard in a manner designed to prevent contamination <br />of ground or surface waters. A contingency plan has also been developed to prevent sustained <br />combustion of flammable materials. The applicant will cover the non -coal waste with a <br />minimum of two feet of soil (4.14.3(1)(a)). <br />Small depressions in the backfill will be used to minimize erosion, create or enhance wildlife <br />habitat, conserve soil moisture, and promote revegetation. The Division proposes to approve <br />their construction (4.14.2(3)). <br />XI. Revegetation <br />To demonstrate that the success criteria of 4.15.8, 4.15.9, and 4.15. 10 have been met, <br />comparisons between reclaimed and approved reference areas will be based on herbaceous <br />cover, production, species diversity, and woody plant density. The Division has approved the <br />basis for this comparison. The Division also approved the reference areas (TR -44), based on the <br />requirements of Rule 4.15.7(3). <br />The approved methods to measure herbaceous cover and production, species diversity, and <br />woody plant density are discussed in Section 2.05 of the PAP (4.15.7(1)). <br />The Division approved the use of introduced species in the reclamation seed mix (e.g., smooth <br />brome). The applicant submitted information that shows that the introduced species are desirable <br />and necessary to achieve the approved post -mining land use, and they are not poisonous or <br />noxious (4.15.2(3)). <br />New Elk Mine <br />Findings for RN -06, May 11, 2017 <br />14 <br />