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the main entrance. It is now reclaimed. <br /> • 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 92 is southeast of the main entrance. It has not <br /> been reclaimed. <br /> • The Development Waste Disposal Area 93 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 has approved their <br /> construction (4.14.2(3)). <br /> X1. 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 areas and the approved reference area will be based on <br /> herbaceous cover,production, species diversity, and woody plant density. The Division has <br /> approved the reference area and the basis for this comparison per the requirements of <br /> 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 /> New Elk Mine <br /> November 2019 Findings for RN-07 <br /> 15 <br />