2014-10-10_REVISION - C1996083 (4)

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using waste (4.11.5(1)(b)). X. Backfilling and Grading BRL will reclaim the mine site to achieve approximate original contour. All highwalls will be eliminated during reclamation. BRL has not requested any variances regarding backfilling and grading, nor are any approved with this decision document. A. The applicant has not requested additional time for backfilling and grading (4.14.1(1)) B. In the case of underground mining operations, the applicant has demonstrated that the fill used to eliminate the highwall and depressions meets all the requirements of 4.05, 4.06, 4.09 and 4.15, and has not requested a variance from returning available materials to approximate original contour (4.14.1(2)(e)). C. The Division is not proposing to approve a modification of the general requirements of 4.14.2 for reclamation to approximate original contour 4.14.1(2)(e), (4.14.1(2)(f), and (4.14.1(2)(g)). D. The Division is not proposing to approve cut -and -fill terraces (4.142(2)). E. Small depressions in the backfill will be used to minimize erosion, create or enhance wildlife habitat, conserve soil moisture, and promote revegetation. The Division proposes to approve their construction (4.14.2(3)). F. The Division proposes to approve the applicant's plan for disposal of debris, acid - forming or toxic materials, or materials constituting a fire hazard in a manner designed to prevent contamination of ground or surface waters. BRL does not anticipate the occurrence of any acid - forming or toxic materials or materials constituting a fire hazard (4.14.3(1)(a) and (4.14.3(2)). XI. Revegetation Information regarding baseline vegetation studies may be found in Section 2.04.10 of the permit. Information regarding revegetation of disturbed areas may be found in Section 2.05.4 of the permit. The goal of revegetation efforts at the Bowie No. 2 Mine is to reestablish a post- mining land use of rangeland and wildlife habitat. Disturbed areas will be seeded with one of two seed mixes, and straw mulch will be applied at a rate of 4000 pounds per acre. A. The Division proposes to approve 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. However, the lists of introduced species for Seed Mix No. 2 (meadow), and for Seed Mix No. 3 (upland) were revised in Permit Renewal No. 1. Introduced species in the meadow seed mix include Poa pratensis (Kentucky bluegrass), Medicago sativa (Alfalfa), Medicago officialis (Yellow sweetclover), and Astragalus cicer (Cicer milkvetch). Introduced species in the upland seed mix Page 39 of 46