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B. The applicant has not submitted a plan for disposal, at the approved disposal area within <br /> the permit boundary, of mine waste materials generated by activities outside the permit <br /> boundary(4.10.1(2)). <br /> C. The disposal area will be inspected on a regular basis by a qualified professional <br /> engineer,experienced in construction of similar earth and waste structures(4.10.2(1)). <br /> D. An alternative subdrainage system for the coal mine waste area has not been proposed. <br /> The Division finds that the approved subdrainage system should ensure the applicable <br /> static safety factor, stability of the fill,and protection of the surface and ground waters <br /> (4.10.3(5)). <br /> E. The Division is not proposing to approve a variation in the requirements for maximum <br /> allowable lift thickness and minimum required compaction (4.10.4(3)(a)). <br /> IX. Coal Mine Waste <br /> A. Non-coal waste will be stored at designated locations at the mine site,then transported to <br /> the Delta County landfill for proper disposal. <br /> X. Backfilling and Grading <br /> A. BRL will reclaim the majority of the mine site to achieve approximate original contour. <br /> All highwalls will be eliminated during reclamation. BRL has requested a variance <br /> regarding backfilling and grading: Waste Pile No. 3 will not be reclaimed to original <br /> contour. The Division approved this variance. <br /> XI. Revegetation <br /> Information regarding baseline vegetation studies may be found in Section 2.04.10 of the permit. <br /> Information regarding revegetation of disturbed areas may be found in Section 2.05.4 of the <br /> permit. The goal of revegetation efforts at the Bowie No. 2 Mine is to reestablish a post-mining <br /> land use of rangeland and wildlife habitat. Disturbed areas will be seeded with one of two seed <br /> mixes, and straw mulch will be applied at a rate of 4,000 pounds per acre. <br /> A. The Division approved the use of introduced species in the reclamation seed mix. The <br /> applicant has submitted information which shows that the introduced species are <br /> desirable and necessary to achieve the approved post-mining land use and are not <br /> poisonous or noxious(4.15.2(3)). However,the lists of introduced species for seed mix <br /> no. 2,meadow, and for seed mix no. 3,upland,were revised in Permit Renewal No. 1. <br /> Introduced species in the meadow seed mix include Poa pratensis(Kentucky bluegrass), <br /> Medicago sativa(Alfalfa),Medicago officianlis(Yellow sweetclover), and Astragalus <br /> cicer(Cicer milkvetch). Introduced species in the upland seed mix include Poa pratensis <br /> (Kentucky bluegrass),Medicago sativa(Alfalfa),and Sanguisorbia minor(Small Burnet). <br /> B. The Division approved the use of straw mulch as a means to meet soil stabilization <br /> requirements(4.15.4). <br /> 22 <br />