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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 />BRL will reclaim the mine site to achieve approximate original contour. All highwalls <br />will be eliminated during reclamation. BRL has not requested any variances regarding <br />backfilling and grading, nor are any approved with this decision document. <br />XI. Revegetation <br />Information regarding baseline vegetation studies may be found in Section 2.04. 10 of the <br />permit. Information regarding revegetation of disturbed areas may be found in Section <br />2.05.4 of the permit. The goal of revegetation efforts at the Bowie No. 2 Mine is to <br />reestablish a post- mining land use of rangeland and wildlife habitat. Disturbed areas will <br />be seeded with one of two seed mixes, and straw mulch will be applied at a rate of 4000 <br />pounds per acre. <br />A. The Division approved the use of introduced species in the reclamation seed mix. <br />The applicant has submitted information which shows that the introduced species <br />are desirable and necessary to achieve the approved post- mining land use and are <br />not poisonous or noxious (4.15.2(3)). However, the lists of introduced species for <br />seed mix no. 2, meadow, and for seed mix no. 3, upland, were revised in Permit <br />Renewal No. 1. Introduced species in the meadow seed mix include Poa pratensis <br />(Kentucky bluegrass), Medicago sativa (Alfalfa), Medicago officianlis (Yellow <br />sweetclover), and Astragalus cicer (Cicer milkvetch). Introduced species in the <br />upland seed mix include Poa pratensis (Kentucky bluegrass), Medicago sativa <br />(Alfalfa), and Sanguisorbia minor (Small burnet). <br />B. The Division approved the use of straw mulch as a means to meet soil <br />stabilization requirements (4.15.4). <br />C. Methods to measure herbaceous cover and production, species diversity, and <br />woody plant density are discussed in 2.05.4(2)(c)(vi) of the Bowie No. 2 Mine <br />permit application document. The Division approved these techniques <br />(4.15.7(1)). <br />D. Comparisons between reclaimed and undisturbed areas, in order to demonstrate <br />that success criteria of 4.15.8 and 4.15.10 have been met, will be based on the <br />following: <br />Areas with pre - mining communities of Juniper Woodland and Mixed Shrubs will <br />be seeded with an upland seed mixture. The success of this revegetation effort <br />will be determined by comparing vegetative cover and herbaceous productivity to <br />reference areas in those two communities. Species diversity will be considered <br />adequate if at least four perennial species are present and each accounts for at <br />27 <br />