2019-05-03_REVISION - C1981028 - Laserfiche WebLink

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Keenesburg Strip Mine (C-1981-028) MT-07 Page 4 postmining land use of the permit area is also rangeland. The land cannot support a variety of uses under existing technologies and local resources. All attempts at dryland farming on the area have been abandoned. The premining soil capability class is VIe for irrigated and non-irrigated Valent soils. Osgood soils have capability classes of IVe for irrigated crops and VIe for non-irrigated conditions. Description of the Operation and Reclamation Plan Mining activities and ash disposal activities have been terminated at the site. Much of the site reclamation has been performed, and the primary remaining tasks entail the spreading of topsoil (referred to as topsand in CEC’s permit) and seeding. Topsoil Stripping and Replacement Depths No further stripping of topsoil or topsand is anticipated at the site. Only reclamation activities are anticipated. Replacement depths of topsand are:  Two feet over overburden spoil cover (on ash disposal areas)  Two feet over roads  Fifteen inches over the long-term spoil area  Six inches over facilities and topsand storage areas. Revegetation Techniques The approved revegetation plan emphasizes native species planting resulting in a diverse, permanent, effective plant community capable of self-regeneration. The current seed mix is included in Section 2.05.4 of the PAP. Manure or organic mulch is to be spread on the topsand. The approved seed mix will be drill seeded through the organic mulch. Small areas that require reseeding may be broadcast. Two seeding windows exist: 1. March 15 to June 1 (spring) and 2. September 15 to December 15 (fall). A stubble mulch (e.g., sorghum) may be applied in the spring or fall prior to seeding of the permanent seed mix. Hay/straw mulch, hydromulch and tackifier, soil amendments, and compost products may also be used. No irrigation is proposed. The site is currently inspected at least quarterly for pests and diseases. No infestations of pests or noxious weed species have been identified. Grazing is prohibited during the first two years of vegetation establishment on reclaimed areas. Grazing may be allowed thereafter. Grazing will not be allowed to interfere with vegetation sampling for monitoring or bond release purposes, and eligible areas will not be grazed during the growing season prior to sampling.