2022-04-08_PERMIT FILE - C1981044 (4)

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MT8 2.05-31.2 Revised 02/28/22 Red Rock Crusher The crusher has been removed from the site and the only features remaining are the rock stockpiles. The rock from these stockpiles will be removed and the site reclaimed consistent with the following plans. The upper bench and access road leading into to the site will be ripped to a depth of 24 inches and disced to provide a suitable seed bed. The site will then be seeded with a cover crop, and subsequently with the rangeland/wildlife seed mixture. Prior to seeding, the soil will be analyzed to determine if any soil amendments are necessary. It is anticipated the seed mixture will be planted utilizing a rangeland drill. In the event the mixture is broadcast seeded, the seeding rate will be doubled. The entire length of the cut will be regraded to a slope of 3H:1V to blend the entire length of the cut into the natural topography. The regraded area will then be revegetated as discussed above. Any additional material that remains after regrading will be spread over the lower bench area. The lower bench area will be retopsoiled with plant growth media stockpiled from the No. 5A portal area. Prior to redistribution of the plant growth media, the lower bench will be ripped to a depth of 18 to 24 inches. After redistribution of the plant growth media, the material will be analyzed to determine if soil amendments are necessary. The area will then be re-seeded. The magazine site located adjacent to the red rock crusher was reclaimed. The site was reclaimed by removing the fence, magazines and cement pads. The stockpiled topsoil was redistributed over the site. After redistribution, the soil was analyzed to determine if soil amendments were necessary. The area was drill-seeded with the rangeland/wildlife seed mixture. Old Shop Area (Empire Village) The Old Shop was located at the now abandoned Empire Village. The Old Shop and associated bone-yards were established prior to any of the present-day mining laws and regulations. As such, no topsoil was available for redistribution over the site. In order to compensate for the topsoil deficiency, the overburden was analyzed to determine if soil amendments were necessary. The results of the analysis dictated what, if any, amendments will be added to the material to be used as a top dressing. The shop building was torn down and removed from the site. Any mining materials stored in the area were also removed from the site. The area was then be graded to blend with the surrounding terrain. Once grading of the site was completed, the area was covered with the best available plant growth media, as determined above. The site was then drill-seeded with the rangeland/wildlife seed mixture. The area was then straw mulched with the mulch applied at the rate of two tons/acre. Once bond is released for this area, the associated sediment ponds will be graded to blend in with the natural topography. Topsoil salvaged during the construction of the ponds will be used during the reclamation. The ponds will then be drill-seeded with a cover crop and then the rangeland/wildlife seed mixture. Utah Tract The Utah Tract is an area of reclaimed surface mine spoils overlying portions of MCM’s underground mining areas. The area was regraded, topsoiled, seeded, and mulched between 1979 and 1983 by Trapper Mining or its predecessor, Utah International. The postmining topography of the area is shown on the Vegetation Map (Map 20) and Structures and Renewable Resources Map (Map 25). When this area was acquired by MCM’s predecessor company, the acquisition included assumption of responsibility for completion of reclamation and revegetation success and bond release. The area was drill-seeded with the rangeland/wildlife seed mixture, with straw mulch applied and crimped at a rate of 2 tons per acre. Revegetation success sampling was completed in 2005, which indicated that vegetative reestablishment would generally meet the applicable revegetation success standards. MCM applied in 2020 for Phase I, II, & III bond release for this area, and was granted release in 2021.