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are characterized by a more mesic moisture regime and more <br />fertile soils. The remaining mountain shrub can be subdivided <br />into two distinguishable components; communities dominated by <br />chokecherry, and communities dominated by serviceberry. <br />serviceberry communities are found dominating steep south facing <br />slopes in the southern portion of the mine permit area. These <br />areas are characterized by a relatively xeric moisture regime and <br />poorly developed soils receiving large amounts of high intensity <br />solar radiation. Chokecherry communities are found on the gently <br />sloped hill tops in the area. These communities intergrade with <br />the aspen, sage, and oak communities. <br />Description of the Operation and Reclamation Plans <br />A more detailed description of the mining operations can be found <br />in the January 23, 1987 Proposed Decision and Findings of <br />Compliance for the Permit Renewal No. 1. All mining and <br />reclamation operations have ceased at the mine site. Mining <br />operations had begun in 1978 and ceased in 1986 when market <br />conditions prompted a shutdown. Five seams were mined using an <br />area strip mine method. On average, 500,000 tons of coal were <br />mined each year, from 1979 through 1986. Coal was hauled to the <br />Hayden Gulch loadout, which was eventually sold in June of 1993. <br />No coal processing took place. Only the .A horizon of topsoil was <br />salvaged due to the sufficient availability of the topsoil. <br />Sedimentation control during mining consisted of pond HG-8, on <br />the east side of the mine site, and three ponds, the shop area <br />pond, the explosives area pond, and the landfill area pond, on <br />the west side of the mine site. The explosives area pond and the <br />landfill area pond have since been removed, after a demonstration <br />that the disturbed areas draining to these two ponds can meet <br />effluent standards without treatment. The shop area pond and the <br />HG-8 pond are to be permanent ponds. Several diversion and <br />collection ditches are located at the mine site. Ditches 1 and 3, <br />and the west collection ditch have riprapped portions. Ditches 1, <br />2 and 3 are permanent ditches. <br />Reclamation operations immediately followed mining cessation,- <br />with the mine pit completely backfilled and graded, topsoiled and <br />seeded by the end of 1986. Office/shop/warehouse facilities were <br />reclaimed in the Fall of 1987. A total of 362 acres were <br />disturbed and reclaimed at the mine site. Topsoil replacement <br />depths averaged 21 inches. Three different seed mixtures were <br />employed for revegetation. Pages 2.05-8, 2.05-9 and 2.05-10 of <br />the consolidation volume from TR-63 list the seed mixes. Through <br />Technical Revision No. 62, the Division granted approval for the <br />establishment of three shrub augmentation areas, in order to <br />supplement the woody species on the mine site. <br />5 <br />