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Tributaries to Fish Creek have historically exhibited ephemeral <br />characteristics, but mining related flow may change these to perennial streams. <br />Current and historic land use in the vicinity of the operation has been <br />grazing for livestock and wildlife habitat. Irrigated cropland in the area is <br />limited to portions of the Fish Creek alluvial body and to the Yampa River <br />floodplain. Non-irrigated crops are grown on sloping upland areas, as well as <br />on alluvial flats. No cropland will be disturbed by mining. <br />The soils found within and adjacent to the mine plan area are typical of soils <br />found in the cold, semi-arid regions of the western United States. The soils <br />are generally moderately deep (20 to 40 inches) to shallow (10 to 20 inches) <br />and have developed in weathered, interbedded fine sandstone, siltstone, and <br />shale, and in local slopewash and colluvium. Soil replacement depth on <br />reclaimed portions of the mine will be 1.0 feet. <br />Vegetation in the vicinity of the operation is characterized by three <br />vegetative types; mixed brush, sagebrush grassland, and aspen. Because of <br />livestock grazing, shrubs have increased in density while fortis and grasses <br />have decreased. <br />Numerous wildlife species inhabit the general area of the mine site. The most <br />predominant big game species are elk and deer. Common raptors are Golden <br />Eagle, Red-Tailed Hawk, Great Horned Owl, Marsh Hawk and American Kestrel. <br />Description_of the Operations and Reclamation Plan <br />The Seneca II Mine is a surface mine utilizing area strip techniques. Mining <br />occurs in two separate areas: the Wadge and Wolf Creek. Topsoil is removed <br />and stockpiled or, whenever possible, live handled, well in advance of mining <br />operations. Overburden is shot and then removed by dragline buckets; while <br />the coal is shot and removed by backhoes and loaded into trucks which haul the <br />coal directly to the Hayden Power Plant. <br />Box-cut spoils have been graded into the surrounding topography and have been <br />topsoiled and revegetated. The overburden from each successive cut is spoiled <br />into the previous pit. Following spoil deposition, each pit is graded, <br />topsoiled and revegetated with the approved seed mix. <br />Runoff from the site is routed through sediment ponds to limit off-site <br />hydrologic impacts. <br />Upon cessation of mining activities, the following activities will occur: <br />surface facilities will be removed, all surface disturbances including <br />variance areas will be regraded to approximate original contour, topsoil will <br />be redistributed over the area, and the area will be revegetated. Reclamation <br />success will be determined by statistically comparing the reclaimed areas to <br />approved reference areas. <br />-5- <br />