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-45- <br />Since no topsoil was salvaged, an analysis of the original Orchard Valley Mine <br />bench material N olume 9 - Soils Tests Appendix) was conducted. The analysis <br />indicates that the material is suitable as a plant growth medium. This is <br />also true for the storage and loadout areas. Vegetative growth on fill <br />outslopes has occurred. At final reclamation in these areas, the operator has <br />committed to ripping and testing this material for fertility. Fertilizers and <br />amendments will be added as necessary. The area will then be seeded and <br />mulched. <br />At the Orchard Valley West Mine, a total to twelve (12) acres was <br />disturbed--approximately 10.5 acres of Del son Loam west of the East Roatcap <br />Creek, and about 1.5 acres of Sara ton Stoney Loam on the east side of this <br />creek. Due to the high rock content and steep slopes, the Saraton Stoney Loam <br />soils were not salvaged, but topsoil will be replaced during final reclamation <br />using the Del son Loam soils. A total depth of 32 inches of Del son Loam was <br />salvaged allowing fora replacement depth of 24 inches over the twelve (12) <br />acre area during final reclamation. Current literature, as cited in Yolume 9, <br />indicates that a 24-inch average replacement depth will support a vegetative <br />community consistent with the approved post-mining land use ob,)ectives. <br />Because of the limited available area at the Orchard Valley West Mine, topsoil <br />is stored in two areas--outslopes of the portal bench, and a topsoil stockpile <br />north of the portal bench. Topsoil on the bench outslopes was spread to a <br />depth of approximately four (4) feet, seeded, and stabilized with an erosion <br />control blanket. The topsoil stockpile is protected from erosion by seeding <br />and mulching. <br />During initial development of the West Ridge waste disposal pile, <br />approximately 24 inches of topsoil was salvaged. As waste pile expansion <br />occurs, soil material will be analyzed to determine optimal salvage depths. <br />Currently, 8-9 inches of topsoil is salvaged from this area. Topsoil is <br />stockpiled and protected from erosion by seeding and mulching. Of the four <br />(4) feet of cover placed over this waste disposal pile, the outer 8-9 inches <br />is topsoil. <br />The operation is in compliance with the requirements of this section. <br />XI. VEGETATION (2.04.10, 2.05.4(21(e), 4.15) <br />Information pertaining to vegetation baseline may be found on pages 70-75, <br />Part 2.04 of Volume 1 and in the Vegetation Appendix of Volume 9A. <br />Information pertaining to the revegetation plan and vegetation success <br />criteria may be found on pages 67-76, Part 2.05 of Volume 1 and in the <br />Vegetation Appendix of Volume 9A. <br />Disturbance at the Orchard Yalley Mine began in late 1975 and continues to <br />date. Initial disturbance occurred prior to any requirements for preparation <br />of vegetation inventories, thus portions of this mine site were not surveyed. <br />However, as new areas are proposed to be disturbed, they are first inventoried. <br />A total of four vegetation inventories have been completed to date at this <br />mine site. The first inventory was conducted in 1977 and provided a brief <br />qualitative description of the vegetation types to comply with the existing <br />