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52.04 APPLICATION FOR PERMIT FOR SIIRFACE OR UNDERGROUND MINING ACTIVITIES -- _ MINIMDM REQUIREMENTS FOR INFORMATION ON ENVIRONMENTAL RESOURCES. 2.04.9 Soils Resource Information. (1) In general, the soils within the permit area are deep, well drained, and vary widely in slope. Permeability values are low, thus encouraging surface runoff; as a result, the water erosion hazard is often high. Generally available water ca- pacities are high, reflecting the potential of these soils to store water for plant use. Topsoil layers are shallow, rang- ing from about two to eight inches; surface textures are gen- erally looms or clay looms which subsoils range from clay to looms to clays. Basaltic cobbles and stones are common throughout the profiles of most soils. Although only soils information for those portions of the per- mit area disturbed by surface operations and facilities is re- quired, CWI submits soil resource information on the entire permit area. This assists in characterizing the environmental resources of the permit area more completely. Soil delineations for the mine area and adjacent lands are shown on Map 9-3. A conversion legend is also shown in Table 2.04-19 in the Soils Appendix, Volume 9. Soil descriptions for each mapping unit are given along with site specific soils analysis sheets for the area at the mine and the to adout area in the Soils Appendix. The capability classification groups of soils, as identified on the site specific soils analysis sheets, are also shocm in the Soils Appendix. As stated in Section 2.05.3(3)(b), Operations Plan, earthwork development began at Orchard Valley Mine during October, 1975. Major excavation work on the mine site was completed by mid- 1976. During this time the benches, as shown on Map 8-1, were constructed. Also at this time the site work at the storage and loadout area (Map 8-3) was being readied for construction of facilities. At that time no regulation governing the removal, stockpiling and replacement of topsoil was in effect. Because of the ex- tremely steep slopes of the mine site, no topsoil was removed, stockpiled or replaced. Although no topsoil was replaced, re- vegetative efforts to date have been successful. The areas constructed under the interim regulations were: di- version channel, sedimentation ponds, old waste disposal area, and pipeline/powerline. With great difficulty Colorado West- moreland did remove, stockpile and replace topsoil within Revised 08/01/84 Revised 10/12/86 Revised 10/01/87 67