2011-01-13_PERMIT FILE - C1981038A (6)

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• 2.05.3 (5) Topsoil Handlin,p Plan Topsoil at the East and West Mines will be removed, stored and redistributed in accordance with Sections 4.06.1-.5. Prior to topsoil removal, a determination of the suitability of topsoil as seed- bed material will be performed as described in Section 2.05.4(2)(e)(viii) .After suitable topsoil depth and appropriate return depth determinations have been made, salvaged topsoil volumes will be calculated so an adequate storage area can be developed. Refer to Section 2.05.4(2 )(d) for site specific proposed and past topsoil handling procedures. Removal Topsoil removal will be accomplished in two steps: (1) clearance of surface vegetation, and (2) removal of suitable topsoil. Large trees and shrubs which would interfere with topsoil removal will be cleared by cutting or bulldozing. Suitable topsoil will then be removed with scrapers, front end loaders or dozers. If no suitable topsoil or less than six inches exists, a request will be made for a variance from topsoil salvaging per Rule 4.06.2(2)(a), Regarding subsoil segregation, the B and possible C horizon will be stockpiled depending on their qualities for comparable root development, especially where they are desirable to ensure soil productivity consistent with the approved Section 2.05.5 Reclamation Plan Post-Mining Land Use. • Storaee Topsoil will be placed in a clearly labeled stockpile when it is apparent that it cannot be redistributed within three months from the time of its removal. Before stockpiling, an area within the permit area with a stable surface, considering drainage, erosion and Flood plain, shall be selected for its placement. After placement in the stockpile, the stockpile will be re-vegetated according to the Revegetation Plan in Section 2.05.4(2e). Stockpiled topsoil and other materials shall not be moved until required for redistribution on a disturbed area. See Maps 8-l, 6A-1 A through H, 6A-2A through G, Map 8-6 and the Orchard Valley West Mine Portal Topsoil Place- ment & Sediment Control drawing in the Soils Appendix, Volume 9, for locations of topsoil storage areas. Redistribution Prior to redistribution of topsoil on areas io be vegetated, a return depth of suitable topsoil will be determined. Re-graded materials which have become hard packed or smooth surfaced would be scarified to an 8 inch depth with a bulldozer to eliminate slippage surfaces and promote root penetration. Topsoil will then be redistributed at an approximately uniform, stable thickness with scrapers, front end loaders, or dozers. The thickness of returned topsoil will be consistent with post-mining land uses, slopes, and the surface water drainage system. The proposed salvage and return depths of new disturbance shall be submitted to and approved by the Division. Also, topsoil shall be placed in such a manner as to prevent excess compaction and be protected from • wind and water erosion before and after it is seeded and planted. This will be accomplished .tx - zips Tz-zS~,Q~t,-o 3 iz~~v~YY