GENERAL53634 - Laserfiche WebLink

Home Browse Search

concept of concurrent backfill and reclamation in five distinct stages (A through E). As mining progresses through these stages, reclamation is finalized above the active excavation area and reclamation comes to a natural conclusion when the ore body is exhausted. The first area to be fully reclaimed will be the area where waste rock from Stage A is deposited in a small valley fill. Backfill material placed in all reclaimed slope areas will be compacted and sloped at a 2 %:1 ratio to allow for attainment of revegitation on reclaimed slopes. Topsoil material stockpiled from previous clearing operations will then be placed on the re-sloped areas. Mulch material, stockpiled from tree and brush clearing operarions, will be spread out on top of the topsoil layer. The seed mixture used with successful current reclamation efforts (described below in the Soils Information section) will be seeded during the fall months. If the accumulation of topsoil stockpiles exceeds the on-going reclamation and revegitation requirement, excess topsoil stockpiles will also be seeded during the fall months to facilitate stabilization. Areas for stockpiling topsoil and slash are noted on Exhibit C-1. The final mined surface Stage E will be a gently sloped surface with a slight grade of approximately 0.5% to the southwest. Topsoil, mulch and seed mixture will be placed on this final surface to complete the reclamation process. Reclamation Plan Map Final Reclamation Plan Map (Exhibit F-1) and Longitudinal Pit Section Showing Original, Mined and Reclaimed Surfaces (Exhibit F-2) are attached. Environmental Impact Report The amended area is located entirely within federal land. BLM project review was conducted in accordance with the National Environmental Policy Act (NEPA). This procedure included preparation of Environmental Assessment CO-140-2001-064 EA. A copy of this document is attached for appropriate referral parties. Eguiument Maintenance and Storage It will not be necessary to relocate the existing maintenance and storage facility at the existing mine to the amended location. Existing facilities will continue to be utilized for maintenance, parts storage, fuel storage, lunchroom space and office space. All items in this category are covered under current permitting and there will be no additional impact due to the amended area (Exhibit B-3). 7