Laserfiche WebLink
OUR4V SILL ER 119LbE5 <br /> indicate the required amount of overburden and topsoil required to baclfll over the top of the <br /> concrete plug, as well as the source of that material. In association with the narrative with the <br /> above listed details,please provide a final reclamation configuration map of the reclaimed shaft <br /> areas. <br /> OSMI Response: The removed section of the shaft casing and concrete pad will be broken into <br /> smaller pieces and placed down the shaft prior to capping and backfilling.No off-site disposal of <br /> this material is proposed. The volume of material required to backfill over the top of the concrete <br /> plug will be the same as the amount of material removed during shaft construction. The <br /> backfilled material will be blended in to match the local topography with a minimum of 6 inches <br /> of topsoil or native materials placed on top of the backfilled areas. The sources of this material <br /> will be soil or other native materials(e.g., rock) stockpiled during shaft construction.Additional <br /> text was added to the Reclamation Plan, and a new map F-2 with the reclaimed shaft areas is <br /> included in Attachment 2. <br /> The shaft areas will be reclaimed as follows: <br /> • Monogahela(Hubb Reed) Shaft in Governor Basin-the proposed shaft area is located on <br /> a previously disturbed area and is comprised primarily of waste rock material from <br /> historic operations. The reclamation of this area will include demolishing the surface <br /> structures and placing them down the shaft and capping as described in the Reclamation <br /> Plan. Waste rock and other native materials removed during construction will be placed <br /> over the top of the cap and blended with the surrounding landscape. <br /> • Yellow Rose and 960 Raise—Soils and other native materials will be removed during <br /> construction of the shafts and stored in berms within the permit area. Reclamation of <br /> these areas will include demolishing the surface features and placing them in the shafts <br /> and capping the shafts as described in the Reclamation Plan. Materials excavated during <br /> construction will be placed over the top of the cap, blended with the native landscape and <br /> broadcast seeded. <br /> d. Section 3.3 "Dismantle Buildings and Structures at Portal Area"discusses the demolition of <br /> structures, associated foundations and removal of contents for structures to remain post- <br /> reclamation. Please indicate the final disposal location for all items to be removed from the site, <br /> the estimated total volume (by material type) and if any materials require disposal in a <br /> specialized hazardous materials disposal site please indicate the location and haulage distance <br /> to that facility. <br /> OSMI Response: The buildings and structures to be removed at the Revenue Portal Area <br /> ultimately will be placed inside the portal prior to closing the portal. Materials will not be <br /> disposed of offsite and will not require a specialized hazardous materials disposal facility with <br /> the exception of unused mill chemicals.A list of these materials is provided in Table L-2 within <br /> the reclamation cost spreadsheet. The portal will be backfilled to the surface highwall and a steel <br /> bat gate will be installed over the entrance. <br /> 6 1 P a g e <br />