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Permit M-1977-493—Climax Mine <br /> reclamation at the completion of dam construction. 4 Dam was taken over by Eagle River Water& Sanitation <br /> District and is no longer owned, maintained, or operated by Climax. <br /> A nominal 24 inches of reclamation cover will be applied to the dam faces. Reclamation cover sources will be the <br /> same as those used for Mayflower TSF reclamation with an upland seed mixture used (Section E-7.1.2). <br /> E-11.5 Other Site-Specific Reclamation <br /> There are many areas of the Climax property that have been disturbed during the past 90 years of mining <br /> activities. This reclamation plan outlines specific strategies for anticipated new disturbances; however, there are <br /> many previously disturbed sites that are ancillary and not specifically addressed by this plan. These ancillary <br /> areas will still need to be reclaimed using the best reclamation procedures that have been specified for other sites <br /> but will not be specifically addressed in this plan. Upon the permanent cessation of production operations at the <br /> mine and mill, Climax will reclaim all remaining affected areas not required for continued water management and <br /> monitoring of the site. Additionally, several sites, including Robinson Lake and the mill facility area, will require <br /> site-specific reclamation as outlined below. <br /> E-11.5.1 Robinson Lake <br /> Robinson Lake is currently used for process water storage, but it will be reclaimed after it is no longer needed for <br /> mineral production operations. Specific water management strategies are discussed in Exhibit G: Water <br /> Resources (Section G-5.3—Exhibit G). <br /> E-11.5.2 Roads, Mill Area, and Facilities <br /> Buildings, utilities, processing equipment, and other above-ground structures and materials no longer required <br /> during the post-reclamation period will be demolished after asbestos abatement has been completed. To the <br /> extent possible, the salvageable and recyclable materials obtained from these structures and facilities will be <br /> retrieved and sold or recycled. Material that is not retrievable or practicably recycled will be disposed of by burial. <br /> Buried pipe, wire, and other ancillary belowground infrastructure will be left in place during reclamation if it does <br /> not interfere with regrading activities and is non-toxic or not hazardous. Foundations deeper than 3 feet from the <br /> reclaimed surface that will not interfere with regrading activities will also be left in place. Concrete floors, walls, <br /> equipment pedestals, and foundations that will be within 3 feet of the reclaimed surface will be rubblized or <br /> fractured and buried prior to site regrading. Asphalt may be left in place if it will be covered with at least 24 inches <br /> of reclamation cover during final reclamation grading. If not buried in place, asphalt will be removed from site <br /> surfaces during reclamation. <br /> Following structure demolition, the areas will be regraded as needed to achieve a stable surface. Twenty-four <br /> inches of reclamation cover will be applied to all areas that do not have an existing adequate growth medium. <br /> Reclamation areas will be seeded with the upland standard seed mixture (Section E-7.1.2; Figure F-01, Exhibit F). <br /> Roads not to be retained for an approved post-mining land use will be reclaimed after they are no longer needed <br /> for mineral production and reclamation purposes. Current road locations shown in Figure F-01 (Exhibit F) as <br /> permanent facilities are conceptual and may change. Roads will be graded and filled as necessary to blend with <br /> the adjacent terrain and to meet natural drainage patterns. Following rough grading, reclamation cover will be <br /> applied and seed will be spread. The seed mixture used will be appropriate to the elevation of the road. Vehicular <br /> access to reclaimed roads will be restricted. <br /> E-11.5.3 Underground Mine Openings <br /> Underground access portals at, Storke Portal, No. 3 Gallery, and Phillipson Portal shall be closed off with <br /> concrete bulkheads to prevent access from the public. The bulkheads will be 2 ft thick and will not be designed to <br /> provide hydrostatic blocking of subsurface water. <br /> The Tenmile Tunnel will be used as the operational water control and spillway off the TSF. It is assumed that the <br /> original Tenmile Tunnel (south)will be decommissioned and plugged with a 15-foot concrete bulkhead (Exhibit G). <br /> Exhibit E E-16 May 2024 <br />