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Final Compensatory Mitigation and Monitoring Plan—Version 2.0 <br />Climax Mine Overburden Storage Facility Expansion (SPK-2013-00045) <br />March 2017 Bikis Water Consultants, a division of SGM Page 14 <br />Excavation of tailings in selected areas and transport to the currently active Tenmile <br />Tailings Storage Facility. <br />Placement of soil (including the salvaged soil cap and additional soil) on the excavated <br />areas and areas to be filled to bring the surface to the grades shown on the plan, for the <br />areas designated for plantings, or to within 12 inches of the grades shown on the plan for <br />areas to receive salvaged plant/soil material from the impacted wetlands in McNulty <br />Gulch. Climax has sufficient soil stockpiles available from prior soil salvage activities for <br />the Lake Irwin mitigation site. <br />Completion of the grading to the elevations and grades shown on the Grading Plan. This <br />will include a small berm around each cell of the mitigation site to enable phased <br />construction. <br />Improvements to the current water conveyances in the Sheep Mountain drainages to <br />better manage flow to the Lake Irwin mitigation wetlands, and the construction of an <br />outlet channel and outlet control structure to return excess water from the wetlands to the <br />Upper Eagle River watershed (Figures 5a and 5b). <br />Salvaged wetland plants/soil from McNulty Gulch will be used for revegetation, with the <br />remainder revegetated using a combination of transplants, cuttings (for willows) and <br />containerized plants (see Section 6.3. Planting Plan). <br />All excess material will be removed from the site and redistributed away from wetlands and <br />water sources. <br />6.3 PLANTING PLAN <br />The planting plan for the Lake Irwin Mitigation Site is included as Figure 6. Two types of <br />plantings will be used. Salvaged wetland soil and plant material from the OSF expansion area <br />will be used to the extent feasible. The goal is to use salvaged wetlands for 25 percent of the <br />site. A combination of transplants, cuttings (for willows) and containerized plants will be planted <br />on the remaining wetland areas 3-foot, on-center (4,840 plants per acre). As needed, Climax <br />will enter into a contract-grow agreement with a qualified nursery for plant materials. Plant <br />species and percent composition are shown on Figure 6. All plantings will be maintained in <br />proper condition prior to installation.