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CM0001641 <br />..ls <br />Fage 13 <br />4.0 COST ESTIMATES AND SCHEDULING <br />This section presents cost and time estimates for the reclamation measures presented in <br />Section 3.0. The cost and time estimates for the various reclamation measures are summarized <br />ii in Table 4. Detailed assumptions and calculations used to derive these estimates are presented in <br />Appendix A and Appendix B. <br />Yr The cost estimates presented in Table 4 do not include mobilization costs. Reclamation in the <br />ERV will likely be completed on an as-needed basis. Therefore, there may be more than one <br />mobilization/demobilization cost. However, to reduce the overall cost of reclamation, Climax may <br />1. wish to consider "packaging" a number of the reclamation measures together so as to minimize <br />mobilization/demobilization costs. Table 5 presents the cost and time estimates for potential <br />"packaged" reclamation measures. <br />Tables 4 and 5 do not include the cost or time for excavation of the oxide tailings in Eagle Park <br />Reservoir. At the time of this document preparation, Climax had already contracted out this <br />effort. Therefore, the cost and time estimated to complete the removal did not need to be included <br />in this report. <br />4.1 Eagle Park Reservoir <br />s <br />Reclamation costs for the Eagle Park Reservoir (excluding tailings removal) were developed for <br />reclamation measures not addressed in the current reclamation activities. <br />Reclamation Measure #1 <br />The additional costs associated with reclamation measure #1 are costs for placement of rip-rap. <br />Rip-rap placement along the upstream face of the dam and along-the shorelines is recommended <br />to cover the existing rip-rap which has been stained from the poor quality water in the reservoir. <br />Placing a new layer of rip-rap will also provide an aesthetically pleasing finish to the reclamation <br />of the reservoir which may help when selling water to downstream users. <br />The amount of rip-rap required for this task is approximately 6,000 cubic yards. Placement costs <br />for the rip-rap are estimated to range from $29,300 to $34,800. These costs are based on the <br />assumption. that a sufficient quantity of sized rock is locally available at the mine. <br />Assuming the equipment is already mobilized at the site, it is estimated that it will take <br />approximately 2.5 days to place the rip-rap along the reservoir. <br />OT110481=0 Environmental.