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- 5 - <br /> 6. As previously discussed, the Mayflower (No. 5) dam would be an <br /> excellent location to implement topsoil placement and revegetation. - <br /> This dam is immediately visible from Highway 91 and this seems to be <br /> - <br /> a good location to use some of the available topsoil . How do you <br /> plan to apply topsoil and vegetation at the No. 5 dam? <br /> 7. Revegetation of the tailings surfaces is one of the main goals for <br /> reclamation at the Climax Mine site. The existing plan indicates <br /> that methods used at the Urad Mine will be transferred to the Climax <br /> Mine. Direct revegetation of the tailings may be possible; however, <br /> long term maintenance programs will be needed according to initial <br /> Climax Mine test plot data. In fact, many of the plots were observed <br /> to be bare (or nearly bare) of any vegetation. It is probable that <br /> revegetation will require the application of some type of surface <br /> cover. This might be topsoil , amended waste rock or some combination <br /> of these. <br /> The amended plan must provide preliminary reclamation plans that can <br /> be implemented in the near future. This may involve detailed test <br /> plot designs. We recommend that AMAX isolate suitable areas along <br /> the periphery of the tailings facilities so that these areas can be <br /> reclaimed starting this year, perhaps using various methods. These <br /> areas could serve as somewhat larger scale test plots than those used <br /> previously. <br /> 8. Some other issues related to revegetation are as follows: <br /> a. The vegetation percent cover standards provided in the existing <br /> reclamation plan are probably too broad. How do these compare to <br /> native conditions? These will require revision as the new plan <br /> is developed. <br /> b. Plant uptake of metals or toxic constituents will be a concern, <br /> especially if the area is intended as wildlife habitat. <br /> Molybdenum is of particular interest. Has Climax conducted any <br /> research in this area and what are the conclusions? <br /> c. Is there an adequate seed source to allow large scale <br /> revegetation? <br /> 9. Ultimately, tailings pond and dam stabilization must be adequate to <br /> ensure that long term tailings leachate and runoff production will <br /> not cause significant degradation of the local hydrologic system. <br /> Ideally, final reclamation should be implemented so that the <br /> performance standards can be achieved without continuous <br /> maintenance. The reclamation plan should be designed to allow a <br /> maintenance-free situation, and thus full financial warranty release. <br /> a. Climax is currently using some form of water treatment program in <br /> the Ten Mile Creek Drainage. Please provide details regarding <br /> the type of system being employed. <br /> b. How are the Arkansas River and Eagle River drainage systems being <br /> protected against water quality degradation? <br />