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6. Maintenance fertilize the first, third and fifth years. <br />It would be desirable to "landscape" the flat surface <br />somewhat by constructing "hills" similar to those on the Uxad Tailing <br />ponds. However, at Henderson, it is not anticipated there will be any <br />material suitable for such a purpose. <br />Surface stability is a significant problem to be overcome <br />when revegetating tailing. It is expected that the area near the <br />crest of the tailing dam will be stable enough to support m.en and <br />equipment for revegetation within one year of shutdown. Therefore, <br />revegetation will commence at the dam crest and work toward the slimes <br />areas near the ultimate decant towers on a yearly basis as the tailing <br />dewaters and becomes stable enough to support equipment. The entire <br />tailing area will be revegetated in this manner, but it is expected <br />that six years might not be sufficient time for the slimes areas to <br />become stable enough to support heavy equipment during the summer. <br />The slimes areas surrounding the decant towers will therefore probably <br />have to be worked during the winter months when the surface is frozen~~~.}} <br />Vegetation establishment will hasten overall stability by the removal 1 <br />of water via evapotranspiration. ,/"n' <br />An average of 220 acres per year will be revegetated in this <br />manner, completing the job in the year 2012. It is expected that the <br />vegetation will be self-sustaining within 5 years of establishment; <br />thus, the year 2017 is again the estimated date of final bond release. <br />A comprehensive dust control program will be implemented on <br />all possible unrevegetated portions of the tailing pond throughout the <br />reclamation process. Dust control technology is certain to improve in <br />9-15 <br />