1985-03-22_REPORT - M1977493 - Laserfiche WebLink

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Supplementary Information to 1984 Annual Report, Climax Mine March 21, 1985 Page 4 Question: Areas 31F and 35A-Revegetation Other Disturbances at $ 1 , 250: Same discussion as presented under Area 11A above. Our brevity has resulted in omission. The average revegetation cost of $2, 250 per acre presented in the annual report is more appropriately described as the Average Difficult Site Revegetation cost. Difficult sites are sites which require some amendment such as sewage , wood chips , straw, excelsior mat , jute net- ting , etc . Examples of difficult sites are steep slopes, tailing surfaces and tailing dams. Some areas are not difficult to revegetate . Some sites are relatively flat, have a good quality growth medium in place , and are easily revegetated without amendment. Revegetation of this type of site can be accomplished for $1 , 250 per acre. In Area 31, the Mayflower Tailing Pond, we estimate 75 acres of this type of disturbance exists around the perimeter of the tailing. Area 35, Mayflower Topsoil Stockpiles , is another example of this type of revegetation. The stockpile area , once the stockpile is removed , is easily revegetated without amendment. Annual Report As discussed during our phone conversation of March 14, 1985, most of the eight information items required by Rule 2. 41 are very awkward to respond to for an operation such as Climax. Essenti- ally all of the disturbed areas at Climax that will not be redis- turbed in the future have been revegetated, and , we have revege- tated these areas well in advance of the permit timetables. Increases in disturbed acreages each year are due to the deposition of tailing , mainly at Mayflower pond , and possible growth of the Open Pit. As reported in the 1982 Annual Report ( submitted February 28, 1983) , Mayflower tailing covered 302 acres and was expected to increase to 318 acres by the end of 1984. ( Mayflower was bonded for 388 acres . ) The slow rate of increase for this time period was because of the slowdown in production rates from September 1982 into April 1984. As of the end of 1984, Mayflower tailing covered a total of about 315 acres and we anticipate that it will grow to 375 acres by the end of 1986 (as indicated in the cost breakdown of Area 31 of the current Annual Report) .