2003-03-11_REVISION - M1977342 - Laserfiche WebLink

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03/11/2003 13:19 9707253303 !NR-07-03 1!:SdA,M FR011-Nenderaon lfine 2nd floor GRAND CO BUILDING DP PAGE 11 303 568 2830 Y-912 P.002/003 F-B11 _ i ~~„111AAX MOLYBDENUM COMPANY F~eindersnn Operations ~~'dt.• ~ a s°°oeay u °Ipipa Oao7e ~rid+w^ P.O, Box 68 i Empire, paloraCO 0043a ~~ \\ !3031569-322 E, 0~~~,~ap Fex 13031 569.2830 March 7.20013 1 ~ ~ ~ ~~ Certified Mail No. 7002 0510 0000 5652 2135 ~. Chairman Colorado Mined Land Reclamation Board i 313 Sherman Sveet, Room 215 Denver, Colorado 80203 Re: Henderson Mine and Mill Permit M-77-342 -Revisions to Amrndment AM-04 Dear Mr. Chairman: Climax Molybdenum Company, Henderson Mine and Mill ("Henderson") is requesting the following changes to AM-04, submirted to the Colorado Division of Minerals and Geology on January 14, ?003. Revision of 100 Percent Dry Cover Reclamation of Tailing Imponadment to 70 Percent Water Resource Reclamation In AM-04, section 2.4, Henderson proposed t4 revise the plan for reclaimiing the current tailing impoundment with 100 percent dry cover, Tnstead, we offered a plan that would create a developed water resource over approximately 70 percent of the impoundment, with rite remaining 30 percent of the impoundment being reclaimed under the dry-cover scenario. In our AM-04 request, we specified that Henderson would submit a Technical Revisioq (TR) at a later date to provide DMG with engineering design and other information necessary Yo evaluate this alternative and determine the relevant changes in the financial warranty (k'Vl>). Rather than submit a TR request, Henderson proposes to provide this additional information in a subsequent permit amendment. Henderson is proposing the use of the amendment process in order to allow public review and dialogue on Uie details of ewer-cover. Revision of Tree and Shrub 1lanting Ill AM-04, section 22, Henderson proposed to plant lodgepole pine or shrubs at a rate of 50 per acre. Henderson requests that this proposed revision be eliminated, and thaz the tree and shnlb planting be done in accordagce with standards specified in Sectioq 92 of Henderson's original 1977 reclamation plan. Additionally, Henderson requests that plans to plant trees and shrubs on the reclaimed tailings deposition area (area 9) be eliminated. Based on our experiences at Urad and Climax, we expect close to 100% failure of trees and shrubs in this area. As an alternative, we propose the following: Construct ";stands" of thicker cover on portions of the reclaimed tailing areas using material from the coarse ore stockpiles. Henderson would rhea plant trees and shrubs on these islands.