2008-09-29_PERMIT FILE - C1981019A (13)

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RULE 4 PERFORMANCE STANDARDS C. DEFART,"AENTOF NATURAL FIESOURCE5 • .. ' x r Dav.d H. Ge=85. Execwive evec:or MINED LAND RECLAMATION DI) & y'a DAVIDC. SHELTON. Director. _ ?.F P.•%-era D. Lamm ? p d 3overrar 1984 i CV' January 21 l? Mr. Jiin Kiser Colowyo Coal company 5731 State hignway 13 Meeker, Colorado 81644 Re: Stipulation No. 5 (Shrub Density Standard) File No. C-019-31 Dear Kr. K i per You have proposed a woody plant density standard of 850 stems per acre for the Coiowyo Mine. Further, you have proposed that a minimum of 20% of the reclaimed slopes less than 5:1 would be designated shrub clump establishment areas wnere transp'.anting of mature shrub clumps ano/or direct seeding and transplanting of shrub seedlings would be employeo. Me sures to enhance establishment of seedling shrubs in the shrub clump estaolishment areas will include the use of direct haul topsoil and/or a modification of the regular _ herbaceous seed mix (so as to reduce the competition between herbaceous species and seedling shrubs). -he Division has two remaining concerns. First, as you have observed, a standard of 1,000 woody stems per acre has been recarnended by the Division of Wildlife for reclaimed lands in Northwest Colorado. Given the somewhat generalized nature of the shrub estaolisnment plan provided by Colomyo and the lack of specific justification for the propos:.: 8F0 stem per acre stem density standard, the Division does not feel comfortaz:e in approving a woody density standard which is lower than that recommended by the Division of Wildlife. Second, the plan indicates t,iat in some instances the regular seedmix.wili not be seeded in order to reauce herbaceous conaetition. The Division agrees that an alternative seed mix is warranted. Information should be submitted on the mocified seed mix ana seeding rate and the criteria which will be applied in selecting areas which would not be seeded with the regular send mix (acreage, slope, erosion control etc.). In resolution of Stipulation No. 5, the Division sets the woody plant density standard for the Colowyo Mine at 1000 sterns per acre for all portions of the reclaimed area except perimeter slopes which are steeper than 5:1. Shrub reestablishment is to your letters of Novenber 8, r_ 54ing the objective of 10CD 15ity standard will not be be acccr::;lished as specified in this letter ana 1983 and October 25, 1984 (with "the exception stems per acre rather than 850 stems per acre). A ap; lie•.: to the perimeter slopes steeper Char: 5:11 Rule 4 Performance Standards 4.15-15 Revision Date: 6/23/08 Revision No.: MR-91