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'. . . REsOURCE ASSOCIATES, INC. Robert R. Kelley Robert M. Weaver One United Bank Center Suite 3711 1700 Lincoln Street Denver, Colorado 80203 303 839,3799 October 17, 1989 Mr, J. William McDonald, Director Colorado Water Conservation Board 721 State Centennial Building 1313 Sherman Street Denver. Colorado 80203 Re: Proposed Reservoir Operation Plan for Black Lake Enlargement Dear Bill: On January 30, 1986, the Colorado Department of Natural Resources, through the Colorado Water Conservation Board (CWCB) and the Colorado Division of Wildlife, entered into an agreement with the Vail Valley Consolidated Water District (the District), in settlement of CWCB instream flow claims, the District's augmentation plan, and all issues related to the District's purchase of water from Green Mountain Reservoir. This letter is to provide you and your board, on behalf of the District, with an update on activities of the District pursuant to this agreement and to request your consideration of a proposal for modification and refinement of the rules for operation of reservoir storage at Black Lakes, Background and Current Status The key provision of the agreement between the Department of Natural Resources and the District is the District's obligation to provide 300 acre feet of augmentation water to Gore Creek to sustain the natural environment during critical low flow periods. This augmentation water is to be provided through the enlargement of Black Lake No. 1 by 227 acre feet and by use of 73 acre feet of storage in Black Lake No.2. Since January of 1986, the District has made the repairs and modifications to the spillway and outlet works for Black Lake No, 2 as necessary for making available the 73 acre feet of augmentation water, This work was accomplished during the summer of 1988, Pursuant to the enlargement of Black Lake No.1, the District has obtained approval for issuance of a Special Use Permit from the U,S, Forest Service, a Section 401 Certification from the Colorado Water Quality Control Division, and a Section 404 Permit from the U,S, Army Corps of Engineers, The only remaining permit required as a prerequisite to construction is an Eagle County 1041 Land Use Permit, An application for this permit is now pending before the Eagle County Commissioners, The District has also installed a U.S,G.S, gaging station at the Forest Road bridge to monitor streamflows in Gore Creek. Natural Resource Consultants