C150163 Feasibility Study - Laserfiche WebLink

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I I I I I I I I I I I I I I I I I I I ongoing, unquantified costs associated with the inefficiencies throughout the system in addition to rental water fees of approximately $300,000 per year (at current rental rates) to meet the demands of its shareholders. Alternative 2 Plans by the Northern Colorado Water Conservancy District (NCWCD) for development of Glade Reservoir north of Fort Collins provide a potential solution to the problem of lack of storage within the system. The Company could purchase shares in the reservoir to use for storage. Current projections by the NCWCD for storage in Glade Reservoir are approximately $1300/ac-ft. This option is attractive for overcoming the problem of lack of storage; however, it does not address the operational efficiency issues of the ditch or the need for groundwater augmentation. Additionally, Glade Reservoir would not be available until 2012 at the earliest so this alternative does not address the Company's immediate needs. Alternative 3 This alternative consists of constructing three reservoirs, a pipeline, and a pumping station near Barnesville, Colorado. One reservoir would be used as an equalizer to balance flows in the ditch to help overcome operational inefficiencies. The other two reservoirs would be filled during the winter with water pumped from the ditch through the pipeline. These reservoirs would be used for storage and/or groundwater augmentation. SELECTED ALTERNATIVE Alternative 3 was selected because it is the most feasible alternative for meeting the Company's needs for equalizing ditch flows, improving efficiency throughout the distribution system, recharging depleted groundwater supplies, and for providing storage. Specific requirements of the selected alternative are described below: 1. Construct Barnesville Equalizer, an approximately 300 acre-foot equalizer reservoir located directly adjacent to the North Side Extension. This reservoir would serve to stabilize ditch flows downstream and would act as a sedimentation basin for water pumped to storage. The reservoir would include an approximately 5-foot high earthen dam with emergency spillway. 2. Construct Cornish Plains Reservoir, an approximately 1600 acre-foot storage/augmentation reservoir. 3. Construct Drury Reservoir, an approximately 600 acre-foot storage/augmentation reservoir. 4. Construct the Barnesville Diversion Structure to divert water from the ditch to the Barnesville Equalizer. The concrete structure would include a New Cache Feasibility Study 5