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. " ,~c.... ,", J. 'i ~ ,; ANNUAL OPERATING PLAN FRYINGPAN-ARKANSAS PROJECT, COLORADO WATER YEAR 1983 OPERATIONS WATER YEAR 1984 OUTLOOK I. GENERAL This report is the fifteenth Annual Operating Plan for the Fryingpan-Arkansas Project. The project is essentially complete and consists of federally owned dams, reservoirs, conduits, tunnels, pumping plants, a pumped-storage powerplant, electric transmission lines, substations, and other facilities. These features are located in the Fryingpan River and Hunter Creek drainage areas of the Colorado River Basin and in the Arkansas River Basin in central and southeastern Colorado. Features to be completed are the Fountain Valley Conduit and the Mt. Elbert Pumped-Storage Powerplant - Unit 2. These extensive works will provide orderly and beneficial use of water for irrigation, hydroelectric power generation, municipal and industrial uses, flood control, and other incidental benefits, such as fish and wildlife pre- servation and recreation. . Th is report prov ides the bas i s for increased cooper at i on and unders tand i ng among all concerned with the coordinated operation of the project. The report has two main parts. The first part reports the results of actual operations in water year 1983 (October 1, 1982, to September 30, 1983), The second part presents operating plans for water year 1984 (October 1, 1983, to September 30, 1984). The most probab 1 e condit i on of wa.ter supply was used in es tab 1 i sh i ng the genera 1 plan for future operat ions. Thi s condit i on of water supp 1 y was derived by statistical analysis of historical water supply data. Mter review of the monthly snow surveys prepared by the Soil Conservation Service, the plan will be revised based on the projected water supply. The project was authorized under Public Law 87-590, 87th Congress, H,R. 2206, on August 16, 1962, This law provides that the project will be operated under the Operating Principles adopted by the State of Colorado on April 30, 1959, as amended December 30, 1959, and December 9, 1960. These Operating Principles were published by the 87th Congress, 1st Session, as House Document 130. II. PROJECT FEATURES IN OPERATION DURING WATER YEAR 1983 In water year 1983 the project features in operation were Ruedi Dam and Reservoir; Sugar Loaf Dam and Turquoise Lake; Twin Lakes Dam and Twin Lakes; Mt. Elbert Forebay; Mt. Elbert Pumped-Storage Powerplant; Mt. Elbert Conduit; Pueblo Dam and Reservoir; Charles H. Boustead, Hunter, Carter, . 1