Central Utah Project, Bonneville Unit correspondence, 1978

Page 41

r r I GENERAL PLAN MUNICIPAL AND INDUSTRIAL SYSTEM BONNEVILLE UNIT CENTRAL UTAH PROJECT The Municipal and Industrial (M & I) System located in Salt Lake; Summit; Utah; and Wasatch Counties of north-central Utah, is an integral part of the Bonneville Unit. It is a storage and delivery system which would deliver 90,000 acre-feet of M & I water annually to Salt Lake and Utah Counties (70,000 and 20,000 acre-feet, respectively); provide 14,100 acre-feet of supplemental irrigation water annually to agricul- • tural areas near Heber City and Francis, Utah; improve recreation oppor­tunities; provide flood control; and maintain a conservation program for fish and wildlife. To accomplish these purposes, several features would be constructed and other associated programs implemented. The main feature would be Jordanelle Dam and the 320,000 acre-foot Jordanelle Reservoir. Located 6 miles north of Heber City, Utah, this dam and reservoir would store and regulate Provo River flows, trapping excess spring flows and .. appropriated flows. Irrigation releases would be diverted from the Provo River above the reservoir by exchange and direct releases between the reservoir and Deer Creek Reservoir, while M & I releases would pass through Deer Creek Reservoir and be diverted from the lower Provo River. M & I diversions from the lower Provo River would enter the existing Union Aqueduct (Olmsted Flow Line), flow through it down Provo Canyon, and then be diverted through the proposed Alpine Aqueduct. The Alpine Aqueduct would convey the M & I water to the Central Utah Water Conser­vancy District's proposed Utah Valley Water Purification Plant, where part of the water would be exchanged for water in the Salt Lake Aqueduct; this water would then flow through the purification plant and be dis­tributed through another section of the Alpine Aqueduct to the Frcvo- Orem area. The rest of the M & I water would enter a proposed section of the Jordan Aqueduct and be conveyed to the Jordan Water Purification Plant for treatment. Water would be conveyed from there to areas of Salt Lake County by completed sections and another planned section of the Jordan Aqueduct. In addition to construction of these features, 15 high country reservoirs on the upper Provo River would be modified; 13 of them would be stabilized by transferring their active storage to Jordanelle Reser­voir. Stabilization would improve their recreation, esthetic, and fish­ing value. Recreation facilities constructed at the proposed Jordanelle Reservoir would provide enhanced recreation opportunities. Flood con­trol, which would be provided by Jordanelle Reservoir, would reduce flood­ing along the Provo River and reduce spills from Utah Lake which now flow unused into the Great Salt Lake.