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,~,_.'i " .. . SYNOPSIS This report is made in accordance with the Federal reclamation laws (Act of June 17, 1902, 32 Stat. 388, and acts amendatory thereof'or supplementary thereto, particularly the Boulder Canyon Project Act, 45 stat. 1057, and the Boulder Canyon Project Adjustment Act, 54 stat. 744) . The Area and Its Needs The project area includes land on both sides of the Great Basin Divide, the high mountain series consisting of the Wasatch Mountains and continuing ranges, that extends north and south across the center of the State. To the east of the divide, within the Colorado River Basin, are the Uinta Basin lands that would be served by the project . This area includes the communities of Vernal, Roosevelt, and Duchesne. To the west of the divide is the Bonneville Basin. The project would serve an area along the eastern border of this basin. This area, the most highly developed region in Utah, includes the communities of Salt Lake City, Provo, Heber, Spanish Fork, Payson, Nephi, Richfield, Delta, and Fillmore. The need for water and electric energy in the Bonneville Basin is intensified by expanding industrial activities. The new Geneva Steel Plant near Provo, the largest fully integrated steel plant west of the Mississippi, and the Kennecott Copper Company's electrolytic refinery, recently constructed near Salt Lake City, are important industrial addi- tions. Finished steel and copper are attracting satellite industries. Largely as a result of the industrial expansion, the population of the Bonneville Basin portion of the project area increased 29 percent from 1940 to 1950. The area's demand for food and for municipal, industrial, and miscellaneous water supplies has increased accordingly. The basin contains vast areas of rich alluvial soil, but irrigation is generally required to mature crops. The flow of small local streams, practically the only source of water, falls far short of irrigation re~irements. Importation of a substantial amount of water into the basin is essen- tial to the basin r s agricultural and industrial expansion but can be accomplished only through developnent of the Central utah project. Without the importation contemplated under the project, future munici- pal and industrial expansion in Salt Lake City and areas to the s.outh will require a reduction in the use of water for irrigation. Also, without the importation of water and without an increased supply of electric energy, further development of the Bonneville Basin's rich resources of land, minerals, and chemicals will be slowed. .;-; :::-~ f': In contrast to the Bonneville Basin, the Uinta Basin has abundant water resources as compared with the land resources. Streams flowing south from the Uinta Mounta1ns--the Duchesne River and its major tribu- taries, together with Ashley Creek and Brush Creek--produce more than 2