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Local Surface Supplies It is estimated that an additional dependable supply of 600,000 acre- ~ feet of water could be developed from the combined Bear, Weber and Jordan 00 River systems. The actual amount developed would, of course, be determined ~ by legal and financial considerations coupled with the need for the resource. 00 A brief discussion of each of these systems is presented in the following paragraphs. The Bear River could provide a major portion of this potential 600,000 acre-feet. At the present time, approximately 915,000 acre-feet flow from the Bear River into the Great Salt Lake. The Bureau of Recla- mation is studying opportunities for in-basin utilization of a large percentage of the total water supply of the Bear River. Also, there exist possibilities for diversions from the Bear River into the Weber River and thence into the Provo River Basin. These diversions, while not yet studied in detail, appear to offer an opportunity to improve system efficiency and produce an effective increase in water supply to the Wasatch Front as a whole. The Weber River is controlled largely by the Bureau of Reclamation's Weber Basin, Weber River, and Ogden River Projects. In addition to consider- able upstream control, the projects provide lowland control in the 198,000 acre-feet active capacity off-stream Willard Bay Reservoir, located on the east shore of Great Salt Lake. The reservoir is capable of releasing water on demand to substantial areas of managed waterfowl habitat. The works on the Weber and Ogden Rivers accomplish essentially complete practicable control of water resources of these streams, although full use of the developed supply appears to be some time in the future. There are presently works in the upper reaches of the Weber River divert- ing an average of about 35,000 acre-feet annually into the Provo River. These works under existing rights could divert at least twice that much Weber River water. The Jordan River flows from Utah Lake and conveys water to Salt Lake County. The flow may be regulated by pumping from Utah Lake to meet demands. Utah Lake, in turn, is supplied from the Provo River, Spanish Fork River, and various minor tributaries. The Provo River presently is augmented by trans-basin diversions from the headwaters of the Duchesne River (Colorado Basin) and the Weber River, as previously mentioned. Similarly, the Spanish Fork River is augmented by diversions from the Strawberry River (Colorado Basin). Storage on the Provo River (Deer Creek Reservoir) permits contro11ed diversions into Salt Lake County via the Provo Reservoir Canal and the Salt Lake Aqueduct. Additional intermediate level storage on the Provo River is planned under the Central Utah Project (Jordane11e Reservoir) to be construc- ted by the Bureau of Reclamation. -28-