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<br />002068 <br /> <br />ARIZONA V. CALIFORNIA AND PACIFIC SOUTHWEST WATER PROBLEMS 71 <br /> <br />3. PACIFIC SOUTHWEST WATER PLAN REVISED <br /> <br />(January 1964) <br /> <br />The Revised Pacific Southwest 'Vater Plan was released in January <br />1964. It represented a substantial modification of thc original proposal <br />of August 1963'" 'rhe total cost of the program was greatly reduced <br />by the elimination of a number of features including the contemplated <br />transfer of 1.2 million acre-feet of water to Arizona and construction <br />of sea water conversion facilities. The major features of the revised <br />project are as follows: <br /> <br />1. Construction of Marble Canyon and Bridge Canyon Dams. <br />2. Watcr salvage and rccovery programs. <br />3. Construction of the Central Arizona Project. <br />4. Enlargement of the California Aqueduct. (An aqucduct to convey <br />water to the Imperial Irrigation District and the Coachella Valley <br />County Water District, from Cedar Springs Dam and Reservoir, to- <br />gether with additional Trinity River Basin storage or other storage, <br />and enlargement of the East Side Division of the Central Valley Project <br />to convey this amount of water to southern California, is contemplated.) <br />5. Construction of Southern Nevada Water Supply Project. <br />6. Construction of Moapa Valley Pumping Project. <br />7. Construction of Hooker Dam and Reservoir. <br />S. Construction of Dixie Project, Utah. <br />9. Construction of Indian irrigation projects. <br />10. Construction of recreation and fish and wildlife features. <br />11. Establishing a development fund. <br /> <br />Water Salvage <br />One of the major changes in the plan, as compared with the original <br />proposal, was a reduction in the water salvage and recovery programs. <br />'l'he Department of the Interior expressed the vicw in the Pacific <br />Southwest Water Plan that a great deal of the waste water recovery <br />program should be done locally. <br /> <br />Local organizations in California and Arizona have already under- <br />taken a portion of the task required to salvage waste water return <br />flows, and plans are in process for most extensive local development <br />of this water resource. This is a field in which local and state agen- <br />cies properly should contribute to the overall solution of water-defi- <br />ciency problems in the Pacific Southwest. 'l'hus, insofar as the initial <br />plan is concerned renovation of waste water is a segment of the <br />regional plan for which local and state agencies can accept a major <br />responsibility.7 <br /> <br />The remaining water salvage projects included in the revised plan <br />are primarily the Senator Wash Project (now under construction), <br />river channelization measures, phreatophyte control and ground water <br />recovery. The contemplated lining of canals along existing irrigation <br />projects has presumably been left to local agencies. However, officials <br /> <br />6 The full report, Pacific Southwest Water Plan~ January 1964, includes a discussion <br />of the features outlined in this section. <br />1 Pacific Southwest Water Plan, January 1964, op. cU., at 13. <br />