OCR Text |
Show B. WATER SUPPLY (ii,) Present irrigation uses. Arizona's present annual uses of water from the Colorado River system for irrigation are summarized as follows: Little Colorado River Basin 59*000 acre-feet Virgin River and Kanab Creek Basins 5,000 acre-feet Williams River Basin 3,000 acre-feet Gila River Basin 1,135,000 acre-feet Colorado River Indian Reservation 15,000 acre-feet Gila Project 3^,000 acre-feet Yuma Project 157,000 acre-feet Total 1,^08,000 acre-feet (iii.) Potential irrigation uses. There are potential irrigation projects in Arizona other than the Central Arizona Project which could increase the foregoing depletions. The3e include such developments as the Snowflake Project, Colorado River Indian Reservation, Gila Project, Hassayampa Project, etc., which are recognized as potential units in a basin-wide plan of development. Summarizing such potential developments and contemplated expansion of projects now under construction, the total yearly increased depletions are computed as follovs: Snowflake Project 10,000 acre-feet Hurricane Project 12,000 acre-feet Hassayanlpa Project 20,000 acre-feet Colorado River Indian Reservation 285,000 acre-feet Gila Project 566,000 acre-feet Unassigned waters 3*1,000 acre-feet Total 92?,OOO acre-feet (iv.) Colorado River water available for the Central Arizona Project. With depletions due to reservoir oveporation, and to present and potential irrigation uses thus determined, the following summary derives that portion of Arizona's share of the Colorado River which, under ultimate conditions, would be available for the Central Arizona Project. Acre,-feet a year Total available for Arizona 3,725,000 Less: Reservoir losses (Arizona's share) 313,000 Present irrigation depletion 1,1+08,000 Future irrigation depletion 927,000 Subtotal 2,61+8,000 Water available for the Central Arizona Project from the Colorado River 1,077,000 B-66 |
Source |
Original book: [State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California, defendants, United States of America, State of Nevada, State of New Mexico, State of Utah, interveners] : |