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Show 172 PROBLEMS OF IMPERIAL VALLEY AND VICINITY. The Woodruff site on the Little Colorado embraces the town of V^oodruff, which would be submerged if the reservoir were built. As it is immediately below the Forks site, which is better and which will control the river, it also may be eliminated. Tucker Flats reservoir site will give opportunity to store the winter discharge of the Puerco, which otherwise would be lost with the elimination of the La Roux. All reservoir sites will eventually fill with silt. Water supply.-May total about 200,000 acre-feet annually, judging from the meager records, and about 400,000 acre-feet of reservoir capacity is available to control it. About 1,200 acres are irrigated now, which have prior draft on the water supply. Some pumping from ground water is now being done, and it may be possible to extend this, but water-bearing strata do not exist in large parts of the valley. From the meager data it is difficult to estimate ultimate irrigation, but for this report it is assumed to be 40,000 acres in addition to the present. GREEN RIVER PROJECT, UTAH. Area, gross, 240,000 acres; net, assumed 150,000 acres. Temperature, mean annual, 52°. Precipitation, mean annual, 9 inches; irrigation season, 5 inches. Elevation, 4,000 to 4,600 feet. Transportation, Denver and Rio Grande Railroad. Between frosts (summer), 180 days. Project is covered by Utah Carey Act segregation No. 10 by Green River Canal Co. This company has relinquished its rights and the project is now being investigated by the Reclamation Service. Irrigation plan.-As proposed by the company, diversion dam 230 feet high on Green River just below mouth of Coal Creek. Outlet at 200 foot level giving 102,000 acre-feet of storage. Main canal to follow west side of the canyon 13 miles through difficult construction, requiring ditch lining, four tunnels, and a double 8-foot siphon across Price River. Below this are required 100 miles of main carriage canals and a siphon across Green River. Irrigable lands lie on both sides of Green River, with the larger part on the west side. The land lies in uniform slopes, and some artificial drainage will be required. Soil ranges from sandy loam to adobe. Large differences of opinion exist as to the amount 'of irrigable land, estimates ranging from 45,000 up. Consumptive use of water is estimated to be 2 feet in depth on irrigated land. Duty of water [Acre-feet.] Per acre. 150,000 acres. Per acre. 150,000 acres. April.. May... June... July... August 0.20 .40 .80 .90 .90 30,000 60,000 120,000 135,000 135,000 September. October___ a 50 .30 75,000 45,000 4.00 600,000 |
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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] : |