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Show 110 PROBLEMS OF IMPERIAL VALLEY AND VICINITY. 3. Additional lands under projects on which no construction work has been done and for which local water supply is sufficient: Green River Carey Act................................. 94,000 Uinta-Fremont Carey Act___........................... 11,000 La Barge............................................... 3,000 Fontanelle............................................. 4,000 Total.................................,............... 112,000 Without Green River Carey Act, project of 94,000 acres............... 18,000> 4. Miscellaneous individual rights....................................... 60,000- Total......................................................... 430,100a As the Green River project is large and as analysis for its water supply fits in well with the Seedskadee, it is omitted from the foregoing and placed in the following list: Additional projects outlined by Wyoming cooperative survey, 1918, and Stubble-field survey, 1918: Gross acreage. Bonneville project....................................................... 610, 000- Small Seedskadee....................................................... 50, 000- Large Seedskadee...................................................... 190,000 Big Piney-La Barge.................................................... 15,000 Green River (see previous list)........................................... 117, 000 Total............................................................. 982, OOtt The above list outlines the gross acreage covered by surveys. It vastly exceeds the net irrigable acreage. WATER SUPPLY. The diversion for all projects past and future is taken at 2.5 acre-feet per acre. As the climate is very dry, consumption of water is-taken at 1,5 acre-feet per acre, with a return flow oi 1 foot. As the irrigation season is only 105 days, the amount of return flow which can be used again is small, as there are no reservoir sites for storing it. The change which will take place in discharge of the stream at Green River by irrigation above is estimated to be as follows per acre of land irrigated. The demand or diversion is in accordance with present practice and the percentage of return flow each month the same as on the Shoshone project, Wyoming, which project ha& a climate somewhat similar to Green River Basin, although warmer. Acre-feet per acre. Diversion. Return. Change. Sept.-May 15, May 15-31___ June.......... July.......... August....... Total. 0.25 .92 .92 .40 2.50 0.60 .08 .11 .14 .07 1.00 +0.60 - .17 - .81 - .78 - .33 . 1.50 |
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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] : |