OCR Text |
Show probably because of a combination of poorly kept drains and the presence of practically imperrious clay in places, the water table is less than six feet below the surface in such of this area. It is apparent that further drainage should be provided. Where the underground water stands seven feet or less below the surface, salt accumulations are evident in all places where the surface is not shaded sufficiently to prevent rapid evaporation. The water table in parts of sections 34 and 35, T. 9 N., R. 21 W., and in sections 3, U, 9, 10, 13 and 16, T. 8 N., R. 21 W., ranges frosi two to six feet below the surface. It is apparent that water in that district seeps fro* the Colorado River. It is believed that during the next few years the river bottom in the vicinity of Parker and for several miles south of Parker will be scoured and cut several feet below its present level. If this occurs, it probably will eliminate the need for artificial drainage in this area.. If the river channel is scoured deeper for several Miles below Parker and fills to any marked degree near the lower end of the reservation, water table conditions near the lower end probably will become worse. It is possible that the river will change its course to the east and spread out over Much of the land in Township 4. When 35,000 second-feet of water was flowing past Parker in May, 1941, water left the river channel in the northeastern part of section 27, T. 4 N., R. 22 W. and spread out over much of the lower portion of the reservation. When the flow was 50,000 second-feet, it was reported by local Indians that water also left the channel in the northeastern part of section 14, T. 4 N., R. 22 W. If appreciable filling occurs near these points levee work would be required to confine the river to its channel and to prevent the flooding of reservation land. Following the development and irrigation of extensive areas in the project it is expected that the underground water table will rise in many parts of the area and that artificial drainage will become necessary in several districts. - 9 - |
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] : |