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Show PROBLEMS OF IMPERIAL VALLEY AND VICINITY. 133 Authorities.-Information is derived largely from W. R. ParkhnTs unpublished report "Uinta Basin," October, 1917, United States Reclamation Service, W. R. Drager's unpublished report, "Castle Peak project," December, 1920, United States Reclamation Service, and E. C. LaRue's "Colorado River and its Utilization," Water Supply Paper 395, 1916. ASHLEY CREEK. Unless reservoir sites can be found, the present irrigated area of 30,000 acres represents the limit of development from Ashley Creek. The total average annual flow of Ashley Creek is as follows, above diversions. Acre-feet. October to March...................•..................................... 17, 000 April.................................................................... 5, 800 May.................................................................... 32, 700 June....................................................................24,000 July..................................................................... 8, 200 August................................................................. 5, 500 September............................................................ 4,400 Total.............................................................. 97, 600 After July 1 the present irrigated lands receive on the average only six-tenths of an acre-foot of water aside from the return flow available. No large reservoir sites which are feasible are known, although some possible ones in the stream bed are mentioned in the third annual report of the United States Reclamation Service; also there are many small lakes in the headwaters which can be utilized for storage reservoirs. These lakes average about 20 acres in area and evidently neither they nor the sites just mentioned are attractive. With the advent of a railroad in the valley changed conditions may result in building reservoirs to relieve the present very sever-e late-season shortage of water. These reservoirs, if built, will serve present lands, and it is assumed here that no extension of irrigation will result. UINTA AND WHITEROCKS BASINS. The discharge of these two streams was measured for six years- 1901-1903 and 1908-1910. The average flow for those six years on the Duchesne River at My ton, Utah, is practically the same as for the 21-year period during which the Duchesne has been measured, and it is assumed that the discharge of the two streams under discussion for these six years also represents a fair average. Average recorded discharge. Uinta. Whiterocks. Total. October-April Mayl......... June.......... July.......... August....... September__ Total... A ¦'.re-feet. 69,900 .31,200 46,300 26,200 19,200 17,000 210,000 Acre-feet. 29,100 21,300 28,000 10,400 8,800 9,700 Acre-feet. 99,000 52,500 74,300 36,600 28,000 26,700 107,000 317,000 |
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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] : |