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'"/-,< < 030:184 WATER SUPpLY FOR TIlE S~ JUAN-CIIAMA PROJEIC'J' 9 LaPlata,proj~9tdemands. With the storage planned for the Animas- La Plata project, the Bureau's studies indicate shortages ov~r the 25-year period averaging 5.6 percent of the diversion demand. The annual percentages for the entire period were furnished for the record. The shortages go as high as 49.7 percent in 1 year, with the next highest shortage being 25.3 percent, followed by 17.7, 16.1, 11.4, and 11.1 percent. The Bureau testified that these shortages were tolerable. The Bureau testified that there is no conflict between the Animas- La Plata project and the San Juan-Ohama and Navajo projects, and that the Animas-La Plata project would be benefited by the operation of the Navajo Reservoir. In the preliminary studies the Bureau assumed that water rights in New Mexico located below tbe confluence of the Animas and San Juan Rivers would be supplied entirely from return flows, waste water, and surplus water and there would be no demand on the Animas River. More recent studies indicate an average annual demand of approximately 11,000 acre-feet annually. The Bureau indicated there was agreement among the Federal Government, New Mexico, and Oolorado that the Navajo Reservoir would be operated for the regulation of the San Juan River for the benefit of all the upper basin States. ' New Mexico's studies and position Mr, S. E. Reynolds, State engineer of New Mexico, testified that in his view there will be ample water at sites of use, and within New Mexico's allocation under the Oolorado River and upper Oolorado River compacts, for the San Juan-Ohama project, the Navajo project, and the New Mexico portion of the Animas-La Plata project with a substantial amount of water remaining for future uses. Mr. Reyn- old's testimony regarding the physical availability of water in the San Juan Basin is based upon Navajo Reservoir Operation Study No.8, which he has submitted for the record of the hearings. This study covers the period 1928 to 1959. The study is based upon the re- corded and estimated flows of the San Juan River at Blanco which for the period of study averaged 981,400 acre-feet annually. The study assumes future depletions for the proposed Pine River extension proj- ect averaging 62,200 acre,-feet annually and depletions for the author- ized Weminuche diversion project averaging 18,100 acre-feet annually, resulting in residual flow at Blanco averaging 901,100 acre-feet ,an- nually. The study assumes diversions for the San Juan-Ohama proj- ect averaging 103,400 acre-feet annually, releases for the Hammond project averaging 21,600 acre-feet annually, releases for the Navajo project averaging 478,700 acre-feet annually, and releases for future municipal and industrial use averaging 210,000 acre-feet annually. Reservoir evaporation is estimated to average 32,000 acre-feet an- nually and the study indicated spills averaging 79,800 acre-feet an- nually. The study also shows expected shortages which would aver- age 0.8 percent for the San Juan"Ohama project, 1.4 percent for the Hammond project, 29.3 percent for the Navajo project, 14 percent for the future municipal and industrial water supply, and an overall average shortage of 5.9 percent. The study assumes that return flow from existing uses, return flow from uses served from Navajo Reserc voir, and tributary inflows below Navajo Dam would meet the de- mands of existing rights below Farmington. The study also assumes that Navajo Reservoir would be full at the start of the study period i;"