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<br />Chapter 4 <br /> <br />Minerals-Considerable development of the trona, oil, and natural gas industries has occurred in <br />the Green River Basin since the Comprehensive Framework Study was made. The Wyoming State <br />Engineer projects that depletions wilI increase. FS Industries' contract with the State of Wyoming <br />provides water from the State's storage in Fontenelle Reservoir for use in a phosphate fertilizer <br />plant. A slurry pipeline carries phosphate ore from the mining area near Vernal, Utah, to the plant <br />near Rock Springs, Wyoming. The slurry water is used and reused as process water. <br /> <br />Projections of industrial uses beyond the year 2000 are largely arbitrary, and the figures provided <br />should be used with caution. No attempt has been made to predict individual industrial uses. <br /> <br />New Mexico <br /> <br />Adjusted Comprehensive Framework Study-Several water uses listed in table 3 were included <br />in the Comprehensive Framework Study. The Comprehensive Framework Study values in the <br />table were adjusted by subtracting out the following values to avoid double accounting: Navajo <br />Reservoir evaporation, 26,000 acre-feet; Hammond Project irrigation, 10,000 acre-feet; and Four <br />Comers Powerplant, 16,000 acre-feet. <br /> <br />1966-90 Changes-These are depletions that have come into being since the Comprehensive <br />Framework Study estimates were prepared. These include 5,000 acre-feet of private rights <br />developed for municipal and industrial purposes. Values shown were provided by the <br />New Mexico Interstate Stream Commission. <br /> <br />Navajo Reservoir Evaporation-Reservoir evaporation is based upon a Colorado River Storage <br />Project study made in 1973. <br /> <br />Animas-La Plata Project (Colorado-New Mexico)-See the discussion of the Animas-La Plata <br />Project in the "Colorado" section. <br /> <br />San Juan-Cherne Pr'cj~ct-Thc Sun Juan-Chama Project was auihurized by Pubiic Law 87-483. <br />Transbasin diversions began in 197 I. The May 1957 Supplemental Project Report indicates that <br />diversions are expected to average about 110,000 acre-feet a year, although more recent hydrologic <br />studies performed by the Southwest Regional Office indicate that the long-term average annual <br />yield may be closer to 104,000 acre-feet. For purposes of this report, 110,000 acre-feet have been <br />selected as the level of existing and future average depletio~s. <br /> <br />Navajo Indian Irrigation Project-Various estimates for projected agricultural use depletions <br />have been prepared, including the studies for the all-sprinkler irrigation system for the Navajo <br />Indian Irrigation Project prepared by the Southwest Region of the Bureau of Reclamation. This <br />study estimated agricultural consumptive use of 226,000 acre-feet. Several other estimates have <br />been made, and a 5-year field study was made to dt:termine actual consumptive use on the project. <br />Technical estimates reported by the Secretary's report, Economic Study, May 1980, are 254,000 <br />acre-feet for agricultural depletions. <br /> <br />The State of New Mexico has stated that the projected depletion estimates for the NIIP under full <br />project development will not reach 267,000 acre-feet and that a more reasonable estimate of the <br /> <br />28 <br />