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. "'..... i'\) <:.~ ~..:: . . ~\7ICIPATED EFFECTS OF ADDITIONAL DEVELOPMENTS River ~ill supply irrigated lands. to he depleted by 440 acres of new land and 3,640 acres of presently Approximately 15,000 acre-feet of water is anticipated this project. Oil Shale Prototype Development.--It is estimated that oil shale development would require 78,000 acre-feet in Colorado and 24,000 acre-feet in Utah by 1990. It was also estimated that the heavy use of water would not occur until about mid-1980's and by 1990 the total 102,000 acre-feet would be required. 5. Above San Rafael River near Green River, Utah. Utah Power and Light, Emery County.--The anticipated future effects on the San Rafael River would be steam-electric plants depleting about 21,000 acre-feet of water and replacing an estimated 5,000 acres of presently irrigated lands with industries. The salt was assumed to be depleted with the water. The Huntington powerplant started 1- unit in 1975 and another is scheduled in 1977. The Emery County powerplant is now under construction and the first unit is scheduled for June 1978. 6. Above Colorado River near Glenwood Springs Denver) Englewood, Colorado Springs, and Pueblo, Colorado.--Expan- sian of municipal supplies for these four cities will eventually deplete the Colorado River by 235,000 acre-feet above present uses. These are transmountain diversions from the Blue, Fraser, and Eagle Rivers in the headwaters of the Colorado River. The diversions would vary according to runoff each year. M&I--Green Mountain.--Most of the water stored in Green Mountain Reservoir will probably be released for industrial use in the vicinity of Rifle, in Garfield County, Colorado. This depletion will ultimately be about 45,000 acre-feet. Homestake Project, Colorado.--The Homestake Project in Colorado, constructed by the cities of Aurora and Colorado Springs, will ultimately divert an additional average annual amount of 49,000 acre-feet to the eastern slope from the headwaters of the Colorado River although the diversions will vary from year to year. Present diversions amount to about 25,000 acre-feet. 7. Between Colorado River near Glenwood Springs and Colorado River near Cameo Independence Pass.--This water is diverted from the upper Roaring Fork to the east slopes of the Rocky Mountains. The present depletions will ulti~ately be increased by an additional 7,000 acre-feet. 52