OCR Text |
Show PART XII ALTERNATIVE LEVELS OF DEVELOPMENT Utah indicated that a much greater portion of its potential thermal pover production be included and added 11,700 megawatts with a support population of 26,000 people. Utah also added an oil shale development of 500,000 barrels per day with a support population of 39,000 people. In order to stay within its 23 percent allotment Utah revised downward its irrigation acreage (-10,500 acres) and likewise revised downward (-200,000 acre-feet annually) its export to the Bonneville Basin. Colorado varied its irrigated land acreages and water depletions as follows: 18,000 less acres depleting 88,000 acre-feet less water in 1980, 80,000 more acres depleting 145,000 acre-feet more in 2000, and 6,500 more acres depleting 31,500 acre-feet more in 2020. An oil shale development of one million barrels per day, with a support population of 78,000 depleting 97,000 acre-feet annually, was added. A coal by-products plant using 15,000 acre-feet and a potash plant, capacity 1.5 million tons annually, using 9,500 acre-feet annually are planned. Exports are increased by 2,400 acre-feet and fish and wildlife by 600 acre-feet annually. It appears that Colorado will deplete its 51.75 percent allotment by the year 2000. Electrical power production is decreased by 9,690 MW from regionally interpreted OBERS, depleting 146,400 acre-feet less annually. in addition, 22,100 acre-feet of irrigation water will be transferred between 2001 and 2020 to meet municipal and industrial requirements. New Mexico, in order to stay within its 11.25 percent of the 6.5 m.a.f. level of development in 2020, it was necessary to reduce the regionally interpreted OBERS use by a net of 9,500 a.f. annually. Major changes include a reduction of (1) 51,200 a.f. resulting from an arbitrary reduction in installed generating capacity in fuel burning powerplants, (2) an increase of 29,900 a.f. in mineral production, and (3) an additional municipal and industrial water use of 11,800 a.f. annually to supply a population increase of 64,500 persons. Summaries of Proposed Uses Table 14 enumerates water depletions by States, subregions, types of uses, and by time frames 1980, 2000, and 2020. Table 15 summarizes water supply depletions, modified flow, and residual outflow by sub- regions. 57 |