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Show PART VI FRAMEWORK PLAN AND ALTERNATIVES States' Alternative-Water Supply Available at Site ______________(9.kk MAF depletions)______________ Development -which would be possible if the states of the Upper Colo- rado Region utilize water which would be physically available at site of project development is described briefly below. There has been no agree- ment between the states or within the states that this can be accomplished in the way indicated, but rather this discussion indicates utilization of water that is physically available for development. It is contemplated that there would be shifts between types of use as the needs develop. The plan would require substantial augmentation to meet Colorado River Compact requirements for delivery at Lee Ferry. If the Colorado River is aug- mented below Lake Powell, exchange arrangements would have to be made. Proper consideration of possible detriment to power revenues and of aug- mentation costs will be required. Additional uses of 1.28 million acre-feet above the 8.16 million acre-foot level are described briefly by state, and summaries for total uses are shown in Table 19. Colorado has identified additional uses by 2020, which would in- crease export to the eastern slope of the Rocky Mountains by 113,000 acre- feet annually and increase irrigation use by 69?OOO acre-feet, primarily in the Upper Main Stem Sub region. New Mexico water depletions would increase 228,900 acre-feet, pri- marily for electric power, irrigation, and export to the Rio Grande Basin. Additional developments in Utah would all occur in the period 2001-20. Irrigation projects not previously incorporated in plans would require over 200,000 acre-feet of water; coal conversion would double and require 22,300 acre-feet more water; and a 100,000 addition would be ex- ported to the Great Basin Region. Project depletions of the Colorado River system by Wyoming total 1,588,000 acre-feet, which is 5*4-5,000 acre-feet more than at the 8.l6 million acre-foot level of development. Increases in depletions occur primarily in mineral production and export. 1968 OBERS Early- study of the 1968 OBERS projections, as published for agri- culture, revealed inconsistencies that were incompatible with the history of agricultural production in the Upper Colorado Region. The primary de- parture fr*om established practice was the projected source of livestock feed required to meet the livestock production assigned to the region by 90 |