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• <br /> is".. <br /> 11 <br /> the storage used by the model was 27.4 MAF and the average shortage was 5.7 per- <br /> cent. When adjustments are made to account for the differences between deple- <br /> tion levels and storage used, the difference in shortages amount to less than 2 <br /> percent. <br /> The CRSS model verification runs 1 and 2 are valuable indicators that the <br /> storage yields in the Upper Basin, when stressed, can still meet the necessary <br /> depletion levels and remain within tolerable shortages. Several model runs were <br /> made with varied releases (7.5 MAF and 8.23 MAF), with bank storage release, no <br /> constraints on active storage, etc. Each time, the depletion level reached in . <br /> r• <br /> the two methods were within about 1 1/2 percent of one another. �. <br /> 3. Water Supply Physically Available <br /> Based on projected depletions, there remains 1,008,000; 348,000; 153,000; and <br /> 94,000 acre-feet of available water within the 5.8 million acre-foot limit in <br /> the Upper Basin in year 1990; 2000; 2010; and 2020; respectively. The 5.8 R. <br /> million acre-foot annual Upper Basin depletion is projected to be reached by the �* <br /> F' <br /> year 2040. Therefore, there is likely to be unused water in other Upper Basin <br /> States, principally Utah and Wyoming, that could be used on an interim basis by <br /> the State of New Mexico. <br /> In connection with the Gallup-Navajo Indian Water Supply Project, the Southwest <br /> Region has prepared an analysis of the actual water that could be diverted from <br /> r• <br /> the San Juan River (upstream from Bluff, Utah to Navajo Reservoir) utilizing the <br /> storage capacity of Navajo Reservoir for the period 1929-1974. The EAR Center <br /> and the Upper Colorado Region concur with this analysis. The demands were based <br /> k <br /> rift <br /> on year 2030 projections identified as of 1980. The operation studies indicated <br /> r' <br /> F'. <br />