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<br />. <br /> <br />Mexico. In order to continue to use this means of administration in <br /> <br /> <br />the future, it is absolutely necessary to utilize Rio Grande Reservoir. <br /> <br /> <br />By using the Water Commissioner's daily reports, the quantities <br /> <br /> <br />of water stored in Rio Grande Reservoir were estimated. The follow- <br /> <br /> <br />ing table summarizes the water stored In each account, the water <br /> <br /> <br />allocated to the SLVID, and the water allocated to other Rio Grande <br /> <br />water users. <br /> <br /> Allocation <br /> to other <br /> Rio Grande <br /> SLVID Storage Compact Allocation Water Users <br />Year In-Priority (AF) Storage (AF) to SLVI D (AF) (AF) . <br />1979 17,000 29,000 31,500 14,500 <br />1980 5,000 15,000 12,500 7,500 <br />1981 7,000 14,000 14,000 7,000 <br />Total 29,000 58,000 58,000 29,000 <br /> <br />. <br /> <br />From the total allocations of water, the Rio Grande water users other <br /> <br /> <br />than the SLVID received 50 percent of the benefits of compact water <br /> <br /> <br />that was stored and 33 percent of all water stored and allocated as <br /> <br /> <br />shown in the above table. With continued experience in utilizing the <br /> <br /> <br />reservoi'r for Compact administration purposes, we would anticipate <br /> <br /> <br />that the Rio Grande water users other than the SLVID would receive an <br /> <br /> <br />average benefit of approximately 40 percent of the total water allo- <br /> <br /> <br />cated. <br /> <br /> <br />By agreement between the SLVID, the Rio Grande Water Users <br /> <br /> <br />Association and the State Engineer, the Compact water that is stored <br /> <br /> <br />is considered the top water in the reservoir which would be the first <br /> <br /> <br />to spill. Therefore, especially during wet years, any reduction in <br /> <br /> <br />usable storage capacity of the reservoir could jeopardize the water <br /> <br /> <br />stored for Compact purposes. <br /> <br /> <br />During the years 1979 through 1981, an average annual quantity <br /> <br /> <br />of 19,000 acre-feet was stored for Compact purposes. The quantity <br /> <br /> <br />stored in 1979 was limited by the capacity of the reservoir. During <br /> <br />. <br /> <br />-36- <br />