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<br />~ <br /> <br />~ <br /> <br />:)00217 <br /> <br />June 17" 1948 <br /> <br />MEMORANDUM TO COLORADO AND NEIl' MEXICO <br />(J. R. Riter) <br /> <br />Subject! Alloca.tion of ~.;;te.tt fl"'om Saii Juan Rivei" 8J110Ttg Stiites: of <br /> <br />Colorado and New Mexico <br /> <br />1. The engineer conunittee has not yet agreed on the magnitude of <br /> <br />the presen1l. uses; of San Juan River water. Whatever these uses are they <br /> <br />are reflected in the presen1l. streamflow records. The engineer conunittee <br /> <br />will meet and agree on present uses. At the meeting today, it is. hoped <br /> <br />that a formula can be agreed upom for division of the remaining unused! <br /> <br />water. <br /> <br />2. If' it be assumed that sui'ficien1l. water will be made available <br /> <br />for the development of the 117,000 acres in the Shiprock Project, as <br /> <br />prepared by the Indians, and if it be further assumed that the Hammond <br />Project (New Mexic~) be c!evelopec!', one bottleneck for future clevelopment <br />will be the flClVi available ,at Blanco, New Mexico. The long time average <br />flow (1914~194S) at ,Blanco is 1,260,000 acre feet. In the critical <br />period (1929 to 1940 inClusive) the average flow is 1.,,020,000 acre feet. <br /> <br />The total diversion requirements by the Ship rock Project and the Hammond <br />Project are el!itimated to be about. 600,000 acre feet annually, leaving <br /> <br />420,000 acre feet annually to be consumed' upstream from Blanco. This. <br />is considerably less than the Burell,ul$ estimate of potential uses up- <br /> <br />stream from Blanco as follows: <br />