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<br />c. Recent Water Supply Studies: Major Conclusions <br />1. u.S. Enviornmental Protection Agency (EPA) <br /> <br />Depending on technologies and sites chosen, <br />western energy resource development may create <br />local and possibly regional water shortages. <br />On a basin-wide level, the most severe <br />problems are likely to occur in the Upper <br />Colorado River Basin. When energy require- <br />ments for water are added to non-energy <br />requirements for the year 2000, the total may <br />exceed minimum availability estimates by as <br />much as one million acre-feet per year. Even <br />using the most optimistic combination of these <br />estimates of water requirements and availabi- <br />lity, energy resources development will con- <br />sume a large percentage of available surface <br />water, and thus, heighten existing conflicts <br />over appropriate water uses. <br /> <br />u.s. EPA, "Energy from the West: Policy <br />Analysis Report", March 1979, at 87-88. <br /> <br />11- - <br /> <br />... <br />III 15 15 <br />Q <br />>- <br />... <br />41 <br />4:lo <br />.... 10 10 <br />41 <br /><II <br />lo. <br />I <br />Q <br />... <br />U <br />.c 5 5 <br />c <br />0_ <br />.... ,.. <br />"'lo. <br />::~ <br />:&- <br /> <br /> <br /> <br />1922 <br />Compact <br /> <br />Lake <br />Powell <br /> <br />Minimum <br /> <br />Maximum <br /> <br />Avai labi li ty <br /> <br />Requirements <br /> <br />Fiqure 4ES-2: <br /> <br />Projections of Water Requirements and <br />Availability in Colorado Niver - Year 2000 <br /> <br />" .... <br /> <br />I! <br /> <br />;- <br /> <br />Ibid., at 88. <br /> <br />-4- <br /> <br />.:'/ <br /> <br />, <br />