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State Water Laws, Policies, and Administration <br /> Wyoming water users have the right to use all water remaining in the <br /> Laramie River and its tributaries after Colorado's diversions. <br /> North Platte River Litigation - Nebraska vs. Wyoming, 325 U.S. 589, 1954 <br /> The U.S. Supreme Court decision divided the water of the North Platte <br /> River between the States of Colorado, Wyoming, and Nebraska. Under the <br /> division, Colorado may irrigate up to 145,000 acres of land in Jackson County. <br /> Colorado, during any one irrigation season may store up to 17,000 acre-feet <br /> of water for irrigation purposes during the water year. Colorado also may export <br /> up to 60,000 acre-feet of water in any period of ten consecutive years from the <br /> basin of the North Platte River. <br /> Costilla Creek Compact, 1963 <br /> This compact apportions the waters of Costilla Creek between Colorado <br /> and New Mexico. Costilla Creek, a tributary of the Rio Grande, begins on the <br /> west slope of the Sangre de Cristo Range and crosses the State boundary three <br /> times above its confluence with the Rio Grande in New Mexico. Article IV of the <br /> compact provides for the apportionment of the natural flow of Costilla Creek, the <br /> allocation of water from Costilla Reservoir and Eastdale Reservoir. <br /> Animas-La Plata Project Compact, 1963 <br /> The Animas-La Plata Project Compact has been entered into to clarify <br /> the relationships between Colorado and New Mexico water users on the Animas- <br /> La Plata Project authorized by Public Law 90-537. <br /> The compact sets the priority of the New Mexico water users of the <br /> Animas-La Plata Project water equal to the priority of the Colorado water users <br /> who take water from the same project. <br /> 2.19 <br />