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<br />. <br />OU(.114 <br /> <br />.' <br /> <br />valley in the National Higratory Bird Program. It includes measures <br />for development of the optimum fish and wildlife and recreation bene- <br />fits. It would authorize development of the proposed Mishak Lakes and <br />A!amosa National Wildlife Refuges. the former as a part of the project <br />construction. <br /> <br />.. <br /> <br />The plan provides for maintaining. by year-round pumping, <br />ground-water levels at least 8 feet below the ground surface over <br />selected areas totaling about 108,600 acres, with resultant water sal- <br />vage of about 86.500 acre-feet annually. An average 15,200 acre-feet <br />also would be salvaged annually by providing outlets for surface waters. <br />The hydrologic analyses indicate that, under the plan and on the basis <br />of records to date, delivery of salvaged water to the Compact station <br />at Lobatos over a 35-year period would permit Colorado to achieve a <br />debit-free Compact status; but no firm forecast of the period which <br />would be required can be made. The studies further indicate that, at <br />the end of that period. unless Colorado.s ability to deliver Rio Grande <br />flows has improved, an average of 59,200 acre-feet annually of the sal- <br />vaged water would be required to maintain Colorado in debit-free status. <br /> <br />The locations of the adopted water salvage areas, the pro- <br />posed Mishak Lakes and Alamosa National Nildlife Refuges and the primary <br />features of the water salvage plan, are indicated on the perspective <br />Drawing 253-504-1829. <br /> <br />The water salvage plan would include the following features: <br /> <br />1. About 129 deep wells and pumping plants located through- <br />out the water salvage areas, each having continuous water yields aver- <br />aging from 0.5 c.f.s. to 3.5 c.f.s. Transmission lines, substations, <br />and other facilities required for operation of the pumping plants and <br />control of the pumping operations. About 110 miles of transmission <br />lines would be required. <br /> <br />2. A Main Conveyance Channel about 44 miles long, beginning <br />at the east boundary of the proposed Mishak Lakes National Wildlife <br />Refuge and running southeasterly to the west side of San Luis Lake and <br />then south to the Rio Grande. The Main Conveyance Channel would have <br />a design capacity of 34 c.f.s. at the upper end, increase in size to <br />158 c.f.s. near San Luis Lake, have that capacity to the junction with <br />the East Side conveyance Channel near U. S. Highway 160, and have a <br />capacity of 210 c.f.s. from the junction to its outlet into the Rio <br />Grande. <br /> <br />3. A channel about one-half mile long to connect the l~in <br />Conveyance Channel with San Luis Lake to permit maintenance of the lake <br />at essentially a constant level for fish and wildlife and recreation <br /> <br />3 <br />