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<br />'ll <br />II <br />]1 <br />II <br />II <br /> <br />Summary <br /> <br />receives only part of what is considered a full water supply. The combination of <br />sprinkler and improved surface irrigation will provide a full water supply to <br />more acres by improving the efficiency of water use. <br /> <br />Features and accomplishments of the preferred plan-the Resource Protection <br />(RP) Plan-are described below and are shown in an accompanying table, along <br />with those of the sprinkler-only, or National Economic Development (NED) and <br />no action alternatives. <br /> <br />RESOURCE PROTECTION PLAN <br /> <br />I' <br />" <br /> <br />The preferred plan would include the installation of sprinkler irrigation <br />systems, improved surface irrigation and irrigation water management, and the <br />elimination of water from all open conveyance systems in the project area <br />during the winter (nonirrigation) season, as noted earlier. <br /> <br /> <br />I <br /> <br />Sprinkler irrigation systems improvements would involve, but would not be <br />limited to, diversion works from main canal systems, onfarm buried pipes, <br />pumps, motors, sprinkler systems, and off-farm buried pipe laterals that would <br />provide gravity pressure to the onfarm system. A significant participation rate <br />for each lateral would be required before Reclamation and SCS would initiate <br />the design of piped laterals. <br /> <br />The improved surface irrigation system would include such facilities and <br />treatments as water measuring devices, water control structures, land leveling, <br />pipelines, gated pipe, borders, automated water control valves, and tail water <br />recovery systems. Methods could include furrow, corrugation, contour, or <br />border irrigation. <br /> <br />Irrigation water management would be required for both alternatives. <br />Technical and cost-sharing assistance would be provided to individual water <br />users, irrigation companies, and groups to install needed system improvements. <br />Technical assistance would include working with irrigation companies to <br />improve management of irrigation water delivery and, in some cases, assisting <br />them in converting from a fixed-schedule delivery to demand delivery of <br />irrigation water. Individual assistance would be provided to each water user <br />to evaluate and modify present irrigation methods and other management <br />practices to achieve improved irrigation efficiencies and resource management <br />skills. <br /> <br />A total of approximately 156 miles of open, unlined waterways, primarily <br />laterals, are projected to be eliminated under the preferred plan. <br /> <br />! <br />ii' <br />, <br />I <br /> <br />The elimination of winter water would be accomplished by expanding domestic <br />systems to replace 213 existing stockwater ponds, lining 83 stock ponds, and <br />constructing a 1O.6-mile pipeline to deliver raw water to underutilized <br /> <br />00C428 <br /> <br />S-6 <br />