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<br />t,;") <br />L") <br />.:::.; <br />...-4 <br /> <br />"~ <br /> <br />C:' <br /> <br />12 <br /> <br />a. <br /> <br />Consider utilization.of new and improved water distribution <br />systems and water management methods as im?rovement oppor- <br />tunities. <br /> <br />b. Consider utilization of new and improved clutural manage- <br />ment methods. <br /> <br />c. Consider research and demonstration project needs relating <br />to irrigation system and cultural management improvement. <br /> <br />2. Evaluate present and the potential to improve la.teral and on- <br />farm irrigation systems. <br /> <br />a. Inventory and compile data on present lateral and on-farm <br />irrigation systems. <br /> <br />(1) Type of distribution system being utilized and general <br />condition. <br /> <br />(2) Water deliveries by quantity and management. <br /> <br />(3) Method of irrigation and length of runs. <br /> <br />(4) Crops irrigated by soil class. <br />(5) Water use efficiencies with determinatjons for: <br /> <br />(a) Quantity of return flows, and <br /> <br />(b) Quantity of deep percolation. <br /> <br />b. Consider irrigation system improvement needs and oppc,rtunities <br />and evaluate effects of improvements. <br /> <br />(1) Distribution system rehabilitation or change. <br /> <br />(2) Delivery and system management change. <br /> <br />(3) Irrigation methods -- Reference: Irrigacion Guide or <br />suggested improvements to the Guide. <br /> <br />(4) Increased water use efficiencies due to improvements. <br /> <br />(a) Consider total or complete (100 percent) level of <br />system improvements. <br /> <br />(b) Consider practical, social, and economic improve- <br />ment level. <br />