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<br />Plan Three _ Onfarm Ditch Lining - Minimum Level - on 35,800 Acres <br />of Selected Area <br /> <br />This plan assumes implementation of onfarm ditch lining or pipeline <br />at the minimum level for those watersheds having individual economic feasibility <br />based on total benefits. The irrigated area targeted for improvement is 35,800 <br />acres in Watersheds 1, 3, 8, 9, 16 and 20. <br /> <br />The onfarm portion of this plan can be implemented at a one-time construction <br />cost of $25,006,000. Technical assistance and administrative costs, estimated <br />to be $4,994,000, make a total installation cost of $30,000,000. Including <br />the 103 miles of off-farm lateral improvements adds $13,800,000 to the construc- <br />tion cost and $2,800,000 to the cost of technical assistance and administration, <br />making a total installation cost of $46,600,000. <br /> <br />The 95,000 ton reduction in salt loading represents a 22 percent reduction in <br />the total salt load being delivered to the Colorado River. Adding the off-farm <br />laterals with this plan will increase the potential salt load reduction by <br />45,000 tons, making a total of 140,000 tons. <br /> <br />Implementation of this plan will impact on an estimated 1,300 acres of wetlands <br />within the area targeted for improvement, or about 4.1 percent of the total <br />wetlands in the Lower Gunnison Unit. Full mitigation for the impacted habitat, <br />estimated to cost $6,100,000, would require upgrading the habitat value on <br />3,000 acres of wetlands elsewhere in the valley undisturbed by implementing <br />this plan. <br /> <br /> <br />IV-8 <br /> <br />I <br /> <br />I <br /> <br />I <br />I <br />I <br /> <br />I <br />I <br /> <br />. . <br />