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. . . . B. Changes in the rate of istallation of salinity reduction features over the planned rate. Each of the g sub-units in the Uintah Basin project area were evaluated to determine any significant deviation from the selected plan. All units with the exception of the Whiterocks-East Uintah unit are consistently being installed as predicted by the selected plan. Whiterocks-East Uintah unit is being implemented at a level higher than the selected plan which will result in an increased salt load reduction of 5,700 tons of salt per year. This increase in salt load reduction is a result of treating approximately 5900 acres of irrigated cropland in excess of the acres identified in the selected plan. The Uintah Basin plan is amended to reflect this change. C. Salvage Water/Undiverted Water The Uintah Basin Plan as originally prepared included an off-site salinity dilution benefit value to salvaged water of 2.35 mg/l at Imperial Dam. To bring the Uintah Basin plan into compliance with presently accepted policy, salvaged water is given a value based on the monitary value of similar water used for agricultural purposes in the Uintah Basin. Dilution benefits are eliminated. D. Update of Project Costs and Benefit Values. The Uintah Basin Plan is amended to display cost and benefit values using January 1986 dollars and 8 5/8% discount rate in computing those values. IV. Changed Value for the USDA Uintah Basin Salinity Control Plan. Adjustments in Salt Reduction Uinta Basin Plan Salt Reduction Total Salt Load Reduction 76,600 tons/year 15,900 tons/year 5,700 tons/year 98,200 tons/year On-farm Improvements on 122,200 acres Lateral Improvements Treatment of additional 5900 ac. in Whiterock-East Uintah OUC607 -4-