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The 1140 acres of land that is presently irrigated from the 1170 acre-foot Red Mesa Reservoir <br /> and the Freed, Vossberg, and Revival Ditches diversions, receives an average of about 2190 <br /> acre-feet per year including 101.9 acre-feet of evaporation and 2088 acre-feet diverted into the <br /> ditches, which is 49% of the ideal irrigation diversion requirement of 4264 acre-feet. The <br /> existing annual irrigation depletion is based on 1140 acres receiving a 49% supply with a <br /> consumptive use rate of 1.97 acre-feet per acre;which results in 1,100 acre-feet. <br /> The total existing depletion is 1,202 acre-feet, 101.9 acre-feet for reservoir evaporation and <br /> 1,100 acre-feet from irrigation. <br /> New Depletion's - The maximum reservoir water surface area for the 4,070 acre-foot reservoir is <br /> 151 acres. The reservoir is assumed to be half full in April, full in May and June, one third full <br /> in July, 40% full in August, 20% full in September and 10% full in October. The following table <br /> summarizes the yearly estimated evaporation for the enlarged reservoir. <br /> Water Surface Evaporation <br /> (Enlarged Reservoir Operation) <br /> Month Evap. (in feet) Avq. Surface (acres) Total Evap. (AF) <br /> April 0.31 129 43.1 <br /> May 0.43 151 64.9 <br /> June 0.50 151 75.5 <br /> July 0.52 100 52.0 <br /> Aug 0.40 75 30.0 <br /> Sept 0.31 48 14.9 <br /> Oct 0.23 10 2.3 <br /> Total 2.70 282.7 <br /> The total evaporation for the enlarged reservoir is 283 acre-feet. The present evaporation is 102 <br /> acre-feet. The net increase in evaporation for the enlargement is 181 acre-feet. <br /> The irrigation supply for 1,140 acres with the enlarged reservoir will be 3,499 acre-feet which is <br /> 82%of the ideal demand of 4,264 acre-feet. The total depletion for 1,140 acres based on an 82% <br /> supply and 1.97 acre-feet per acre is 1,842 acre-feet. For simplification, all of the evaporation is <br /> assumed to be applied to irrigation. <br /> 30 <br />