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Water Surface Evaporation <br /> (From ALP Definite Plan Report) <br /> Month Evap. (in feet) <br /> April 0.31 <br /> May 0.43 <br /> June 0.50 <br /> July 0.52 <br /> Aug 0.40 <br /> Sept 0.31 <br /> Oct 0.23 <br /> Total 2.70 <br /> Existing Depletion's - The reservoir water surface evaporation is based on the 1070 acre-foot <br /> reservoir which has 56 acre of water surface when full. There is not a standard pattern of <br /> reservoir operation but generally the reservoir is full in April, May and June, half full in July, <br /> 25% full in August, and 10% full the rest of the summer. The following table summarizes the <br /> estimated evaporation for each month based on the monthly evaporation shown above and the <br /> estimated monthly water surface <br /> area. <br /> Water Surface Evaporation <br /> (Existing Reservoir Operation) <br /> Month Evap. (in feet) Avg. Surface (acres) Total Evap. (AF) <br /> April 0.31 56 17.4 <br /> May 0.43 56 24.1 <br /> June 0.50 56 28.0 <br /> July 0.52 35 18.2 <br /> Aug 0.40 22 8.8 <br /> Sept 0.31 10 3.1 <br /> Oct 0.23 10 2.3 <br /> Total 2.70 102.0 <br /> The water surface evaporation is 102 acre-feet. <br /> 29 <br />