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Rifle Gravel Pit#1 August 2021 <br /> distribution for elevations below 6,500 feet. The evaporation was then reduced to account <br /> for periods when the pit is expected to be frozen over when the average temperature is <br /> below freezing, typically December through February for Rifle. <br /> The completed size of the gravel pit pond is not yet known, however for this preliminary <br /> analysis 53 acres is estimated, which includes all of the property area within the 25-foot <br /> setback. The 53 acres of surface evaporation is estimated to have 179.87 AF of depletions <br /> annually. Exhibit E1, Figure 15 depicts an 18.4-acre pond, but the conservative 53-acre <br /> area is being used for evaporation estimating. Table 4 presents the post-mining phase <br /> water use demand. <br /> 46 <br />