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Rifle Gravel Pit #1 June 2021 <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. Figure 13 Exhibit E1 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 /> 37 <br />