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A summary of consumptive uses is given below: <br />Scenario 1 - During Mining <br /> <br />Use Tye <br />Basis Acre- <br />feet/ r <br />Sediment Pond Evaporation NOAA Evap. chart 1.24 <br />Gravel excavation retention tonnage mined 44.27 <br />Dust Control - roads tonnage and road use 2.58 <br />Totals 48.09 <br />Scenario 2 - After Mining <br /> <br />Use Type <br />Basis Acre- <br />feet/ r <br />Lake Evaporation NOAA Evap. chart 83.27 <br />Totals 83.27 <br />The numbers above are for worst case consumptive use since the lake is calculated at maximum <br />surface area. These amounts of water have been used in the gravel well permit application with <br />Colorado Division of Water Resources. <br />Gehrman Pit October 09 G-5