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3. Water Consumption for the Operation and Water Rights <br /> A Gravel Well Permit will be needed for the mining of the BRS&G Pit 1. Susbstitute Water Supply <br /> Plans and an Augmentation Plan will also be necessary. The landowner owns significant water <br /> rights for irrigating the fields on their property, and as the fields are mined out the irrigation water <br /> will be converted to augmentation water to cover the reclaimed lakes. <br /> 3_1 Depletions <br /> Two scenarios exist for depletions: <br /> 3.1.1 During Mining <br /> During the mining phase, losses will occur in three areas: <br /> Depletions for moisture lost in the mined material has been calculated to be 4% of the material <br /> mined below the water surface level. It is estimated that 200,000 tons of material will be mined <br /> below the water table per year. It has been calculated that moisture will be lost in the mined <br /> material in the amount of 5.9 acre-feet per year. <br /> Depletions for gravel washing operations have been calculated to be 750 gallons per day based <br /> upon previous experience. It is expected that the gravel washing operations will be in operation a <br /> maximum of 52 weeks per year and 5 days per week. This would result in a consumption of 6.2 <br /> acre-feet per year. <br /> Dust will be controlled by both magnesium chloride and water. 3.0 acre-feet per year will be <br /> allocated to dust control. <br /> Total annual depletions from the gravel mining operations are estimated to be 15.1 acre-feet per <br /> year during the mining phase. <br /> 3.1.2 After Mining <br /> Once mining has completed,the only loss will be an evaporative loss from the exposed water <br /> surface which the gravel mining operation creates. <br /> BRS&G Pit l t.n7 I awick and \s uaa�n.I'i I <br /> March 2019 G-3 <br />