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The SWSP which has been submitted includes both evaporative losses which will be incurred upon <br />completion of mining as well as industrial uses of the water for such purposes as road watering as <br />needed, crushing/screening operations, washing operations, and moisture lost in mined material. <br />The following text describes the uses of the water as well as how it will be augmented. <br />3_1 Depletions <br />Two scenarios exist for depletions: <br />3. LI Durin,e 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 90,000 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 2.6 acre-feet per year. <br />Depletions for gravel washing operations have been calculated to be 500 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 0.34 <br />acre-feet per month with a total of 4.08 acre-feet per year. <br />Dust will be controlled by both magnesium chloride and water. Water will only be used to spot <br />water between applications of magnesium chloride in order to eliminate any problem dust areas. <br />3.0 acre-feet per year will be allocated to dust control, or 0.25 acre-feet per month. <br />Total annual depletions from the gravel mining operations are estimated to be 11.48 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 />Tri County Pit Sept 2016 G-3 <br />