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• 2.04.11 <br />Underground Roadways <br />Amount per work day 6,000 <br />Amount per 355 work days -Acre Feet 6.5 <br />Conveyor Spays - 10 surface transfers <br />Transfer details 3 Sprays <br />Spray Details 1.6 gpm/spray <br />Consumption per transfer - 20 hour shift 5.760 gallons <br />10 Transfers 57,600 gallons <br />Consumption -acre feet for 355 Shifts 62.8 <br />Reclaim Tunnel at Portal Bench Sprays <br />Details 10 Sprays <br />Spray Details -fine mist 0.5 gpm/spray <br />Consumption - 20 hour shift 6,000 gallons <br />Consumption -acre feeU355 days 6.5 <br />• Bathhouse Consumption -Includes domestic potable water <br />Maximum Flow 11,500 gpd <br />Days per year 355 days <br />Consumption/ Acre Feet 12.5 <br />Ventilation fan moisture output <br />Any water evacuated from the mine by the ventilation fan would be <br />accounted for in the above estimate. Water pumped into the mine <br />from the Deer Trail Ditch could be picked up by the mine vent fan <br />after it is utilized for water sprays or other dust suppression activities. <br />The ventilation fan should not consume any water that is not <br />accounted for from water pumped from the Deer Trail Ditch. <br />• <br />PR-06 2.04 - 68 - 08/01 <br />/1 I PRoV60 <br />~~/5/02 <br />