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emanating from the base of the shelf rock anywhere on the site. There is very little moisture in <br /> the borrow material and will evaporate as it is mined. <br /> The water uses are dependent upon the breakdown of products forecast for the pit production and <br /> sales. This breakdown is given below: <br /> Water will be used in several ways in the pit operation: <br /> 1) Control dust on the haul roads and excavation areas <br /> Water used for dust suppression is usually 100 percent depletive with no measurable return flows <br /> to the river system. Dust from the haul roads will be controlled by water. Water will only be <br /> applied when needed at this elevation, since cold conditions on site for much of the year result <br /> in little evaporation and/or dust. <br /> 2) Crushing and Screening Plant Operations <br /> The crushing/screening plant uses 200 gallons per hour at a throughput rate of 225 tons per hour, <br /> but 180 tons per hour will be assumed, so this amount for 180 tons per hour is conservative. <br />