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<br /> <br />2. Estimate project water requirements including flow rates and annual volumes for the <br />' development, mining and reclamation phases of the project. <br />We are in the process of completing a Temporary Substitute Supply Plan and Well Permit <br />' application for the site. We will forward complete calculations of water requirements after <br />we have submitted the Temporary Substitute Supply Plan to the State Engineer for review. <br />' Depletions During Mining <br />Water depletions during mining will include: 1) evaporation losses from the dewatering <br />' trench; 2) water lost through operations including washing and dust control and 3) water <br />lost with the material hauled off-site. <br />1) Evaporation Losses <br />Note that NCCI is mining the site in phases (see attached Mining Plan Map} to <br />minimize the amount of land and water disturbed at any one time. Before any mining <br />begins, the operator will install a dewatering trench around the azea to be mined to <br />' control groundwater. Approximately 90 days before a phase has been completely <br />mined, the operator will begin installing a dewatering trench in the subsequent phase. <br />The amount of exposed groundwater will vary, depending on what phase is being <br />mined. Evaporative loss calculations will be included with the Temporary Substitute <br />Supply Plan. <br />2) Water Lost Through Operations <br />Wash Pond Evaporation <br />' The wash pond will be about 4 acres in size. <br />Dust Control <br />' NCCI will apply water to haul roads and stockpiles as necessary to prevent fugitive <br />dust. It is estimated that one Load from a 3,000-gallon capacity water truck twice a day <br />(Monday through Friday) for nine months is required for dust control. <br />' 3) Water Lost with the Material Hauled Off-Site <br />NCCI estimates they will mine 400,000 tons of material annually. It is anticipated that <br />mining will begin in the winter of 2001 and it will take 8 to 10 yeazs to remove the <br />material and reclaim the site. Annual production will depend on the demand for <br />construction material and may impact the total life of the mining operation on the site. <br />' NCCI Mining Proposal for the NCCI Pit # 1- MLRB 112Pennit <br />25 <br />