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ENVIRONMENT, INC. PAGE 5 <br />APRIL 26, 201 O <br />ditch to intercept and divert the water off the property to <br />avoid having the valuable farm ground to the north becoming <br />marshy areas unsuitable for farming. <br />Submit a brief statement or plan showing how water from dewatering operations or from runoff from <br />disturbed areas, piled material and operating surfaces will be managed to protect against pollution of <br />either surface or groundwater (and, where applicable, control pollution in a manner that is consistent with <br />water quality discharge permits), both during and after the operation. <br />Water from the dewatering operation is pumped into a surface <br />dewatering trench that carries the water to the river. This <br />is,-done in compliance with our NPDES/Stormwater discharge <br />.permit. Water that comes in contact with disturbed area, <br />stockpiles and operation areas,is directed into our wash water <br />ponds and will not be discharged off site as described in our <br />Stormwater Management Plan. In addition, isolation berms and <br />ditches may be constructed along the mine's perimeter to keep <br />offsite water from entering the mine or on-site water from <br />leaving it. Any stormwater that contacts disturbed area <br />within the dewatering area commingles with groundwater and is <br />discharged under the approved NPDES permit. Once the site is <br />reclaimed most of the water contacting the site will be <br />retained in the excavated area. Water that does runoff will <br />be from areas that have been returned to their natural <br />conditions and that discharge is not regulated. <br />You must provide an estimate of the project water requirements including flow rates and annual volumes <br />for the development, mining and reclamation phases of the project. <br />The only consumptive use of water now is evaporation off the <br />lake area and our SWSP provides for replacing 19.2 ac-ft of <br />water. The following table shows the estimated volumes of <br />water needed for this mine in the first year after we resume <br />mining: <br />------------ Acre-feet ----.--------? <br />Excavation Evaporation Dust. <br />Control Total <br />7.6 <br />11 19.2 1.0 27..8 <br />You must indicate the projected amount from each of the sources of water to supply the project water <br />requirements for the mining operation and reclamation. <br />In the summer, replacement water comes from shares of Rural <br />Ditch.owned by L.G. Everist. In winter, the replacement water <br />'is purchased from the Varra Companies 112 Pit reservoir. <br />Dewatering water is non consumptive and no replacement water, <br />is needed for this activity. <br />Exhibit L - Reclamation Costs (Rule 6.4.12) <br />The reclamation estimate provided in this application is much better than most, however, all information <br />necessary to calculate the costs of reclamation must be submitted and broken down into the various major <br />phases of reclamation. If direct quotes are used for items such as seeding, please provide copies, so that. <br />they can be verified and included in the site file. You must provide sufficient information to calculate the <br />cost of reclamation that would be incurred by the state. Please also provide cost estimates for the. <br />following items: