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EXHIBIT G <br />WATER INFORMATION <br />Surface Water <br />The proposed mine site lies adjacent to the Arkansas River. The 100 year floodplain <br />extends over the entire site. The topsoil and overburden stockpiles will be located in an <br />west to east direction, aligned with the general direction of flow, to limit obstruction of the <br />floodplain and limit erosion should any floodwater reach that depth. <br />Due to the removal of material from the site the net floodplain cross sectional area will <br />increase and therefore provide more flood storage than what currently exists. All mining <br />will be set back from the Arkansas River 400 feet or more as shown on Exhibit C. <br />Drainage originating from the site will be routed to the excavated pits. Sediment resulting <br />from on-site and off-site erosion will be intercepted by drainage swales within the permit <br />area and by the pits. A stormwater management plan will be developed and implemented <br />for the mine site in accordance with Colorado Health Department regulations and <br />guidelines. <br />Groundwater <br />The site is located within the Arkansas River alluvium. Groundwater is approximately 12 <br />to 14 feet below the ground surface. Mining will extend, on the average 60 feet below <br />the ground surface, and consequently groundwater will be encountered. <br />The site will be wet mined using a floating dredge. Therefore the water table will not be <br />dropped and the water levels in adjacent wells will be unaffected by the mining operation. <br />The reclamation plan entails creating several lakes as shown on Exhibit F with the total <br />water surface area of 410 acres. <br />Water will be pumped from the pit for dust control on the site, for the washing/screening <br />process, and for concrete production. The use of large conveyor systems will reduce the <br />requirement for dust control within the mine area. <br />The Arkansas River isover-appropriated and therefore any water consumption due to the <br />operation will require augmentation of the stream system. Augmentation of the stream <br />system is required due to possible calls in Colorado between Holly and the Colorado state <br />line and more likely water calls by Kansas in accordance with the Interstate Compact <br />Agreement between Colorado and Kansas. <br />G-1 <br />