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0 3. Water Consumption for the Operation and Water Rights <br />A small amount of water will be required to be used in the operation to control dust. There will <br />not be any wash plants or any other plants or equipment which will use water at this time, <br />however if in the future there are such plants or equipment, the Division of Reclamation, Mining, <br />and Safety will be notified as well as the Division of Water Resources to ensure that adequate <br />water is available for the proposed plants or equipment. <br />Dust will be controlled by water as needed. Water will only be used to spot water roads when <br />conditions on the access roads and in the pit warrant the use of water to control dust. Based on <br />previous experience in the Korinek Pit, it is not expected that much water will have to be used to <br />control dust. It is not expected that water is needed for the screening plant since the production is <br />below levels that CDPHE considers for these controls. Water for the dust control in this <br />operation will be taken from the groundwater sump on the pre-law area of the permit. 2.0 acre- <br />feet per year will be allocated to dust control, or 0.17 acre-feet per month. <br />Total annual depletions from the gravel and shale mining operations are estimated to be 0.17 <br />acre-feet per year during the mining phase. <br />4. Water Control/Diversion <br />The terrain around Korinek Pit #1 is generally flat and is sloping slightly (0 - 2% grade) towards <br />the Arkansas River. In order to avoid problems with storm water and possible contamination, an <br />isolation berm will be built around the pit highwall as seen on Map C-2. Also berms will be built <br />along the south side of the pit to contain stormwater in the pit. An isolation berm will be <br />constructed around the industrial area to contain stormwater. During mining, a pair of run-off <br />retention berms and sumps will be constructed on the southeast corner of the permit area to retain <br />run-off from disturbed areas. No such control structures will be placed on the southwest end <br />since that area is reclaimed and therefore will not be disturbed any more. <br />• <br />Korinek 41 Pit August 2009 G-2