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EXHIBIT G <br />WATER INFORMATION <br />The proposed pit is on a slightly sloped area that has been irrigated at some point in the <br />past, but is primarily dry rangeland. The White River runs to the South of the pit and is <br />105 feet off the permit boundary at the closest point; however, the pit's proximity to the <br />river is not expected to be an issue- <br />A portion of the physical pit lies within the 100 year flood plain (as determined by the <br />FEMA maps). In the event of a 100 year flood, water will fill the pit to the flood level, <br />then subside the equilibrium ground water level, which is approximately 4 feet below the <br />existing ground surface. After the site is reclaimed, a 100 year flood would still fill the <br />lake, but will not overflow it, since the edge of the lake will be above the level of the <br />ground water. <br />There is virtually no chance that the river could capture the lake through erosion of the <br />river banks, because the river and lake are too far apart. May pits exist in Colorado which <br />are closer than 105 feet to a river. <br />No filling will occur above the original topography, so as not to raise the floodplain in <br />other areas. During mining and after reclamation, approximately 25 acres of disturbed <br />area will drain to the pit/lake instead of to the river. <br />Groundwater <br />The relatively impermeable layers of the Green River Shale immediately below the <br />gravel deposit prevent any recharge from the gravel operations into deep aquifers that <br />might be located below the shale. <br />Surface water <br />According to searches on the Division of Water Resources database, there are no <br />stockponds or springs within 600 feet of the Urie Gravel Pit area. There is one <br />abandoned and plugged well located Southerly of the proposed pit area which should be <br />unaffected by this operation. <br />16