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G-2 <br />Water <br />There are no fundamental changes to this section. The original application contained a <br />detailed water analysis prepared by Leonard Rice Consulting Water Engineers. The water <br />table map and water wells within 900 feet were also document in previous applications and <br />there has been no known change in these features. <br />Hydrologic Balance <br />Installation of the slurry wall could upset the hydrologic balance if certain measures are not <br />implemented. Previously permit filing documents for Road Runner's Rest II and other <br />mining permits in the immediate area have established the general flow of ground water in <br />this region is from south and east to north and west towazds the South Platte River <br />The slurry wall installation will create a subsurface barrier the may cause the ground water to <br />rise above historical levels on the east side of the slurry wall. This could have adverse effects <br />on the adjacent property owners <br />The Polly Anna Mann mine directly east of Road Runners Rest II controls the ground water <br />elevations of the land adjacent to and east of this mine. There is a large culvert that will be <br />installed by CDOT as part of the 120`" Avenue construction. The invert of this culvert will <br />essentially control the water surface in Polly Anna Mann pit and the ground water elevation <br />between Polly Anna Mann and Road Runner's Rest II. This hydraulic feature will negate <br />the need for a mounding drain on the east side of the slurry wall between the south side of <br />120`s Avenue and the south side of Road Runner's Rest II amended mine facility. As a <br />result, there will be no change in the hydrologic balance of the ground water on the east side <br />of the future storage reservoir in Road Runners Rest II Pit. <br />The South Platte River is located on the west and north sides of the permitted gravel pit <br />areas. The Platte River water elevations will control the ground water elevations adjacent to <br />the amended mining area. Therefore there is no adverse affect to the ground water caused by <br />the slurry wall and no need to install a mounding drain along the east side of the pit. <br />A generalized cross section of these completed reservoir is also provide for additional <br />understanding of the effects the slurry wall, mounding drain and river will have on the <br />ground water hydrology. <br />