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SUMMIT ENGINEERING C 0 1 ENGINEERS & LAND SURVEYORS <br /> Mail: P.O. Box 1897 Alamosa, CO 81101 P: 719-589-6147 E: summitengco@gmail.com <br /> Water Information <br /> Groundwater is not expected for more than 30 feet from the lowest point in the area to <br /> be permitted, and 100 feet from the areas of mining operation. Robins Rock Pit will not <br /> affect either surface water or groundwater systems, since the bottom of the pit will be <br /> significantly above the Conejos River. It is expected that approximately 1 ac-foot per <br /> year will be used for reclamation purposes and minimal amounts will be used for dust <br /> control. This water will originate from the applicant's batch plant or equipment yard well <br /> off site. Both wells are adjudicated so that water can be transported from the well to the <br /> pit. <br /> Runoff from storms and snow melt will be contained within the pit and the pit will be <br /> graded in such a way as to always be lower than the adjacent property. Since no runoff <br /> will be allowed to leave the permit area, Robins does not anticipate that a NPDES <br /> permit will need to be acquired from the Colorado Department of Public health and <br /> Environment. <br /> Job # 1200710MP - C Pagel 24of79 <br />