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SUMMIT ENGINEERING COI ENGINEERS & LAND SURVEYORS <br /> Mail: P.O. Box 1897 Alamosa, CO 81101 P: 719-589-6147 E: summitengco@gmail.com <br /> Water Information <br /> There is an existing exempt commercial well on the property and it draws water from the <br /> unconfined aquifer at a depth of 40 feet. The well is 100 feet deep. <br /> Groundwater is not expected for more than 20 feet from the lowest point in the area to- <br /> be permitted. Robins Rock Pit will not affect either surface water or groundwater <br /> systems, since the bottom of the pit will be significantly above both the Conejos River <br /> and the static water level in the exempt commercial well drilled on the property. It is <br /> expected that approximately 1 ac-foot per year will be used for reclamation purposes <br /> and minimal amounts will be used for dust control. Runoff from storms and snow melt <br /> will be contained within the pit and the pit will be graded in such a way as to always be <br /> lower than the adjacent property. Since no runoff will be allowed to leave the permit <br /> area, Robins does not anticipate that a NPDES permit will need to be acquired from the <br /> Colorado Department of Public health and Environment. <br /> Job # 1200710MP -A Page123of68 <br />