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The proposed extension of the existing mine will require <br />• water for two uses, fugitive dust control and sanitation. Both <br />demands will be met principally by groundwater utilization (see <br />Willard Owens report for estimates of water requirements). Water <br />for fugitive dust control will be drawn from the sediment control <br />pond. This pond will be fed by groundwater which seeps into the <br />mine and is pumped from the pit. Application has been made to the <br />Water Court in Division 6 for a .0446 cfs (20 gpm) flow right for <br />pumpage from the mine and a 15 ac ft/yr storage right at the <br />sediment control pond. <br />Water for sanitary usage will be drawn from a well which pene- <br />trates the upper sandy section of the Pierre Formation. A request <br />for a permit for this well located on private land near the existing <br />mine buildings (see Plate 4, Willard Owens report), has been filed <br />with the Colorado Division of Water Resources. Water from this well <br />is suitable for sanitary usage; however, it will require some <br />treatment is utilized for domestic consumption. <br />• <br />Only one other groundwater appropriation exists in Bolton <br />Draw, that of the Kerr Mine approximately 2 miles north. Neither <br />drainage of the pit nor use of water from a well penetrating the <br />Pierre should affect this well. Furthermore, groundwaters being <br />utilized are not in direct connection with the weathered surficial <br />aquifer and use of these waters should not impact surface water <br />rights. Hence, alternative sources of water supply will not be <br />needed as the proposed operation will not significantly impact <br />either surface or groundwater usage. <br />Mining in Zone V (the disturbed area shown on Plate 4, <br />Willard Owens report) should not impact the quality of either <br />surface or groundwaters. The greatest threat to water quality <br />is the increased sediment load, which could be carried by runoff <br />from the disturbed area. Hocaever, all runoff from Zone V will be <br />channeled into the sediment control pond and caill not be allowed <br />. to reach Bolton Draw. <br />-55- <br />