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• <br />• <br /> <br />alluvial deposits at or near the outcrop of the Pierre Shale. Existing <br />well permits in the general area are listed by Table 11, Well Permits - <br />Permit and Adjacent Areas. Groundwater wells within the mine and loadout <br />areas include the two (2) Corley wells and the Thompson well. <br />The Corley Mine Well, located in Section 23, T20S R70W, is permitted to <br />produce approximately 60 gallons per minute from the abandoned Corley Mine , <br />workings in the Vermejo Formation. EFCI, under an agreement with the ~,~ <br />Corley Company has obtained the right to utilize water from the Corley ~ ~ `'~ <br />~~ ;-'~ ;i <br />Mine Well on an as-needed basis for mining and processing operations. This ~~~ c•~ <br />well and associated abandoned underground mine workings are located ~~~~~'' <br />outside of the angle of draw limit for the proposed Southfield operations ~'`'•~~ <br />and consequently should not be impacted by proposed mining activities. <br />In addition, beneficial use to date has not resulted in any significant <br />observed draw-down or reduction in flows. <br />The Corley Company Well, located in Section 24, T20S R70W, produces <br />approximately one (1) gallon per minute from the Raton Formation. The <br />source and corresponding reservoir volume for the Corley Company Well are <br />unknown, however, it is assumed that the well intersects a perched <br />groundwater table within the Raton Formation. <br />The Thompson Well was completed and a well permit issued in 1941. The <br />well was originally drilled as an exploration borehole for the Rex Carbon <br />Mine. In conjunction with ongoing operations of the Rex Carbon Mine, the <br />well was intercepted by active mine workings. In order to preserve well <br />flows the well was tied into the mine dewatering system. The well was <br />utilized as a water source for the nearby Thompson Ranch until the <br />dewatering line was broken by blasting activities associated with a nearby <br />strip mining operation. At the time of the initial break, the Rex Larbon <br />workings were still accessible and the waterline was repaired. However, <br />subsequent to closure and abandonment of the Rex Carbon Mine, the line was <br />again broken by blasting activities and was inaccessible for repairs. Use <br />of the Thompson well was subsequently discontinued and associated surface <br />structures were removed. <br />~k <br />a~~,~l~ <br />2.04.7-12 <br />