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Mayo and Assocla/es, LC <br />• systems in unconsolidated rock and Barren Member are not in hydraulic communication with <br />in-mine or coal seam groundwaters. If groundwater systems which discharge as springs in <br />the Barren Member were in good hydraulic conununica[ion with Upper and Lower Coal <br />Member groundwater systems, we would anticipate a larger number of springs and greater <br />spring discharges from the hvo coal members. Only three springs (D-20, WCC-1 1, and <br />WCC24) issue from the Upper and Lower Coal Members. If spring WCC-24, which has a <br />maximum recorded discharge of 108 gpm, is excluded, the maximum recorded discharge for <br />the other two springs is only 1.75 gpm. Spring WCC-24 is located near Minnesota Creek and <br />does not have a thick overlying sequence of Barren Member rock, as in the case of the other <br />two springs. <br />The general absence of springs issuing from the Upper and Lower Coal Members and the <br />Rollins Sandstone means that these rock bodies do not contain areally extensive and <br />interconnected groundwater systems. <br /> <br />Characterization of Groundwater Systems in the Vicinity oCthe West Elk Mine, Somerset, Colorado <br />29 January 1999 <br />Page 6S <br />