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Mayo and Associates, LC <br />i~• <br />3.7.2.1 Rock Access Slope (No Name Fault #1) <br />In late 1990, approximately 100 gpm of groundwater was encountered at the bottom of <br />the access slope to the B Seam (Figure 13). This water issued from the mine floor where <br />a fault, with 5 feet of vertical displacement, was encountered. Discharge from the fault <br />declined rapidly and the groundwater system was not investigated. Solute composition, <br />discharge temperature and other chemical parameters of this dischazge water are <br />unknown, but no notable chazacteristics (i.e. elevated temperature, odor) were observed. <br /> __ _ . ssoo <br />Ut~ ~ <br />rc-_ ~.r , <br />• <br />.~ <br />li <br />o Surface Drillholes <br />• In-mine Drillholes <br />~ Fault Watei <br />• Blowouts <br />\ BSeam sWcture contour (feet) <br />Approximate locations of faults, <br />~"l ball and bar on downlhrown side <br />0 5000 <br />Feet <br />~~ ~ ~~~:~ ob'OAO-23~~ ~ ~'~~~ <br />`. <br />~ A~V A ~ \~~ ~~~~`~ <br />`~ <br />~\\ ~\\ 6~ <br />sBOo <br /> <br />Figure 13 Map of existing and proposed mine workings, surface and in-mine water <br />sampling locations, faults, and B Seam structure, West Elk Mine. <br />Evaluation of Potential Groundwater Inflows 52 February 24, 2004 <br />Associated with E Seam Mining, <br />West Ells Mine, Somerset, Colorado <br />