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West Elk Mine 2007 Annual Hydrology Report 26 <br />3.2.6.3 Deep Creek Trail Spring <br />is Deep Creek Trail Spring is located in upper Deep Creek which is tributary to the North Fork (Map <br />2). This spring is located in the SOD area that is scheduled for development between years 2009 <br />and 2013. The source of this spring appears to issue from alluvium. Baseline monthly monitoring <br />of Deep Creek Trail Spring began in the spring of 2007 and included measuring flow, collecting <br />field water quality data, and collecting samples for laboratory water quality analyses from May <br />through October 2007 (CDRMS, 2006). Routine monitoring (3 times per year) at this location will <br />commence in WY 2008. <br />3.3 Ground Water Monitoring <br />Currently, there are 28 monitored wells in the Project's ground water monitoring plan (Table 6), <br />including the SOM-23-H-1 (completely obstructed in August 2006), SOM-23-H-2, SOM-23-H-3, <br />and SOM-23-H-4 wells that MCC re-introduced into the monitoring program in 2005. Well SOM- <br />23-H-1 was monitored in 2005, however, although there was audible water flowing in well, the <br />well casing was damaged at depths of 135 feet, 145 feet, and 190 feet and it was completely <br />obstructed at 243 feet (original depth was 604 feet). As a result, monitoring data collected from <br />• SOM-23-H-1 is suspect and this well will not be monitored in the future. <br />In September 2003, MCC installed five monitoring wells (Upper Dry Fork Alluvial, Lower Dry <br />Fork Alluvial, SOM-3E, SOM-313, and 03-11-1). Baseline data for these wells were collected from <br />October 2003 to September 2004 and are presented in the 2004 Annual Hydrology Report <br />(HydroGeo, 2005) and shown in Appendix G. <br />The ground water monitoring wells are divided into the following 6 categories for discussion <br />purposes: <br />o Facility Area Wells and Alluvial Wells <br />o Wells completed in the Barren Member above the F Seam <br />o Wells completed in the F Seam <br />o Wells completed in the E Seam <br />o Wells completed above the E Seam <br />o Wells completed in the B Seam <br />The locations of the ground water monitoring wells are shown on Map 2. A summary of the <br />ground water monitoring well characteristics is presented in Table 5 and a summary of the ground <br />water monitoring program is presented in Table 6. <br />June 2008 HydroGeo, Inc.