2013-07-02_REPORT - C1980007 (3)

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West Elk Mine 2012 Annual Hydrology Report 3.2 Spring and Seep Monitoring Program 22 In WY 2012 a total of 36 springs and seeps were monitored as part of the MCC hydrologic monitoring program (Table 5). This number does not include seep E14 -1 which has not been monitored since it was abandoned in 2006 when it was covered by drill -pad construction activities. The spring and seep monitoring plan is divided into four general hydrologic categories for discussion purposes: • Springs and seeps in the NFGR drainage basin issuing from the strata above the F -coal seam. • Springs and seeps in the NFGR drainage basin issuing from strata in or below the F -coal seam. • Springs and seeps in the Jumbo Mountain area in the NFGR drainage issuing from strata above the B -coal seam. • Springs and seeps in the Dry Fork drainage issuing from strata above the E- coal seam. The locations of the spring and seep monitoring stations are shown on Map 2. The following discussion of monitored springs is presented according to the general hydrologic categories described above and is presented from upstream to downstream relative to the mining area. A summary of the spring and seep monitoring program details is presented in Table 5. June 2013 HydroGeo, Inc.