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West Elk Mine Wells that were completed in the Barren Member of the Mesaverde Formation and, included in the monitoring program were B-32, SOM-80, SOM-13, SOM 45-H1, SOM-45-H2, SW-1, SW-2, SW-3, SW-4, SW-5, and SW-6. B-32 was removed from the monitoring program in 1998 due to subsidence damage that rendered the well unusable for monitoring purposes, and the SW series of wells were removed from the program in 1999 for similar reasons. Wells SOM 45- Hl and SOM 45-H2 have both been affected by the underlying longwall mining of Panel 13. The well casing in SOM 45-H1 collapsed between June and September 2002 and this well in no longer functional as a monitoring well. The water level in SOM 45-H2 has dropped considerably over the past several years indicating a lack of stabilization in the area since mining ceased in 2000-2001 or poor recharge to this formation as a result of several years of drought. Monitoring wells SOM-80 and SOM-13 will continue to be monitored as long as they continue to provide reliable information. Pumping tests were conducted on several presently unmonitored wells, which were completed into the Barren Member. These wells include SOM-C-76-A, SOM-22-H-2, SOM-64, and SOM-55. These tests show that the Barren Member wells exhibit a wide range of permeabilities from approximately one-half to 300 feet per yeaz (2 x 10-r to 3 x l0A cm/sec). Flow rates for these wells were, however, consistently low as documented in Exhibit 17. Ohio Creek Member (Mesaverde Formation) and Wasatch Formation (Tertiary Age) Overlying the Barren Member is the Ohio Creek Member of the Mesaverde Formation and, above it, the Tertiary-age Wasatch Formation. These formations cap West Flatiron Mesa, located in the eastern portions of the permit area, and the other high mesas occurring further to the east. Like the Barren Member, these formations are generally comprised of interbedded shales and discontinuous lenticular sandstones with occasional conglomeratic zones. Drilling data indicates that these rock units are lazgely devoid of groundwater. The high stratigraphic position of these rock units, limited area of distribution, and outcrop exposure is not conducive to water rechazge and storage. Colluvium The colluvium, which overlies the Barren Member of the Mesaverde Formation, is the principal water-bearing unit above the F Seam, as indicated in the Spring Geology and Hydrology Report (Watec, 1984 AHR). The colluvium consists of discrete, localized units that generally follow topography. The colluvial units rechazge and dischazge on a seasonal basis in response to snow- melt and precipitation events. There aze presently no wells completed in the colluvium that aze part of the groundwater monitoring program. Monitoring wells WR-2 and WR-3 were located immediately up-slope and down-slope of the initial waste rock pile in the azea that is now the site of West Ells Mine's Maintenance Shop and Wazehouse. Monthly water level recordings were initiated in September 1981. Well WR-2 was destroyed in June 1982, during construction of the shop and wazehouse bench. Anew well WR-2 was completed in November 1982, at a location 49 feet upslope of the original well. The initial waste rock pile was removed in 1985. Consequently, the wells WR-1 and WR-2 were abandoned. 2.04 -69 Revised November 2004 PR/O