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West Elk Mine 2003 Annual Hydrology Report WY2002. A number of sites have been dry for over a year including E-14-1 and G-30. Several springs do not flow but are typically wet in the spring season. These include G-26A, G-28A, G- lA, 15-1, 10-1, 10-2, 11-2, G-31, and G-35. These springs are impacted by lowing ground water levels due to continued drought conditions. There is no indication that the reduced flows were the result of mining activities. Water quality data from WY2003 did not indicate changes from baseline conditions for any of the monitored springs with the exception of spring G-7, 27-1, 26-1, J-4. Most trace constituent concentrations measured from G-7 and 27-1 exceeded the baseline maximum values in WY2003 as they did in WY2002. Springs 26-1 and J-4 had slightly elevated TDS levels in WY2003. These increased concentrations are likely due to low flow rates during the sampling period in June 2003 due to the drought and are not believed to be related to mining operations. However, MCC will carefully watch the water quality of this spring to see if any water quality trends occur. 5.3 Stock Ponds and USFS Water Resources Numerous stock ponds and USFS water resources are located in the mining area. The USFS sites are summarized in Table 7. Locations of these sites are shown in Map 3. There was no reported water lass or water quality issue at any of these sites in WY2003. 5.4 Grouud Water MCC maintains a network of 19 monitoring wells throughout the permit and lease areas. Several new wells were installed in September 2003, upper Dry Fork Alluvial well, lower Dry Fork Alluvial well, SOM-3B, and SOM-3E. Baseline data collection for these wells started in November 2003 and data will be presented in next years AHR. The casings in several wells have collapsed in the past several years, likely the result of mining induced subsidence. These wells include SOM-45-H1 (Sept. 2002), 5OM-2-H (Jul. 1999), SOM- 16-H (Sep. 2000), 96-27-1 (Apr. 2002), and SO.W-1 (Jun. 2002). Hydrologic data from these wells is suspect or not available. A summary of the well monitoring schedule is in Table 4 and well completion information is in Table 5. Locations of the stations are shown on Map 2. Well water level data and water quality information are presented in Appendix F and G respectively. 5.4.1 Water Quantity and Quality • There were no significant water quality changes in the wells during WY2003. However, there were several changes noted in water level data. 32 September 2004 HydroGeo, Inc.