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West Elk Mine 2006 Annual Hydrology Report rv <br />5.0 ASSESSMENT OF MINE-INDUCED HYDROLOGIC IMPACTS AND ANTICIPATED <br />IMPACTS IN WY 2006 ......................................................................................................................... 39 <br />5.1 Surface Water ...................................................................................................................... 39 <br />5.1.1 Impacts to Area Stream Water Quantity and Quality ............................................ 40 <br />5.1.2 Impacts to the North Fork of the Gunnison River .................................................. 40 <br />5.2 Springs and Seeps ............................................................................................................... 41 <br />p Q ty Q ty .................................................................. <br />5.2.1 Im acts to Water uanti and uali 42 <br />5.3 Impacts to Stock Ponds and USFS Water Resources .......................................................... 43 <br />5.4 Ground Water ...................................................................................................................... 43 <br />p Q ty Q h' .................................................... <br />5.4.1 Im acts to Ground Water uanti and uali 43 <br />6.0 ADEQUACY OF THE MONITORING PROGRAM ............................................................................ 46 <br />6.1 Mining Related Hydrologic Impacts ................................................................................... 46 <br />7.0 SUMMARY ............................................................................................................................................ 47 <br />8.0 REFERENCES ....................................................................................................................................... 49 <br />LIST OF TABLES <br />Table 1. Monitoring Frequencies ....................................................................................................7 <br />Table 2. Laboratory Parameters Baseline and First 5 years of Sampling ........................................8 <br />Table 3. Summary of Surface Water Monitoring .........................................................................10 <br />Table 4. Summary of the Spring and Seep Monitoring Program ...........................................16 - 17 <br />Table 5. Summary of the Ground Water Monitoring Well Data ...................................................25 <br />Table 6. Summary of the Ground Water Monitoring Program .....................................................26 <br />Table 7. Summary of the Underdrain and Mine Inflow Monitoring Program .............................. 27 <br />Table 8. Summary of U.S. Forest Service Water Sources ..............................................................28 <br />Table 9. CDPS Effluent Limitations for the WWTP (007A) .........................................................33 <br />Table 10. Summary of CDPS Discharges for Water Year 2006 .............................................34 - 35 <br />Table 11. Summary of Sedimentation Pond CDPS Discharge Permit Limits ................................36 <br />Table 12. Summary of Salinity Loading in the North Fork of the Gunnison .................................41 <br />December 2007 HydrOGeo, Inc. <br />