2010-06-30_REPORT - C1980007 ‎(5)‎

• Permit No: C1980007
• IBM Index Class Name: REPORT
• Doc Date: 6/30/2010
• Doc Name: 2009 Annual Hydrology Report
• From: HydroGeo, Inc
• To: DRMS
• Annual Report Year: 2009
• Permit Index Doc Type: Hydrology Report
• Email Name: TAK
• Media Type: D
• Archive: No

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West Elk Mine 2009 Annual Hydrology Report
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5.2 Springs and Seeps ................................................................................................ 53
5.2.1 Impacts to Spring and Seep Water Quality ............................................. 53
5.2.2 Impacts to Spring and Seep Water Quantity ........................................... 54
5.3 Stock Ponds and USFS Water Resources ............................................................ 55
5.4 Groundwater ........................................................................................................55
5.4.1 Impacts to Groundwater Quality ............................................................ 56
5.4.2 Impacts to Groundwater Quantity .......................................................... 57
6.0 ADEQUACY OF THE MONITORING PROGRAM ............................................................ 61
6.1 Mining Related Hydrologic Impacts ................................................................... 61
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7.0 SUMMARY ............................................................................................................................ 62
8.0 REFERENCES ........................................................................................................................ 66
LIST OF TABLES
Table 1. Baseline and Routine Monitoring Frequencies ................................................................ 8
Table 2. Laboratory Parameters First 5 Years of Monitoring (including Baseline) ...................... 9
Table 3. Summary of Surface Water Monitoring Program .......................................................... 11
Table 4. Summary of the Temperature Monitoring Sites ............................................................ 17
Table 5. Summary of the Spring and Seep Monitoring Program ........................................... 21-22
Table 6. Summary of the Ground Water Monitoring Well Characteristics ................................. 30
Table 7. Summary of the Ground Water Monitoring Program .................................................... 31
Table 8. Summary of the Underdrain and Mine Inflow Monitoring Program ............................. 32
Table 9. Summary of U.S. Forest Service Water Resources ....................................................... 33
Table 10. Summary of CDPS Limits for Outfall 007 .................................................................... 40
Table 11. Summary of CDPS Discharges for Water Year 2009 .................................................... 42
Table 12. Summary of Sedimentation Pond CDPS Discharge Permit Limits ..........................45-46
Table 13. Summary of Salinity Loading in the North Fork of the Gunnison ................................ 52
June 2010
HydroGeo, Inc.