2023-02-17_HYDROLOGY - M2007044

• Permit No: M2007044
• IBM Index Class Name: Hydrology
• Doc Date: 2/17/2023
• Doc Name: Water Monitoring - Groundwater
• From: Energy Fuels Resources Inc.
• To: DRMS
• Email Name: ACY
• Email Name: THM
• Media Type: D
• Archive: No

Whirlwind Mine Groundwater Characterization Report
5.2.2 Brushy Basin Chemistry.......................................................................................29
5.2.3 Salt Wash Sources ..............................................................................................30
5.2.4 Other Water Types...............................................................................................33
6.0 INTERPRETATION........................................................................................................34
6.1 Surface Hydrology......................................................................................................34
6.2 Groundwater Hydrology.............................................................................................35
6.2.1 Burro Canyon.......................................................................................................35
6.2.2 Brushy Basin........................................................................................................37
6.2.3 Salt Wash............................................................................................................41
6.2.4 Other Water Sources...........................................................................................46
6.3 Groundwater Flow ...............................................................................................47
7.0 HYDROGEOLOGIC CONCEPTUAL MODEL.................................................................48
8.0 MINING HYDROLOGIC EFFECTS ................................................................................53
8.1 Potential Impact of Mining on Groundwater ................................................................53
8.2 Fate of Water in Mine Workings..................................................................................56
8.3 Water Balance............................................................................................................56
8.4 Post-Mining Hydrology................................................................................................58
8.5 Potential Ore Pad Leachate Mitigation........................................................................59
8.6 Water Quality Monitoring Program..............................................................................59
8.7 Water Quality Mitigation..............................................................................................59
9.0 SUMMARY AND CONCLUSIONS..................................................................................59
Western Water& Land, Inc. E-2