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Subject
- Hydrology17
- Water quality6
- Coal mines and mining3
- Environmental aspects2
- Stream measurements2
- Water-supply2
- Aquatic ecology1
- Diffusion in hydrology1
- Geochemistry1
- Geological Survey (U.S.). Water Resources Division. Colorado District1
- Groundwater1
- Measurement1
- Nutrient pollution of water1
- Pollution1
- Research1
- Research institutes1
- Rocky Mountain Hydrologic Research Center1
- Streamflow1
- Strip mining1
- Trace elements in water1