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Subject
- Groundwater346
- Hydrogeology185
- Aquifers112
- Groundwater flow111
- Water quality79
- Water-supply52
- Water table41
- Geology29
- Hydrology28
- Water levels24
- Geochemistry19
- Water18
- Stream measurements16
- Water resources development13
- Water chemistry12
- Coal mines and mining9
- Radioactive waste disposal in the ground9
- Monitoring wells8
- Wells8
- Geology, Stratigraphic7