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Subject
- Groundwater5
- Stream measurements4
- Groundwater flow3
- Water levels3
- Aquifers2
- Floods2
- Freshwater ecology2
- Hydrogeology2
- Reservoirs2
- Sediment transport2
- Streamflow2
- Water table2
- Channels (Hydraulic engineering)1
- Chemical spills1
- Chlorofluorocarbons1
- Evapotranspiration1
- Factory and trade waste1
- Fluid mechanics1
- Freshwater fishes1
- Grasslands1