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Subject
- Aquifers[remove]38
- Groundwater15
- Groundwater flow10
- Hydrogeology10
- Water table7
- Water-supply3
- Geophysical well logging2
- Hydrology2
- Subsidences (Earth movements)2
- Aggregate industry1
- Aquitards1
- Chlorofluorocarbons1
- Extensometer1
- Geology1
- Geology, Stratigraphic1
- Gravity anomalies1
- Groundwater tracers1
- Hydrology, Karst1
- Mines and mineral resources1
- Navajo Indian Irrigation Project (U.S.)1