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Subject
- Groundwater19
- Geology15
- Radioactive waste disposal in the ground13
- Mines and mineral resources4
- Gravel3
- Sand and gravel mines and mining3
- Abandoned mined lands reclamation2
- Aggregate industry2
- Aggregates (Building materials)2
- Aquifers2
- Engineering geology2
- Groundwater flow2
- Hydrogeology2
- Hydrology2
- Land use2
- Prospecting2
- Quarries and quarrying2
- Rocks2
- Sand2
- Weathering2