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Region
- Columbia Plateau2
- United States2
- AlaskaAnchorage Region1
- CaliforniaLassen Volcanic National Park1
- FloridaTampa Bay1
- IdahoIdaho National Laboratory Region1
- IdahoSnake River Plain Aquifer1
- Kansas1
- Minnesota1
- Mississippi1
- Mississippi River1
- Mississippi River Watershed1
- NevadaClark County1
- South CarolinaPinewood1
- South CarolinaSumter County1
- Tahoe, Lake, Watershed (Calif. and Nev.)1
- Washington (State)Ellensburg Region1
- West VirginiaRitchie County1
- Wyoming1
- WyomingGlenrock Region1