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Region
- Florida3
- New JerseyRockaway River Watershed2
- TexasEdwards Plateau Region2
- TexasTrinity River Watershed2
- Wisconsin2
- CaliforniaAntelope Valley1
- CaliforniaEdwards Air Force Base1
- CaliforniaLassen County1
- Clark Fork (Mont. and Idaho)1
- FloridaPalm Beach County1
- FloridaReedy Creek (Orange County-Polk County)1
- Floridan Aquifer1
- GeorgiaValdosta Region1
- IndianaHenry County1
- KansasHarvey County1
- Little Rock Lake (Wis.)1
- Madison Aquifer1
- MarylandAberdeen Proving Ground1
- Memphis Aquifer1
- Montana1