Region
- High Plains Aquifer1
- Hunters Lake (Fla.)1
- Indiana1
- KentuckyJefferson County1
- LouisianaVernon Parish1
- MassachusettsWalden Pond (Middlesex County)1
- MinnesotaMinneapolis Region1
- MinnesotaMount Simon-Hinckley Aquifer1
- Mississippi1
- Monument Valley (Ariz. and Utah)1
- Mount Simon-Hinckley Aquifer (Minn.)1
- Naval Air Station Memphis (Tenn.)1
- Naval Ordnance Station Louisville (Ky.)1
- Nebraska1
- NevadaHumboldt River Watershed1
- New JerseyGloucester County1
- New JerseyKettle Creek Watershed1
- New JerseyMaurice River1
- New JerseyMetedeconk River Watershed1
- New JerseyMonmouth County1