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Region
- United States3
- AlabamaMobile River Watershed1
- ArizonaPhoenix1
- Caddo Lake (La. and Tex.)1
- CaliforniaDelta Region1
- CaliforniaSacramento River1
- CaliforniaSacramento River Watershed1
- FloridaSaint Lucie River1
- Grand Canyon (Ariz.)1
- Maine1
- MarylandBaltimore County1
- MarylandHarford County1
- Naval Weapons Industrial Reserve Plant (Dallas, Tex.)1
- New York (State)Suffolk County1
- OklahomaCaddo County1
- Spokane River Watershed (Idaho and Wash.)1
- TexasDallas1
- TexasFort Worth1
- Washington (State)Yakima River1