Region
United States
293
New Jersey
5
California
3
Chesapeake Bay (Md. and Va.)
3
Nevada
3
Chesapeake Bay Watershed
2
Connecticut
2
Kansas
2
Maryland
2
Massachusetts
2
Mexican-American Border Region
2
Montana
2
Naval Station Newport (R.I.)
2
Pennsylvania
2
Wisconsin
2
Yucca Mountain
2
Aberdeen Proving Ground
1
Alaska
1
Arizona
1
Atlanta
1
Big Cypress Reservation
1
Big Cypress Reservation (Fla.)
1
Bridgeport
1
Colorado Plateau
1
Daly West Mine (Utah)
1
Developing countries
1
Flathead Indian Reservation
1
Flathead Lake (Mont.)
1
Florida
1
Fort Peck Indian Reservation
1
Fort Peck Indian Reservation (Mont.)
1
Georgia
1
Great Lakes (North America)
1
Great Lakes Watershed (North America)
1
Haverford
1
Hoopa Valley Indian Reservation
1
Hoopa Valley Indian Reservation (Calif.)
1
Hualapai Indian Reservation
1
Hualapai Indian Reservation (Ariz.)
1
Illinois
1
Kansas City
1
Louisiana
1
Maine
1
Massachusetts Military Reservation (Mass.)
1
Mexico
1
Mexico, Gulf of
1
Michigan
1
Middle Atlantic States
1
Middleton
1
New Orleans
1
more ...