Region
United States
142
Spain
15
California
14
Washington (State)
14
Florida
10
New York (State)
10
New Mexico
7
Nevada
6
South Carolina
6
Taiwan
6
Indiana
5
Colorado
4
Louisiana
4
New Jersey
4
North Dakota
4
Pennsylvania
4
South Dakota
4
Texas
4
Albuquerque
3
Arizona
3
Arkansas
3
Georgia
3
Germany
3
Iowa
3
Massachusetts
3
New Hampshire
3
North America
3
Ohio
3
Red River of the North
3
Savannah River Site
3
Tennessee
3
Utah
3
West (U.S.)
3
Wisconsin
3
Alaska
2
Arikaree Aquifer
2
Baton Rouge
2
Big Sioux Aquifer (S.D.)
2
Carson River Watershed
2
Connecticut
2
Delaware River Watershed
2
Delaware River Watershed (N.Y.-Del. and N.J.)
2
Devils Lake (Lake)
2
Everglades (Fla.)
2
Floridan Aquifer
2
Great Basin
2
Hawaii
2
Idaho
2
Ingham County
2
Klamath River (Or. and Calif.)
2
more ...