Region
New York (State)
24
Florida
21
New Mexico
21
Colorado
18
High Plains Aquifer
18
High Plains (U.S.)
16
California
15
Texas
15
Minnesota
14
Alabama
13
New Jersey
13
Arkansas
12
Southern States
12
South Dakota
11
Tennessee
10
Washington (State)
10
Mississippi Embayment
9
New Hampshire
9
United States
9
Columbia Plateau
8
Denver Basin
8
Louisiana
8
Oregon
8
Iowa
7
Arizona
6
Great Plains
6
Middle West
6
North Carolina
6
San Joaquin Valley
6
South Carolina
6
Tennessee, West
6
Virginia
6
Missouri
5
North Dakota
5
Erie County
4
Floridan Aquifer
4
Houston Region
4
Idaho
4
Idaho National Laboratory Region
4
Indiana
4
Lake County
4
Massachusetts
4
Nevada
4
Orange County
4
Ozark Aquifer (Ark.)
4
Puget Sound Region
4
San Joaquin Valley (Calif.)
4
Sarasota County
4
Tennessee, East
4
Utah
4
more ...