Region
New Mexico
4
Louisiana
3
Oregon
3
Bernalillo County
2
California
2
Colorado
2
Illinois
2
Nevada
2
San Bernardino County
2
Washington (State)
2
Alaska
1
Albuquerque
1
Albuquerque Basin
1
Albuquerque Basin (N.M.)
1
Albuquerque Metropolitan Area
1
Albuquerque Metropolitan Area (N.M.)
1
Arkansas
1
Baton Rouge Region
1
Baton Rouge Region (La.)
1
Bay County
1
Brown Ditch Region
1
Campton (Township)
1
Chester County
1
Columbia Plateau
1
El Paso County
1
Indiana
1
Kane County
1
Kansas
1
Kentucky
1
Logan County
1
Long Island
1
Louisville Region
1
Michigan
1
Mississippi
1
Mojave River Watershed
1
Morongo Valley
1
Nevada Test Site
1
New Jersey
1
New York (State)
1
Nye County
1
Pennsylvania
1
Snake River Plain (Idaho and Or.)
1
Sparta Aquifer (Ark. and La.)
1
Wichita Region
1