Region
Kansas
6
Louisiana
4
Columbia Plateau
2
High Plains Aquifer
2
Jefferson County
2
Kentucky
2
Naval Ordnance Station Louisville (Ky.)
2
New Hampshire
2
New Jersey
2
Pemigewasset River Watershed
2
Rancocas Creek Watershed
2
Appalachian Region
1
Baton Rouge Region
1
Baton Rouge Region (La.)
1
Central Oklahoma Aquifer (Okla.)
1
Cheyenne
1
Colorado
1
Edwards Aquifer
1
Edwards Aquifer (Tex.)
1
El Paso County
1
Florida
1
Fountain Creek
1
Genesee County
1
Great Basin
1
Hays County
1
Hays County (Tex.)
1
Hillsborough County
1
Hillsborough County (Fla.)
1
Indiana
1
Middle West
1
Minneapolis Region
1
Minnesota
1
Missouri
1
New York (State)
1
Ogallala Aquifer
1
Oklahoma
1
Oregon
1
Texas
1
Trinity Aquifer
1
Trinity Aquifer (Tex.)
1
Vernon Parish
1
Wyoming
1