Alabama
- Anniston Water Works and Sewer Board
- Athens Utilities
- Auburn Water and Sewer Department
- Birmingham Water Works Board
- Cov. Co. Water Authority
- East Alabama Water, Sewer and Fire Protection District
- Florence Water & Wastewater Department
- Fort Payne Improvement Authority
- Hobson City
- Huntsville Utilities
- Lee Chambers Utilites District
- Limestone County Water Authority
- Mobile Area Water and Sewer System
- Montgomery North Water Authority
- Montgomery Water Works
- Roanoke
- Scottsboro Water Board
- Summerdale Utilities Department
- Utilities Board of the Stevenson
- Sylacauga Utilities Board
- Trussville Utilities
- Tuscumbia Utilities
