Counties Statewide and Major Providers:
Baltimore City Department of Public Works
Washington Suburban Sanitary Commission (WSSC Water)
County-Specific Providers:
Allegany County:
Allegany County Department of Public Works - Utilities Division
Anne Arundel County:
Anne Arundel County Department of Public Works:
Baltimore County:
Baltimore County Department of Public Works
Calvert County:
Calvert County Water and Sewerage
Caroline County:
Caroline County Department of Public Works
Carroll County:
Carroll County Bureau of Utilities
Cecil County:
Cecil County Department of Public Works
Charles County:
Charles County Public Works - Utilities
Dorchester County:
Dorchester County Public Works - Water Management
Frederick County:
Frederick County Division of Water and Sewer Utilities
Garrett County:
Garrett County Public Utilities
Harford County:
Harford County Department of Public Works - Water and Sewer
Howard County:
Howard County Bureau of Utilities
Kent County:
Kent County Water and Wastewater Services
Montgomery County
Montgomery County Department of Environmental Protection
Prince George's County:
Prince George's County Department of the Environment
Queen Anne's County:
Queen Anne's County Department of Public Works - Sanitary District
St. Mary's County:
St. Mary's County Metropolitan Commission
Somerset County:
Somerset County Sanitary District: Website
Talbot County:
Talbot County Department of Public Works: Website
Washington County:
Washington County Division of Environmental Management: Website
Wicomico County:
Wicomico County Public Works - Utilities: Website
Worcester County:
Worcester County Department of Public Works - Water and Wastewater: Website