Find the information that corresponds with your county of residence.
Allegany County
301-759-5051
joy.miller@maryland.gov
Anne Arundel County
410-222-7189 for Well Water
410-222-7193 for Septic Systems
Baltimore County
410-887-2762
groundwater@baltimorecountymd.gov
Calvert County
410-535-1600
Caroline County for Septic Systems
Caroline County for Well Water
410-479-8045
Carroll County for Septic Systems
Carroll County for Well Water
410-876-1884
Cecil County
410-996-5160
Charles County
301-609-6792
Dorchester County for Septic Systems
Dorchester County for Well Water
410-228-1167
Frederick County
301-600-1726
Garrett County for Septic Systems
Garrett County for Well Water
301-334-7760
environmental.health@maryland.gov
Harford County for Septic Systems
Harford County for Well Water
410-877-2300
Howard County
410-313-1771
Kent County
410-778-1361
john.beskid@maryland.gov
Montgomery County
301-206-4001
Prince George's County
301-883-7681
Queen Anne’s County
410-643-3535
Somerset County
443-523-1730
St. Mary’s County for Septic Systems
St. Mary's County for Well Water
301-475-4321
smchd.healthdept@maryland.gov
Talbot County for Septic Systems
Talbot County for Well Water
410-770-6880
Washington County
240-313-2600
Wicomico County
410-546-4446
Worcester County for Septic Systems
Worcester County for Well Water
410-632-1220
Last update 5/18/2022 EM