University of Maryland Extension

County Resources

Find the information that corresponds with your county of residence.  

Allegany County
(301) 759-5051

Anne Arundel County
(410) 222-7189 for well water
(410) 222-7193 for septic systems

Baltimore County
(410) 887-2762

Calvert County
(410) 535 1600

Caroline County
(410) 479-8045 for septic systems for well water

Carroll County
(410) 876-1884

Cecil County
(410) 996-5160

Charles County
(301) 609-6792

Dorchester County
(410) 228-1167 for septic systems for well water 

Frederick County
(301) 600-1726

Garrett County
(301) 334-7760 for well water for septic systems

Harford County
(410) 877-2300 for septic systems for well water

Howard County
(410) 313-1771

Kent County
(410) 778-1361

Montgomery County
(301) 206-4001

Prince George's County
(301) 883-7681

Queen Anne’s County
(410) 643-3535

Somerset County

St. Mary’s County
(301) 475-4321 for septic systems for well water

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