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MD tap water quality, city by city
155 cities and towns in MD are served by an active community water system in the EPA's records. Each page below translates that system's EPA-reported history into plain English.
According to EPA SDWIS data, retrieved June 2026.
- Aberdeen
- Abingdon
- Accident
- Accokeek
- Annapolis
- Baltimore
- Bel Air
- Berlin
- Bethesda
- Betterton
- Bishopville
- Boonsboro
- Bowie
- Brandywine
- Brunswick
- California
- Cambridge
- Cascade
- Cecilton
- Centreville
- Charlotte Hall
- Chesapeake Beach
- Chesapeake City
- Chester
- Chestertown
- Childs
- Chrisfield
- Church Hill
- Claiborne
- Clarksburg
- Colora
- Columbia
- Crofton
- Cumberland
- Darlington
- Delmar
- Denton
- Dunkirk
- Earleville
- East Greenville
- East New Market
- Easton
- Eldersburg
- Elkton
- Ellicott City
- Emmitsburg
- Federalsburg
- Finksburg
- Fort Meade
- Frederick
- Frostburg
- Fruitland
- Funkstown
- Gaitherburg
- Gaithersburg
- Gambrills
- Glen Arm
- Grantsville
- Grasonville
- Greensboro
- Hagerstown
- Hampstead
- Hancock
- Havre De Grace
- Hebron
- Hollywood
- Huntingtown
- Hurlock
- Indian Head
- Jessup
- Kennedyville
- La Plata
- Landover
- Laurel
- Lavale
- Leonardtown
- Lexington Park
- Linthicum Heights
- Lonaconing
- Lothian
- Luke
- Lusby
- Manchester
- Marbury
- Middletown
- Midlothian
- Millersville
- Millington
- Mount Airy
- Mountain Lake Park
- Mt. Savage
- Myersville
- New Windsor
- Newburg
- North Beach
- North East
- Oakland
- Ocean City
- Ocean Pines
- Oxford
- Parsonsburg
- Patuxent River
- Perry Point
- Perryville
- Pittsville
- Pocomoke City
- Poolesville
- Port Deposit
- Port Republic
- Potomac
- Preston
- Prince Frederick
- Princess Anne
- Private
- Queen Anne
- Queenstown
- Randalstown
- Rawlings
- Reistertown
- Ridgely
- Rising Sun
- Rock Hall
- Salisbury
- Secretary
- Severn
- Severna Park
- Sharpsburg
- Sharptown
- Sherwood Forest
- Silver Spring
- Smithsburg
- Snow Hill
- St Michaels
- St. Leonard
- St. Michaels
- Stevenson
- Stevensville
- Street
- Sunderland
- Swanton
- Sykesville
- Taneytown
- Thurmont
- Timonium
- Tylerton
- Union Bridge
- Vienna
- Waldorf
- Walkersville
- Westernport
- Westminster
- White Hall
- Willards
- Williamsport
- Woodsboro