Maryland Water Quality Reports
Comprehensive water quality data for 147 cities across Maryland. View EPA-verified contaminant levels and get filter recommendations.
147
Cities
26
Safe
118
Monitor
3
At Risk
Cities in Maryland
Baltimore
People Served1600K
Contaminants Tested20
Above Guidelines7
View Report →
Adelphi
People Served632K
Contaminants Tested19
Above Guidelines2
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Ashton-Sandy Spring
People Served632K
Contaminants Tested19
Above Guidelines2
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Aspen Hill
People Served632K
Contaminants Tested19
Above Guidelines2
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Beltsville
People Served632K
Contaminants Tested19
Above Guidelines2
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Berwyn Heights
People Served632K
Contaminants Tested19
Above Guidelines2
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Bethesda
People Served632K
Contaminants Tested19
Above Guidelines2
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Bladensburg
People Served632K
Contaminants Tested19
Above Guidelines2
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Brentwood
People Served632K
Contaminants Tested19
Above Guidelines2
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Brookeville
People Served632K
Contaminants Tested19
Above Guidelines2
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Brookmont
People Served632K
Contaminants Tested19
Above Guidelines2
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Burnt Mills
People Served632K
Contaminants Tested19
Above Guidelines2
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Burtonsville
People Served632K
Contaminants Tested19
Above Guidelines2
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Cabin John
People Served632K
Contaminants Tested19
Above Guidelines2
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Calverton
People Served632K
Contaminants Tested19
Above Guidelines2
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Capitol Heights
People Served632K
Contaminants Tested19
Above Guidelines2
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Cedar Heights
People Served632K
Contaminants Tested19
Above Guidelines2
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Cheverly
People Served632K
Contaminants Tested19
Above Guidelines2
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Chevy Chase Section Five
People Served632K
Contaminants Tested19
Above Guidelines2
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Chevy Chase Section Three
People Served632K
Contaminants Tested19
Above Guidelines2
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Chevy Chase View
People Served632K
Contaminants Tested19
Above Guidelines2
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Chevy Chase Village
People Served632K
Contaminants Tested19
Above Guidelines2
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Chevy Chase
People Served632K
Contaminants Tested19
Above Guidelines2
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Chillum
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Cloverly
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Colesville
People Served632K
Contaminants Tested19
Above Guidelines2
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College Park
People Served632K
Contaminants Tested19
Above Guidelines2
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Colmar Manor
People Served632K
Contaminants Tested19
Above Guidelines2
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Coral Hills
People Served632K
Contaminants Tested19
Above Guidelines2
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Cottage City
People Served632K
Contaminants Tested19
Above Guidelines2
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Darnestown
People Served632K
Contaminants Tested19
Above Guidelines2
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Derwood
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
East Riverdale
People Served632K
Contaminants Tested19
Above Guidelines2
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Edmonston
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Fairland
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Fairmount Heights
People Served632K
Contaminants Tested19
Above Guidelines2
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Forest Glen
People Served632K
Contaminants Tested19
Above Guidelines2
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Forest Heights
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Four Corners
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Friendship Heights Village
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Gaithersburg
People Served632K
Contaminants Tested19
Above Guidelines2
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Garrett Park
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Glassmanor
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Glen Echo
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Glenarden
People Served632K
Contaminants Tested19
Above Guidelines2
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Glenmont
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Greenbelt
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Hillandale
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Hillcrest Heights
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Hyattsville
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Kemp Mill
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Kensington
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Konterra
People Served632K
Contaminants Tested19
Above Guidelines2
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Landover Hills
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Landover
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Langley Park
People Served632K
Contaminants Tested19
Above Guidelines2
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Lanham
People Served632K
Contaminants Tested19
Above Guidelines2
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Layhill
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Leisure World
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Marlow Heights
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Martin's Additions
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Maryland Park
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Mount Rainier
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
National Harbor
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
New Carrollton
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
North Bethesda
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
North Brentwood
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
North Chevy Chase
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
North Kensington
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
North Potomac
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Olney
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Peppermill Village
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Potomac
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Redland
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Riverdale Park
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Rockville
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Seabrook
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Seat Pleasant
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Silver Hill
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Silver Spring
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Somerset
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
South Kensington
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
South Laurel
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Spencerville
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Springdale
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Suitland
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Summerfield
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Takoma Park
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Travilah
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
University Park
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Walker Mill
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Washington Grove
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Wheaton
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
White Oak
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Woodlawn
People Served632K
Contaminants Tested19
Above Guidelines2
View Report →
Columbia
People Served286K
Contaminants Tested4
Above Guidelines0
View Report →
Abingdon
People Served105K
Contaminants Tested20
Above Guidelines6
View Report →
Bel Air South
People Served105K
Contaminants Tested67
Above Guidelines2
View Report →
Hagerstown
People Served92K
Contaminants Tested63
Above Guidelines0
View Report →
Millersville
People Served63K
Contaminants Tested20
Above Guidelines1
View Report →
Odenton
People Served63K
Contaminants Tested64
Above Guidelines0
View Report →
Fort Meade
People Served62K
Contaminants Tested67
Above Guidelines0
View Report →
Bowie
People Served25K
Contaminants Tested63
Above Guidelines0
View Report →
Easton
People Served16K
Contaminants Tested63
Above Guidelines1
View Report →
Elkton
People Served16K
Contaminants Tested65
Above Guidelines2
View Report →
Aberdeen
People Served15K
Contaminants Tested64
Above Guidelines0
View Report →
Cambridge
People Served15K
Contaminants Tested63
Above Guidelines1
View Report →
Havre de Grace
People Served14K
Contaminants Tested67
Above Guidelines0
View Report →
Mount Airy
People Served10K
Contaminants Tested63
Above Guidelines0
View Report →
North East
People Served9K
Contaminants Tested65
Above Guidelines0
View Report →
Walkersville
People Served8K
Contaminants Tested64
Above Guidelines1
View Report →
Frederick
People Served8K
Contaminants Tested63
Above Guidelines0
View Report →
Aberdeen Proving Ground
People Served6K
Contaminants Tested66
Above Guidelines0
View Report →
Poolesville
People Served5K
Contaminants Tested64
Above Guidelines2
View Report →
North Beach
People Served5K
Contaminants Tested20
Above Guidelines2
View Report →
Berlin
People Served5K
Contaminants Tested20
Above Guidelines3
View Report →
Charlestown
People Served4K
Contaminants Tested62
Above Guidelines0
View Report →
Snow Hill
People Served4K
Contaminants Tested20
Above Guidelines1
View Report →
Oakland
People Served3K
Contaminants Tested20
Above Guidelines2
View Report →
Leonardtown
People Served3K
Contaminants Tested14
Above Guidelines1
View Report →
Urbana
People Served3K
Contaminants Tested62
Above Guidelines0
View Report →
Smithsburg
People Served3K
Contaminants Tested4
Above Guidelines1
View Report →
Federalsburg
People Served2K
Contaminants Tested20
Above Guidelines1
View Report →
Emmitsburg
People Served2K
Contaminants Tested20
Above Guidelines1
View Report →
Severn
People Served2K
Contaminants Tested62
Above Guidelines2
View Report →
Williamsport
People Served2K
Contaminants Tested3
Above Guidelines0
View Report →
Herald Harbor
People Served2K
Contaminants Tested64
Above Guidelines0
View Report →
Westernport
People Served2K
Contaminants Tested20
Above Guidelines1
View Report →
Hurlock
People Served2K
Contaminants Tested64
Above Guidelines0
View Report →
Perry Point
People Served2K
Contaminants Tested20
Above Guidelines1
View Report →
Perryville
People Served2K
Contaminants Tested65
Above Guidelines0
View Report →
Hancock
People Served2K
Contaminants Tested20
Above Guidelines4
View Report →
Funkstown
People Served1K
Contaminants Tested3
Above Guidelines0
View Report →
Trappe
People Served1K
Contaminants Tested64
Above Guidelines0
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Oxford
People Served1K
Contaminants Tested62
Above Guidelines1
View Report →
Preston
People Served1K
Contaminants Tested64
Above Guidelines1
View Report →
Mount Aetna
People Served1K
Contaminants Tested63
Above Guidelines0
View Report →
St. Michaels
People Served1K
Contaminants Tested63
Above Guidelines1
View Report →
Chesapeake City
People Served1K
Contaminants Tested28
Above Guidelines0
View Report →
La Plata
People Served1K
Contaminants Tested63
Above Guidelines1
View Report →
Secretary
People Served1K
Contaminants Tested57
Above Guidelines1
View Report →
East New Market
People Served0K
Contaminants Tested64
Above Guidelines0
View Report →
Severna Park
People Served0K
Contaminants Tested63
Above Guidelines0
View Report →
St. James
People Served0K
Contaminants Tested64
Above Guidelines0
View Report →
Ellicott City
People Served0K
Contaminants Tested63
Above Guidelines0
View Report →
Laurel
People Served0K
Contaminants Tested20
Above Guidelines0
View Report →
St. Leonard
People Served0K
Contaminants Tested14
Above Guidelines2
View Report →