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CO tap water quality, city by city
313 cities and towns in CO 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.
- Administrative Contact
- Agate
- Aguilar
- Akron
- Alamosa
- Allenspark
- Alma
- Almont
- Antonito
- Arapahoe
- Arvada
- Aspen
- Ault
- Aurora
- Austin
- Bailey
- Basalt
- Bayfield
- Bennett
- Berthoud
- Bethune
- Beulah
- Black Hawk
- Blanca
- Boone
- Boulder
- Branson
- Breckenridge
- Briggsdale
- Brighton
- Bristol
- Brookside
- Broomfield
- Buena Vista
- Buffalo Creek
- Burlington
- Byers
- Calhan
- Campo
- Canon City
- Carbondale
- Castle Pines
- Castle Rock
- Cedaredge
- Centennial
- Center
- Central City
- Cheraw
- Cheyenne Wells
- Chromo
- Cimarron
- Clark
- Clifton
- Coal Creek
- Cokedale
- Collbran
- Colorado City
- Colorado Springs
- Commerce City
- Conejos
- Conifer
- Copper Mountain
- Cortez
- Craig
- Crawford
- Creede
- Crested Butte
- Crestone
- Cripple Creek
- Crook
- Dacono
- Debeque
- Deer Trail
- Del Norte
- Delta
- Denver
- Dillon
- Dinosaur
- Divide
- Dolores
- Dove Creek
- Dumont
- Durango
- Eads
- Eagle
- Eastlake
- Eaton
- Eckert
- Eckley
- Edgewater
- Edwards
- El Jebel
- Elbert
- Elizabeth
- Empire
- Englewood
- Erie
- Estes Park
- Evans
- Evergreen
- Fairplay
- Falcon
- Federal Heights
- Firestone
- Flagler
- Fleming
- Florence
- Florissant
- Fort Carson
- Fort Collins
- Fort Lupton
- Fort Morgan
- Fountain
- Fowler
- Fraser
- Frederick
- Frisco
- Ft Garland
- Ft Morgan
- Garcia
- Gateway
- Genoa
- Georgetown
- Gilcrest
- Glendale
- Glenwood Springs
- Golden
- Granada
- Granby
- Grand Junction
- Grand Lake
- Greeley
- Greenwood Village
- Gunnison
- Gypsum
- Hasty
- Haswell
- Haxtun
- Hayden
- Henderson
- Hesperus
- Highlands Ranch
- Hillrose
- Holly
- Holyoke
- Hot Sulphur Springs
- Hotchkiss
- Hudson
- Hugo
- Idaho Springs
- Ignacio
- Iliff
- Indian Hills
- Jamestown
- Johnstown
- Julesburg
- Karval
- Keenesburg
- Kersey
- Keystone
- Kim
- Kiowa
- Kremmling
- La Jara
- La Junta
- La Porte
- La Veta
- Lafayette
- Lake City
- Lake George
- Lakewood
- Lamar
- Larkspur
- Las Animas
- Lasalle
- Leadville
- Limon
- Littleton
- Livermore
- Lochbuie
- Log Lane Village
- Longmont
- Louisville
- Loveland
- Lucerne
- Lyons
- Manassa
- Mancos
- Manitou Springs
- Manzanola
- Mcclave
- Meeker
- Mesa
- Milliken
- Minturn
- Moffat
- Monte Vista
- Montrose
- Monument
- Morrison
- Mount Crested Butte
- Nathrop
- Naturita
- Nederland
- New Castle
- New Raymer
- Niwot
- Northglenn
- Norwood
- Nucla
- Nunn
- Oak Creek
- Olathe
- Olney Springs
- Ophir
- Ordway
- Otis
- Ouray
- Ovid
- Pagosa Springs
- Palisade
- Palmer Lake
- Paoli
- Paonia
- Parachute
- Paradox
- Parker
- Peetz
- Penrose
- Peyton
- Pierce
- Placerville
- Platteville
- Poncha Springs
- Pritchett
- Pueblo
- Pueblo West
- Ramah
- Rangely
- Red Cliff
- Red Feather Lakes
- Redstone
- Redvale
- Rico
- Ridgway
- Rifle
- Rockvale
- Rocky Ford
- Romeo
- Rye
- Saguache
- Salida
- San Luis
- Sanford
- Sedalia
- Sedgwick
- Seibert
- Severance
- Sheridan Lake
- Silt
- Silver Plume
- Silverthorne
- Silverton
- Simla
- Snowmass
- Snowmass Village
- Somerset
- South Fork
- Springfield
- Steamboat
- Steamboat Springs
- Sterling
- Strasburg
- Stratton
- Sugar City
- Superior
- Swink
- Tabernash
- Telluride
- Thornton
- Towaoc
- Trinidad
- Tustin
- Two Buttes
- Usaf Academy
- Vail
- Victor
- Vilas
- Vona
- Walden
- Walsenburg
- Walsh
- Ward
- Watkins
- Weldona
- Wellington
- Westcliffe
- Westcreek
- Westminster
- Wetmore
- Wheat Ridge
- Wiggins
- Wiley
- Williamsburg
- Windsor
- Winter Park
- Wolcott
- Woodland
- Woodland Park
- Woody Creek
- Wray
- Yampa
- Yuma