North Dakota

North Dakota drinking water quality

Every public water system in North Dakota we've verified. Each report covers one calendar year and shows the utility's own measured contaminant levels against federal limits.

Want the national picture? See where North Dakota lands in our ranking of the states with the most open health-based water violations, pulled from the EPA's own records for every U.S. public water system.

308 water systems mapped in North Dakota

Browse all 308 systems A–Z:1

• Wing City of (2024)
  1 contaminants measured· 1 at or above the limit
• Cando City of (2024)
  1 contaminants measured· 1 at or above the limit
• Wildrose City of (2025)
  1 contaminants measured· 1 at or above the limit
• Casselton City of (2024)
  1 contaminants measured
• Carrington City of (2024)
  1 contaminants measured
• Minot City of (2024)
  1 contaminants measured
• Cathay City of (2025)
  1 contaminants measured
• Fargo (2024)
  18 contaminants measured
• Dunseith City of (2025)
  1 contaminants measured
• Hettinger City of (2025)
  1 contaminants measured
• Reeder City of (2025)
  1 contaminants measured
• Dazey City of (2025)
  1 contaminants measured
• Litchville City of (2024)
  1 contaminants measured
• Nome City of (2025)
  1 contaminants measured
• Oriska City of (2024)
  1 contaminants measured
• Sanborn City of (2023)
  1 contaminants measured
• Sibley City of (2024)
  1 contaminants measured
• Valley City City of (2024)
  1 contaminants measured
• Wimbledon City of (2025)
  1 contaminants measured
• Barnes Rural Water District (2023)
  1 contaminants measured
• Leeds City of (2025)
  1 contaminants measured
• Maddock City of (2024)
  1 contaminants measured
• Minnewaukan City of (2025)
  1 contaminants measured
• Oberon City of (2025)
  1 contaminants measured
• Medora City of (2024)
  1 contaminants measured
• Bottineau City of (2025)
  1 contaminants measured
• Lansford City of (2023)
  1 contaminants measured
• Maxbass City of (2025)
  1 contaminants measured
• Souris City of (2023)
  1 contaminants measured
• Westhope City of (2025)
  1 contaminants measured
• Willow City City of (2023)
  1 contaminants measured
• All Seasons Wd-system I (2025)
  1 contaminants measured
• All Seasons Wd-system Iii (2024)
  1 contaminants measured
• Bowman City of (2024)
  1 contaminants measured
• Rhame City of (2024)
  1 contaminants measured
• Scranton City of (2025)
  1 contaminants measured
• Bowbells City of (2025)
  1 contaminants measured
• Columbus City of (2023)
  1 contaminants measured
• Flaxton City of (2025)
  1 contaminants measured
• Lignite City of (2025)
  1 contaminants measured
• Portal City of (2025)
  1 contaminants measured
• Powers Lake City of (2024)
  1 contaminants measured
• Bismarck City of (2024)
  1 contaminants measured
• Imperial Valley Water Co (2024)
  1 contaminants measured
• Dakota Adventist Academy (2025)
  1 contaminants measured
• Country Club Co-op (2023)
  1 contaminants measured
• Lincoln City of (2023)
  1 contaminants measured
• Apple Valley Coop (2023)
  1 contaminants measured
• Wilton City of (2023)
  1 contaminants measured
• South Central Regional Water District (2025)
  1 contaminants measured
• South Central Rwd North Burleigh (2024)
  1 contaminants measured
• Menards-bidc (2025)
  1 contaminants measured
• Amenia City of (2025)
  1 contaminants measured
• Argusville City of (2025)
  1 contaminants measured
• Arthur City of (2025)
  1 contaminants measured
• Buffalo City of (2023)
  1 contaminants measured
• Davenport City of (2023)
  1 contaminants measured
• Gardner City of (2024)
  1 contaminants measured
• Grandin City of (2025)
  1 contaminants measured
• Harwood City of (2024)
  1 contaminants measured
• Horace City of (2025)
  1 contaminants measured
• Horseshoe Bend (2024)
  1 contaminants measured
• Hunter City of (2024)
  1 contaminants measured
• Kindred City of (2023)
  1 contaminants measured
• Mapleton City of (2024)
  1 contaminants measured
• Page City of (2025)
  1 contaminants measured
• Tower City City of (2023)
  1 contaminants measured
• West Fargo City of (2023)
  1 contaminants measured
• Cass Rural Water District-phase I (2024)
  1 contaminants measured
• Cass Rural Water District-phase Ii (2025)
  1 contaminants measured
• Cass Rural Water District-phase Iii (2024)
  1 contaminants measured
• Oxbow City of (2024)
  1 contaminants measured
• Riverdale Subdivision (2025)
  1 contaminants measured
• Fradets Orchard Water System (2023)
  1 contaminants measured
• Country Acres Water Co (2024)
  1 contaminants measured
• Cass Rural Water District Fargo (2023)
  1 contaminants measured
• Langdon City of (2024)
  1 contaminants measured
• Milton City of (2024)
  1 contaminants measured
• Nekoma City of (2024)
  1 contaminants measured
• Osnabrock City of (2025)
  1 contaminants measured
• Northeast Rwd-langdon Branch (2023)
  1 contaminants measured
• Ellendale City of (2023)
  1 contaminants measured
• Forbes City of (2024)
  1 contaminants measured
• Fullerton City of (2024)
  1 contaminants measured
• Monango City of (2025)
  1 contaminants measured
• Oakes City of (2024)
  1 contaminants measured
• Southeast Wud (west) (2025)
  1 contaminants measured
• Maple River Hutterian Association (2025)
  1 contaminants measured
• Crosby City of (2025)
  1 contaminants measured
• Fortuna City of (2023)
  1 contaminants measured
• Noonan City of (2024)
  1 contaminants measured
• Dodge City of (2025)
  1 contaminants measured
• Dunn Center City of (2025)
  1 contaminants measured
• Halliday City of (2025)
  1 contaminants measured
• Killdeer City of (2025)
  1 contaminants measured
• Manning Water Board (2025)
  1 contaminants measured
• New Hradec Waterworks (2025)
  1 contaminants measured
• New Rockford City of (2025)
  1 contaminants measured
• Sheyenne City of (2023)
  1 contaminants measured
• Hague City of (2024)
  1 contaminants measured
• Hazelton City of (2023)
  1 contaminants measured
• Linton City of (2025)
  1 contaminants measured
• Strasburg City of (2024)
  1 contaminants measured
• State Line Water Coop Inc (2025)
  1 contaminants measured
• South Central Rwd-emmons (2025)
  1 contaminants measured
• Glenfield City of (2023)
  1 contaminants measured
• Greater Ramsey Wd - Carrington (2023)
  1 contaminants measured
• Beach City of (2023)
  1 contaminants measured
• Golva City of (2024)
  1 contaminants measured
• Sentinel Butte City of (2025)
  1 contaminants measured
• Arvilla Water Users Association (2025)
  1 contaminants measured
• Emerado City of (2024)
  1 contaminants measured
• Grand Forks Regional Wtp (2024)
  1 contaminants measured
• Larimore City of (2023)
  1 contaminants measured
• Northwood City of (2023)
  1 contaminants measured
• Agassiz Water Users District (2025)
  1 contaminants measured
• East Central Regional Wd-gf (2023)
  1 contaminants measured
• Forest River Colony (2025)
  1 contaminants measured
• Carson City of (2023)
  1 contaminants measured
• Elgin City of (2025)
  1 contaminants measured
• New Leipzig City of (2023)
  1 contaminants measured
• Binford City of (2024)
  1 contaminants measured
• Cooperstown City of (2024)
  1 contaminants measured
• Hannaford City of (2025)
  1 contaminants measured
• Dakota Rural Water District North (2024)
  1 contaminants measured
• Dakota Rural Water District South (2024)
  1 contaminants measured
• Mott City of (2023)
  1 contaminants measured
• New England City of (2023)
  1 contaminants measured
• Regent City of (2025)
  1 contaminants measured
• Robinson City of (2023)
  1 contaminants measured
• Steele City of (2024)
  1 contaminants measured
• Tuttle City of (2025)
  1 contaminants measured
• Edgeley City of (2025)
  1 contaminants measured
• Jud City of (2023)
  1 contaminants measured
• Kulm City of (2025)
  1 contaminants measured
• Lamoure City of (2025)
  1 contaminants measured
• Fairview Colony (2023)
  1 contaminants measured
• Verona City of (2023)
  1 contaminants measured
• Berlin City of (2025)
  1 contaminants measured
• Willowbank Colony (2023)
  1 contaminants measured
• Gackle City of (2023)
  1 contaminants measured
• Napoleon City of (2025)
  1 contaminants measured
• Drake City of (2023)
  1 contaminants measured
• Granville City of (2024)
  1 contaminants measured
• Karlsruhe City of (2023)
  1 contaminants measured
• Towner City of (2025)
  1 contaminants measured
• Upham City of (2025)
  1 contaminants measured
• Velva City of (2023)
  1 contaminants measured
• Ashley City of (2024)
  1 contaminants measured
• Lehr City of (2024)
  1 contaminants measured
• Wishek City of (2025)
  1 contaminants measured
• Zeeland City of (2023)
  1 contaminants measured
• Alexander City of (2024)
  1 contaminants measured
• Watford City City of (2024)
  1 contaminants measured
• Watford City Mobile Home Park (2025)
  1 contaminants measured
• Mckenzie County Wrd (2024)
  1 contaminants measured
• Arnegard City of (2025)
  1 contaminants measured
• Watford Residence Suites (2025)
  1 contaminants measured
• Coleharbor City of (2025)
  1 contaminants measured
• Garrison City of (2025)
  1 contaminants measured
• Max City of (2024)
  1 contaminants measured
• Mercer City of (2024)
  1 contaminants measured
• Riverdale City of (2025)
  1 contaminants measured
• Turtle Lake City of (2023)
  1 contaminants measured
• Underwood City of (2025)
  1 contaminants measured
• Washburn City of (2025)
  1 contaminants measured
• Mclean-sheridan Water District-system 1 (2025)
  1 contaminants measured
• Garrison Rural Water District (2025)
  1 contaminants measured
• Mclean-sheridan Water District-system 3 (2024)
  1 contaminants measured
• Mclean-sheridan Water District-system 2 (2023)
  1 contaminants measured
• Rainbow Energy Center (2023)
  1 contaminants measured
• Beulah City of (2024)
  1 contaminants measured
• Golden Valley City of (2025)
  1 contaminants measured
• Hazen City of (2024)
  1 contaminants measured
• Pick City City of (2025)
  1 contaminants measured
• Stanton City of (2023)
  1 contaminants measured
• Zap City of (2025)
  1 contaminants measured
• Omnd Water Treatment Plant (2025)
  1 contaminants measured
• Almont City of (2023)
  1 contaminants measured
• Flasher City of (2023)
  1 contaminants measured
• Glen Ullin City of (2024)
  1 contaminants measured
• Hebron City of (2023)
  1 contaminants measured
• Mandan City of (2023)
  1 contaminants measured
• Crown Butte Coop (2025)
  1 contaminants measured
• Riverview Heights (2025)
  1 contaminants measured
• New Salem City of (2024)
  1 contaminants measured
• Missouri West Water System (2024)
  1 contaminants measured
• Southwest Wa-crown Butte(missouri West) (2025)
  1 contaminants measured
• Southwest Wa-tower Hill (missouri West) (2025)
  1 contaminants measured
• Southwest Wa-junction Inn(missouri West) (2025)
  1 contaminants measured
• Plaza City of (2025)
  1 contaminants measured
• Ross City of (2023)
  1 contaminants measured
• Stanley City of (2025)
  1 contaminants measured
• North Prairie Rwd System Iv (2025)
  1 contaminants measured
• Aneta City of (2023)
  1 contaminants measured
• Lakota City of (2022)
  1 contaminants measured
• Mcville City of (2025)
  1 contaminants measured
• Michigan City of (2024)
  1 contaminants measured
• Tolna City of (2025)
  1 contaminants measured
• Tri-county Water District (2024)
  1 contaminants measured
• Center City of (2023)
  1 contaminants measured
• Milton R Young Station Well - Mpc (2025)
  1 contaminants measured
• Cavalier City of (2025)
  1 contaminants measured
• Drayton City of (2025)
  1 contaminants measured
• Mountain City of (2025)
  1 contaminants measured
• Neche City of (2025)
  1 contaminants measured
• Pembina City of (2025)
  1 contaminants measured
• St Thomas City of (2025)
  1 contaminants measured
• Walhalla City of (2025)
  1 contaminants measured
• Northeast Rwd- North Valley Branch (2025)
  1 contaminants measured
• Rugby City of (2025)
  1 contaminants measured
• Selz Water Users Association (2024)
  1 contaminants measured
• All Seasons Wd-system V (2023)
  1 contaminants measured
• Devils Lake City of (2024)
  1 contaminants measured
• Edmore City of (2024)
  1 contaminants measured
• Greater Ramsey Water District (2023)
  1 contaminants measured
• Enderlin City of (2024)
  1 contaminants measured
• Lisbon City of (2023)
  1 contaminants measured
• Sheldon City of (2025)
  1 contaminants measured
• Southeast Wud (central-lisbon) (2024)
  1 contaminants measured
• Grant Colony (2023)
  1 contaminants measured
• Glenburn City of (2024)
  1 contaminants measured
• Mohall City of (2025)
  1 contaminants measured
• Sherwood City of (2025)
  1 contaminants measured
• Abercrombie City of (2024)
  1 contaminants measured
• Barney City of (2023)
  1 contaminants measured
• Christine City of (2023)
  1 contaminants measured
• Colfax City of (2024)
  1 contaminants measured
• Fairmount City of (2025)
  1 contaminants measured
• Hankinson City of (2023)
  1 contaminants measured
• Lidgerwood City of (2025)
  1 contaminants measured
• Mantador City of (2024)
  1 contaminants measured
• Mooreton City of (2024)
  1 contaminants measured
• Wahpeton City of (2024)
  1 contaminants measured
• Walcott City of (2025)
  1 contaminants measured
• Wyndmere City of (2023)
  1 contaminants measured
• Southeast Wud (east) (2025)
  1 contaminants measured
• Rolette City of (2025)
  1 contaminants measured
• Rolla City of (2023)
  1 contaminants measured
• St John City of (2025)
  1 contaminants measured
• All Seasons Wd-system Iv (2023)
  1 contaminants measured
• Forman City of (2025)
  1 contaminants measured
• Gwinner City of (2025)
  1 contaminants measured
• Rutland City of (2025)
  1 contaminants measured
• Milnor City of (2024)
  1 contaminants measured
• Sundale Hutterian Association (2024)
  1 contaminants measured
• Goodrich City of (2025)
  1 contaminants measured
• Mc Clusky City of (2025)
  1 contaminants measured
• Marmarth City of (2025)
  1 contaminants measured
• Belfield City of (2025)
  1 contaminants measured
• Dickinson City of (2025)
  1 contaminants measured
• Gladstone City of (2025)
  1 contaminants measured
• Richardton City of (2023)
  1 contaminants measured
• South Heart City of (2023)
  1 contaminants measured
• Taylor City of (2025)
  1 contaminants measured
• Southwest Water Authority (2025)
  1 contaminants measured
• Finley City of (2024)
  1 contaminants measured
• Hope City of (2025)
  1 contaminants measured
• Sharon City of (2025)
  1 contaminants measured
• Cleveland City of (2025)
  1 contaminants measured
• Jamestown City of (2023)
  1 contaminants measured
• Kensal City of (2024)
  1 contaminants measured
• Medina City of (2025)
  1 contaminants measured
• Streeter City of (2024)
  1 contaminants measured
• Woodworth City of (2024)
  1 contaminants measured
• Montpelier City of (2025)
  1 contaminants measured
• Stutsman Rural Water District (2023)
  1 contaminants measured
• Bisbee City of (2025)
  1 contaminants measured
• Rock Lake City of (2024)
  1 contaminants measured
• Hatton City of (2023)
  1 contaminants measured
• Hillsboro City of (2025)
  1 contaminants measured
• Mayville City of (2025)
  1 contaminants measured
• Portland City of (2025)
  1 contaminants measured
• East Central Regional Wd-traill (2024)
  1 contaminants measured
• Grafton City of (2024)
  1 contaminants measured
• Minto City of (2023)
  1 contaminants measured
• Park River City of (2024)
  1 contaminants measured
• Walsh Rural Water District (2023)
  1 contaminants measured
• Fordville Public School (2024)
  1 contaminants measured
• Berthold City of (2024)
  1 contaminants measured
• Burlington City of (2025)
  1 contaminants measured
• Kenmare City of (2025)
  1 contaminants measured
• Makoti City of (2025)
  1 contaminants measured
• Ryder City of (2024)
  1 contaminants measured
• Sawyer City of (2024)
  1 contaminants measured
• Surrey City of (2025)
  1 contaminants measured
• North Prairie Rwd-system Iii (2024)
  1 contaminants measured
• Upper Souris Water District-system I (2025)
  1 contaminants measured
• North Prairie Rwd-system 1&2 (2024)
  1 contaminants measured
• Upper Souris Water District-system Ii (2025)
  1 contaminants measured
• West River Water and Sewer (2024)
  1 contaminants measured
• Bowdon City of (2025)
  1 contaminants measured
• Fessenden City of (2024)
  1 contaminants measured
• Harvey City of (2025)
  1 contaminants measured
• Sykeston City of (2023)
  1 contaminants measured
• Central Plains Water District (2024)
  1 contaminants measured
• Grenora City of (2025)
  1 contaminants measured
• Ray City of (2023)
  1 contaminants measured
• Tioga City of (2023)
  1 contaminants measured
• Trenton Water Users Assoc (2024)
  1 contaminants measured
• Williston City of (2023)
  1 contaminants measured
• Inspire Communities-springbrook (2025)
  1 contaminants measured
• Northwest Rural Water District (2023)
  1 contaminants measured
• R & T Water System (2024)
  1 contaminants measured
• Fendee Estates (2024)
  1 contaminants measured
• Prairie View Hoa (2024)
  1 contaminants measured
• The Bluffs Hoa (2024)
  1 contaminants measured
• 13 Mile Center (2023)
  1 contaminants measured