North Dakota drinking water record

Health-based drinking water violations in North Dakota, by year
15: 11111516: 661617: 331718: 771819: 221920: 112021: 222122: 442223: 552324: 15152425: 9925

Busiest year: 2024 (15 violations). Counted by the year the violation period began. Source: EPA SDWIS.

  • Community water systems: 305 active systems serve about 706,282 people. 271 of them (89%) serve 3,300 people or fewer; 205 draw mainly on groundwater and 91 on surface water.
  • Health-based violations since 2015: 66, at 30 systems (10% of all systems). That share is 3rd lowest of 50 states.
  • Most common problems: contaminant averages over the limit (30); disinfectant levels (6); E. coli (5). Source: EPA SDWIS
  • Largest system: Fargo City Of, about 120,762 people, with 2 health-based violations since 2015. Source: EPA SDWIS
  • Housing age: the median North Dakota home was built in 1982 (US 1980). Source: US Census Bureau, ACS 2020–2024 (table B25035)
The largest water systems in North Dakota
SystemPeople servedMain sourceHealth violations since 2015
Fargo City Of120,762Surface water2
Bismarck City Of72,417Mixed0
Grand Forks Regional Wtp57,339Surface water0
Minot City Of48,743Groundwater0
West Fargo City Of34,858Bought surface water0
Williston City Of26,426Surface water0

Source: EPA SDWIS.

Share of water systems with a health-based violation since 2015: North Dakota and nearby states
  • North Dakota9.8%
  • Minnesota11.2%
  • Montana18.3%
  • South Dakota40.2%

North Dakota is 1st of 4 (1 = lowest share). Source: EPA SDWIS.

Checked September 2026.

Who to call in North Dakota, city by city

4 North Dakota cities on this site and the water utility for each. What to do while you wait is in our water service outage guide.

Frequently asked questions

Is there a water service outage in North Dakota right now?

Not on this site: no reports from North Dakota in the last 24 hours.

How many public water systems are in North Dakota?

EPA records list 305 active community water systems in North Dakota, serving about 706,282 people. 89% serve 3,300 people or fewer.

How common are drinking water violations in North Dakota?

Since 2015, 30 of 305 community water systems in North Dakota (10%) have had at least one health-based violation, 66 in total.

What is the largest water system in North Dakota?

Fargo City Of, which EPA records list as serving about 120,762 people.

Report counts are user-submitted; other figures name their official source. How our data works

Cities in North Dakota with Water Service Outages Information

Bismarck

no reports in the last 24 hours · pop. 73,622
City of Bismarck Public Works Utilities

View Water Service Outages

Fargo

no reports in the last 24 hours · pop. 124,662
City of Fargo Water Utility

View Water Service Outages

Grand Forks

no reports in the last 24 hours · pop. 56,784
Grand Forks Water Utility

View Water Service Outages

Minot

no reports in the last 24 hours · pop. 47,911
City of Minot Water

View Water Service Outages