State Hub
North Dakota Water Quality
128
Utilities in database
0.7M
Residents served
0
With open violations
37
PFAS monitored
Quick Answer
North Dakota public drinking water is served by 128 EPA-tracked water systems, providing service to approximately 0.7 million residents through public utilities. No open health-based violations are currently recorded across tracked systems in the EPA federal database. 37 systems have official PFAS monitoring records from the EPA UCMR 5 program (2023–2025). About 48% of ND residents use private wells, which fall outside federal utility compliance monitoring.
No open health-based violations are currently recorded in the EPA SDWIS database for North Dakota's tracked water systems. Always verify with your utility's Consumer Confidence Report for annual test results.
Drinking Water in North Dakota
North Dakota has 128 community water systems serving approximately 0.7 million residents. Primary water sources include groundwater. The most commonly reported contaminants include disinfection byproducts, lead. 48% of North Dakota residents rely on private wells. NDDoH holds primary enforcement authority under the Safe Drinking Water Act.
Safest Large Utilities
North Dakota systems with no open health violations serving 10,000+ residents.
Utilities in North Dakota
26–50 of 128Southeast Wud (east)
ND3901068 · 4,225 served
Omnd Water Treatment Plant
ND2901491 · 4,168 served
Mckenzie County Wrd
ND2701477 · 3,895 served
South Central Regional Water District
ND0801154 · 3,700 served
Cass Rural Water District-phase I
ND0901060 · 3,658 served
South Central Rwd-emmons
ND1501653 · 3,650 served
Central Plains Water District
ND5201309 · 3,504 served
Agassiz Water Users District
ND1801056 · 3,438 served
Northeast Rwd- North Valley Branch
ND3401128 · 3,422 served
City of Beulah
ND2900074 · 3,058 served
Walsh Rural Water District
ND5001075 · 3,000 served
City of Rugby
ND3500842 · 2,876 served
East Central Regional Wd-traill
ND4901071 · 2,800 served
North Prairie Rwd-system Iii
ND5101065 · 2,742 served
City of Casselton
ND0900166 · 2,513 served
Tri-county Water District
ND3201072 · 2,501 served
Northeast Rwd-langdon Branch
ND1001380 · 2,450 served
City of Hazen
ND2900470 · 2,411 served
City of Bottineau
ND0500099 · 2,211 served
City of Tioga
ND5300936 · 2,202 served
City of Lisbon
ND3700574 · 2,154 served
City of Carrington
ND1600159 · 2,065 served
City of Langdon
ND1000543 · 1,878 served
City of Mayville
ND4900622 · 1,858 served
City of Oakes
ND1100758 · 1,856 served
Key Contaminant Concerns in North Dakota
These contaminants appear most frequently in North Dakota utility records or pose elevated risk in this region based on EPA data.
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing. Critically, a utility's water quality report can show zero detected lead at the treatment plant while your specific tap still delivers elevated lead — because the contamination happens inside the distribution system and your home's plumbing, not at the source.
EPA limit: 15 ppb (action level)
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
EPA limit: 80 µg/L (TTHMs) / 60 µg/L (HAA5)
City Water Reports in North Dakota
Tap water quality pages for North Dakota cities — violations, PFAS records, utility profiles, and official source links.
Independent Water Testing
Find a certified lab in North Dakota
Utility compliance records show what water systems report to the EPA. An independent test from a certified laboratory confirms what's actually in your tap water. North Dakota labs can test for PFAS, lead, nitrates, bacteria, and dozens of other contaminants.
Explore Water Quality in North Dakota
Southeast Wud (east)
Violation history, PFAS records, and official source links
Omnd Water Treatment Plant
Violation history, PFAS records, and official source links
Mckenzie County Wrd
Violation history, PFAS records, and official source links
PFAS monitoring records — North Dakota
37 water systems in North Dakota with EPA UCMR 5 records
Lead in North Dakota drinking water
State-specific lead data, violation utilities, and testing guidance
PFAS in North Dakota drinking water
State-specific PFAS data, MCL context, and treatment options
Certified water testing labs in North Dakota
Labs certified for PFAS (EPA 533/537.1), lead, and bacteria testing
Water treatment options
Reverse osmosis, activated carbon, and filtration guides with cost ranges
Data sources and methodology
How WaterUtilityReport.com sources and validates official EPA data
Common Questions About North Dakota Drinking Water
Does North Dakota drinking water have PFAS?
37 North Dakota water systems have EPA UCMR 5 PFAS monitoring records (2023–2025)
Which North Dakota water utilities have open violations?
Browse North Dakota utility compliance records and violation history
How do I test my water in North Dakota?
State-certified labs for PFAS (EPA 533/537.1), lead, nitrate, and bacteria testing
What treatment removes PFAS from ND tap water?
Reverse osmosis removes PFAS, lead, arsenic, and nitrates — cost, maintenance, and NSF certification explained
What do North Dakota PFAS records tell me about my water?
EPA limits, health context, and what UCMR 5 detection above MRL means for your water
How is North Dakota water quality data sourced here?
EPA SDWIS violations, UCMR 5 PFAS records, and CCR data — sources, accuracy notes, and limitations
North Dakota Water FAQs
Data sources: Utility compliance and violation data from EPA SDWIS (Safe Drinking Water Information System). PFAS monitoring records from EPA UCMR 5 (Unregulated Contaminant Monitoring Rule 5, 2023–2025). Contaminant data from EPA and ATSDR public references. This page summarizes public records — it is not a compliance determination. Methodology →
Last updated: 2026-04-24