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North Dakota Water Quality
128
Utilities in database
0.7M
Residents served
48%
On private wells
2
Key contaminants tracked
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.
Utilities in North Dakota
76–100 of 128Dakota Rural Water District South
ND2001121 · 1,135 served
City of Cando
ND4800152 · 1,115 served
City of Linton
ND1500571 · 1,097 served
City of Velva
ND2500964 · 1,084 served
All Seasons Wd-system V
ND3501476 · 1,075 served
Dakota Rural Water District North
ND2001061 · 1,070 served
City of Burlington
ND5100138 · 1,060 served
City of Belfield
ND4500065 · 1,013 served
R & T Water System
ND5301152 · 1,003 served
City of Walhalla
ND3400980 · 996 served
City of Cooperstown
ND2000203 · 984 served
City of Beach
ND1700059 · 981 served
City of Kenmare
ND5100515 · 961 served
City of Wishek
ND2601037 · 952 served
City of Ray
ND5300809 · 950 served
City of New Salem
ND3000736 · 946 served
City of Northwood
ND1800753 · 945 served
City of Killdeer
ND1300520 · 939 served
City of Hankinson
ND3900443 · 919 served
All Seasons Wd-system I
ND0501057 · 890 served
City of Lamoure
ND2300537 · 889 served
City of Enderlin
ND3700314 · 886 served
Trenton Water Users Assoc
ND5300948 · 840 served
City of Drayton
ND3400269 · 824 served
City of Glen Ullin
ND3000400 · 807 served
Key Contaminant Concerns in North Dakota
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.
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.
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Data source: Utility data from EPA SDWIS. 128 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-24