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CheckYourWater

PFAS Testing Results

North Dakota

PFAS testing results for 38 water systems serving 559,032 residents.

No water systems in North Dakota exceeded federal PFAS limits in EPA testing.

Systems tested

38

18.4% had PFAS detections

Limits exceeded

0

0.0% of systems

Population affected

0

served by systems over federal limits

Most common compound

11Cl-PF3OUdS

detected in 7 systems

Grade distribution

Every water system gets a letter grade based on how its worst detected PFAS compound compares to the federal Maximum Contaminant Level. Lower grades mean higher contamination.

A — 31 systems (81.6%)
B — 7 systems (18.4%)
C — 0 systems (0.0%)
D — 0 systems (0.0%)
F — 0 systems (0.0%)

How grades are calculated →

What North Dakota is doing about PFAS

As of April 2026, North Dakota has not adopted state-level PFAS drinking water standards beyond the federal EPA limits finalized in April 2024. The North Dakota Department of Environmental Quality has tracked contamination near Grand Forks Air Force Base and Minot Air Force Base.

Public water systems in North Dakota are subject to the federal compliance timeline requiring initial monitoring by 2027 and treatment installation by 2029.

Based on North Dakota Department of Environmental Quality publications.

All 38 tested water systems in North Dakota

Sorted from lowest grade to highest. Click any system name for the full report. Filter by city or name with the search box below.

Showing 38 of 38 systems

GradeSystem nameCityWorst compoundvs. EPA limitPopulation
SOUTH CENTRAL REGIONAL WATER DISTRICTBISMARCKPFBABelow detection3.7K
CASS RURAL WATER DISTRICT FARGOKINDREDPFBABelow detection4.2K
GRAND FORKS REGIONAL WTPGRAND FORKSPFBABelow detection57K
GRAFTON CITY OFGRAFTONPFBABelow detection4.3K
NORTH PRAIRIE RWD-SYSTEM 1&2MINOTPFPeABelow detection7.7K
CENTRAL PLAINS WATER DISTRICTFESSENDENPFBABelow detection3.5K
NORTHWEST RURAL WATER DISTRICT, NDWILLISTONPFBABelow detection5.1K
VALLEY CITY CITY OFVALLEY CITY-Below detection6.6K
BARNES RURAL WATER DISTRICTVALLEY CITY-Below detection4.9K
BISMARCK CITY OFBISMARCK-Below detection72K
LINCOLN CITY OFLINCOLN-Below detection4.3K
SOUTH CENTRAL RWD NORTH BURLEIGHBISMARCK-Below detection10K
FARGO CITY OFFARGO-Below detection121K
WEST FARGO CITY OFWEST FARGO-Below detection35K
CASS RURAL WATER DISTRICT-PHASE IKINDRED-Below detection3.7K
CASS RURAL WATER DISTRICT-PHASE IIKINDRED-Below detection1.7K
SOUTH CENTRAL RWD-EMMONSBISMARCK-Below detection3.6K
BEACH CITY OFBEACH-Below detection981
LARIMORE CITY OFLARIMORE-Below detection1.3K
AGASSIZ WATER USERS DISTRICTGILBY-Below detection3.4K
EAST CENTRAL REGIONAL WD-GFTHOMPSON-Below detection6.0K
WATFORD CITY CITY OFWATFORD CITY-Below detection6.4K
BEULAH CITY OFBEULAH-Below detection3.1K
OMND WATER TREATMENT PLANTDICKINSON-Below detection4.2K
MANDAN CITY OFMANDAN-Below detection22K
MISSOURI WEST WATER SYSTEMMANDAN-Below detection4.3K
NORTHEAST RWD- NORTH VALLEY BRANCHCAVALIER-Below detection3.4K
DEVILS LAKE CITY OFDEVILS LAKE-Below detection7.1K
GREATER RAMSEY WATER DISTRICTDEVILS LAKE-Below detection5.3K
WAHPETON CITY OFWAHPETON-Below detection7.8K
SOUTHEAST WUD (EAST)MANTADOR-Below detection4.2K
DICKINSON CITY OFDICKINSON-Below detection26K
SOUTHWEST WATER AUTHORITYDICKINSON-Below detection8.5K
JAMESTOWN CITY OFJAMESTOWN-Below detection15K
STUTSMAN RURAL WATER DISTRICTJAMESTOWN-Below detection5.5K
MINOT CITY OFMINOT-Below detection49K
GRENORA CITY OFGRENORA-Below detection244
WILLISTON CITY OFWILLISTON-Below detection26K

Check your water system

Enter your zip code to see the PFAS results for the water system that serves your home.

Where this data comes from

  • EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5)
  • Testing period: 2023 to 2026
  • Federal limits: EPA Maximum Contaminant Levels finalized April 2024
  • Read the full methodology