All 38 systems met the sampling requirement for a yearly average. Of those systems, 0 had at least one yearly average above an EPA comparison level and 38 did not.
EPA-based study benchmark: a fixed, unrounded research cutoff used to reproduce EPA’s final UCMR 5 technical-assistance classification based on the April 2024 federal levels. It is not a current federal or state standard. The label does not determine compliance, household exposure, or health risk.
State rules: The labels on this page use fixed research cutoffs based on the April 2024 federal levels. North Dakota may use different current standards or guidance. These UCMR 5 results do not determine current federal or state compliance. Find the official North Dakota drinking-water program →
Find your water system
A ZIP code finds possible public water systems for an area; it cannot identify the supplier for a specific home. Confirm the provider using a water bill or utility record.
System counts in North Dakota
Each count shows how many included water systems had a yearly average above the named EPA comparison level.
| EPA rounding cutoff | Systems above comparison level | Water systems included | Percent |
|---|---|---|---|
| PFOA: 4 ppt level; unrounded average ≥4.05 ppt after applying EPA rounding | 0 | 38 | 0.0% |
| PFOS: 4 ppt level; unrounded average ≥4.05 ppt after applying EPA rounding | 0 | 38 | 0.0% |
| PFHxS: 10 ppt level; unrounded average ≥15 ppt after applying EPA rounding | 0 | 38 | 0.0% |
| PFNA: 10 ppt level; unrounded average ≥15 ppt after applying EPA rounding | 0 | 38 | 0.0% |
| HFPO-DA: 10 ppt level; unrounded average ≥15 ppt after applying EPA rounding | 0 | 38 | 0.0% |
| Hazard Index: 1 level; unrounded index ≥1.5 and at least two detected components | 0 | 38 | 0.0% |
Community water systems with complete monitoring
“Complete monitoring” means at least one sampling location had every required sample needed to calculate a yearly average. It does not mean every location or home was tested. Each PWSID appears once, preventing double counting across ZIP associations.
| Public water system | PWSID | Population served | Primary source | Sampling locations | EPA comparison result |
|---|---|---|---|---|---|
| AGASSIZ WATER USERS DISTRICT | ND1801056 | 3,438 | Ground water | 1 | No available average above comparison levels |
| BARNES RURAL WATER DISTRICT | ND0201058 | 4,938 | Ground water | 1 | No available average above comparison levels |
| BEACH CITY OF | ND1700059 | 981 | Surface water purchased | 1 | No available average above comparison levels |
| BELCOURT-TURTLE MTN RURAL WATER SYSTEM | 083890023 | 13,500 | Ground water | 1 | No available average above comparison levels |
| BEULAH CITY OF | ND2900074 | 3,058 | Ground water | 1 | No available average above comparison levels |
| CASS RURAL WATER DISTRICT FARGO | ND0901483 | 4,242 | Surface water purchased | 1 | No available average above comparison levels |
| CASS RURAL WATER DISTRICT-PHASE I | ND0901060 | 3,658 | Ground water | 1 | No available average above comparison levels |
| CASS RURAL WATER DISTRICT-PHASE II | ND0901124 | 1,700 | Ground water | 1 | No available average above comparison levels |
| CENTRAL PLAINS WATER DISTRICT | ND5201309 | 3,504 | Ground water | 1 | No available average above comparison levels |
| DEVILS LAKE CITY OF | ND3600231 | 7,141 | Ground water | 1 | No available average above comparison levels |
| DICKINSON CITY OF | ND4500242 | 25,679 | Surface water purchased | 1 | No available average above comparison levels |
| EAST CENTRAL REGIONAL WD-GF | ND1801062 | 5,995 | Ground water | 1 | No available average above comparison levels |
| FARGO CITY OF | ND0900336 | 120,762 | Surface water | 1 | No available average above comparison levels |
| GRAFTON CITY OF | ND5000408 | 4,284 | Surface water | 1 | No available average above comparison levels |
| GRAND FORKS REGIONAL WTP | ND1800410 | 57,339 | Surface water | 1 | No available average above comparison levels |
| GREATER RAMSEY WATER DISTRICT | ND3601424 | 5,280 | Ground water | 1 | No available average above comparison levels |
| GRENORA CITY OF | ND5300425 | 244 | Ground water | 1 | No available average above comparison levels |
| JAMESTOWN CITY OF | ND4700498 | 15,427 | Ground water | 1 | No available average above comparison levels |
| LARIMORE CITY OF | ND1800550 | 1,346 | Ground water purchased | 1 | No available average above comparison levels |
| LINCOLN CITY OF | ND0800570 | 4,257 | Purchased ground water under influence of surface water source | 1 | No available average above comparison levels |
| MANDAN CITY OF | ND3000596 | 21,769 | Surface water | 1 | No available average above comparison levels |
| MINOT CITY OF | ND5100660 | 48,743 | Ground water | 1 | No available average above comparison levels |
| MISSOURI WEST WATER SYSTEM | ND3001431 | 4,303 | Surface water purchased | 2 | No available average above comparison levels |
| NORTH PRAIRIE RWD-SYSTEM 1&2 | ND5101125 | 7,748 | Ground water purchased | 1 | No available average above comparison levels |
| NORTHEAST RWD- NORTH VALLEY BRANCH | ND3401128 | 3,422 | Ground water | 1 | No available average above comparison levels |
| NORTHWEST RURAL WATER DISTRICT, ND | ND5301079 | 5,102 | Surface water purchased | 1 | No available average above comparison levels |
| OMND WATER TREATMENT PLANT | ND2901491 | 4,168 | Surface water | 1 | No available average above comparison levels |
| SOUTH CENTRAL REGIONAL WATER DISTRICT | ND0801154 | 3,700 | Purchased ground water under influence of surface water source | 1 | No available average above comparison levels |
| SOUTH CENTRAL RWD NORTH BURLEIGH | ND0801502 | 10,400 | Groundwater under influence of surface water | 1 | No available average above comparison levels |
| SOUTH CENTRAL RWD-EMMONS | ND1501653 | 3,650 | Surface water | 1 | No available average above comparison levels |
| SOUTHEAST WUD (EAST) | ND3901068 | 4,225 | Ground water | 1 | No available average above comparison levels |
| SOUTHWEST WATER AUTHORITY | ND4501434 | 8,537 | Surface water | 1 | No available average above comparison levels |
| STUTSMAN RURAL WATER DISTRICT | ND4701303 | 5,550 | Ground water | 1 | No available average above comparison levels |
| VALLEY CITY CITY OF | ND0200958 | 6,585 | Surface water | 1 | No available average above comparison levels |
| WAHPETON CITY OF | ND3900973 | 7,766 | Ground water | 1 | No available average above comparison levels |
| WATFORD CITY CITY OF | ND2700990 | 6,390 | Surface water purchased | 1 | No available average above comparison levels |
| WEST FARGO CITY OF | ND0900999 | 34,858 | Surface water purchased | 1 | No available average above comparison levels |
| WILLISTON CITY OF | ND5301012 | 26,426 | Surface water | 1 | No available average above comparison levels |
What is included
Each active community water system with enough required samples for a yearly average is counted once, even if it is linked with several ZIP codes. Private wells are excluded, and UCMR 5 did not comprehensively monitor every small system.