Minnesota tap water
10 of 193 Minnesota water systems with full PFAS testing (5%) averaged above a 2024 federal PFAS level at one or more sampling points.
- 969 active community water systems in the EPA file; 179 serve 3,300+ people and have a full PFAS set.
- 67 systems had at least one health-based violation since 2021-10-26.
- 1 systems report a lead 90th percentile above 15 ppb (some results are old; check each system page).
Largest systems
| System | People served | PFAS above a 2024 level? | Health-based violations since 2021-10-26 |
|---|---|---|---|
| Minneapolis | 425,300 | No | 0 |
| Saint Paul Regional Water Services | 392,529 | No | 1 |
| Rochester | 123,624 | No | 0 |
| Bloomington | 91,300 | No | 0 |
| Brooklyn Park | 89,995 | Yes, at one or more sampling points | 0 |
| Duluth | 86,859 | No | 0 |
| Woodbury | 82,643 | Yes, at one or more sampling points | 0 |
| Maple Grove | 82,000 | No | 0 |
Counties
Hennepin County24 systems with full PFAS testingWashington County12 systems with full PFAS testingAnoka County12 systems with full PFAS testingRamsey County11 systems with full PFAS testing
All 24 utilities with a page in Minnesota
- Apple Valley 50,300
- Blaine 70,220
- Bloomington 91,300
- Brooklyn Park 89,995
- Burnsville 64,317
- Coon Rapids 63,599
- Cottage Grove 42,760
- Duluth 86,859
- Eagan 68,223
- Eden Prairie 63,726
- Edina 53,494
- Lakeville 67,300
- Mankato 42,803
- Maple Grove 82,000
- Minneapolis 425,300
- Minnetonka 54,474
- Moorhead 44,583
- Plymouth 76,546
- Rochester 123,624
- Saint Cloud 71,321
- Saint Louis Park 50,010
- Saint Paul Regional Water Services 392,529
- Shakopee 47,000
- Woodbury 82,643
Why not "the state's water quality"? You drink from one utility, not a state. Rollups count systems, not people, so one large utility counts the same as a small one. Use the system pages for your actual water.
Not medical or legal advice. UCMR 5 results are screening data, not compliance determinations.
Sources and freshness
Public-water-system facts, violations and lead/copper results: EPA ECHO SDWA download (SDWIS snapshot 2026-10-13). PFAS and lithium results: EPA UCMR 5 final data (sampling 2023–2025). Both are U.S. government works, downloaded 2026-10-26. Numbers are computed by the published method; the same fields are in the open data files.