Stillwater
PWSID MN1820024 · Stillwater, Minnesota · serves 19,462 people · groundwater source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 118 ppt | — | 6/2/2025 |
| PFBA | 116 ppt | — | 6/2/2025 |
| PFBA | 113 ppt | — | 12/10/2024 |
| PFBA | 113 ppt | — | 12/10/2024 |
| PFBA | 108 ppt | — | 6/2/2025 |
| PFBA | 106 ppt | — | 12/10/2024 |
| PFBA | 102 ppt | — | 6/2/2025 |
| PFBA | 101 ppt | — | 12/10/2024 |
| PFBA | 101 ppt | — | 6/2/2025 |
| PFBA | 96.9 ppt | — | 12/10/2024 |
| PFBA | 93.1 ppt | — | 12/10/2024 |
| PFBA | 78.2 ppt | — | 6/2/2025 |
| PFBA | 74.6 ppt | — | 12/10/2024 |
| PFBA | 72.3 ppt | — | 6/2/2025 |
| PFBA | 66.6 ppt | — | 12/10/2024 |
| PFOS | 8.1 ppt | 4 ppt | 6/2/2025 |
| PFHxS | 7.2 ppt | 10 ppt | 6/2/2025 |
| PFOS | 7 ppt | 4 ppt | 12/10/2024 |
| PFHxS | 6.4 ppt | 10 ppt | 12/10/2024 |
| PFHxS | 5.8 ppt | 10 ppt | 12/10/2024 |
| PFOA | 5.2 ppt | 4 ppt | 12/10/2024 |
| PFPeA | 4.5 ppt | — | 12/10/2024 |
| PFOS | 4.3 ppt | 4 ppt | 12/10/2024 |
| PFOA | 4 ppt | 4 ppt | 12/10/2024 |
| PFOA | 4 ppt | 4 ppt | 12/10/2024 |
| PFPeA | 3.8 ppt | — | 6/2/2025 |
| PFPeA | 3.6 ppt | — | 12/10/2024 |
| PFPeA | 3.6 ppt | — | 12/10/2024 |
| PFPeA | 3.5 ppt | — | 6/2/2025 |
| PFPeA | 3.3 ppt | — | 6/2/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-07-02 | LEAD AND COPPER RULE REVISIONS | RPT | No | Resolved |
| 2022-07-01 | Consumer Confidence Rule | Other | No | Resolved |