GREAT FALLS CITY OF
PWSID: MT0000525 · GREAT FALLS, MT · Serving 60,000 people
Type: CWSOwner: LSource: SW
Settlement eligible
Settlement details
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Upgrade to ProCompliant
All PFAS compounds below EPA Maximum Contaminant Levels.
Key contaminants vs MCL
EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31
Exact contamination levels
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Upgrade to ProDetection summary
80.8 ppt
Highest single detection
2023-09-18
Latest sample date
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 116 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| 11Cl-PF3OUdS | ND | — | Below MRL | 2023-03-06 |
| PFUnA | ND | — | Below MRL | 2023-03-06 |
| 8:2 FTS | ND | — | Below MRL | 2023-03-06 |
| ADONA | ND | — | Below MRL | 2023-03-06 |
| HFPO-DA | ND | 10 | Below MRL | 2023-03-06 |