YNP-OLD FAITHFUL
PWSID: WY5680085 · YELLOWSTONE, WY · Serving 7,675 people
Type: CWSOwner: FSource: 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
120 ppt
Highest single detection
2023-08-23
Latest sample date
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 116 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| PFHpA | ND | — | Below MRL | 2023-02-27 |
| 9Cl-PF3ONS | ND | — | Below MRL | 2023-02-27 |
| PFBS | ND | — | Below MRL | 2023-02-27 |
| PFHpS | ND | — | Below MRL | 2023-02-27 |
| PFPeS | ND | — | Below MRL | 2023-02-27 |