MO AMERICAN ST LOUIS ST CHARLES COUNTIES
PWSID: MO6010716 · CHESTERFIELD, MO · Serving 1,111,000 people
Type: CWSOwner: PSource: SW
Settlement eligible
Settlement details
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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
86.8 ppt
Highest single detection
2024-09-11
Latest sample date
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 696 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| PFTA | ND | — | Below MRL | 2024-12-13 |
| PFMPA | ND | — | Below MRL | 2024-03-08 |
| PFHpA | ND | — | Below MRL | 2024-03-08 |
| NEtFOSAA | ND | — | Below MRL | 2024-03-08 |
| PFTrDA | ND | — | Below MRL | 2024-03-08 |