ST LOUIS CITY PWS
PWSID: MO6010715 · ST LOUIS, MO · Serving 304,709 people
Type: CWSOwner: LSource: 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
45.3 ppt
Highest single detection
2024-09-18
Latest sample date
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 232 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| PFOA | ND | 4 | Below MRL | 2024-03-07 |
| ADONA | ND | — | Below MRL | 2024-03-07 |
| 9Cl-PF3ONS | ND | — | Below MRL | 2024-03-07 |
| 11Cl-PF3OUdS | ND | — | Below MRL | 2024-03-07 |
| PFUnA | ND | — | Below MRL | 2024-03-07 |
Violation history(2 violations, 2 open)
Monitoring & Reporting - PFHxS(PFHxS)
2022-10-01 · Open · Tier 3
Monitoring & Reporting - PFHxS(PFHxS)
2022-07-01 · Open · Tier 3
Violation details
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