DOW USA, LA DIVISION
PWSID: LA2047003 · PLAQUEMINE, LA · Serving 3,960 people
Type: NTNCWSOwner: PSource: 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
10.3 ppt
Highest single detection
2025-07-23
Latest sample date
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 116 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| PFBS | ND | — | Below MRL | 2025-01-08 |
| 11Cl-PF3OUdS | ND | — | Below MRL | 2025-01-08 |
| PFUnA | ND | — | Below MRL | 2025-01-08 |
| PFDoA | ND | — | Below MRL | 2025-01-08 |
| PFOA | ND | 4 | Below MRL | 2025-01-08 |