BOSTON WATER AND SEWER COMMISSION (MWRA)
PWSID: MA3035000 · BOSTON, MA · Serving 675,647 people
Type: CWSOwner: LSource: SW
Compliant
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
Upgrade to Pro to see PFOA/PFOS ppt values and MCL comparison charts.
Upgrade to ProDetection summary
N/A ppt
Highest single detection
2024-07-10
Latest sample date
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 116 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| PFOS | ND | 4 | Below MRL | 2024-01-10 |
| PFOA | ND | 4 | Below MRL | 2024-01-10 |
| PFDoA | ND | — | Below MRL | 2024-01-10 |
| PFHxA | ND | — | Below MRL | 2024-01-10 |
| PFUnA | ND | — | Below MRL | 2024-01-10 |