RIDGEFIELD PUBLIC WORKS
PWSID: WA5372400 · Ridgefield, WA · Serving 20,967 people
Type: CWSOwner: LSource: GW
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
2025-05-21
Latest sample date
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 203 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| PFUnA | ND | — | Below MRL | 2025-05-21 |
| 9Cl-PF3ONS | ND | — | Below MRL | 2025-05-21 |
| NEtFOSAA | ND | — | Below MRL | 2025-05-21 |
| NMeFOSAA | ND | — | Below MRL | 2025-05-21 |
| PFBS | ND | — | Below MRL | 2025-05-21 |