NE SAMMAMISH SEWER & WATER DISTRICT
PWSID: WA5375265 · Sammamish, WA · Serving 8,516 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
2025-09-22
Latest sample date
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 116 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| PFPeA | ND | — | Below MRL | 2025-03-17 |
| 9Cl-PF3ONS | ND | — | Below MRL | 2025-03-17 |
| ADONA | ND | — | Below MRL | 2025-03-17 |
| NEtFOSAA | ND | — | Below MRL | 2025-03-17 |
| HFPO-DA | ND | 10 | Below MRL | 2025-03-17 |