JOHNSON CITY WATER DEPT
PWSID: TN0000331 · JOHNSON CITY, TN · Serving 105,057 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
2024-09-23
Latest sample date
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 231 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| PFEESA | ND | — | Below MRL | 2023-12-12 |
| HFPO-DA | ND | 10 | Below MRL | 2023-12-12 |
| PFBA | ND | — | Below MRL | 2023-12-12 |
| PFOS | ND | 4 | Below MRL | 2023-12-12 |
| 6:2 FTS | ND | — | Below MRL | 2023-12-12 |
Violation history(1 violation, 1 open)
Monitoring & Reporting - PFHxS(PFHxS)
2021-04-01 · Open · Tier 3
Violation details
Upgrade to Pro to view full violation history, enforcement actions, and resolution status.
Upgrade to Pro