CLAYTON, TOWN OF
PWS ID: NC0351020 · CLAYTON, North Carolina 27528
PFAS Detected
5 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
29,689
Total Violations
121
Health-Based Violations
20
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 9,479
- County
- Johnston
- School/Daycare
- No
- MCL Violations
- 15
- Monitoring Violations
- 70
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 19 | 2021 |
| Coliform (TCR) | MCL | 15 | 2007 |
| Consumer Confidence Rule | Other | 13 | 2018 |
| Coliform (TCR) | MR | 6 | 2000 |
| Gross Alpha, Excl. Radon and U | MR | 5 | 1995 |
| Lead and Copper Rule | TT | 5 | 2005 |
| Selenium | MR | 3 | 1992 |
| Mercury | MR | 3 | 1992 |
| Fluoride | MR | 3 | 1992 |
| Chromium | MR | 3 | 1992 |
| Thallium, Total | MR | 3 | 1992 |
| Antimony, Total | MR | 3 | 1992 |
| Arsenic | MR | 3 | 1992 |
| Barium | MR | 3 | 1992 |
| CYANIDE | MR | 3 | 1992 |
| Cadmium | MR | 3 | 1992 |
| Beryllium, Total | MR | 3 | 1992 |
| Nickel | MR | 3 | 1992 |
| Public Notice | Other | 2 | 2007 |
| Nitrate | MR | 2 | 1994 |
| Combined Radium (-226 and -228) | MR | 1 | 1980 |
| Gross Beta Particle Activity | MR | 1 | 1980 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 10 of 95 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFTA | 7/29/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 7/29/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 7/29/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 7/29/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 7/15/2024 | <9 µg/L | 9 µg/L | Not Detected |
| PFDoA | 6/24/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| ADONA | 6/24/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpS | 6/24/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 6/24/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 6/24/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 6/24/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 6/24/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 6/24/2024 | 0.0064 µg/L | 0.003 µg/L | Detected |
| PFMPA | 6/24/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 6/24/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 6/24/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 6/24/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFOA | 6/24/2024 | 0.0082 µg/L | 0.004 µg/L | Detected |
| HFPO-DA | 6/24/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 9Cl-PF3ONS | 6/24/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFUnA | 6/24/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHxA | 6/24/2024 | 0.0059 µg/L | 0.003 µg/L | Detected |
| PFDA | 6/24/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOS | 6/24/2024 | 0.0081 µg/L | 0.004 µg/L | Detected |
| PFNA | 6/24/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 6/24/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 6/24/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 6/24/2024 | 0.0040 µg/L | 0.003 µg/L | Detected |
| PFBA | 6/24/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 11Cl-PF3OUdS | 6/24/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| lithium | 4/16/2024 | <9 µg/L | 9 µg/L | Not Detected |
| PFTA | 4/16/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| NMeFOSAA | 4/16/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| NEtFOSAA | 4/16/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 4/16/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFHxS | 10/15/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTrDA | 10/15/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 10/15/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| 9Cl-PF3ONS | 10/15/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 10/15/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 10/15/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHxA | 10/15/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 10/15/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 10/15/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 10/15/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NMeFOSAA | 10/15/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFNA | 10/15/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| ADONA | 10/15/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 10/15/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 10/15/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
PFAS data from EPA UCMR5 monitoring program (2023-2025).
This data is provided for informational purposes only.