Community Water System · PWS NC0351020
Clayton, Town Of
Operator location Clayton, North Carolina - UCMR5 detected 5 PFAS compounds (upper-third PFAS panel (> 4 compounds)) on this PWS; SDWIS lists 121 violations and 29,689 people served.
- 29,689
- People served (this PWS)
- 121
- EPA violations (this PWS)
- 20
- Health-based (this PWS)
- 5 PFAS
- UCMR5 (this PWS)
Clayton, Town Of standing, high SDWIS violation third
UCMR5 detected 5 PFAS compounds - upper-third PFAS panel (> 4 compounds). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 17% is middle-third health share (≤ 23%). UCMR5: upper-third PFAS panel (> 4 compounds). Population rank #1,886 of 29,740 among systems serving 500+.
The verdict
Clayton, Town Of sits in the upper third of the sitemap cohort by violation count (121), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (29,689; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 17% (middle-third health share (≤ 23%)). UCMR5 detected 5 PFAS compounds (upper-third PFAS panel (> 4 compounds)).
- #1,886 of 29,740
- Population · /systems
- #50 of 713
- Population · NC
- 121
- Total EPA violations on record
- 17%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
5 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
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 |
Violation Count vs. the National Corpus
Clayton, Town Of has 121 recorded EPA violations, 77% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 23% carry more. 17% of this system's own violations are health-based (20 of 121), and it ranks #1,886 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
121 Higher than most more violations than 77% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 10 of 91 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFTA | 7/29/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 7/29/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 7/29/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 7/29/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFDoA | 6/24/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| ADONA | 6/24/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpS | 6/24/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 6/24/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 6/24/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFEESA | 6/24/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 6/24/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 6/24/2024 | 6.40 ppt | 3.00 ppt | Detected |
| PFMPA | 6/24/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 6/24/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 6/24/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 6/24/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFOA | 6/24/2024 | 8.20 ppt | 4.00 ppt | Detected |
| HFPO-DA | 6/24/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 6/24/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFUnA | 6/24/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 6/24/2024 | 5.90 ppt | 3.00 ppt | Detected |
| PFDA | 6/24/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 6/24/2024 | 8.10 ppt | 4.00 ppt | Detected |
| PFNA | 6/24/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 6/24/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 6/24/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 6/24/2024 | 4.00 ppt | 3.00 ppt | Detected |
| PFBA | 6/24/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 6/24/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTA | 4/16/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| NMeFOSAA | 4/16/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 4/16/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 4/16/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFHxS | 10/15/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 10/15/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 10/15/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| 9Cl-PF3ONS | 10/15/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 10/15/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 10/15/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 10/15/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 10/15/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 10/15/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 10/15/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| NMeFOSAA | 10/15/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFNA | 10/15/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| ADONA | 10/15/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 10/15/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 10/15/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 10/15/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeS | 10/15/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
UCMR5 PFAS record for Clayton, Town Of
Open EPA SDWIS federal reports for PWS NC0351020 to cross-check UCMR5 detections and violation codes; state primacy agencies enforce the Safe Drinking Water Act locally.
Sources: EPA SDWIS · North Carolina DEQ, Public Water Supply Section
Nationwide peers
121 violations · 29,689 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Clayton, Town Of
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in North Carolina compares on the same EPA violation measures. North Carolina systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.