PlainWater

Community Water System · PWS NC0351020

Clayton, Town Of

Clayton, North Carolina 27528 - drinking water served from surface water sources to 29,689 people, tracked in EPA SDWIS and UCMR5.

29,689
People served
121
EPA violations
20
Health-based
5 PFAS
UCMR5 result

The verdict

EPA records 121 drinking-water violations at Clayton, Town Of, 17% of them health-based - above the North Carolina per-system average, and UCMR5 testing detected 5 PFAS compounds.

121
Total EPA violations on record
17%
Health-based (MCL / treatment failure)
29,689
People served by this system
5
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Clayton, Town Of

Clayton, Town Of is a local-owned community water system that delivers drinking water to 29,689 residents in Clayton, North Carolina (Johnston County) through 9,479 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 121 total violations for this system , of which 20 (17%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 70 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 19 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 5 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 8.2 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across North Carolina, EPA tracks 5,020 public water systems serving 9,877,724 people, with 524,053 cumulative violations and 38,492 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 104.4 violations. Statewide, 174 of 287 UCMR5-tested systems have reported PFAS detections (60.6%).

Clayton, Town Of's 121 violations sit above the North Carolina average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

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 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

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Clayton, Town Of.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NC0351020 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

North Carolina Drinking Water Authority

North Carolina DEQ, Public Water Supply Section is the primacy agency that licenses and inspects Clayton, Town Of under EPA-delegated authority.

Open NC regulator portal

Source: North Carolina DEQ, Public Water Supply Section

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2021 Lead and Copper Rule MR 19 SDWIS / NC0351020 / 5000
2018 Consumer Confidence Rule Other 13 SDWIS / NC0351020 / 7000
2007 Coliform (TCR) MCL 15 SDWIS / NC0351020 / 3100
2007 Public Notice Other 2 SDWIS / NC0351020 / 7500
2005 Lead and Copper Rule TT 5 SDWIS / NC0351020 / 5000
2000 Coliform (TCR) MR 6 SDWIS / NC0351020 / 3100
1995 Gross Alpha, Excl. Radon and U MR 5 SDWIS / NC0351020 / 4000
1994 Nitrate MR 2 SDWIS / NC0351020 / 1040
1992 Selenium MR 3 SDWIS / NC0351020 / 1045
1992 Mercury MR 3 SDWIS / NC0351020 / 1035
1992 Fluoride MR 3 SDWIS / NC0351020 / 1025
1992 Chromium MR 3 SDWIS / NC0351020 / 1020
1992 Thallium, Total MR 3 SDWIS / NC0351020 / 1085
1992 Antimony, Total MR 3 SDWIS / NC0351020 / 1074
1992 Arsenic MR 3 SDWIS / NC0351020 / 1005

How Clayton, Town Of Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Clayton, Town Of North Carolina avg Federal benchmark
Total violations 121 104.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 20 7.7 Indicates a contaminant exceeded a federal MCL
PFAS detection 5 compounds 60.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 29,689 1,968 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,020 regulated public water systems in North Carolina.

Federal MCL reference, Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Clayton, Town Of water safe to drink?
Clayton, Town Of (PWS ID: NC0351020) has 121 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 5 PFAS compounds found. This system serves 29,689 people using Surface Water sources.
How many people does Clayton, Town Of serve?
Clayton, Town Of serves 29,689 people in Clayton, North Carolina. It is a Local-owned system using Surface Water water sources with 9,479 service connections.
What type of violations does Clayton, Town Of have?
Clayton, Town Of has 121 total violations: 20 health-based violations (MCL exceedances or treatment failures), 70 monitoring/reporting violations, and 5 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Clayton, Town Of water?
Yes. UCMR5 testing detected 5 PFAS compounds in Clayton, Town Of's water supply: PFPeA, PFOA, PFHxA, PFOS, PFBS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Clayton, Town Of use?
Clayton, Town Of uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
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.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.