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Community Water System · PWS NC0351035

Four Oaks, Town Of

Four Oaks, North Carolina 27524 - drinking water served from surface water sources to 2,854 people, tracked in EPA SDWIS and UCMR5.

2,854
People served
159
EPA violations
54
Health-based
Untested
UCMR5 result

The verdict

EPA records 159 drinking-water violations at Four Oaks, Town Of, 34% of them health-based - above the North Carolina per-system average.

159
Total EPA violations on record
34%
Health-based (MCL / treatment failure)
2,854
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Four Oaks, Town Of

Four Oaks, Town Of is a local-owned community water system that delivers drinking water to 2,854 residents in Four Oaks, North Carolina (Johnston County) through 1,427 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 159 total violations for this system , of which 54 (34%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 97 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is TTHM, recorded in 50 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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%).

Four Oaks, Town Of's 159 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.

Population Served
2,854
Total Violations
159
Health-Based Violations
54
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,427
County
Johnston
School/Daycare
No
MCL Violations
54
Monitoring Violations
97
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 50 2023
Total Haloacetic Acids (HAA5) MR 26 2018
TTHM MR 26 2018
Lead and Copper Rule MR 12 2025
Coliform (TCR) MR 11 2013
Chloramine MR 10 2017
Gross Alpha, Excl. Radon and U MR 7 1985
Revised Total Coliform Rule MON 5 2017
Coliform (TCR) MCL 4 2003
Consumer Confidence Rule Other 2 2019
Public Notice Other 2 2021

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 Four Oaks, 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 NC0351035 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 Four Oaks, 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
2025 Lead and Copper Rule MR 12 SDWIS / NC0351035 / 5000
2023 TTHM MCL 50 SDWIS / NC0351035 / 2950
2021 Public Notice Other 2 SDWIS / NC0351035 / 7500
2019 Consumer Confidence Rule Other 2 SDWIS / NC0351035 / 7000
2018 Total Haloacetic Acids (HAA5) MR 26 SDWIS / NC0351035 / 2456
2018 TTHM MR 26 SDWIS / NC0351035 / 2950
2017 Chloramine MR 10 SDWIS / NC0351035 / 1006
2017 Revised Total Coliform Rule MON 5 SDWIS / NC0351035 / 8000
2013 Coliform (TCR) MR 11 SDWIS / NC0351035 / 3100
2003 Coliform (TCR) MCL 4 SDWIS / NC0351035 / 3100
1985 Gross Alpha, Excl. Radon and U MR 7 SDWIS / NC0351035 / 4000

How Four Oaks, Town Of Compares

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

Metric Four Oaks, Town Of North Carolina avg Federal benchmark
Total violations 159 104.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 54 7.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,854 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 Four Oaks, Town Of water safe to drink? ▼
Four Oaks, Town Of (PWS ID: NC0351035) has 159 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,854 people using Surface Water sources.
How many people does Four Oaks, Town Of serve? ▼
Four Oaks, Town Of serves 2,854 people in Four Oaks, North Carolina. It is a Local-owned system using Surface Water water sources with 1,427 service connections.
What type of violations does Four Oaks, Town Of have? ▼
Four Oaks, Town Of has 159 total violations: 54 health-based violations (MCL exceedances or treatment failures), 97 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Four Oaks, Town Of water? ▼
No PFAS testing data is available for Four Oaks, Town Of under the EPA's UCMR5 monitoring program.
What water source does Four Oaks, Town Of use? ▼
Four Oaks, 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. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

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.