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Community Water System · PWS AR0000509

Mansfield Waterworks

Mansfield, Arkansas 72944 - drinking water served from surface water sources to 2,367 people, tracked in EPA SDWIS and UCMR5.

2,367
People served
81
EPA violations
39
Health-based
Untested
UCMR5 result

The verdict

EPA records 81 drinking-water violations at Mansfield Waterworks, 48% of them health-based - above the Arkansas per-system average.

81
Total EPA violations on record
48%
Health-based (MCL / treatment failure)
2,367
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mansfield Waterworks

Mansfield Waterworks is a local-owned community water system that delivers drinking water to 2,367 residents in Mansfield, Arkansas (Sebastian County) through 950 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 81 total violations for this system , of which 39 (48%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 22 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Stage 1 Disinfectants and Disinfection Byproducts Rule, recorded in 24 violations (TT, 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 Arkansas, EPA tracks 1,016 public water systems serving 3,049,400 people, with 53,437 cumulative violations and 21,598 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 52.6 violations. Statewide, 57 of 172 UCMR5-tested systems have reported PFAS detections (33.1%).

Mansfield Waterworks's 81 violations sit above the Arkansas 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
2,367
Total Violations
81
Health-Based Violations
39
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
950
County
Sebastian
School/Daycare
No
MCL Violations
15
Monitoring Violations
22
Treatment Tech Violations
24

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 24 2017
TTHM MCL 15 2023
Coliform (TCR) MR 12 2012
Revised Total Coliform Rule MON 6 2020
Surface Water Treatment Rule MR 4 1996
Surface Water Treatment Rule Other 3 1996
Revised Total Coliform Rule Other 2 2017
Coliform (TCR) Other 1 1996

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 Mansfield Waterworks.

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 AR0000509 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Arkansas Drinking Water Authority

Arkansas's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find AR regulator via EPA SDWIS

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
2023 TTHM MCL 15 SDWIS / AR0000509 / 2950
2020 Revised Total Coliform Rule MON 6 SDWIS / AR0000509 / 8000
2017 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 24 SDWIS / AR0000509 / 0400
2017 Revised Total Coliform Rule Other 2 SDWIS / AR0000509 / 8000
2012 Coliform (TCR) MR 12 SDWIS / AR0000509 / 3100
1996 Surface Water Treatment Rule MR 4 SDWIS / AR0000509 / 0200
1996 Surface Water Treatment Rule Other 3 SDWIS / AR0000509 / 0200
1996 Coliform (TCR) Other 1 SDWIS / AR0000509 / 3100

How Mansfield Waterworks Compares

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

Metric Mansfield Waterworks Arkansas avg Federal benchmark
Total violations 81 52.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 39 21.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 33.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,367 3,001 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,016 regulated public water systems in Arkansas.

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 Mansfield Waterworks water safe to drink? ▼
Mansfield Waterworks (PWS ID: AR0000509) has 81 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,367 people using Surface Water sources.
How many people does Mansfield Waterworks serve? ▼
Mansfield Waterworks serves 2,367 people in Mansfield, Arkansas. It is a Local-owned system using Surface Water water sources with 950 service connections.
What type of violations does Mansfield Waterworks have? ▼
Mansfield Waterworks has 81 total violations: 39 health-based violations (MCL exceedances or treatment failures), 22 monitoring/reporting violations, and 24 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mansfield Waterworks water? ▼
No PFAS testing data is available for Mansfield Waterworks under the EPA's UCMR5 monitoring program.
What water source does Mansfield Waterworks use? ▼
Mansfield Waterworks 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.