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Community Water System · PWS WV3303909

Masontown Water Works

Masontown, West Virginia 26542 - drinking water served from surface water sources to 2,239 people, tracked in EPA SDWIS and UCMR5.

2,239
People served
145
EPA violations
39
Health-based
Untested
UCMR5 result

The verdict

EPA records 145 drinking-water violations at Masontown Water Works, 27% of them health-based - below the West Virginia per-system average.

145
Total EPA violations on record
27%
Health-based (MCL / treatment failure)
2,239
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Masontown Water Works

Masontown Water Works is a local-owned community water system that delivers drinking water to 2,239 residents in Masontown, West Virginia (Preston County) through 941 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 145 total violations for this system , of which 39 (27%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 62 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 Interim Enhanced Surface Water Treatment Rule, recorded in 32 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across West Virginia, EPA tracks 774 public water systems serving 1,597,057 people, with 187,590 cumulative violations and 11,480 health-based violations on record. About 99% of systems in the state carry at least one violation, and state-wide the average per system is 242.4 violations. Statewide, 46 of 102 UCMR5-tested systems have reported PFAS detections (45.1%).

Masontown Water Works's 145 violations sit below the West Virginia 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
2,239
Total Violations
145
Health-Based Violations
39
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
941
County
Preston
School/Daycare
No
MCL Violations
39
Monitoring Violations
62
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Interim Enhanced Surface Water Treatment Rule MR 32 2005
Public Notice Other 29 2023
TTHM MCL 23 2009
Total Haloacetic Acids (HAA5) MCL 16 2008
TTHM MR 14 2023
Total Haloacetic Acids (HAA5) MR 8 2015
Lead and Copper Rule MR 8 2022
Consumer Confidence Rule Other 4 2021
Turbidity Other 3 1993

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 Masontown Water Works.

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 WV3303909 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

West Virginia Drinking Water Authority

West Virginia'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 WV 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 Public Notice Other 29 SDWIS / WV3303909 / 7500
2023 TTHM MR 14 SDWIS / WV3303909 / 2950
2022 Lead and Copper Rule MR 8 SDWIS / WV3303909 / 5000
2021 Consumer Confidence Rule Other 4 SDWIS / WV3303909 / 7000
2015 Total Haloacetic Acids (HAA5) MR 8 SDWIS / WV3303909 / 2456
2009 TTHM MCL 23 SDWIS / WV3303909 / 2950
2008 Total Haloacetic Acids (HAA5) MCL 16 SDWIS / WV3303909 / 2456
2005 Interim Enhanced Surface Water Treatment Rule MR 32 SDWIS / WV3303909 / 0300
1993 Turbidity Other 3 SDWIS / WV3303909 / 0100

How Masontown Water Works Compares

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

Metric Masontown Water Works West Virginia avg Federal benchmark
Total violations 145 242.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 39 14.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 45.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,239 2,063 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 774 regulated public water systems in West Virginia.

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 Masontown Water Works water safe to drink? ▼
Masontown Water Works (PWS ID: WV3303909) has 145 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,239 people using Surface Water sources.
How many people does Masontown Water Works serve? ▼
Masontown Water Works serves 2,239 people in Masontown, West Virginia. It is a Local-owned system using Surface Water water sources with 941 service connections.
What type of violations does Masontown Water Works have? ▼
Masontown Water Works has 145 total violations: 39 health-based violations (MCL exceedances or treatment failures), 62 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Masontown Water Works water? ▼
No PFAS testing data is available for Masontown Water Works under the EPA's UCMR5 monitoring program.
What water source does Masontown Water Works use? ▼
Masontown Water Works 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.