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MASON WATER DEPT

PWS ID: WV3302708 · MASON, West Virginia 25260

MASON WATER DEPT serves 1,679 people in MASON, West Virginia using Groundwater water sources. It has 493 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: MASON WATER DEPT

MASON WATER DEPT is a local-owned community water system that delivers drinking water to 1,679 residents in MASON, West Virginia (Mason County) through 769 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 493 total violations for this system , of which 4 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 426 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 Nitrate, recorded in 42 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. MASON WATER DEPT's 493 violations sit above the West Virginia average. Statewide, 46 of 102 UCMR5-tested systems have reported PFAS detections (45.1%). 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
1,679
Total Violations
493
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
769
County
Mason
School/Daycare
No
MCL Violations
0
Monitoring Violations
426
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 42 2025
Public Notice Other 34 2025
Consumer Confidence Rule Other 17 2025
Lead and Copper Rule MR 15 2023
TTHM MR 14 2020
Total Haloacetic Acids (HAA5) MR 14 2020
Chlorine MR 13 2025
Di(2-ethylhexyl) adipate MR 11 2013
OXAMYL MR 11 2013
Picloram MR 11 2013
Atrazine MR 11 2013
Total Polychlorinated Biphenyls (PCB) MR 11 2013
Simazine MR 11 2013
Di(2-ethylhexyl) phthalate MR 11 2013
Hexachlorocyclopentadiene MR 11 2013
Carbofuran MR 11 2013
LASSO MR 11 2013
Heptachlor MR 11 2013
2,4-D MR 11 2013
Heptachlor epoxide MR 11 2013
Benzo(a)pyrene MR 11 2013
BHC-GAMMA MR 11 2013
Chlordane MR 11 2013
Methoxychlor MR 8 2013
Endrin MR 4 2002
Toxaphene MR 4 2002
Dinoseb MR 4 2002
2,4,5-TP MR 4 2002
HEXACHLOROBENZENE MR 4 2002
ETHYLENE DIBROMIDE MR 4 2002

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 MASON WATER DEPT.

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 WV3302708 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
2025 Nitrate MR 42 SDWIS / WV3302708 / 1040
2025 Public Notice Other 34 SDWIS / WV3302708 / 7500
2025 Consumer Confidence Rule Other 17 SDWIS / WV3302708 / 7000
2025 Chlorine MR 13 SDWIS / WV3302708 / 0999
2023 Lead and Copper Rule MR 15 SDWIS / WV3302708 / 5000
2022 Revised Total Coliform Rule MON 4 SDWIS / WV3302708 / 8000
2021 Groundwater Rule MR 4 SDWIS / WV3302708 / 0700
2020 TTHM MR 14 SDWIS / WV3302708 / 2950
2020 Total Haloacetic Acids (HAA5) MR 14 SDWIS / WV3302708 / 2456
2017 Nitrite MR 4 SDWIS / WV3302708 / 1041
2013 Di(2-ethylhexyl) adipate MR 11 SDWIS / WV3302708 / 2035
2013 OXAMYL MR 11 SDWIS / WV3302708 / 2036
2013 Picloram MR 11 SDWIS / WV3302708 / 2040
2013 Atrazine MR 11 SDWIS / WV3302708 / 2050
2013 Total Polychlorinated Biphenyls (PCB) MR 11 SDWIS / WV3302708 / 2383

How MASON WATER DEPT Compares

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

Metric MASON WATER DEPT West Virginia avg Federal benchmark
Total violations 493 242.4 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 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 1,679 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is MASON WATER DEPT water safe to drink? ▼
MASON WATER DEPT (PWS ID: WV3302708) has 493 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,679 people using Groundwater sources.
How many people does MASON WATER DEPT serve? ▼
MASON WATER DEPT serves 1,679 people in MASON, West Virginia. It is a Local-owned system using Groundwater water sources with 769 service connections.
What type of violations does MASON WATER DEPT have? ▼
MASON WATER DEPT has 493 total violations: 4 health-based violations (MCL exceedances or treatment failures), 426 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MASON WATER DEPT water? ▼
No PFAS testing data is available for MASON WATER DEPT under the EPA's UCMR5 monitoring program.
What water source does MASON WATER DEPT use? ▼
MASON WATER DEPT uses Groundwater 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.

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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.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial