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Community Water System · PWS NY0600368

Mayville Village

Mayville, New York 14757 - drinking water served from groundwater sources to 2,000 people, tracked in EPA SDWIS and UCMR5.

2,000
People served
88
EPA violations
5
Health-based
Untested
UCMR5 result

The verdict

EPA records 88 drinking-water violations at Mayville Village, 6% of them health-based - above the New York per-system average.

88
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
2,000
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mayville Village

Mayville Village is a local-owned community water system that delivers drinking water to 2,000 residents in Mayville, New York (Chautauqua County) through 788 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 88 total violations for this system , of which 5 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 71 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 Coliform (TCR), recorded in 5 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 New York, EPA tracks 8,098 public water systems serving 19,294,951 people, with 552,003 cumulative violations and 26,817 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 68.2 violations. Statewide, 129 of 332 UCMR5-tested systems have reported PFAS detections (38.9%).

Mayville Village's 88 violations sit above the New York 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
2,000
Total Violations
88
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
788
County
Chautauqua
School/Daycare
No
MCL Violations
5
Monitoring Violations
71
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 5 2001
Nitrate MR 3 2023
1,2,4-Trichlorobenzene MR 2 2021
cis-1,2-Dichloroethylene MR 2 2021
o-Dichlorobenzene MR 2 2021
p-Dichlorobenzene MR 2 2021
1,1-Dichloroethylene MR 2 2021
1,2-Dichloropropane MR 2 2021
Trichloroethylene MR 2 2021
CHLOROBENZENE MR 2 2021
Ethylbenzene MR 2 2021
1,2-Dichloroethane MR 2 2021
1,1,1-Trichloroethane MR 2 2021
Benzene MR 2 2021
1,1,2-Trichloroethane MR 2 2021
DICHLOROMETHANE MR 2 2021
Styrene MR 2 2021
Carbon tetrachloride MR 2 2021
Vinyl chloride MR 2 2021
Toluene MR 2 2021
trans-1,2-Dichloroethylene MR 2 2021
Tetrachloroethylene MR 2 2021
Endrin MR 1 2022
BHC-GAMMA MR 1 2022
Methoxychlor MR 1 2022
Toxaphene MR 1 2022
Dalapon MR 1 2022
Di(2-ethylhexyl) adipate MR 1 2022
Di(2-ethylhexyl) phthalate MR 1 2022
Picloram MR 1 2022

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 Mayville Village.

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 NY0600368 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New York Drinking Water Authority

New York State Department of Health, Public Water Systems is the primacy agency that licenses and inspects Mayville Village under EPA-delegated authority.

Open NY regulator portal

Source: New York State Department of Health, Public Water Systems

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 Nitrate MR 3 SDWIS / NY0600368 / 1040
2022 Endrin MR 1 SDWIS / NY0600368 / 2005
2022 BHC-GAMMA MR 1 SDWIS / NY0600368 / 2010
2022 Methoxychlor MR 1 SDWIS / NY0600368 / 2015
2022 Toxaphene MR 1 SDWIS / NY0600368 / 2020
2022 Dalapon MR 1 SDWIS / NY0600368 / 2031
2022 Di(2-ethylhexyl) adipate MR 1 SDWIS / NY0600368 / 2035
2022 Di(2-ethylhexyl) phthalate MR 1 SDWIS / NY0600368 / 2039
2022 Picloram MR 1 SDWIS / NY0600368 / 2040
2022 Dinoseb MR 1 SDWIS / NY0600368 / 2041
2022 Hexachlorocyclopentadiene MR 1 SDWIS / NY0600368 / 2042
2022 Aldicarb sulfoxide MR 1 SDWIS / NY0600368 / 2043
2022 Aldicarb sulfone MR 1 SDWIS / NY0600368 / 2044
2022 Aldicarb MR 1 SDWIS / NY0600368 / 2047
2022 LASSO MR 1 SDWIS / NY0600368 / 2051

How Mayville Village Compares

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

Metric Mayville Village New York avg Federal benchmark
Total violations 88 68.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 5 3.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 38.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,000 2,383 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 8,098 regulated public water systems in New York.

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 Mayville Village water safe to drink? ▼
Mayville Village (PWS ID: NY0600368) has 88 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,000 people using Groundwater sources.
How many people does Mayville Village serve? ▼
Mayville Village serves 2,000 people in Mayville, New York. It is a Local-owned system using Groundwater water sources with 788 service connections.
What type of violations does Mayville Village have? ▼
Mayville Village has 88 total violations: 5 health-based violations (MCL exceedances or treatment failures), 71 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mayville Village water? ▼
No PFAS testing data is available for Mayville Village under the EPA's UCMR5 monitoring program.
What water source does Mayville Village use? ▼
Mayville Village 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.
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.