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Community Water System · PWS NY0600360

Dunkirk City

Dunkirk, New York 14048 - drinking water served from surface water sources to 12,743 people, tracked in EPA SDWIS and UCMR5.

12,743
People served
61
EPA violations
2
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 61 drinking-water violations at Dunkirk City, 3% of them health-based - below the New York per-system average.

61
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
12,743
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Dunkirk City

Dunkirk City is a local-owned community water system that delivers drinking water to 12,743 residents in Dunkirk, New York (Chautauqua County) through 5,557 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 61 total violations for this system , of which 2 (3%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 56 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Endrin, recorded in 2 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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%).

Dunkirk City's 61 violations sit below 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
12,743
Total Violations
61
Health-Based Violations
2
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
5,557
County
Chautauqua
School/Daycare
No
MCL Violations
0
Monitoring Violations
56
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Endrin MR 2 2023
BHC-GAMMA MR 2 2023
Methoxychlor MR 2 2023
Toxaphene MR 2 2023
Dalapon MR 2 2023
Di(2-ethylhexyl) adipate MR 2 2023
OXAMYL MR 2 2023
Di(2-ethylhexyl) phthalate MR 2 2023
Picloram MR 2 2023
Aldicarb sulfoxide MR 2 2023
Atrazine MR 2 2023
LASSO MR 2 2023
Heptachlor MR 2 2023
2,4-D MR 2 2023
2,4,5-TP MR 2 2023
HEXACHLOROBENZENE MR 2 2023
Benzo(a)pyrene MR 2 2023
Chlordane MR 2 2023
Aldicarb sulfone MR 2 2023
Total Polychlorinated Biphenyls (PCB) MR 2 2023
Aldicarb MR 2 2023
Carbofuran MR 2 2023
LEAD AND COPPER RULE REVISIONS RPT 2 2024
LEAD AND COPPER RULE REVISIONS TT 2 2024
Simazine MR 2 2023
Hexachlorocyclopentadiene MR 2 2023
Heptachlor epoxide MR 2 2023
Pentachlorophenol MR 2 2023
Dinoseb MR 2 2023
ETHYLENE DIBROMIDE MR 2 2023

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFTA 8/7/2023 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 8/7/2023 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 8/7/2023 <5.00 ppt 5.00 ppt Not Detected
NFDHA 8/7/2023 <20.00 ppt 20.00 ppt Not Detected
NMeFOSAA 8/7/2023 <6.00 ppt 6.00 ppt Not Detected
HFPO-DA 8/7/2023 <5.00 ppt 5.00 ppt Not Detected
PFBS 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 8/7/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 8/7/2023 <4.00 ppt 4.00 ppt Not Detected
PFOA 8/7/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 8/7/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 8/7/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpS 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 8/7/2023 <5.00 ppt 5.00 ppt Not Detected
PFPeS 8/7/2023 <4.00 ppt 4.00 ppt Not Detected
6:2 FTS 8/7/2023 <5.00 ppt 5.00 ppt Not Detected
PFEESA 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 8/7/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 8/7/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 8/7/2023 <4.00 ppt 4.00 ppt Not Detected
9Cl-PF3ONS 8/7/2023 <2.00 ppt 2.00 ppt Not Detected
PFMBA 4/14/2023 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 4/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 4/14/2023 <7.00 ppt 7.00 ppt Not Detected
PFTA 4/14/2023 <8.00 ppt 8.00 ppt Not Detected
9Cl-PF3ONS 4/14/2023 <2.00 ppt 2.00 ppt Not Detected
PFHpS 4/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 4/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFUnA 4/14/2023 <2.00 ppt 2.00 ppt Not Detected
PFEESA 4/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 4/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 4/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 4/14/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 4/14/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 4/14/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 4/14/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 4/14/2023 <5.00 ppt 5.00 ppt Not Detected
NFDHA 4/14/2023 <20.00 ppt 20.00 ppt Not Detected
ADONA 4/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 4/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 4/14/2023 <4.00 ppt 4.00 ppt Not Detected
HFPO-DA 4/14/2023 <5.00 ppt 5.00 ppt Not Detected

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 Dunkirk City.

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 NY0600360 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 Dunkirk City 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
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / NY0600360 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / NY0600360 / 5200
2023 Endrin MR 2 SDWIS / NY0600360 / 2005
2023 BHC-GAMMA MR 2 SDWIS / NY0600360 / 2010
2023 Methoxychlor MR 2 SDWIS / NY0600360 / 2015
2023 Toxaphene MR 2 SDWIS / NY0600360 / 2020
2023 Dalapon MR 2 SDWIS / NY0600360 / 2031
2023 Di(2-ethylhexyl) adipate MR 2 SDWIS / NY0600360 / 2035
2023 OXAMYL MR 2 SDWIS / NY0600360 / 2036
2023 Di(2-ethylhexyl) phthalate MR 2 SDWIS / NY0600360 / 2039
2023 Picloram MR 2 SDWIS / NY0600360 / 2040
2023 Aldicarb sulfoxide MR 2 SDWIS / NY0600360 / 2043
2023 Atrazine MR 2 SDWIS / NY0600360 / 2050
2023 LASSO MR 2 SDWIS / NY0600360 / 2051
2023 Heptachlor MR 2 SDWIS / NY0600360 / 2065

How Dunkirk City Compares

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

Metric Dunkirk City New York avg Federal benchmark
Total violations 61 68.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 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 12,743 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 Dunkirk City water safe to drink? ▼
Dunkirk City (PWS ID: NY0600360) has 61 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 12,743 people using Surface Water sources.
How many people does Dunkirk City serve? ▼
Dunkirk City serves 12,743 people in Dunkirk, New York. It is a Local-owned system using Surface Water water sources with 5,557 service connections.
What type of violations does Dunkirk City have? ▼
Dunkirk City has 61 total violations: 2 health-based violations (MCL exceedances or treatment failures), 56 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Dunkirk City water? ▼
No. Dunkirk City was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Dunkirk City use? ▼
Dunkirk City 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). 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.