States ›New York ›Chautauqua County ›Dunkirk

Dunkirk, NY Tap Water Quality 2026

Water quality report for Dunkirk, NY — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Dunkirk's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Dunkirk City PWSID: NY0600360 Updated: 2026 Q2
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1 violation currently open

Lead is 9.70 ppb, 65% of the action level. No PFAS was detected.

D

Dunkirk earns a D for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 9.70 ppb — 65% of the federal action level
PFAS tested, none detected
30 violations since 2015, 1 health-based
1 violation currently open
Dunkirk's lead level vs. all New York community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 9.70 ppb — 65% of the federal action level
✓ Lower lead than 5% of New York utilities
Population Served
12743
~5557 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
1
1 open of 30 since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
65% of EPA action level
9.70 ppb
Action level: 15 ppb
The 90th-percentile lead result is 9.70 ppb, 65% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Unaddressed
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Unaddressed
Endrin MONITORING AND REPORTING — 0.002 mg/L 2023–2024 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2023–2024 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2023–2024 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2023–2024 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2023–2024 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2023–2024 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2023–2024 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2023–2024 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2023–2024 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2023–2024 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2023–2024 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2023–2024 Resolved
Aldicarb sulfoxide MONITORING AND REPORTING — — 2023–2024 Resolved
Aldicarb sulfone MONITORING AND REPORTING — — 2023–2024 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2023–2024 Resolved
Aldicarb MONITORING AND REPORTING — — 2023–2024 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2023–2024 Resolved
LASSO MONITORING AND REPORTING — — 2023–2024 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2023–2024 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2023–2024 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2023–2024 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2023–2024 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2023–2024 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2023–2024 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2023–2024 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2023–2024 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2023–2024 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2023–2024 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

1 violation remains open, out of 30 recorded since 2015 (1 health-based).

About the Main Water System

Utility Dunkirk City
PWSID NY0600360
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 12,743
Service connections 5,557
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Dunkirk tap water safe to drink? ▼
No federal limit is exceeded on record. 1 violation(s) remain open. Lead is 9.70 ppb, 65% of the action level.
Does Dunkirk water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Dunkirk? ▼
Dunkirk City (PWSID NY0600360). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2022-07-25. No significant deficiencies were recorded.

What Should Dunkirk Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Follow the open violation
This system has an unresolved violation. Contact the supplier for its corrective-action schedule.

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