States ›Maine ›Washington County ›Dennysville

Dennysville, ME Tap Water Quality 2026

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

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

Main Utility: Dennysville Housing PWSID: ME0090427 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.40 ppb, 9% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Dennysville earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 1.40 ppb — 9% of the federal action level
PFAS never sampled at this system
8 violations since 2015, 0 health-based
No violations currently open
Dennysville's lead level vs. all Maine community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.40 ppb — 9% of the federal action level
✓ Lower lead than 83% of Maine utilities
Population Served
3
~17 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
8 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
9% of EPA action level
1.40 ppb
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
107.7% of EPA action level
1,400 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 1.40 ppb, 9% 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. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Revised Total Coliform Rule MONITORING FAILURE — — 2025 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2023 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
E. COLI MONITORING AND REPORTING — 0 2016 Unaddressed
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2016 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2016 Resolved
Endothall MONITORING AND REPORTING — 0.1 mg/L 2016–2024 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

8 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Dennysville Housing
PWSID ME0090427
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 3
Service connections 17
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Dennysville tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.40 ppb, 9% of the action level.
Does Dennysville water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Dennysville? ▼
Dennysville Housing (PWSID ME0090427). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2026-01-12. No significant deficiencies were recorded.

What Should Dennysville Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
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
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

Nearby Cities in Maine

Calais, Me Tap Water Quality 2026 Washington Machias, Me Tap Water Quality 2026 Washington Eastport, Me Tap Water Quality 2026 Washington Baileyville, Me Tap Water Quality 2026 Washington Lubec, Me Tap Water Quality 2026 Washington Milbridge, Me Tap Water Quality 2026 Washington