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Ellsworth, ME Tap Water Quality 2026

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

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

Main Utility: Ellsworth Water Department PWSID: ME0090520 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 4.00 ppb, 27% of the action level and no violations are open. No PFAS was detected.

B

Ellsworth earns a B for water quality

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

Lead: 4.00 ppb — 27% of the federal action level
PFAS tested, none detected
12 violations since 2015, 5 health-based
No violations currently open
Ellsworth's lead level vs. all Maine community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 4.00 ppb — 27% of the federal action level
✓ Lower lead than 21% of Maine utilities
Population Served
2946
~1564 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
12 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
27% of EPA action level
4.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 4.00 ppb, 27% 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 MONITORING AND REPORTING — TT 2024 Resolved
TTHM MCL EXCEEDANCE 0.0895 MG/L 0.080 mg/L 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Unaddressed
TTHM MCL EXCEEDANCE 0.086 MG/L 0.080 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.093 MG/L 0.080 mg/L 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2023 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2022 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2022 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2022 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2021 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

12 violations are on record since 2015, of which 5 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Ellsworth Water Department
PWSID ME0090520
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 2,946
Service connections 1,564
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Ellsworth tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 4.00 ppb, 27% of the action level.
Does Ellsworth water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Ellsworth? ▼
Ellsworth Water Department (PWSID ME0090520), one of 2 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2023-04-28. No significant deficiencies were recorded.

What Should Ellsworth 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.

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