Skip to main content
WaterSafeCheck

Calais, ME Tap Water Quality

Water safety reports for all 1 ZIP code in Calais, Maine

Average Score

82/100

Health Violations

1

ZIP Codes

1

High Lead Risk

1

of 1 ZIP codes

B

About Tap Water in Calais, ME

The drinking water in Calais, ME generally meets all federal health standards, earning a solid B grade with a composite safety score of 82/100 across 1 ZIP code. While the primary water utility, Calais Water Department, maintains adequate compliance with EPA regulations, there have been minor or administrative violations on record. Overall, residents receive safe tap water that is actively monitored by Maine Center for Disease Control and Prevention.

Over the past 5 years, Calais has recorded 1 health-based violation. While occasional violations can occur due to seasonal changes or temporary infrastructure issues, Calais Water Department is legally required to resolve these quickly and notify the public via their annual Consumer Confidence Report. The city's water supply, primarily drawn from ground water, is treated to address these specific contaminants.

Additionally, lead exposure risk remains a critical issue for certain neighborhoods. EPA data indicates that 1 out of 1 ZIP codes in Calais are rated as High or Very High risk for lead. This risk is often driven by aging homes with pre-1986 plumbing containing lead solder or service lines. Families in these areas should test their tap water and consider NSF/ANSI 53 certified filters.

⚠ Lead Risk Alert: Some ZIP codes in Calais are rated High or Very High for lead exposure risk based on EPA data. Search your specific ZIP code for a detailed lead level report.

Health-Based Contaminant Violations in Calais

EPA records indicate that the following contaminants have exceeded Safe Drinking Water Act Maximum Contaminant Levels (MCLs) in Calais water systems over the past 5 years.

Haloacetic Acids (HAA5)

Note: The presence of a past violation does not necessarily mean current water is unsafe. Utilities are required to take corrective action. Review your Consumer Confidence Report for the latest status.

Water Quality by ZIP Code — Calais, ME

Click any ZIP code for the full water quality report

B
04619

Calais, ME

Score: 82/1001 violation

Frequently Asked Questions — Calais Water Quality

Is tap water safe to drink in Calais, ME?+
Yes — tap water in Calais meets all federal EPA standards and earns a B grade. It is generally safe for healthy adults. As always, running your tap for 30 seconds before use and using a filter adds extra protection for vulnerable populations.
What is the water quality score for Calais?+
The average water quality score across 1 ZIP code in Calais, ME is 82/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Calais have lead in its tap water?+
1 out of 1 ZIP codes in Calais are rated High or Very High for lead exposure risk. Older homes built before 1986 may have lead service lines or plumbing fixtures. Residents should run their tap for 30 seconds before use and consider a certified NSF/ANSI 53 lead filter.
How do I get the water quality report for Calais?+
Each ZIP code in Calais has a full water quality report on this site — click any ZIP code below. You can also get the annual Consumer Confidence Report (CCR) from your local water utility. The CCR is required to be published every year by July 1 and contains actual contaminant measurements and violation history.
Where does Calais's tap water come from?+
Tap water in Calais, ME primarily comes from ground water. Groundwater systems pump water from underground aquifers, which is naturally filtered through soil and rock but can still contain naturally occurring contaminants.

Looking for water quality in other cities in Maine?

View All Cities in Maine →