DrinkingWaterCheck

CALAIS WATER DEPT: EPA violation history, explained

CALAIS WATER DEPT had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 2,775, over 1,110 connections.

CALAIS WATER DEPT's record against the rest of the country

CALAIS WATER DEPT has 8 violations on record in total, 4 of thems health-based - ranking it 4,484th of 12,903 systems by violation count, the 65th percentile nationally.

Against the ME average

Among the 63 ME systems in this dataset, the average is 6.0 health-based violations - CALAIS WATER DEPT's 4 is at or below that. See the lead and copper guide for why lead counts differently.

Most recent violation on record

CALAIS WATER DEPT's most recent violation on record is dated 2022-01-01, with the most recent health-based one dated 2022-01-01. Last reported to EPA: 05/13/2026.

The concern categories on record

CALAIS WATER DEPT's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:

The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.

What CALAIS WATER DEPT's record does not cover

This is what CALAIS WATER DEPT reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and CALAIS WATER DEPT's customers' taps is household plumbing, invisible to a system-level record ranked 4,484th of 12,903 by violation count. The guide to what this data misses covers that gap.