Is MILLIS WATER DEPT's water safe to drink?
MILLIS WATER DEPT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 9,055 people get their water from it, across 3,068 connections.
How this compares nationally
MILLIS WATER DEPT has 67 violations on record in total, 4 of thems health-based - ranking it 3,991th of 12,903 systems by violation count, the 69th percentile nationally.
How MILLIS WATER DEPT compares within MA
Among the 283 MA systems in this dataset, the average is 7.0 health-based violations - MILLIS WATER DEPT's 4 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for MILLIS WATER DEPT is from 2017-01-07 (health-based: 2012-01-05). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
MILLIS 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:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
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 this data is and is not
MILLIS WATER DEPT's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. This record - 4 health-based violations on file for MILLIS WATER DEPT - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.