WILLIAMSTOWN WATER DEPT: EPA violation history, explained

WILLIAMSTOWN WATER DEPT's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 7,326 people get their water from it, across 2,119 connections.

Ranked against every other system in this dataset

WILLIAMSTOWN WATER DEPT has 7 violations on record in total, 0 of thems health-based - ranking it 10,791th of 12,903 systems by violation count, the 16th percentile nationally.

How WILLIAMSTOWN WATER DEPT compares within MA

Among the 283 MA systems in this dataset, the average is 7.0 health-based violations - WILLIAMSTOWN WATER DEPT's 0 is at or below that. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

The last violation EPA has on record for WILLIAMSTOWN WATER DEPT is from 2015-01-06. Last reported to EPA: 06/22/2026.

What this data is and is not

This is what WILLIAMSTOWN 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. This record - 0 health-based violations on file for WILLIAMSTOWN 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.