What's in GROTON WATER DEPARTMENT's water?

GROTON WATER DEPARTMENT's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 5,456 people get their water from it, across 1,708 connections.

GROTON WATER DEPARTMENT's record against the rest of the country

Out of 12,903 systems in this dataset, GROTON WATER DEPARTMENT ranks 9,616th by violation burden (25th percentile) - 49 violations total, 0 health-baseds.

How GROTON WATER DEPARTMENT compares within MA

Among the 283 MA systems in this dataset, the average is 7.0 health-based violations - GROTON WATER DEPARTMENT'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 GROTON WATER DEPARTMENT is from 2013-01-10. Last reported to EPA: 06/22/2026.

What this data is and is not

GROTON WATER DEPARTMENT'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 - 0 health-based violations on file for GROTON WATER DEPARTMENT - 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.