NATICK WATER AND SEWER DIVISION: EPA violation history, explained

NATICK WATER AND SEWER DIVISION has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 37,006, over 11,546 connections.

Ranked against every other system in this dataset

116 total violations and 3 health-based ones put NATICK WATER AND SEWER DIVISION at the 64th percentile nationally for violation burden, rank 4,694 of 12,903.

Against the MA average

MA's 283 covered systems average 7.0 health-based violations each; NATICK WATER AND SEWER DIVISION carries 3, not more than typical for the state. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

NATICK WATER AND SEWER DIVISION's most recent violation on record is dated 2014-01-04, with the most recent health-based one dated 2000-01-10. Last reported to EPA: 06/22/2026.

The concern categories on record

NATICK WATER AND SEWER DIVISION'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 NATICK WATER AND SEWER DIVISION's record does not cover

This is what NATICK WATER AND SEWER DIVISION 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 NATICK WATER AND SEWER DIVISION's customers' taps is household plumbing, invisible to a system-level record ranked 4,694th of 12,903 by violation count. The guide to what this data misses covers that gap.