BRISTOL WATER WORKS: EPA violation history, explained

BRISTOL WATER WORKS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 3,575 people get their water from it, across 1,430 connections.

Ranked against every other system in this dataset

Out of 12,903 systems in this dataset, BRISTOL WATER WORKS ranks 4,578th by violation burden (65th percentile) - 5 violations total, 4 health-baseds.

How BRISTOL WATER WORKS compares within NH

Among the 62 NH systems in this dataset, the average is 8.6 health-based violations - BRISTOL WATER WORKS's 4 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 BRISTOL WATER WORKS is from 2011-01-01 (health-based: 2011-01-01). Last reported to EPA: 06/23/2026.

What kind of problem, specifically

BRISTOL WATER WORKS'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

This is what BRISTOL WATER WORKS 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 BRISTOL WATER WORKS's customers' taps is household plumbing, invisible to a system-level record ranked 4,578th of 12,903 by violation count. The guide to what this data misses covers that gap.