EXETER WATER DEPT: EPA violation history, explained
EXETER WATER DEPT had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 12,236 people get their water from it, across 3,515 connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, EXETER WATER DEPT ranks 391th by violation burden (97th percentile) - 69 violations total, 39 health-baseds.
Against the NH average
NH's 62 covered systems average 8.6 health-based violations each; EXETER WATER DEPT carries 39, more than typical for the state. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
EXETER WATER DEPT's most recent violation on record is dated 2025-01-10, with the most recent health-based one dated 2025-01-10. Last reported to EPA: 06/23/2026.
The concern categories on record
EXETER 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); Interim Enhanced Surface Water Treatment Rule
- Other regulated metals - flagged from: Arsenic
- Disinfection byproducts - flagged from: TTHM
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 EXETER WATER DEPT's record does not cover
EXETER 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. Between the utility's meter and EXETER WATER DEPT's customers' taps is household plumbing, invisible to a system-level record ranked 391th of 12,903 by violation count. The guide to what this data misses covers that gap.