Is LONDONDERRY's water safe to drink?

LONDONDERRY's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. Population served: 6,255, over 1,791 connections.

Ranked against every other system in this dataset

2 total violations and 0 health-based ones put LONDONDERRY at the 7th percentile nationally for violation burden, rank 12,037 of 12,903.

How LONDONDERRY compares within NH

LONDONDERRY's 0 health-based violations sit within the NH average of 8.6, across 62 systems statewide. 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 LONDONDERRY is from 2013-01-10. Last reported to EPA: 06/23/2026.

What this data is and is not

LONDONDERRY'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 LONDONDERRY's customers' taps is household plumbing, invisible to a system-level record ranked 12,037th of 12,903 by violation count. The guide to what this data misses covers that gap.