What's in MANCHESTER WATER WORKS's water?
MANCHESTER WATER WORKS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 123,500 people get their water from it, across 32,061 connections.
How this compares nationally
2 total violations and 1 health-based ones put MANCHESTER WATER WORKS at the 30th percentile nationally for violation burden, rank 9,071 of 12,903.
Against the NH average
NH's 62 covered systems average 8.6 health-based violations each; MANCHESTER WATER WORKS carries 1, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
MANCHESTER WATER WORKS's most recent violation on record is dated 2013-01-07, with the most recent health-based one dated 2013-01-07. Last reported to EPA: 06/23/2026.
The concern categories on record
MANCHESTER 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 MANCHESTER WATER WORKS's record does not cover
MANCHESTER WATER WORKS'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 MANCHESTER WATER WORKS's customers' taps is household plumbing, invisible to a system-level record ranked 9,071th of 12,903 by violation count. The guide to what this data misses covers that gap.