SOMERSWORTH WATER WORKS: EPA violation history, explained
SOMERSWORTH WATER WORKS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 12,200, over 3,825 connections.
Ranked against every other system in this dataset
38 total violations and 35 health-based ones put SOMERSWORTH WATER WORKS at the 96th percentile nationally for violation burden, rank 465 of 12,903.
How SOMERSWORTH WATER WORKS compares within NH
SOMERSWORTH WATER WORKS's 35 health-based violations sit above the NH average of 8.6, across 62 systems statewide. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for SOMERSWORTH WATER WORKS is from 2007-01-10 (health-based: 2007-01-04). Last reported to EPA: 06/23/2026.
What kind of problem, specifically
SOMERSWORTH 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)
- Synthetic organic chemicals / pesticides / VOCs - flagged from: CARBON, TOTAL
- Disinfection byproducts - flagged from: TTHM; Total Haloacetic Acids (HAA5)
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
SOMERSWORTH 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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 38 logged violations can see. The guide to what this data misses covers that gap.