Is NORWALK WATER SUPPLY's water safe to drink?
NORWALK WATER SUPPLY has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 14,334, over 5,982 connections.
How this compares nationally
9 total violations and 1 health-based ones put NORWALK WATER SUPPLY at the 36th percentile nationally for violation burden, rank 8,286 of 12,903.
How NORWALK WATER SUPPLY compares within IA
NORWALK WATER SUPPLY's 1 health-based violations sit within the IA average of 3.5, across 203 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 NORWALK WATER SUPPLY is from 2011-01-08 (health-based: 2003-01-07). Last reported to EPA: 06/17/2026.
What kind of problem, specifically
NORWALK WATER SUPPLY'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 NORWALK WATER SUPPLY 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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 9 logged violations can see. The guide to what this data misses covers that gap.