What's in TOMAHAWK WATERWORKS's water?
TOMAHAWK WATERWORKS has at least one health-based violation EPA's ECHO database still lists as unaddressed - the required fix has not been reported complete. Population served: 3,180, over 1,500 connections.
How this compares nationally
Out of 12,903 systems in this dataset, TOMAHAWK WATERWORKS ranks 5,294th by violation burden (59th percentile) - 10 violations total, 3 health-baseds.
How TOMAHAWK WATERWORKS compares within WI
WI's 202 covered systems average 3.6 health-based violations each; TOMAHAWK WATERWORKS carries 3, not more than typical for the state. 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 TOMAHAWK WATERWORKS is from 2025-05-10 (health-based: 2025-05-10). Last reported to EPA: 05/29/2026.
What kind of problem, specifically
TOMAHAWK WATERWORKS'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:
- Lead & copper - flagged from: LEAD AND COPPER RULE REVISIONS
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What this data is and is not
This is what TOMAHAWK WATERWORKS 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 10 logged violations can see. The guide to what this data misses covers that gap.