EAU CLAIRE WATERWORKS: EPA violation history, explained
EAU CLAIRE WATERWORKS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 70,587 people get their water from it, across 26,997 connections.
How this compares nationally
3 total violations and 1 health-based ones put EAU CLAIRE WATERWORKS at the 31th percentile nationally for violation burden, rank 8,933 of 12,903.
How EAU CLAIRE WATERWORKS compares within
EAU CLAIRE WATERWORKS's 1 health-based violations sit within the average of 11.2, across 244 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 EAU CLAIRE WATERWORKS is from 1999-01-06 (health-based: 1999-01-06). Last reported to EPA: 05/29/2026.
What kind of problem, specifically
EAU CLAIRE 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:
- 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
EAU CLAIRE WATERWORKS'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 3 logged violations can see. The guide to what this data misses covers that gap.