Clintonville Utilities, WI Water Quality
Clintonville Utilities: EPA violation history, explained
Clintonville Utilities had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 4,635, over 1,716 connections.
Ranked against every other system in this dataset
68 total violations and 12 health-based ones put Clintonville Utilities at the 88th percentile nationally for violation burden, rank 1,561 of 12,903.
How Clintonville Utilities compares within WI
WI's 259 covered systems average 5.4 health-based violations each; Clintonville Utilities carries 12, 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 Clintonville Utilities is from 2025-05-10 (health-based: 2025-05-10). Last reported to EPA: 05/29/2026.
What kind of problem, specifically
Clintonville Utilities'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; Lead and Copper Rule
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
- Other regulated metals - flagged from: Arsenic
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
Everything on this page is Clintonville Utilities's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 68 logged violations can see. The guide to what this data misses covers that gap.