Muskego Water Utility, WI Water Quality
Muskego Water Utility: EPA violation history, explained
Muskego Water Utility had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 8,150 people get their water from it, across 3,018 connections.
Muskego Water Utility's record against the rest of the country
32 total violations and 2 health-based ones put Muskego Water Utility at the 53th percentile nationally for violation burden, rank 6,052 of 12,903.
How Muskego Water Utility compares within WI
WI's 259 covered systems average 5.4 health-based violations each; Muskego Water Utility carries 2, 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 Muskego Water Utility is from 2025-05-10 (health-based: 2025-05-10). Last reported to EPA: 05/29/2026.
What kind of problem, specifically
Muskego Water Utility'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 Muskego Water Utility 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 32 logged violations can see. The guide to what this data misses covers that gap.