MUNDELEIN: EPA violation history, explained
MUNDELEIN has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 31,500 people get their water from it, across 10,876 connections.
Ranked against every other system in this dataset
23 total violations and 3 health-based ones put MUNDELEIN at the 61th percentile nationally for violation burden, rank 4,990 of 12,903.
How MUNDELEIN compares within IL
MUNDELEIN's 3 health-based violations sit within the IL average of 5.0, across 560 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 MUNDELEIN is from 2024-01-01 (health-based: 2000-01-06). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
MUNDELEIN'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)
- Radionuclides - flagged from: Combined Radium (-226 and -228)
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 MUNDELEIN 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 23 logged violations can see. The guide to what this data misses covers that gap.