Is LYONS's water safe to drink?
LYONS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 10,304 people get their water from it, across 2,975 connections.
How this compares nationally
Out of 12,903 systems in this dataset, LYONS ranks 2,771th by violation burden (79th percentile) - 15 violations total, 7 health-baseds.
How LYONS compares within IL
Among the 560 IL systems in this dataset, the average is 5.0 health-based violations - LYONS's 7 is above that. 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 LYONS is from 2025-02-07 (health-based: 1998-01-06). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
LYONS'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
- 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 LYONS 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. Between the utility's meter and LYONS's customers' taps is household plumbing, invisible to a system-level record ranked 2,771th of 12,903 by violation count. The guide to what this data misses covers that gap.