COLLINSVILLE: EPA violation history, explained
COLLINSVILLE has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 29,500 people get their water from it, across 13,000 connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, COLLINSVILLE ranks 2,481th by violation burden (81th percentile) - 13 violations total, 8 health-baseds.
Against the IL average
IL's 560 covered systems average 5.0 health-based violations each; COLLINSVILLE carries 8, more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
COLLINSVILLE's most recent violation on record is dated 1995-01-12, with the most recent health-based one dated 1995-01-12. Last reported to EPA: 05/27/2026.
The concern categories on record
COLLINSVILLE'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 COLLINSVILLE's record does not cover
This is what COLLINSVILLE 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. This record - 8 health-based violations on file for COLLINSVILLE - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.