CHICAGO RIDGE: EPA violation history, explained
CHICAGO RIDGE has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 14,130, over 2,869 connections.
Ranked against every other system in this dataset
CHICAGO RIDGE has 4 violations on record in total, 1 of them health-based - ranking it 8,837th of 12,903 systems by violation count, the 32th percentile nationally.
Against the IL average
CHICAGO RIDGE's 1 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
CHICAGO RIDGE's most recent violation on record is dated 2015-01-07, with the most recent health-based one dated 1999-01-06. Last reported to EPA: 05/27/2026.
The concern categories on record
CHICAGO RIDGE'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 CHICAGO RIDGE's record does not cover
Everything on this page is CHICAGO RIDGE's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 1 health-based violation on file for CHICAGO RIDGE - 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.