What's in CHICAGO HEIGHTS's water?

CHICAGO HEIGHTS's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. Population served: 26,184, over 9,795 connections.

How this compares nationally

CHICAGO HEIGHTS has 15 violations on record in total, 0 of thems health-based - ranking it 10,164th of 12,903 systems by violation count, the 21th percentile nationally.

How CHICAGO HEIGHTS compares within IL

IL's 560 covered systems average 5.0 health-based violations each; CHICAGO HEIGHTS carries 0, not more than typical for the state. The clean-record guide covers what a comparison like this can hide.

Most recent violation on record

The last violation EPA has on record for CHICAGO HEIGHTS is from 2026-01-01. Last reported to EPA: 05/27/2026.

What this data is and is not

Everything on this page is CHICAGO HEIGHTS's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 0 health-based violations on file for CHICAGO HEIGHTS - 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.