Water Quality in Chicago, IL
158 water systems serving 2,857,849 people
City Overview
Average lead detection across Chicago water systems is 1.0 ppb (Low). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 4278 |
| Health-based violations | 259 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in Chicago
Frequently Asked Questions
Is Chicago tap water safe to drink?
Chicago tap water meets EPA standards for most contaminants. Review the individual water system pages below for the latest lead sample results and violation history.
What is the water quality in Chicago, Illinois?
Chicago has 158 public water systems serving approximately 2,857,849 people. The average lead level across sampled systems is 1.0 ppb. There are 4278 total violations on record.
Does Chicago have lead in the water?
EPA monitoring data shows an average lead detection of 1.0 ppb across Chicago's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve Chicago?
158 public water systems are registered in Chicago, Illinois with the EPA Safe Drinking Water Information System. Together they serve approximately 2,857,849 people.