Water Quality in Northbrook, IL
95 water systems serving 68,192 people
City Overview
Average lead detection across Northbrook water systems is 2.6 ppb (Low). The EPA action level is 15 ppb. 1 system have triggered action level violations.
Violation Summary
| Total violations on record | 2694 |
| Health-based violations | 300 |
| Lead action level violations | 1 |
| Open (unresolved) violations | 0 |
Water Systems in Northbrook
Frequently Asked Questions
Is Northbrook tap water safe to drink?
Northbrook 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 Northbrook, Illinois?
Northbrook has 95 public water systems serving approximately 68,192 people. The average lead level across sampled systems is 2.6 ppb. There are 2694 total violations on record.
Does Northbrook have lead in the water?
EPA monitoring data shows an average lead detection of 2.6 ppb across Northbrook's water systems. The EPA action level is 15 ppb. 1 system have triggered lead action level violations.
How many water utilities serve Northbrook?
95 public water systems are registered in Northbrook, Illinois with the EPA Safe Drinking Water Information System. Together they serve approximately 68,192 people.