Water Quality in Monmouth, IL
42 water systems serving 15,852 people
City Overview
Average lead detection across Monmouth water systems is 11.3 ppb (Moderate). The EPA action level is 15 ppb. 1 system have triggered action level violations.
Violation Summary
| Total violations on record | 791 |
| Health-based violations | 367 |
| Lead action level violations | 1 |
| Open (unresolved) violations | 0 |
Water Systems in Monmouth
Frequently Asked Questions
Is Monmouth tap water safe to drink?
Monmouth 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 Monmouth, Illinois?
Monmouth has 42 public water systems serving approximately 15,852 people. The average lead level across sampled systems is 11.3 ppb. There are 791 total violations on record.
Does Monmouth have lead in the water?
EPA monitoring data shows an average lead detection of 11.3 ppb across Monmouth's water systems. The EPA action level is 15 ppb. 1 system have triggered lead action level violations.
How many water utilities serve Monmouth?
42 public water systems are registered in Monmouth, Illinois with the EPA Safe Drinking Water Information System. Together they serve approximately 15,852 people.