Water Quality in St Louis, MO
35 water systems serving 309,039 people
City Overview
Average lead detection across St Louis water systems is 5.2 ppb (Moderate). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 809 |
| Health-based violations | 289 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in St Louis
Frequently Asked Questions
Is St Louis tap water safe to drink?
St Louis 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 St Louis, Missouri?
St Louis has 35 public water systems serving approximately 309,039 people. The average lead level across sampled systems is 5.2 ppb. There are 809 total violations on record.
Does St Louis have lead in the water?
EPA monitoring data shows an average lead detection of 5.2 ppb across St Louis's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve St Louis?
35 public water systems are registered in St Louis, Missouri with the EPA Safe Drinking Water Information System. Together they serve approximately 309,039 people.