Water Quality in Tucson, AZ
571 water systems serving 1,037,564 people
City Overview
Average lead detection across Tucson water systems is 2.1 ppb (Low). The EPA action level is 15 ppb. 4 systems have triggered action level violations.
Violation Summary
| Total violations on record | 32561 |
| Health-based violations | 1124 |
| Lead action level violations | 4 |
| Open (unresolved) violations | 0 |
Water Systems in Tucson
Frequently Asked Questions
Is Tucson tap water safe to drink?
Tucson 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 Tucson, Arizona?
Tucson has 571 public water systems serving approximately 1,037,564 people. The average lead level across sampled systems is 2.1 ppb. There are 32561 total violations on record.
Does Tucson have lead in the water?
EPA monitoring data shows an average lead detection of 2.1 ppb across Tucson's water systems. The EPA action level is 15 ppb. 4 systems have triggered lead action level violations.
How many water utilities serve Tucson?
571 public water systems are registered in Tucson, Arizona with the EPA Safe Drinking Water Information System. Together they serve approximately 1,037,564 people.