Water Quality in Modesto, CA
186 water systems serving 294,079 people
City Overview
Average lead detection across Modesto water systems is 0.9 ppb (Very low). The EPA action level is 15 ppb. 1 system have triggered action level violations.
Violation Summary
| Total violations on record | 1448 |
| Health-based violations | 786 |
| Lead action level violations | 1 |
| Open (unresolved) violations | 0 |
Water Systems in Modesto
Frequently Asked Questions
Is Modesto tap water safe to drink?
Modesto 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 Modesto, California?
Modesto has 186 public water systems serving approximately 294,079 people. The average lead level across sampled systems is 0.9 ppb. There are 1448 total violations on record.
Does Modesto have lead in the water?
EPA monitoring data shows an average lead detection of 0.9 ppb across Modesto's water systems. The EPA action level is 15 ppb. 1 system have triggered lead action level violations.
How many water utilities serve Modesto?
186 public water systems are registered in Modesto, California with the EPA Safe Drinking Water Information System. Together they serve approximately 294,079 people.