Water Quality in Sonoma, CA
66 water systems serving 17,870 people
City Overview
Average lead detection across Sonoma water systems is 2.9 ppb (Low). The EPA action level is 15 ppb. 1 system have triggered action level violations.
Violation Summary
| Total violations on record | 622 |
| Health-based violations | 263 |
| Lead action level violations | 1 |
| Open (unresolved) violations | 0 |
Water Systems in Sonoma
Frequently Asked Questions
Is Sonoma tap water safe to drink?
Sonoma 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 Sonoma, California?
Sonoma has 66 public water systems serving approximately 17,870 people. The average lead level across sampled systems is 2.9 ppb. There are 622 total violations on record.
Does Sonoma have lead in the water?
EPA monitoring data shows an average lead detection of 2.9 ppb across Sonoma's water systems. The EPA action level is 15 ppb. 1 system have triggered lead action level violations.
How many water utilities serve Sonoma?
66 public water systems are registered in Sonoma, California with the EPA Safe Drinking Water Information System. Together they serve approximately 17,870 people.