Water Quality in San Francisco, CA
75 water systems serving 212,089 people
City Overview
Average lead detection across San Francisco water systems is 1.4 ppb (Low). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 810 |
| Health-based violations | 275 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in San Francisco
Frequently Asked Questions
Is San Francisco tap water safe to drink?
San Francisco 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 San Francisco, California?
San Francisco has 75 public water systems serving approximately 212,089 people. The average lead level across sampled systems is 1.4 ppb. There are 810 total violations on record.
Does San Francisco have lead in the water?
EPA monitoring data shows an average lead detection of 1.4 ppb across San Francisco's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve San Francisco?
75 public water systems are registered in San Francisco, California with the EPA Safe Drinking Water Information System. Together they serve approximately 212,089 people.