Water Quality in San Diego, CA
102 water systems serving 1,579,138 people
City Overview
Average lead detection across San Diego water systems is 1.0 ppb (Very low). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 1145 |
| Health-based violations | 421 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in San Diego
Frequently Asked Questions
Is San Diego tap water safe to drink?
San Diego 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 Diego, California?
San Diego has 102 public water systems serving approximately 1,579,138 people. The average lead level across sampled systems is 1.0 ppb. There are 1145 total violations on record.
Does San Diego have lead in the water?
EPA monitoring data shows an average lead detection of 1.0 ppb across San Diego's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve San Diego?
102 public water systems are registered in San Diego, California with the EPA Safe Drinking Water Information System. Together they serve approximately 1,579,138 people.