Water Quality in Foster City, CA
5 water systems serving 37,005 people
City Overview
Average lead detection across Foster City water systems is 5.4 ppb (Moderate). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 77 |
| Health-based violations | 22 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in Foster City
Frequently Asked Questions
Is Foster City tap water safe to drink?
Foster City 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 Foster City, California?
Foster City has 5 public water systems serving approximately 37,005 people. The average lead level across sampled systems is 5.4 ppb. There are 77 total violations on record.
Does Foster City have lead in the water?
EPA monitoring data shows an average lead detection of 5.4 ppb across Foster City's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve Foster City?
5 public water systems are registered in Foster City, California with the EPA Safe Drinking Water Information System. Together they serve approximately 37,005 people.