Water Quality in Half Moon Bay, CA
14 water systems serving 20,702 people
City Overview
Average lead detection across Half Moon Bay water systems is 0.8 ppb (Very low). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 89 |
| Health-based violations | 16 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in Half Moon Bay
Frequently Asked Questions
Is Half Moon Bay tap water safe to drink?
Half Moon Bay 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 Half Moon Bay, California?
Half Moon Bay has 14 public water systems serving approximately 20,702 people. The average lead level across sampled systems is 0.8 ppb. There are 89 total violations on record.
Does Half Moon Bay have lead in the water?
EPA monitoring data shows an average lead detection of 0.8 ppb across Half Moon Bay's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve Half Moon Bay?
14 public water systems are registered in Half Moon Bay, California with the EPA Safe Drinking Water Information System. Together they serve approximately 20,702 people.