Water Quality in Hollister, CA
104 water systems serving 68,723 people
City Overview
Average lead detection across Hollister water systems is 1.4 ppb (Low). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 1959 |
| Health-based violations | 780 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in Hollister
Frequently Asked Questions
Is Hollister tap water safe to drink?
Hollister 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 Hollister, California?
Hollister has 104 public water systems serving approximately 68,723 people. The average lead level across sampled systems is 1.4 ppb. There are 1959 total violations on record.
Does Hollister have lead in the water?
EPA monitoring data shows an average lead detection of 1.4 ppb across Hollister's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve Hollister?
104 public water systems are registered in Hollister, California with the EPA Safe Drinking Water Information System. Together they serve approximately 68,723 people.