Is St. Helena, California tap water safe?
1 water system report serving St. Helena. Your water depends on which one serves your address. Check your bill if unsure.
C
City of St. Helena
Serves 5,386 people · Surface water · Full report →
3 health-based violations in the last 5 years; 1 monitoring/reporting violation; 1 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).