Is Saint Helena, California tap water safe?
2 water systems report serving Saint Helena. Your water depends on which one serves your address. Check your bill if unsure. This list is matched from the ZIP codes in this place, so it may include nearby systems.
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).
A
River Ranch Farm Worker Center
Serves 66 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2023).