Is Rosenhayn, New Jersey tap water safe?
2 water systems report serving Rosenhayn. 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.
A
Holly Tree Acres System 1
Serves 300 people · Groundwater · Full report →
No health-based violations in the last 5 years; 2 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
D
Big Oak Rehab
Serves 259 people · Groundwater · Full report →
9 health-based violations in the last 5 years; 16 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).