Is Mahwah, New Jersey tap water safe?
2 water systems report serving Mahwah. 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.
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Mahwah Water Department
Serves 26,777 people · Surface water · Full report →
No health-based violations in the last 5 years; 21 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS, PFOA; Lead 90th percentile below the action level (2024).
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Ramsey Water Dept
Serves 15,207 people · Surface water · Full report →
No health-based violations in the last 5 years; 55 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS, PFOA; Lead 90th percentile below the action level (2024).