Is Tonawanda (C), New York tap water safe?
2 water systems report serving Tonawanda (C). Your water depends on which one serves your address. Check your bill if unsure.
A
Erie County Water Authority (ECWA)
Serves 313,380 people · Surface water · Full report →
No health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
A
Tonawanda, Town Water Dept.
Serves 72,571 people · Surface water · Full report →
No health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).