Is Ada, Ohio tap water safe?
3 water systems report serving Ada. 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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Ada Village
Serves 5,334 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
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Hillcrest Estates Mobile Home Court
Serves 49 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
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Green Meadow Mhp-Hancock Co
Serves 30 people · Groundwater · Full report →
No health-based violations in the last 5 years; 3 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).