Is Cottage Grove, Tennessee tap water safe?
1 water system report serving Cottage Grove. 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
Northwest Henry Co. U.D.
Serves 1,204 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 (2025).