Is Lake Delton, Wisconsin tap water safe?
2 water systems report serving Lake Delton. Your water depends on which one serves your address. Check your bill if unsure.
A
Lake Delton Waterworks
Serves 2,914 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 (2023).
A
Lower Dells MHC
Serves 75 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).