Is Waupun, Wisconsin tap water safe?
3 water systems report serving Waupun. Your water depends on which one serves your address. Check your bill if unsure.
A
Waupun Utilities
Serves 8,056 people · Groundwater · 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 (2023).
B
Waupun Correctional Inst
Serves 3,706 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 2 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
D
Marshview Terrace
Serves 40 people · Groundwater · Full report →
7 health-based violations in the last 5 years; 4 monitoring/reporting violations; No UCMR 5 PFAS results on file; Latest lead 90th percentile on file is from 2021 (older than 5 years, not graded).