Is Yankton, South Dakota tap water safe?
3 water systems report serving Yankton. Your water depends on which one serves your address. Check your bill if unsure.
A
Yankton
Serves 15,411 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 (2024).
A
East Winds Court, Inc.
Serves 180 people · Surface water · 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 (2025).
B
Timberland Park
Serves 95 people · Surface water · Full report →
1 health-based violation in the last 5 years; 1 monitoring/reporting violation; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).