Is Winthrop, Arkansas tap water safe?
3 water systems report serving Winthrop. 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
Little River Co Rda
Serves 5,268 people · Surface water · 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 (2025).
B
Winthrop Water Association
Serves 338 people · Surface water · Full report →
1 health-based violation in the last 5 years; 3 monitoring/reporting violations; No UCMR 5 PFAS results on file; Latest lead 90th percentile on file is from 2004 (older than 5 years, not graded).
A
Little River Country Club
Serves 120 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Latest lead 90th percentile on file is from 2003 (older than 5 years, not graded).