Is Windsor Locks, Connecticut tap water safe?
2 water systems report serving Windsor Locks. Your water depends on which one serves your address. Check your bill if unsure.
A
The Metropolitan District (MDC Hartford)
Serves 390,887 people · Surface water · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
C
Ctwc - Northern Reg-Western System
Serves 101,313 people · Surface water · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; PFOA/PFOS average above the 4 ppt federal limit: PFOS, PFOA; Lead 90th percentile below the action level (2026).