Is North Stonington, Connecticut tap water safe?
3 water systems report serving North Stonington. Your water depends on which one serves your address. Check your bill if unsure.
A
SCWA, North Stonington Division (Nst)
Serves 1,860 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A
SCWA, Cedar Ridge Division
Serves 370 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
B
Northstone Gardens
Serves 79 people · Groundwater · Full report →
1 health-based violation in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).