Is Killingworth, Connecticut tap water safe?
2 water systems report serving Killingworth. Your water depends on which one serves your address. Check your bill if unsure.
B
Ctwc - Jensens Beechwood System
Serves 750 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 (2025).
B
M&m Realty Holdings LLC
Serves 87 people · Groundwater · Full report →
No health-based violations in the last 5 years; 22 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).