Is Farmington, Connecticut tap water safe?
6 water systems report serving Farmington. 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).
A
New Britain Water Department
Serves 73,534 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).
D
Aquarion-Plainville Regional
Serves 18,231 people · Groundwater · Full report →
1 health-based violation in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOA, PFOS; Lead 90th percentile below the action level (2025).
D
Ctwc - Unionville System
Serves 14,693 people · Surface water · Full report →
1 health-based violation in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOA, PFOS; Lead 90th percentile below the action level (2025).
C
Avon Water Co
Serves 11,590 people · Groundwater · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOA, PFOS; Lead 90th percentile below the action level (2026).
A
Ctwc - Chimney Hill
Serves 227 people · Surface water · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).