Is Watertown, Connecticut tap water safe?
4 water systems report serving Watertown. Your water depends on which one serves your address. Check your bill if unsure.
A
Waterbury Water Department
Serves 107,271 people · Surface water · Full report →
No health-based violations in the last 5 years; 4 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B
Watertown Water & Sewer Authority
Serves 9,972 people · Surface water · Full report →
No health-based violations in the last 5 years; 5 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
A
Watertown Fire District
Serves 6,718 people · Groundwater · Full report →
No health-based violations in the last 5 years; 3 monitoring/reporting violations; 1 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
A
Watertown Water & Sewer - Westgate
Serves 600 people · Groundwater · Full report →
No health-based violations in the last 5 years; 4 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).