Is Portsmouth, Rhode Island tap water safe?
3 water systems report serving Portsmouth. Your water depends on which one serves your address. Check your bill if unsure.
C
Newport-City of
Serves 42,155 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 ABOVE the action level (2025).
C
Portsmouth Water & Fire District
Serves 17,090 people · Surface water · Full report →
3 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
B
Prudence Island Water District
Serves 1,500 people · Groundwater · Full report →
No health-based violations in the last 5 years; 53 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).