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EPA WATER QUALITY DATA · RI

Rhode Island Tap Water Quality by City

EPA UCMR5 PFAS monitoring data, violation history, and filter recommendations for 1 cities across Rhode Island. All data sourced directly from federal EPA databases.

1
Cities tracked
1
With PFAS violations
37 ppt
Highest PFAS detected
Highest contamination in Rhode Island: Providence — detected at 37 ppt (9× the EPA limit for PFOA/PFOS)
RHODE ISLAND CITIES — TAP WATER REPORTS
ProvidenceMEDIUM RISK1 MCL VIOLATION
Providence Water Supply Board · Pop. 180K
37
ppt PFAS
ABOUT WATER QUALITY IN RHODE ISLAND

Rhode Island water quality varies significantly by city and water system. The EPA's UCMR5 monitoring program tested all systems serving 3,300+ people for 29 PFAS compounds between 2023 and 2025. In Rhode Island, 1 of the 1 tracked cities returned results with active MCL violations — meaning detected PFAS levels exceed the EPA's legally enforceable maximum.

Click any city above for a full breakdown of detected compounds, violation history, water hardness data, and certified filter recommendations matched to the actual contaminant profile of that system.

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