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EPA WATER QUALITY DATA · AR

Arkansas Tap Water Quality by City

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

1
Cities tracked
1
With PFAS violations
5.9 ppt
Highest PFAS detected
Highest contamination in Arkansas: Little Rock — detected at 5.9 ppt (1× the EPA limit for PFOA/PFOS)
ARKANSAS CITIES — TAP WATER REPORTS
Little RockMEDIUM RISK1 MCL VIOLATION
Little Rock Water Reclamation Authority · Pop. 200K
5.9
ppt PFAS
ABOUT WATER QUALITY IN ARKANSAS

Arkansas 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 Arkansas, 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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