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EPA WATER QUALITY DATA · LA

Louisiana Tap Water Quality by City

EPA UCMR5 PFAS monitoring data, violation history, and filter recommendations for 2 cities across Louisiana. All data sourced directly from federal EPA databases.

2
Cities tracked
2
With PFAS violations
32 ppt
Highest PFAS detected
Highest contamination in Louisiana: New Orleans — detected at 32 ppt (8× the EPA limit for PFOA/PFOS)
LOUISIANA CITIES — TAP WATER REPORTS
New OrleansHIGH RISK2 MCL VIOLATIONS
Sewerage & Water Board of New Orleans · Pop. 380K
32
ppt PFAS
Baton RougeHIGH RISK2 MCL VIOLATIONS
Baton Rouge Water Company · Pop. 230K
32
ppt PFAS
ABOUT WATER QUALITY IN LOUISIANA

Louisiana 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 Louisiana, 2 of the 2 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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