Franklin County, TN
drinking water quality
45,137 residents · 9 public water systems · 9 ZIP codes
EPA sampled 5 of 9 public water systems here, together serving about 46,974 people. Last sampled 9/25/2023.
What this means
PFAS are industrial chemicals that EPA describes as breaking down only very slowly in the environment. In April 2024 EPA set the first enforceable national limits: 4 ng/L for PFOA and PFOS, 10 ng/L for PFHxS, PFNA and GenX.
These figures are county-level and come from EPA’s sampling of public water systems. They describe the worst result found in the county, not what comes out of any particular tap — that depends on which system serves the address, and on the plumbing in the building. A private well is not covered by this programme at all.
ZIP codes in Franklin County
37306 · 37318 · 37324 · 37330 · 37345 · 37375 · 37376 · 37383 · 37398
Readings are county-level, so every ZIP here shares the figure above. Search your ZIP on the map to see it in context.