Franklin County, TX
drinking water quality
10,912 residents · 4 public water systems · 3 ZIP codes
EPA sampled 1 of 4 public water systems here, together serving about 13,698 people. EPA detected PFPeA at 4.5 ng/L. EPA has not set a drinking water limit for PFPeA, so there is no figure to compare it against. Last sampled 9/17/2025.
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
75457 · 75480 · 75487
Readings are county-level, so every ZIP here shares the figure above. Search your ZIP on the map to see it in context.