Columbia County, FL
drinking water quality

73,977 residents · 70 public water systems · 6 ZIP codes

Worst PFAS result on federal record
No PFAS above the federal limit

EPA sampled 1 of 70 public water systems here, together serving about 20,488 people. Last sampled 9/23/2024.

Health-based violations

Separately from PFAS, EPA records 46 health-based violations across 9 of the county’s water systems since 2020, the most recent in 2025. They involved trihalomethanes, E. coli, haloacetic acids, contaminant 2982.

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.

Request a test of your own supply.

This is Columbia County's worst federal result, not a reading from your tap. Leave a number and a local water specialist will test it.

No obligation. Your details go to a local water specialist to arrange the test, and to no one else.

ZIP codes in Columbia County

32024 · 32025 · 32038 · 32055 · 32061 · 32096

Readings are county-level, so every ZIP here shares the figure above. Search your ZIP on the map to see it in context.

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