Well Water Nerd

PFOS in Louisiana well water

In Louisiana, 4% of 52 tested private well samples exceeded the EPA limit for PFOS (4 ng/L).

PFOS is a forever chemical with the same sources as PFOA. It is linked to immune suppression, thyroid disease, liver effects and cancer. Wells near airports, fire training areas, landfills and plating plants are most at risk.

Check your PFOS number

Type the value from your lab report. It is compared to the EPA limit, the same way the full interpretation does it.

Getting it fixed

Book a free in-home water test with a licensed local company, or see the treatment guide for what removes PFOS.

Sources

  • Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. PFOS counts and shares are listed on each county and town page with their sources.