Uranium in Louisiana well water

In Louisiana, 0% of 527 tested private well samples exceeded the EPA limit for uranium (30 ug/L).

Uranium in well water comes from granite bedrock. Its main health effect is chemical toxicity to the kidneys rather than radiation. It is common in the same areas where radon and arsenic occur.

Check your uranium 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 uranium.

By county, from individual samples

Public monitoring samples against the EPA limit (30 ug/L); counties with at least 30 samples.

County	Samples	Detected	Above EPA limit	Median	Highest
Rapides	49	90%	0%	0.06	7.1 ug/L
Lafayette	108	72%	0%	0.043	3.17 ug/L
Bienville	34	38%	0%	0	0.6 ug/L

Sources

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