Uranium in Texas well water
In Texas, 2% of 4,588 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 |
|---|---|---|---|---|---|
| Terry | 32 | 100% | 13% | 12.8 | 42.9 ug/L |
| Webb | 52 | 15% | 8% | 0 | 61 ug/L |
| Midland | 32 | 100% | 6% | 16.1 | 36.7 ug/L |
| Dallam | 40 | 100% | 5% | 5.95 | 32.5 ug/L |
| Pecos | 51 | 98% | 2% | 3.5 | 39.8 ug/L |
| Harris | 322 | 97% | 2% | 1.47 | 44.5 ug/L |
| Tarrant | 69 | 62% | 1% | 2 | 35 ug/L |
| Ochiltree | 30 | 100% | 0% | 8.29 | 11.5 ug/L |
| Sherman | 47 | 100% | 0% | 10.2 | 15.1 ug/L |
| Moore | 32 | 100% | 0% | 6.88 | 12.4 ug/L |
| Yoakum | 33 | 100% | 0% | 6.21 | 16.1 ug/L |
| Sutton | 109 | 98% | 0% | 1.7 | 2.99 ug/L |
| Lipscomb | 44 | 98% | 0% | 3.83 | 9.38 ug/L |
| Goliad | 33 | 97% | 0% | 2.43 | 5.9 ug/L |
| Duval | 41 | 95% | 0% | 5.56 | 25.7 ug/L |
- Dalhart CCD, Dallam County6% of 32
- Fort Stockton CCD, Pecos County3% of 34
- Houston CCD, Harris County2% of 257
- Northwest Harris CCD, Harris County2% of 59
- Fort Worth CCD, Tarrant County0% of 31
- Sonora Rural CCD, Sutton County0% of 96
- Austin CCD, Travis County0% of 104
- San Antonio Central CCD, Bexar County0% of 80
- San Antonio Northwest CCD, Bexar County0% of 76
- Southeast Montgomery CCD, Montgomery County0% of 31
- San Antonio North CCD, Bexar County0% of 185
- Kyle-Buda CCD, Hays County0% of 70
- New Braunfels CCD, Comal County0% of 81
- San Marcos CCD, Hays County0% of 92
- Hondo CCD, Medina County0% of 51
- San Antonio South CCD, Bexar County0% of 50
- Uvalde CCD, Uvalde County0% of 60
- Johnson City CCD, Blanco County0% of 95
- Canyon Lake CCD, Comal County0% of 33
- Liberty-Dayton CCD, Liberty County0% of 33
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.