Lead in Texas well water
In Texas, <1% of 6,238 tested private well samples exceeded the EPA limit for lead (15 ug/L).
Lead in well water almost always comes from household plumbing and older fixtures, not the aquifer, and corrosive (low pH) well water makes it worse. There is no safe level for children; it harms brain development.
Check your lead 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 lead.
By county, from individual samples
Public monitoring samples against the EPA limit (15 ug/L); counties with at least 30 samples.
| County | Samples | Detected | Above EPA limit | Median | Highest |
|---|---|---|---|---|---|
| Cass | 37 | 41% | 3% | 0 | 22 ug/L |
| Bexar | 73 | 44% | 1% | 0 | 20 ug/L |
| Travis | 91 | 12% | 1% | 0 | 40 ug/L |
| Mason | 46 | 28% | 0% | 0 | 7.34 ug/L |
| Comal | 43 | 26% | 0% | 0 | 7 ug/L |
| Medina | 79 | 23% | 0% | 0 | 7.1 ug/L |
| Uvalde | 31 | 19% | 0% | 0 | 3 ug/L |
| Bandera | 60 | 18% | 0% | 0 | 9.9 ug/L |
| Terrell | 53 | 17% | 0% | 0 | 10 ug/L |
| Wharton | 59 | 15% | 0% | 0 | 7.9 ug/L |
| Brewster | 33 | 15% | 0% | 0 | 6.66 ug/L |
| Hemphill | 42 | 14% | 0% | 0 | 4 ug/L |
| Goliad | 30 | 13% | 0% | 0 | 2.9 ug/L |
| Terry | 30 | 13% | 0% | 0 | 1.31 ug/L |
| Carson | 57 | 12% | 0% | 0 | 1.85 ug/L |
- Austin CCD, Travis County2% of 55
- San Antonio North CCD, Bexar County0% of 31
- Hondo CCD, Medina County0% of 43
- Mason West CCD, Mason County0% of 33
- Bandera CCD, Bandera County0% of 45
- East Terrell CCD, Terrell County0% of 41
- Canadian South CCD, Hemphill County0% of 30
- Panhandle CCD, Carson County0% of 36
- Lefors CCD, Gray County0% of 38
- Seminole CCD, Gaines County0% of 32
- Johnson City CCD, Blanco County0% of 156
- Victoria West CCD, Victoria County0% of 30
- Kyle-Buda CCD, Hays County0% of 43
- Hereford West CCD, Deaf Smith County0% of 33
- San Saba CCD, San Saba County0% of 35
- Comanche CCD, Comanche County0% of 48
- Sonora Rural CCD, Sutton County0% of 113
- Rankin CCD, Upton County0% of 38
- Blanco CCD, Blanco County0% of 77
- Big Spring North CCD, Howard County0% of 32
Sources
- Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. lead counts and shares are listed on each county and town page with their sources.