Well water testing labs in Erath County, TX
Independent directory. Listings come from the TCEQ Public Water System Lab Map Table (updated 03/26/2026). These labs are accredited for public drinking-water samples; call first to confirm they accept private-well samples, which tests they run, sample bottles, drop-off hours and price.
1 accredited lab listed in Erath County. Bacteria tests usually need a sterile bottle from the lab and delivery within about 30 hours, so check the lab's sample rules before you collect.
Quick answer
| Lab | City | Bacteria | Published price | Phone |
|---|---|---|---|---|
| Texas Institute for Applied Environmental Research (TIAER) | Stephenville | Yes | Call | (254) 968-9570 |
Texas Institute for Applied Environmental Research (TIAER)
201 North Saint Felix Street, Stephenville, TX 76401 · map (OpenStreetMap)
Phone: (254) 968-9570
Bacteria (total coliform / E. coli)
Not in this county? See all counties or read how to test your well.