Well water testing labs in Hidalgo 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 Hidalgo 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 |
|---|---|---|---|---|
| City of McAllen Central Laboratory | McAllen | Yes | Call | 956-681-1720 |
City of McAllen Central Laboratory
2501 West Expressway 83, McAllen, TX 78503 · map (OpenStreetMap)
Phone: 956-681-1720
Bacteria (total coliform / E. coli)
Not in this county? See all counties or read how to test your well.