Upper Guadalupe River Authority
Water testing lab in Kerrville, Kerr County, Texas.
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.
Upper Guadalupe River Authority
125 Lehmann Drive, Suite 100, Kerrville, TX 78028 · map (OpenStreetMap)
Phone: (830) 896-5445
Bacteria (total coliform / E. coli)Water quality parameters