Environmental Monitoring Lab
Water testing lab in Winona, Smith 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.
Environmental Monitoring Lab
14295 SH 155 North, Winona, TX 75792 · map (OpenStreetMap)
Phone: (903) 877-9222
Bacteria (total coliform / E. coli)