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Well water testing labs in Smith 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.

3 accredited labs listed in Smith 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
Analytical Environmental Labs	Tyler	Yes	Call	(903) 509-8700
Environmental Monitoring Lab	Winona	Yes	Call	(903) 877-9222
Northeast Texas Public Health District Laboratory	Tyler	Yes	Call	(903) 535-0090

Analytical Environmental Labs

8310 South Broadway Avenue, Tyler, TX 75703 · map (OpenStreetMap)

Phone: (903) 509-8700

Bacteria (total coliform / E. coli)

Source: TCEQ PWS Lab Map Table (Map ID 5) · Last checked Oct 28, 2026

Environmental Monitoring Lab

14295 SH 155 North, Winona, TX 75792 · map (OpenStreetMap)

Phone: (903) 877-9222

Bacteria (total coliform / E. coli)

Source: TCEQ PWS Lab Map Table (Map ID 43) · Last checked Oct 28, 2026

Northeast Texas Public Health District Laboratory

815 North Broadway Avenue, Tyler, TX 75702 · map (OpenStreetMap)

Phone: (903) 535-0090

Bacteria (total coliform / E. coli)

Source: TCEQ PWS Lab Map Table (Map ID 55) · Last checked Oct 28, 2026

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