Home › Collin County

Well water testing labs in Collin 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.

2 accredited labs listed in Collin 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
Pace Analytical Services, LLC - Dallas TX	Allen	Yes	Call	(972) 727-1123
Southern Petroleum Laboratories, Inc. - Plano	Plano	Yes	Call	(972) 424-6422

Pace Analytical Services, LLC - Dallas TX

400 West Bethany Suite 190, Allen, TX 75013 · map (OpenStreetMap)

Phone: (972) 727-1123

Bacteria (total coliform / E. coli)

Source: TCEQ PWS Lab Map Table (Map ID 58) · Last checked Oct 28, 2026

Southern Petroleum Laboratories, Inc. - Plano

1825 East Plano Parkway, Suite 160, Plano, TX 75074 · map (OpenStreetMap)

Phone: (972) 424-6422

Bacteria (total coliform / E. coli)Lead & copperWater quality parameters

Source: TCEQ PWS Lab Map Table (Map ID 67) · Last checked Oct 28, 2026

Not in this county? See all counties or read how to test your well.