Water Lab

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        The Brazoria County Water Laboratory tests water for Total Coliform and E.Coli bacteria only.

The  Laboratory is a  nationally accredited (NELAC certified) laboratory for the detection of Total  Coliform and E.Coli bacteria in drinking water supplies. Coliform and specifically E.Coli bacteria are commonly found in sewage which could include other disease producing bacteria.



The Brazoria County Water Lab is committed to providing consistent, timely and accurate data of known and documented quality to its customers. The laboratory ensures that personnel are free from any commercial, financial and other undue pressures, which might adversely affect the quality of work.  All employees are trained annually on ethical principles and procedures surrounding the data generated from lab analyses.

Purpose: To provide testing of Public Drinking Water Supplies for monthly compliance with EPA “Coliform Rule” and also for private domestic water wells with respect to potential harmful bacteria.

The Lab does not test for minerals, metals, pH or hardness. For information on these and other tests the Ag Extension Agency can be contacted at (979)-864-1558, or Texas A&M at (979)-845-4816. 


**Free water samples are now being offered to those affected by the

"May, 2019 Flood".**


Free Well Sampling After "May, 2019 Flood" Ending 07/31/2019


The final date for free private well samples for Brazoria County residents affected by

May 2019 flood will be July 31st 2019.

The lab will continue to accept Private well samples at the regular price of

$15.00 per sample.

Please contact the Brazoria County Water Lab at 979-864-1628 with any questions.


Lab hours: Mon-Thurs 8am-4pm

          Friday 8am-2pm

409 East Orange Street, Angleton, Texas 77515



Private Well Sampling after a Flood


Brazoria County residents with private water wells that were flooded out need to wait until the water recedes completely from around their water well before attempting to run a water sample. Standing flood water still has the possibility of seeping down and contaminating a water well.

Before collecting a water sample, it is recommended that you disinfect your water well first.  

When collecting the water sample, be sure to disinfect the faucet you decide to collect the sample from (preferably an outside faucet). Remove the plastic seal from the sample bottle completely and fill the water bottle to the neck of the bottle; more water is needed for our test than the 100 ml line on the bottle.

The Water Lab accepts samples Monday through Thursday, 8am – 4pm and Fridays 8am – 2pm, but we are available to give out sample bottles and instructions Monday through Friday 8am – 5pm.

To qualify for free water samples, Water Lab Employees will verify proof of address when sample is turned in. 

  Lab sample results will be distributed ASAP by mail or email, so please write legibly.




Call for current testing schedules and other pertinent lab information. 


Water Sample Volume



Lab Manager: Cel Devereux

Email: celd@brazoria-county.com


The Brazoria County Health Department Water Lab is located at:

409 East Orange
Angleton, Tx 77515





Water Lab

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