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With over 120 different EPA Drinking Water regulated contaminants; there is no single test to determine if your water is safe to drink. At a minimum, consider having your well water tested annually for nitrate and coliform bacteria. For additional information on the EPA Drinking Water regulated contaminants, we recommend you call the TCEQ Public Drinking Water staff at (512) 239-4691. This line is answered 8am – 5pm Monday – Friday, except state holidays. Inform the receptionist why you are calling and you will be transferred to the appropriate TCEQ staff member.

For regulatory reasons, the San Antonio River Authority Laboratory does not provide sample collection services for public water systems. Sample collection information will be mailed along with the sample containers. Please contact the Laboratory Operations Coordinator at (210) 302-3649 for sampling information and sample containers.

The SARA Environmental Sciences Laboratory is located at 600 East Euclid, San Antonio, Texas 78212. The Laboratory sample delivery entrance is located on Atlanta Street between East Euclid and East Elmira.

Because the results of the tests you request may be used to determine the presence or magnitude of a problem, it is vital to know that the laboratory analyzing the sample(s) is capable of producing quality data. NELAP accredited laboratories set the standard for producing data that is of known and documented quality. A highly trained staff together with an established and documented quality system ensures the highest level of excellence for laboratory performance. NELAP accreditation is also a requirement for laboratories that submit data to the Texas Commission on Environmental Quality.

If the well is a new construction, your water well driller may provide water testing along with their services. In the event that they do not provide this service, either for new or older wells, you can contact the San Antonio River Authority Laboratory at (210) 302-3649 for additional information. Approved sample container(s) and sampling information can be provided upon request.

If you have not received your invoice and/or analytical report please contact the Laboratory Operations Coordinator, (210) 302-3649.

If you have a question about your analytical report please contact the Laboratory Operations Coordinator, (210) 302-3649

Yes, the SARA ESD Laboratory is NELAC accredited since February 2008. Please refer to our TCEQ NELAC FOA document for specific accredited analyte and matrix information.

Payment for analysis is due at the time that samples are submitted. Please refer to the current Fee Schedule for current pricing information. The laboratory accepts Cash or Check for payment of analytical services.

Due to the extra administrative costs associated with invoicing and billing cash/check payment is required upon sample receipt. There are always exceptions, and with management authorization may be possible depending upon the number of monthly samples submitted.

For clients who will submit samples on a monthly basis an account can be created to handle billing of analytical services. If you would like to set up an account for laboratory services please contact the, Laboratory Services Coordinator at (210) 302-3649.

Results are emailed, faxed or mailed according to the client’s preference. Samples submitted on the Drinking Water ID Sheet are mailed or faxed.

Standard sample turn around time is 10 – 14 days business days. Microbiology samples for presence/absence of Total Coliform are mailed 5 – 7 business days after sample submission.

The SARA ESD laboratory will only accept samples on the weekend when prior arrangements have been made with Laboratory Operations Coordinator at (210) 302-3649.

TCEQ Austin (512) 239-4691
Local San Antonio office (210) 490-3096