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Public Drinking Water Laboratory Certification

Gives information and procedures about certifying labs that supply data to public water systems.

Environmental Laboratories supplying data for compliance with the Safe Drinking Water Act must be certified by the Texas Commission on Environmental Quality.

Application, Fields of Certification,
and Certified Labs

Application (PDF) (Help with PDF)


Fields of Certification (PDF) (Updated May 1, 2006)


Certified Laboratories (PDF)


For more information or paper versions of these documents, please call:

Max Phillips at 512/239-3518 or Po Chang at 512/239-4876, or e-mail us at labprgms@tceq.texas.gov.


Our Mailing Address

Public Drinking Water Laboratory Certification Program
Texas Commission on Environmental Quality
P.O. Box 13087, MC-176
Austin, TX 78711-3087


Rules (Including Fees) and Certification Standards





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