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PST Technical Standards and Assistance

Information on the technical standards and assistance TCEQ provides regarding the application and interpretation of PST rules.

State rules for petroleum storage tanks ( Title 30 TAC Chapter 334) set technical standards that regulated PSTs must meet. The TCEQ provides technical assistance regarding the application and interpretation of petroleum storage tank (PST) rules and reviews requests for variances from technical standard requirements.

If you need help determining whether your regulated storage tank actually meets these standards, contact a storage tank consultant or a UST contractor registered with the TCEQ.

If you need help interpreting these rules, contact the Technical staff by e-mail at or by telephone at 512-239-1436.

See the following

Required use of SW-846 Method 5035

New Information

Beginning January 1, 2016, the TCEQ Remediation Division will require the use of United States Environmental Protection Agency (USEPA) SW846 Method 5035A, Purge-and-Trap and Extraction for Volatile Organics in Soil and Waste Samples, as amended, for the collection and preparation of solid samples for volatile organic compound (VOC) analysis using purge-and-trap technology.

The TCEQ Remediation Division guidance on Method 5035 has been updated and is available.