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1997 Texas Surface Water Quality Standards

Links to information about the 1997 revision of the Texas Surface Water Quality Standards.

Standards as Rule

On April 30, 1997, the three-member commission of TNRCC (now TCEQ) adopted proposed amendments to the 1995 Texas Surface Water Quality Standards, as codified by rule in the Texas Administrative Code (TAC), Title 30, Chapter 307. Since then, the three-member commission has adopted revisions to the Standards in 2000, 2010, 2014, and 2018.

TCEQ continues to use the 1997 Standards for the maximum temperature criterion found in Appendix A for Segment 1811 (Comal River). This temperature criterion and subsequent revisions of the Standards are used in administering its federal permitting programs, depending on which provisions from each revision year EPA has approved. A webpage for each Standards revision year describes what actions EPA has taken for that revision and what items are still pending. If EPA either disapproves or is still reviewing a portion of the Standards, the language of the prior revision year remains in effect for TCEQ permitting programs created and authorized under the federal Clean Water Act.

Status: EPA Approval of the 1997 Standards

EPA completed its final action on all revisions to the 1997 Standards in March 1998. For information on more recent revisions to the Standards (those currently being used in federal permitting such as the TPDES program) see the main Water Quality Standards webpage and select the page for the most recent version. The most current revision of the Standards adopted by the commissioners is always in effect for all non-federal programs.

Text of the 1997 Standards

The 1997 Standards are available below.

For More Information

E-mail standards@tceq.texas.gov, call the Water Quality Planning Division at 512-239-6682, or mail to TCEQ, Water Quality Planning Division, MC-234, PO Box 13087, Austin, Texas 78711-3087.