EPA Review of the 2000 Water Quality Standards

As the Environmental Protection Agency (EPA) completes its review of portions of the 2000 Texas Surface Water Quality Standards, it sends letters documenting the portions it approves, portions it disapproves, and portions on which no action is taken. These final action decisions are forwarded to the TCEQ. Those portions that are approved become effective on the EPA approval dates, when the TCEQ also begins using them in federal permitting programs.

• Portions of the standards on which EPA has acted and the action date. EPA Timeline of Approval of Standards (PDF). (Help with PDF Files.)

• The letters documenting the EPAs decisions regarding the standards were sent on June 30, 2004 (PDF), September 10, 2004 (PDF), December 21, 2004 (PDF), March 25, 2005 (PDF), May 6, 2005 (PDF),October 14, 2005 (PDF), June 12, 2006 (PDF), August 31, 2006 (PDF), September 19, 2006 (PDF), April 9, 2008 (PDF), August 6, 2008 (PDF).

• Provisions of the 2000 Standards - Not Approved by EPA (PDF).