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.
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Portions of the standards on which EPA has acted and the action
date. EPA Timeline
of Approval of Standards (PDF). (Help with PDF
Files.)
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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).
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For a list of the portions still under review by EPA, see Under Review by EPA
(PDF).
