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San Antonio: Latest Ozone Planning Activities

Latest events and activities related to the San Antonio area’s compliance with the National Ambient Air Quality Standard for ground-level ozone.

San Antonio Attains 1997 Eight-Hour Ozone Standard

On April 2, 2008, the EPA issued final action to designate San Antonio, along with 12 other Early Action Compact areas, as attainment for the eight-hour ozone standard, as the area met all milestones of the EAC program and demonstrated attainment of the 1997 eight-hour ozone standard by December 31, 2007. The effective date of this final action is April 15, 2008. Additionally, the one-hour ozone standard was revoked for the San Antonio area effective April 15, 2009.

Designating the San Antonio area as attainment for the 1997 eight-hour ozone standard means that there are no further state implementation plan requirements for the existing standard as long as the area continues to monitor attainment for the standard.  Additional informationExit the TCEQ is available from the EPA about its final action.