San Antonio: Latest Ozone Planning Activities

San Antonio Attains 1997 Eight-Hour Ozone Standard

On April 2, 2008, the EPA issued final action to designate 13 Early Action Compact areas (including San Antonio) attainment for the eight-hour ozone standard, as they 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 EPA revoked the one-hour ozone standard for each of the 13 EAC areas one year after the effective date of their attainment designation.

Designating the San Antonio area 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 information is available from the EPA about its final action.