The San Joaquin Valley Unified Air Pollution Control District (District) consists of San Joaquin, Stanislaus, Merced, Madera, Kings, Tulare and Fresno Counties, and the western portion of Kern County. On June 19, 2003, the District adopted a SIP revision to demonstrate attainment of the federal 24-hour and annual average standards for inhalable particulate matter (PM10). Following a public hearing on June 26, 2003, CARB adopted the SIP revision and submitted it to U.S. EPA on August 19, 2003. On December 30, 2003, CARB submitted amendments to the 2003 PM10 Plan to U.S. EPA to provide further clarification requested by U.S. EPA staff The 2003 PM10 Plan was approved by U.S. EPA effective June 25, 2004.
The 2003 PM10 Plan includes the most recent data on air quality, emissions and modeling to assess attainment. The 2003 PM10 Plan also includes new control strategies for stationary, area and mobile sources reflecting new measures for local and State implementation. The District developed the local element along with the transportation planning agencies while CARB prepared the State element in consultation with the affected agencies.
On December 18, 2003, the District adopted amendments to the 2003 PM10 Plan in response to a U.S. EPA staff request for additional information clarifying items in the August 19, 2003, submittal. On December 19, 2003, the District transmitted the amendment to ARB. ARB then submitted the amendment via Executive Order to U.S. EPA on December 30, 2003.