Regional Air Quality Plans -- San Joaquin Valley Unified APCD

This page updated June 30, 2003.

Air Quality Plans
Both the federal Clean Air Act (CAA) and California Clean Air Act require local air districts to develop plans showing how they will attain the respective ambient air quality standards.

The San Joaquin Valley Unified Air Pollution Control District (District) has adopted the following plans to meet federal requirements:

PM10 Plan.   Adopted by the District and approved by ARB in June 2003, the 2003 PM10 SIP demonstrates attainment by 2010, the earliest practicable date. The Plan identifies interim emissions targets to show progress based on combined annual reductions in direct PM10 and NOx emissions of at least five percent until attainment.

This Plan also resolves a number of technical deficiencies that U.S. EPA identified in the Valley's 1997 PM10 Plan. The 2003 PM10 Plan is based on a substantial improvement in the science and a more extensive control strategy. This Plan builds on available data from extensive field studies and includes a rigorous analysis of the best relevant controls in place or planned elsewhere in the country.

2002 and 2005 Rate of Progress Plan.  In December 2001, U.S. EPA reclassified the District to Severe because of its failure to attain the ozone standard by 1999. Under the Severe classification, the District is required to prepare demonstrating attainment of the standard by November 15, 2005 and rate of progress (ROP). This plan fulfills the ROP requirement for 2002 and 2005.

2001 Amendment to the 1994 Ozone Attainment Demonstration Plan.  The 2001 SIP Amendment fulfills District obligations established by a Consent Decree between the District and Earthjustice Legal Defense Fund for failure to implement all measures in the 1994 SIP.

2000 Ozone Rate of Progress Report.  This report demonstrates that the target level of emission reductions for 1997-1999 (9 percent) and for 1990-1999 (24 percent) were met.

1997-1999 PM10 Progress Report.  This August 2000 report presents the District's overall progress towards implementing proposed actions (or commitments) established in the 1997 Serious PM10 SIP, as well as a reassessment of the attainment projections for the annual and 24-hour standards.

1997 PM10 Attainment Demonstration Plan.  This is the District's Serious PM10 SIP. It was adopted by the District in 1997, and subsequently forwarded by ARB to U.S EPA. The District withdrew the 1997 PM10 SIP from U.S. EPA in 2002.

1994 Ozone Attainment Demonstration Plan.  Adopted in 1994, the District's Serious SIP for ozone showed how the Valley would attain the 1-hour ozone standard by 1999. The SIP is a combination of local commitments and State and federal measures.

In addition, the San Joaquin Valley District has prepared the following documents to meet State planning requirements:

2000 Annual Progress Report.  Adopted in 2001, this is the District's latest annual progress report summarizing progress in meeting the schedules for adopting and implementing the control measures in the Air Quality Attainment Plan (AQAP), which set forth the District's strategy for attaining the California 1-hour ozone standard. Annual progress reports contain the proposed and actual dates for the adoption and implementation of each measure.

2000 Triennial Plan.  This Triennial Update, dated March 15, 2001, is a report on the District's progress in relation to the commitments made in State attainment plans. On a triennial basis, districts assess progress toward attainment of the State standards. Triennial progress reports contain: 1) the extent of air quality improvement achieved during the preceding three years, based upon ambient pollutant measurements, best available modeling techniques, and air quality indicators; and 2) the expected and revised emission reductions for each measure scheduled for adoption in the preceding three-year period.

Within the San Joaquin Valley are four urbanized areas that were formerly nonattainment for the federal 8-hour ambient air quality standard for carbon monoxide. These areas -- Bakersfield Metropolitan Area, Fresno Urbanized Area, Modesto Urbanized Area, and Stockton Urbanized Area -- were redesignated attainment by U.S. EPA in 1998. The ARB has submitted carbon monoxide maintenance plans for these and other California areas now meeting the federal carbon monoxide standard.

San Joaquin Valley -- Emissions Inventories