Federal Ozone Plans
2015 8-hour Ozone National Ambient Air Quality Standard (NAAQS):
The United States Environmental Protection Agency (US EPA) lowered the national ambient air quality standard (NAAQS) for 8-hour ozone to 0.070 ppm effective October 1, 2015.
The State recommendations for area designations were adopted by the Air Resources Board (ARB) on September 22, 2016. The ARB recommended the Sutter Buttes and south Sutter County as nonattainment areas for the 2015 NAAQS.
- ARB Staff Report: https://www.arb.ca.gov/desig/8-houroz/2016staffreport.pdf
The final designations are expected from US EPA in October, 2017. For more information on the 2015 Ozone NAAQS please visit US EPA's website.
2008 8-hour Ozone NAAQS:
South Sutter County was designated as a severe nonattainment area for the 2008 Ozone NAAQS, effective July 20, 2012.
The CARB submitted the Emission Inventory to US EPA on behalf of the California nonattainment districts.
The FRAQMD submitted the Reasonably Available Control Technology Analysis to US EPA in August 2014:
The remaining elements of the Attainment Plan and other CAA requirements are still under development.
1997 8-hour Ozone NAAQS:
South Sutter County was designated as nonattainment for the 1997 8-hour Ozone NAAQS as part of the Sacramento Federal Nonattainment Area. The 2013 Revision to the Sacramento Regional 8-hour Ozone Attainment and Reasonable Further Program Plan was approved by US EPA on January 29, 2015. The Plan showed that the region would attain the standard by 2018 as required. The Plan also included FRAQMD commitments to adopt control measures to attain the standard of 0.084 ppm ozone as expeditiously as possible. For more information please visit US EPA's website.
1-hour Ozone NAAQS
In 1991 the Sacramento region was designated a “serious” nonattainment area for the 1-hour ozone NAAQS with a November 15, 1999 attainment deadline. The Sacramento Federal Nonattainment Area (SFNA) included Sacramento and Yolo counties, Placer and El Dorado counties (except Lake Tahoe Basin portions), Solano County (eastern portion), and Sutter County (southern portion). The 1994 Sacramento Area Regional Ozone Attainment Plan was prepared and demonstrated that a comprehensive control strategy to reduce VOC and NOX emissions could achieve the ozone standard by 2005. In response, EPA granted a reclassification request from a “serious” area to a “severe” area with an extended attainment deadline of November 15, 2005, and approved the 1-hour ozone plan in 1997.
On October 18, 2012, EPA officially determined that SFNA attained the revoked 1-hour ozone NAAQS and to exclude certain 2008 data caused by wildfire exceptional events. This determination is effective as of November 19, 2012. For more information visit US EPA's website.
Federal Particulate Matter Plans
2006 24-hour PM2.5 Nation Ambient Air Quality Standard:
The Yuba City-Marysville area was designated nonattainment for the 2006 24-hour PM2.5 standard. The designations became effective Dec 14, 2009. For information on the 2006 PM2.5 designations, please click here.
The Yuba City-Marysville nonattainment area attained the 2006 24-hour PM2.5 Standard and the FRAQMD Board of Directors adopted a Maintenance Plan and Redesignation Request. The EPA approved the request and redesignated the area to attainment on November 20, 2014. For information on EPA's finding of attainment, please click here.
The FRAQMD Board of Directors adopted the Plan and directed staff to submit it to the ARB and U.S. EPA as a SIP revision.
For more information on the FRAQMD's Federal Air Quality Plans please contact our Planning Department.