Jump to main content or area navigation.

Contact EPA Pacific Southwest Air Program

Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Air Actions, California

Feather River Air Actions

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Adobe Reader.

On this page:

November 2014: Approval of Redesignation Request and Maintenance Plan for PM2.5 in Yuba City-Marysville Area

November 20, 2014: EPA approves California's request to redesignate the Yuba City-Marysville area to attainment for the 2006 24-hour PM2.5 NAAQS and their plan for maintaining that standard for at least ten years.

Contact Information

John Ungvarsky (ungvarsky.john@epa.gov)

December 2012: Final Rule Determining Attainment for the 2006 24-Hour PM2.5 National Ambient Air Quality Standard in the Yuba City-Marysville Nonattainment Area

December 18, 2012: Regional Administrator Jared Blumenfeld signed a final rule determining that the Yuba City-Marysville nonattainment area has attained and continues to attain the 2006 24-hour PM 2.5 National Ambient Air Quality Standard.

Top of page

Jump to main content.