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Pacific Southwest, Region 9

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

Air Actions, California

Air Actions in Imperial County

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On This Page:

  • September 24, 2014: Direct final notice for the 2002 ozone emissions inventories, Imperial County
  • March 28, 2013: Revision to California State Implementation Plan, Imperial County APCD Regulation 8
  • March 6, 2013: Clarification of Nonattainment Area Boundary: Imperial Valley Planning Area for PM10
  • January 7, 2013: Interim Final Determination to Stay Sanctions, Imperial County Air Pollution Control District
  • January 7, 2013: Revision to the California SIP, Imperial County Air Pollution Control District - Proposed
  • August 6, 2012: Imperial County Federal Highway Funding Restrictions
  • July 27,2012: Settlement between EPA, California State Parks and Imperial County: Imperial's Fugitive Dust Regulations
  • Historical Actions
    • November 17, 2009: Imperial County Final Finding of Attainment for the 1997 8-hour ozone standard
    • September 15, 2009: Imperial County Proposed Finding of Attainment for the 1997 8-hour ozone standard
    • February 13, 2008: Finding of Failure to Attain the 8-hour Ozone Standard
    • December 4, 2007: Imperial Valley PM-10 Failure to Attain Final Action
    • August 3, 2004: Final Rule to Reclassify the Imperial Valley from Moderate to "Serious" PM-10 Nonattainment area. and Proposed Rule that would Find that the Imperial County Failed to Attain the National PM-10 Standard for Serious Nonattainment Areas by December 31, 2001
    • August 6, 2001: Imperial County Proposal on Finding of Attainment
    • October 9, 2001: Imperial County Finding of Attainment

Direct final notice for the 2002 ozone emissions inventories, Imperial County

September 24, 2014: EPA issued a direct final Federal Register notice for the 2002 ozone precursor emissions inventories for the Imperial County nonattainment area.

Contact Information
Jerry Wamsley, 415-947-4111


Revision to California State Implementation Plan, Imperial County APCD Regulation 8

March 28, 2013: EPA approved improvements to Imperial County Air Pollution Control District's (ICAPCD) rules that regulate emissions of inhalable particulate matter. This action terminates highway sanctions that went into effect in the County on August 9, 2012 and were stayed on January 7, 2013. Today's action is consistent with EPA's commitments made in a Settlement Agreement reached with ICAPCD and California Department of Parks and Recreation (State Parks) on July 27, 2012.


Clarification of Nonattainment Area Boundary: Imperial Valley Planning Area for PM10

March 6, 2013: EPA issued a direct final Federal Register notice clarifying the description of the Imperial Valley planning area, an area designated as nonattainment for the national ambient air quality standard for PM10.


Interim Final Determination to Stay Sanctions, Imperial County Air Pollution Control District

January 7, 2013: EPA made an interim final determination to stay imposition of sanctions based on a proposed approval of revisions to the Imperial County Air Pollution Control District (ICAPCD) portion of the California State Implementation Plan (SIP).


Proposed Rule: Revision to the California State Implementation Plan, Imperial County Air Pollution Control District

January 7, 2013: EPA proposed to approve revisions to the Imperial County Air Pollution Control District (ICAPCD) portion of the California Implementation Plan (SIP).


Settlement between EPA, California State Parks and Imperial County Regarding Imperial's Fugitive Dust Regulations

July 27, 2012: EPA, Imperial County Air Pollution Control District and California Parks Department announced a settlement to enhance Imperial's regulations for inhalable particulate matter (PM-10). The settlement agreement will be published in the Federal Register in about two weeks. There will be a 30-day public comment period on the agreement upon publication in the Federal Register.

Contact Information
Andy Steckel (steckel.andrew@epa.gov)


Imperial County Federal Highway Funding Restrictions

August 6, 2012: Federal Highway Administration (FHWA) Division Administrator sent a letter to the Director of the California Department of Transportation (Caltrans) to provide notice that highway sanctions will be imposed on August 9, 2012 in Imperial County for highway construction projects whose funds have not yet been awarded to the County by FHWA by that date. Projects that have already received approval and had funds awarded before August 9, 2012 may proceed, if no other FHWA action is required to proceed. We do not expect any job loss or project delays as a result of this action.

Contact Information
Wienke Tax (tax.wienke@epa.gov)
Karina O'Connor (OConnor.karina@epa.gov)

Historical Actions

Imperial County Final Finding of Attainment for the 1997 8-hour Ozone Standard

November 11, 2009: EPA has signed a final rule determining that the Imperial Valley has attained the 1997 8-hour ozone standard. The finding is based on certified air quality monitoring data from 2006-2008.

Contact Information
Wienke Tax (tax.wienke@epa.gov)
Office of Air Planning
EPA Region 9
(415) 947-4192

Imperial County Proposed Finding of Attainment for the 1997 8-hour Ozone Standard

September 15, 2009: EPA has signed a propose rule determining that the Imperial Valley has attained the 1997 8-hour ozone standard. The finding is based on certified air quality monitoring data from 2006-2008.

Imperial County Finding of Failure to Attain the 8-hour Ozone Standard

February 13, 2008: EPA signed a final rule finding that the Imperial County failed to attain the national ambient air quality standard for the 8-hour standard by the statutory attainment date, June 15, 2007. The monitored air quality data for 2004-2006 shows the area is not attaining the standard. The Imperial County is reclassified as a moderate 8-hour ozone nonattainment area with a maximum attainment date of June 15, 2010. The State will need to submit a State Implementation Plan revision that meets the requirements for moderate areas no later than December 31, 2008.

Contact Information

Adrienne Priselac (priselac.adrienne@epa.gov)
Office of Air Planning
EPA Region 9
(415) 972-3285


Imperial Valley PM-10 Failure to Attain Final Action

December 4, 2007: EPA has signed a final rule determining that the Imperial Valley failed to attain the national PM-10 standard for serious nonattainment areas by December 31, 2001. We are finalizing this action based on a 2004 proposed rule that used air monitoring data from 1999-2001. The final rule requires the State to submit a plan to EPA within one year of the rule's publication.


Final Rule to Reclassify the Imperial Valley from Moderate to "Serious" PM-10 Nonattainment area. and Proposed Rule that would Find that the Imperial County Failed to Attain the National PM-10 Standard for Serious Nonattainment Areas by December 31, 2001

August 3, 2004: EPA signed two rules to help bring cleaner air to California's Imperial Valley. First, prompted by a recent Ninth Circuit Court Order, EPA signed a final rule to reclassify the Imperial Valley from a moderate to a "serious" PM-10 nonattainment area. Second, EPA has signed a proposed rule that would find that the Imperial County failed to attain the national PM-10 standard for serious nonattainment areas by December 31, 2001.


Imperial County Finding of Attainment

October 9, 2001: EPA signed a final notice finding that the Imperial County attained the PM-10 standard by the statutory attainment date, December 31, 1994. This finding is based on a technical analysis provided to EPA by the State of California, which EPA has found adequate. EPA received adverse comments on the finding of attainment from the Sierra Club. All of the other commenters (including the Imperial County Air District, the agricultural community and mining industry) supported EPA's finding of attainment. EPA's response to comments is provided in the final Federal Register notice.

This final action allows Imperial County to retain its classification as a moderate PM-10 nonattainment area.

Contact Information

Adrienne Priselac (priselac.adrienne@epa.gov)
Office of Air Planning
EPA Region 9
(415) 972-3285

Imperial County Proposal on Finding of Attainment

August 6, 2001: EPA signed a proposal that finds that Imperial County, California, attained the standard for PM-10 -- particulate matter, or dust, 10 microns in size or smaller -- by the statutory deadline of December 31, 1994. This proposed finding is based on a technical analysis provided to EPA by the State of California, which EPA has found adequate.

 

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