Western Mojave Desert Air Quality Management Plans

This page reviewed November 20, 2014

This page contains information regarding recent and historical SIP activity for 8-hour ozone in the Western Mojave Desert and the former Southeast Desert Modified Air Quality Management nonattainment areas. Below you will find links to the 2014 Proposed Updates to the 1997 8-Hour Ozone Standard SIPS: Coachella Valley and Western Mojave Desert 8-Hour Ozone Nonattainment Areas2008 Early Progress Plan,  2007 Western Mojave Desert Nonattainment Area 8- Hour Ozone Plan, and the 2004 Southeast Desert Modified 1- Hour Ozone Plan and associated documents such as: letters submitting the plan to ARB and the U.S. Environmental Protection Agency, resolutions, transportation conformity budgets, staff reports, and public hearing notices.

Previous SIP submittals are available in hardcopy from the Air Quality and Transportation Planning Branch at (916) 322-0285 and the Antelope Valley Air Pollution Control District at http://www.avaqmd.ca.gov or (661) 723-8070.



2014 Updates to the 1997 8-Hour Ozone Standard SIPs: Coachella Valley and Western Mojave Desert 8-Hour Ozone Nonattainment Areas


The Air Resources Board conducted a public meeting on October 24, 2014 to consider minor updates to the Coachella Valley and Western Mojave Desert Federal Ozone Nonattainment Areas State Implementation Plan for the 1997 8-hour Ozone Standard.  The Board approved and ARB submitted the 2014 Updates to the U.S. Environmental Protection Agency (U.S. EPA) as a revision to the California SIP.
 
ARB Documents

Public Notice



February 2008 Ozone Early Progress Plans


February 2008 Ozone Early Progress Plans
Information regarding the Early Progress Plans for Ventura County, Antelope Valley-Western Mojave Desert, Coachella Valley, Eastern Kern County, and Imperial County.

Appendix


2007 Western Mojave Desert Ozone Attainment Plan  


At the public hearing held on June 26, 2008, ARB approved a SIP revision for attainment of the 8-hour ozone National Ambient Air Quality Standards in the  Western Mojave Desert ozone attainment area.  The Western Mojave Desert Ozone Nonattainment Area consists of the Antelope Valley portion of Los Angeles County and the southwestern portion of San Bernardino County.  The Antelope Valley Air Quality Management District (AVAQMD) has jurisdiction over the Los Angeles County portion of the Western Mojave Desert.  The AVAQMD adopted an attainment demonstration plan which projects attainment of the federal 8-hour ozone standard by 2021.
 
Below you will find links to the Air Quality Management Plans, letters submitting the plan to ARB and the U.S. Environmental Protection Agency, resolutions, staff report, and a public hearing notice.
 
ARB Documents
Public Notice
District Documents Mojave Desert
Antelope Valley

2004 Southeast Desert Modified Air Quality Maintenance Area Ozone Plan


The Southeast Desert Modified Air Quality Management Area covers the Victor Valley/Barstow region in San Bernardino County (Mojave Desert), the Coachella Valley/San Jacinto region in Riverside County (Coachella), and the Antelope Valley region in Los Angeles County (Antelope Valley).  The Mojave Desert Air Quality Management District (Mojave Desert AQMD) has jurisdiction over the Mojave Desert, the South Coast Air Quality Management District (South Coast AQMD has jurisdiction over the Coachella Valley and  the Antelope Valley Air Quality Management District (Antelope Valley AQMD)  has jurisdiction over the Antelope Valley.  The Antelope Valley AQMD contracts with the staff of the Mojave Desert AQMD for administrative services, including planning and rule development.

Each district is responsible for developing the portion of the 2004 Southeast Desert Modified Ozone State Implementation Plan (2004 SED SIP) which falls within their jurisdiction.  On May 4, 2004, ARB submitted to U.S. EPA the 2004 SED SIP for each portion of the nonattainment area along with supporting materials.  The following discussion includes information on the Mojave Desert and Coachella portion of the Southeast Desert.  The Antelope Valley portion is included in Antelope Valley nonattainment areapage.

DOCUMENTS AVAILABLE

Southeast Desert Ozone SIP submittal letter to U.S. EPA  (May 4, 2004)


Executive Order G-125-322 adopting the Southeast Desert Ozone SIP  (May 3, 2004)


2004 revisions to the Southeast Desert Modified Air Quality Maintenance Area

ARB Parallel Processing Request to U.S. EPA  (April 13, 2004)

District Document

Mojave Desert Air Quality Management District 2004 Ozone Attainment Plan -- FINAL
(link to Mojave Desert AQMD website)

ARB Comments and Supplemental Information for Mojave Desert 2004 Ozone Plan

ARB Parallel Processing Request to U.S. EPA  (April 13, 2004)

2003 South Coast Air Quality Management Plan, adopted August 1, 2003 -- see Chapter 8 and Appendix 5 for Coachella Valley attainment demonstration
(link to South Coast AQMD website)

Coachella Valley Portion of the SED Ozone Budgets, adopted November 7, 2003
(link to South Coast AQMD website)

Motor Vehicle Emissions Budgets and Documentation




California State Implementation Plan

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