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Exceptional Events Demonstrations

These documents demonstrate to the U.S. Environmental Protection Agency that dust storms generated by high winds, rather than man-made sources, caused exceedances of the national standard for particulate matter in the air. Without this demonstration, certain areas of the state would be in violation of the federal standard and subject to stricter air quality rules and requirements designed to meet and maintain the standard in the future. The level of the federal air standard for particulate matter is protective of public health.


2008 EER Demonstration – Particulate Matter

2008 EPA Request for Additional Information (February 1, 2013)


2009 EER Demonstration – Particulate Matter

EPA Letter Partial Concurrence (March 28, 2013)


2010 – Exceptional Event Demonstration for Particulate Matter Exceedances in New Mexico, January 2010 to December 2010. Final document.


2011 – Exceptional Events Demonstration for Particulate Matter Exceedances in New Mexico, January 2011 to December 2011; Final Document by section:

Introduction and background (1Mb)
2011 Exceptional Events for January through April (12 Mb)
2011 Exceptional Events for May through December (10 Mb)
2011 Exceptional Events Caused by Smoke Impacts (14 Mb)
References and Appendices (1 Mb)


2012 – Exeptional Events Demonstration for Particulate Matter Exceedances in New Mexico, January 2012 to December 2012; Final Document by section:

Introduction and background (1.3 Mb)
2012 Exceptional Events (11 Mb)
2012 Exceptional Events Caused by Smoke Impacts (7 Mb)
References and Appendices (1.5 Mb)


new2013 – Exceptional Events Demonstration for Particulate Matter Exceedances in New Mexico, January through June 2013.


For more information, please contact Michael Baca, Environmental Analyst, NMED Air Quality Bureau at (575) 647-7983 or at michael.baca1@state.nm.us.

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