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Notice of Availability of the Demonstration of the Occurrence of Two Exceptional Events for January and February 2014

Notice of Availability of the Demonstration of the Occurrence of Two Exceptional Events for January and February 2014

The Imperial County Air Pollution Control District (Air District) has prepared two Draft Exceptional Event (EE) Demonstrations which support the requested exclusion of the measured concentrations at the Brawley and Westmorland monitors on January 31 and February 28 of 2014 (see below).

January 31, 2014
Brawley 24 hr concentration from the Federal Equivalent Method BAM monitor of 198.7 ug/m3

February 28, 2014
Westmorland 24 hr concentration from the Federal Reference Method monitor of 294 ug/m3

The public and all interested parties are encouraged to review and comment on the Draft EE's for January 31st and February 28th of 2014 which provide the supporting evidence that on January 31st and February 28th of 2014 the Brawley and Westmorland monitors were impacted by elevated levels of particulate matter of an aerodynamic size less than 10 microns (PM10) caused by winds which followed two weather systems that impacted Riverside, Imperial and San Diego counties. The Draft EE Demonstrations provide the scientific justification for the requested exclusions. The Air District is soliciting and accepting comments for 30 days commencing the date of the publication of this notice. The final closing date for submitting comments is January 23, 2017 by close of business.

The Draft EE's for January 31 and February 28 of 2014 are available for download at the Air District website at www.co.imperial.ca.us, under "Air Pollution". To view the Draft EE demonstrations, please visit the Air Pollution Control District office at 150 S. 9th Street, El Centro. Should you have any questions or concerns please feel free to call our office between 8am and 5pm at (442) 265-1800 and ask for Monica N. Soucier.

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