DuPage County became the 57th member of the O’Hare Noise Compatibility Commission on November 6, 2015.

According to the ONCC Intergovernmental Agreement, DuPage County had always been a member, but active participation in ONCC became a possibility when Chairman Dan Cronin and the DuPage County Board worked with federal, state and local officials coordinating noise complaints as a result of new O’Hare flight paths.


ONCC Chair and Mount Prospect Mayor Arlene A. Juracek welcomes new members DuPage County Director of Transportation Don Puchalski (left) and DuPage County Alternate Serge Ruffolo to the noise commission.

The new runway configuration in 2013 coincided with a directive from the National Transportation Safety Board that airports stop using converging runways.  The shift in flight patterns created new corridors over several areas of DuPage County. 

As a result, DuPage County convened an Ad Hoc Committee on Airport Noise in 2014 to facilitate discussion with local stakeholders on the issue. DuPage County Transportation Chairman Don Puchalski is the new ONCC representative. 

According to the U.S. Census Bureau, DuPage County has a population of approximately 916,924 residents and is one of the collar counties of the Chicago-Naperville-Elgin, IL-IN-WI Metropolitan Statistical Area.

The county has a total area of 336 square miles and represents several ONCC members, which include Bartlett, Bensenville, Bloomingdale, Downers Grove, Hanover Park, Itasca, Schaumburg, and Wood Dale.

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