After more than 30 years of service division chief Mark Ziemnik is retiring.
The Naperville Fire Department hired Ziemnik in July of 1980.
He was promoted to Lieutenant in 1992, then Captain in 1998, and Division Chief in 2011.
Over the years, Ziemnik has taught the Citizens Fire Academy and in 2001 was the Exchange Club’s Firefighter of the Year.
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