Emergency Management

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A.J. Mumm, CEM®, Director

In September 2004, the Polk County Emergency Management Commission appointed A.J. Mumm to lead the countywide agency responsible for preparing for, responding to, and recovering from natural and man-made disasters.  He originally began his service with the Polk County Emergency Management Agency in January 1999 as a disaster mitigation planner and went on to join the State of Iowa’s Homeland Security and Emergency Management Division in July 2001 where he was eventually promoted to the position of Chief Planner. 

Mumm, a graduate of Drake University (BA – Biology and Geography) and Iowa State University (Master of Community and Regional Planning), is also an alumnus of the 2005 Greater Des Moines Leadership Institute’s Transformational Leadership Program.  He has taught as an Adjunct Instructor at Drake University, Des Moines Area Community College, and Texas A&M University’s Engineering Extension Service (TEEX).  

He has been published and regularly speaks on the topics of hazard analysis and risk assessment, critical asset protection, and comprehensive emergency planning.  A.J. is a recipient of the 2008 Iowa State Association of Counties’ Individual Excellence Awards for Polk County’s response to the severe weather and flooding of 2008.  Mumm is a Past-President of the Iowa Emergency Management Association and serves as Past-Chair of the Board of Directors for the Safeguard Iowa Partnership; a public-private partnership focused on disaster preparedness, response, and recovery. He currently serves on the Iowa State Association of Counties Board of Directors.

Mumm is a Certified Emergency Manager through the International Association of Emergency Managers.  A native of Westside, Iowa, A.J. and his wife Sabetha live in Ankeny, Iowa with their two children and enjoy sports, boating, outdoor recreation, and travel.

Jon Davis, Deputy Director

Jon joined the Polk County Emergency Management Agency November 23, 2009. Jon has an extensive background in emergency services including emergency management, search and rescue, law enforcement, firefighting, emergency medical services and emergency communications.

As part of his extensive background in communications, Jon is a General Class Amateur Radio Operator and is a member of the Polk County Amateur Radio Emergency Service (ARES).

Jon remains active in emergency response as a member of the FEMA Urban Search and Rescue Program with responses to Hurricane Katrina, Dean, Dolly, Gustav and Ike. He is also a member of the FEMA Urban Search and Rescue Program Incident Support Team and in that capacity responded to Boulder County, Colorado for flooding. In addition to field work, he also enjoys training emergency responders nationwide.  

Franny Medeiros, Administrative Assistant

Franny joined the Polk County Emergency Management Agency May 19th, 2014. Franny, a graduate of Mercy College of Health Science obtained a certificate in Medical Assisting.

She had been previously employed at the Polk County Health Department as a Medical Assistant. Franny has helped respond to multiple pandemics, including H1N1 where she was instrumental to the response. Franny is also a Basic Life Support (BLS) instructor.

Cameron Stufflebeam, Emergency Management Program Assistant

Cameron joined the Polk County Emergency Management Agency March 21, 2016.  Cameron has an extensive background in emergency management, hazardous materials response, emergency medical services and emergency communications.

As an Iowa Air National Guard member, he is part of the National Guard’s FEMA Region VII Mobile Emergency Operations Center team.  Cameron has served in the Iowa National Guard as an Emergency Manager and also as a medic.  As a member of the Civil Support Team, Cameron received extensive hazardous materials and weapons of mass destruction training.

Cameron has served as Chair and Co-Chair on national committees within the Air National Guard Emergency Management.  He has also been a lead instructor, evaluator, and planner for exercises and training events for the Air National Guard.

Tracey Bearden, 911 Coordinator

Tracey joined the Polk County Emergency Management Agency on June 13, 2016.  She earned a Bachelor of Science from Drake University where she graduated Suma Cum Laude, Phi Beta Kappa, and with university honors. Tracey holds a Master of Public Administration (policy concentration) from Drake University, and a Doctor of Jurisprudence from the University of Houston Law Center.  She also attended the A.A. White Dispute Resolution Center to become a trained mediator.  

Tracey previously worked as a federal agent with the United States Border Patrol in Laredo, Texas.  While serving as a Border Patrol Agent, she had the opportunity to serve as a line agent, the Interim Peer Support Coordinator, and worked directly for the Chief Patrol Agent (CPA) of Laredo Sector on special projects, policy, and program review. 

Contact Us

Polk County Emergency Management
1907 Carpenter Avenue
Des Moines, IA 50314
(515) 286-2107

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