The Operations Department is dedicated to providing a safe, clean, attractive environment for​ all who enter the District 155 facilities by utilizing resources efficiently, embracing quality workmanship, performing preventative maintenance, and planning for the revitalization of our facilities.


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Contact Us

Troy Stinger
Director of Operations
Phone: (815) 455-8500

Laura Krelle
Operations Coordinator
Phone: (815) 455-8500 ext. 1022

  • Maintains records of maintenance operations and purchases
  • Schedules contract work for building and sites

Keith Schabacker
Grounds Supervisor
Phone: (815) 455-8500 ext. 1035

Cary-Grove High School
Cuauhtemoc Mendez
Building Operations Supervisor 

Crystal Lake Central High School
Larry Temple
Building Operations Supervisor 

Crystal Lake South High School
Jim Podgorski
Building Operations Supervisor 

Prairie Ridge High School​
John Detlaf
Building Operations Supervisor