For assistance with questions regarding the restoration and protection of the Lake Michigan ecosystem, you can contact the Indiana Department of Environmental Management by phone using the information below.

IDEM General Contact Information

Northwest Regional Office

Indiana Department of Environmental Management
Northwest Regional Office
330 West US Highway 30 Suite F
Valparaiso, IN 46385

Indianapolis Central Office

Find Regional Staff and Inspectors

  • Field Staff Service Areas:
    • IDEM Field Staff Service Areas provides an interactive map and a comprehensive list of IDEM Office of Air Quality, Office of Water Quality, Office of Land Quality, and Office of Program Support field staff.

Lake Michigan Programs Contacts