“The new Northwest Regional Office address is in a central location in the three-county territory we cover, close to Interstate 65 and State Road 49, which allows for easy access,” said Thomas Easterly, IDEM commissioner. “We have made a smooth transition to our new Valparaiso location and will continue working closely with area residents, groups, and businesses to address Northwest Indiana’s air, land and water issues.”
The new telephone numbers for the IDEM Northwest Regional Office are (888) 209-8892 (toll free) and (219) 464-0233 (direct). The new mailing address is 330 West US Highway 30, Suite F, Valparaiso, IN 46385. The office used to be in Merrillville.
IDEM’s Northwest Regional Office is one of four regional offices that work, in addition to IDEM’s main Indianapolis Office, to provide businesses and citizens with compliance and technical assistance on federal and state environmental regulations and issues. More information about IDEM and its regional offices is available on the IDEM website at