Emterra Environmental USA has bought a significant portion of the assets of the bankrupt Michigan waste and recycling company, Richfield Management, and affiliated firms.

The unit of the Burlington, Ontario-based Emterra Group Inc. said in a news release that the assets acquired for an undisclosed amount of the Flint, Mich.-based company include recycling and trash collection contracts for about 50 mid-Michigan communities plus the former Port Huron transfer station. Emterra will continue to provide residential, commercial and municipal service to all previous service areas except Oakland County. Those include the counties of Genesee, Tuscola, St. Clair, Huron, Lapeer and Sanilac.

An Emterra affiliated company purchased the Cove Landfill in Bad Axe, Huron County and renamed it Huron Landfill.

The purchase includes waste and recycling trucks, and more than 135 employees will continue with Emterra, said CEO Emmie Leung.