Coffin Butte Landfill Expansion

approved with conditions

The Coffin Butte landfill is a regional landfill located north of Corvallis, Oregon, near Adair Village. The project involves the proposed expansion of the landfill southward into property already owned by the landfill company, Republic Services, to extend the landfill's operational life. The expansion has faced opposition from local residents due to concerns about odors, methane leaks, fire risks, water quality, and overall environmental impact. The Benton County commissioners approved the expansion with conditions to improve monitoring and mitigate issues. The Oregon Department of Environmental Quality (DEQ) has issued a pre-enforcement notice to Republic Services for violations related to inadequate monitoring, methane emissions, and other operational concerns, requiring plans for improved monitoring and methane capture systems.