Coffin Butte LF Landfill - Corvallis, Oregon | Republic Services Solid Waste Management

Coffin Butte LF is a landfill facility located at 28972 Coffin Butte Road in Corvallis, Benton County, Oregon, United States. Owned and operated by Republic Services, Inc., the landfill has been operational since 1978 and is projected to continue operations until 2038. As a major solid waste management facility in the region, it serves the waste disposal needs of the surrounding communities. The landfill operates under the regulatory framework of the U.S. Environmental Protection Agency (EPA) and the Oregon Department of Environmental Quality. It is subject to RCRA Subtitle D requirements for municipal solid waste landfills, including liner systems, leachate collection, and groundwater monitoring. The facility also complies with Clean Air Act regulations for landfill gas management, which involve gas collection and control systems to reduce methane emissions. Coffin Butte LF plays a significant role in the solid waste management infrastructure of Benton County and the broader Willamette Valley region. Its long operational history and planned closure date indicate a well-established facility that has been integral to local waste disposal. The landfill's gas management systems contribute to reducing greenhouse gas emissions, aligning with state and federal environmental goals.

The landfill is situated in the Willamette Valley, a region with a mild climate and high groundwater tables, which necessitates robust leachate management to prevent groundwater contamination. Proximity to agricultural areas and residential communities requires careful control of odors, traffic, and potential methane migration. Landfill gas collection systems are critical for mitigating methane emissions, a potent greenhouse gas, and may be used for energy generation.