Asotin County Regional Landfill - Clarkston, Washington Landfill

Asotin County Regional Landfill is a municipal solid waste landfill located at 2901 6th Avenue in Clarkston, Washington, United States. Operational since 1975, it serves Asotin County and is owned by the county government. The facility is classified as a landfill within the solid waste management sector, handling waste from the local community and surrounding areas. The landfill operates under the regulatory framework of the US EPA, including RCRA Subtitle D for municipal solid waste landfills and Clean Air Act requirements for landfill gas management. As a regional facility, it likely employs standard landfill practices such as waste compaction, daily cover, and leachate collection. The projected closure year of 2064 indicates a long-term operational plan, with ongoing monitoring and maintenance obligations post-closure. Asotin County Regional Landfill plays a critical role in managing solid waste for the region, supporting public health and environmental protection. Its location in southeastern Washington near the Snake River requires careful management of groundwater and surface water impacts. The facility's long operational history and future closure planning reflect its importance to the community's waste infrastructure.

The landfill is situated in Clarkston, Washington, near the confluence of the Snake and Clearwater Rivers. This proximity to water bodies necessitates robust leachate management and groundwater monitoring to prevent contamination. The region's semi-arid climate with seasonal precipitation influences leachate generation rates. Landfill gas, primarily methane, is a key environmental concern, and the facility likely employs gas collection systems to mitigate greenhouse gas emissions and comply with Clean Air Act regulations. Community proximity and truck traffic are additional considerations for local environmental impact.