Modern LF Landfill - York, Pennsylvania | Solid Waste Management Facility

Modern LF is a landfill facility located at 4400 Mount Pisgah Road in York, Pennsylvania, United States. Owned and operated by Republic Services, Inc., the site has been operational since 1949 and is scheduled to close in 2025. As a major solid waste management facility in York County, it plays a key role in regional waste disposal. The facility operates under the regulatory framework of the US EPA, including RCRA Subtitle D for municipal solid waste and Clean Air Act landfill gas rules. As a landfill, it manages waste through controlled disposal, with systems for leachate management and gas collection to mitigate environmental impacts. The long operational history indicates significant waste volume and community service. Modern LF's closure in 2025 marks a transition for York's waste management landscape. Post-closure, the site will require ongoing monitoring for landfill gas and leachate. The facility's location near residential areas underscores the importance of proper management to minimize community and environmental risks.

Landfills in Pennsylvania, like Modern LF, face environmental challenges including methane leakage from decomposing waste and leachate management to protect groundwater. Proximity to the Susquehanna River watershed heightens the need for robust containment systems. Community proximity also requires careful traffic and odor management. The facility's closure plan will involve capping and long-term monitoring to mitigate these risks.