Pine Tree Acres LF Inc. - Landfill in Lenox, Michigan, USA

Pine Tree Acres LF Inc. is a municipal solid waste landfill located in Lenox, Macomb County, Michigan, United States. Owned and operated by WM (Waste Management), one of the largest waste management companies in North America, the facility has been in operation since 1987 and is scheduled to close in 2037. As a landfill, it serves the waste disposal needs of the surrounding communities in southeastern Michigan. The facility operates under the regulatory framework of the US EPA, specifically RCRA Subtitle D for municipal solid waste landfills, and must comply with Clean Air Act landfill gas rules. Landfills of this scale typically employ liners, leachate collection systems, and gas collection infrastructure to manage environmental impacts. The site's long operational history and planned closure date suggest it is a major regional disposal facility. Pine Tree Acres plays a significant role in the solid waste management infrastructure of Macomb County and the Detroit metropolitan area. Its environmental significance includes the management of landfill gas, which can be captured for energy generation or flared to reduce methane emissions. The facility's proximity to residential areas and groundwater resources requires careful leachate management and monitoring to protect local ecosystems.

The landfill is situated in a region with a temperate climate and proximity to the Great Lakes watershed, making groundwater protection a key environmental concern. Leachate management and methane capture are critical for minimizing impacts on local water resources and air quality. The facility's location in a suburban area also necessitates careful traffic and odor management to maintain community relations.