Edgewood Disposal Site - Landfill in Marin County, California, USA

Edgewood Disposal Site is an operational landfill located in Marin County, California, United States. It serves as a solid waste management facility for the surrounding area, handling municipal solid waste under the regulatory oversight of the US Environmental Protection Agency (EPA) and the California Department of Resources Recycling and Recovery (CalRecycle). The facility is situated on Edgewood Road, approximately one mile east of the southeastern area, and operates under NAICS code 562212 for solid waste landfills. As a landfill, Edgewood Disposal Site is subject to federal regulations including RCRA Subtitle D for municipal solid waste landfills and Clean Air Act requirements for landfill gas management. The facility likely employs standard landfill practices such as waste compaction, daily cover, and leachate collection systems. In California, landfills must also comply with state-specific regulations regarding methane emissions, groundwater monitoring, and liner systems to protect environmental health. The environmental significance of Edgewood Disposal Site lies in its role in managing waste from Marin County and nearby communities. Landfills in this region must address challenges such as methane gas generation, leachate management, and proximity to residential areas. The facility contributes to local waste diversion goals and may incorporate gas collection systems to reduce greenhouse gas emissions, aligning with California's climate action targets.

Marin County's Mediterranean climate and proximity to San Francisco Bay create specific environmental considerations for landfill operations. The facility must manage leachate to prevent groundwater contamination, particularly given the region's seasonal rainfall patterns. Landfill gas, primarily methane, requires collection and control to mitigate greenhouse gas emissions and odor impacts on nearby communities. The site's location in a seismically active zone also necessitates engineering controls to maintain liner integrity and slope stability.