Gregory Canyon Landfill - Operational Solid Waste Facility in Bonsell, California

Gregory Canyon Landfill is an operational solid waste facility located off Highway 76, east of Interstate 15, approximately 2 miles south of Bonsell, California. Situated in San Diego County, this landfill serves the region's municipal solid waste disposal needs, operating under the jurisdiction of the United States Environmental Protection Agency (EPA) and the California Department of Resources Recycling and Recovery (CalRecycle). The facility is classified as a landfill, a common disposal method for solid waste in the United States. The facility operates under the regulatory framework of the US EPA's Resource Conservation and Recovery Act (RCRA) Subtitle D, which governs municipal solid waste landfills. Additionally, it must comply with the Clean Air Act (CAA) regulations for landfill gas emissions, including gas collection and control systems to mitigate methane leakage. California's state-specific regulations, such as Title 27 of the California Code of Regulations, impose additional requirements for liner systems, leachate management, and groundwater monitoring to protect local water resources. As a landfill in Southern California, Gregory Canyon Landfill plays a critical role in managing waste from the surrounding communities. The facility's environmental significance includes managing landfill gas to reduce methane emissions, a potent greenhouse gas, and implementing leachate collection systems to prevent groundwater contamination. Its proximity to residential areas and transportation routes necessitates careful traffic management and community engagement to minimize local impacts.

The landfill is located in a semi-arid region of Southern California, where water resources are scarce and groundwater protection is critical. Leachate management is a key environmental concern, as improper handling could affect local aquifers. Landfill gas collection systems are essential to capture methane, a greenhouse gas, and reduce odors. The facility's proximity to communities and highways requires ongoing monitoring of traffic, noise, and air quality to mitigate community impacts.