Calexico Solid Waste Disposal Site - Landfill in Calexico, California, USA

The Calexico Solid Waste Disposal Site is a municipal solid waste landfill located in Calexico, California, near the New River and Highway 98. Operated by Imperial County, the facility is currently open and has a projected closure year of 2077, indicating long-term service for the Imperial Valley area. As a landfill in California, the facility operates under the US EPA's RCRA Subtitle D regulations for municipal solid waste, as well as state-level requirements from CalRecycle. Landfills of this scale typically employ liner systems, leachate collection, and gas management to mitigate environmental impacts, though specific technical details for this site are not publicly available. The site plays a key role in managing solid waste from Calexico and surrounding communities in Imperial County. Its location near the New River and agricultural areas underscores the importance of proper leachate and gas management to protect local water resources and air quality.

The Calexico Solid Waste Disposal Site is situated in the Imperial Valley, a region with hot, arid climate and intensive agriculture. Landfills in such areas face challenges related to groundwater protection due to shallow aquifers and irrigation canals. Methane generation from decomposing waste requires effective gas collection systems to reduce greenhouse gas emissions and odor impacts on nearby communities. Proximity to the New River also necessitates robust leachate management to prevent surface water contamination.