COOLIDGE MSW LANDFILLL - Municipal Solid Waste Landfill in Coolidge, Arizona

COOLIDGE MSW LANDFILLL is an operational landfill located in Coolidge, Arizona, United States. It serves the solid waste management needs of Pinal County and the surrounding region. As a landfill, it is a key component of the local waste disposal infrastructure, handling municipal solid waste generated by residential, commercial, and industrial sources. The facility operates under the regulatory oversight of the US Environmental Protection Agency (EPA) and the Arizona Department of Environmental Quality. It must comply with RCRA Subtitle D standards for municipal solid waste landfills, which govern liner systems, leachate management, groundwater monitoring, and closure requirements. Additionally, the landfill is subject to Clean Air Act regulations for landfill gas emissions, including gas collection and control systems if the waste-in-place threshold is met. The landfill's location in the arid climate of central Arizona influences its operational practices, particularly regarding leachate generation and dust control. Proper management of landfill gas and groundwater monitoring are critical to minimizing environmental impacts. The facility plays an important role in the community by providing a disposal option for waste that cannot be recycled or composted, supporting public health and sanitation.

The landfill is situated in the Sonoran Desert region of Arizona, characterized by low rainfall and high evaporation rates. This arid climate reduces leachate generation compared to wetter regions, but groundwater protection remains a priority due to the proximity of the aquifer. Landfill gas, primarily methane, must be managed to prevent greenhouse gas emissions and odor issues. The facility's location near Coolidge and agricultural areas requires careful traffic management and dust control to minimize community impacts.