ST MARY'S CSWLF Landfill - Tucson, Arizona Solid Waste Management Facility

ST MARY'S CSWLF is an operational landfill located in Tucson, Arizona, United States. As a solid waste management facility, it handles municipal solid waste disposal for the surrounding region. The facility is classified under NAICS code 562212, which covers Solid Waste Landfills, indicating its role in the local waste management infrastructure. The landfill operates under the regulatory framework of the United States Environmental Protection Agency (EPA), specifically RCRA Subtitle D for municipal solid waste landfills and Clean Air Act (CAA) landfill gas rules. These regulations govern landfill gas collection, methane leakage control, and leachate management to minimize environmental impact. In Arizona, the facility also complies with state-level solid waste regulations. ST MARY'S CSWLF plays a key role in managing waste from Tucson and Pima County. Its operational status ensures ongoing waste disposal services for the community. The facility's environmental significance lies in its adherence to landfill gas and leachate management practices, which help reduce greenhouse gas emissions and protect local groundwater resources.

The landfill is situated in Tucson, Arizona, a region with an arid climate and limited water resources. Groundwater protection is critical, as leachate from landfills can contaminate aquifers. The facility must manage landfill gas, primarily methane, to reduce greenhouse gas emissions and comply with EPA regulations. Proximity to residential areas also requires careful traffic and odor management to minimize community impact.