DENVER ARAPAHOE DISPOSAL SITE-A Landfill, Aurora, Colorado | Waste Management Facility

DENVER ARAPAHOE DISPOSAL SITE-A is a landfill facility located at 3500 South Gun Club Road in Aurora, Colorado, within Arapahoe County. Operated by Waste Management, one of the largest solid waste management companies in the United States, this site plays a key role in regional waste disposal. The facility is classified under NAICS code 562212 (Solid Waste Landfill) and is currently operational. As a modern landfill in the United States, this 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. It must comply with landfill gas management rules under the Clean Air Act, including gas collection and control systems to reduce methane emissions. Leachate management systems are also required to protect groundwater resources, given the facility's location in a semi-arid climate with periodic precipitation. The landfill serves the growing Denver-Aurora metropolitan area, managing significant tonnages of municipal solid waste annually. Its environmental significance lies in its role in waste containment and methane capture, contributing to local greenhouse gas reduction efforts. The site's proximity to residential areas and transportation routes necessitates careful traffic management and community engagement.

The landfill is situated in Arapahoe County, Colorado, a region with a semi-arid climate and periodic heavy rainfall events that can stress leachate management systems. Groundwater protection is critical due to the underlying aquifer systems. Methane generation from decomposing waste requires active gas collection to minimize greenhouse gas emissions and comply with Clean Air Act regulations. Community proximity and truck traffic are ongoing considerations for local residents.