Iron County/Armstrong Pit LF - Cedar City, Utah Landfill | Solid Waste Management

Iron County/Armstrong Pit LF is a municipal solid waste landfill located at 3127 N Iron Springs Road in Cedar City, Utah. Owned and operated by Iron County, the facility has been operational since 1994 and is projected to continue operations until 2044. As a landfill, it plays a key role in managing the region's solid waste. The facility operates under the regulatory framework of the US EPA, including RCRA Subtitle D for municipal solid waste landfills and Clean Air Act regulations for landfill gas. In Utah, landfills must comply with state solid waste rules and typically implement liner and leachate collection systems to protect groundwater. The landfill's size and capacity are typical for a county-level operation serving a rural to semi-urban population. Environmental management at the site focuses on controlling landfill gas and leachate. Landfill gas, primarily methane, is collected and often flared or used for energy to reduce greenhouse gas emissions. Leachate is managed to prevent groundwater contamination. The facility's location in Iron County, with its arid climate and proximity to communities, underscores the importance of proper waste containment and monitoring.

In arid Utah, landfill operations must address leachate management despite low precipitation, as any leakage can impact groundwater in the region. Landfill gas collection is critical to mitigate methane emissions, a potent greenhouse gas. The facility's proximity to Cedar City requires careful management of traffic, odor, and litter to minimize community impact.