Hot Spa Cut & Fill Site - Landfill in Niland, California, USA

Hot Spa Cut & Fill Site is a landfill facility located at 10466 Spa Road in Niland, California, within Imperial County. Owned and operated by Imperial County, CA, the site has been operational since 1954 and is scheduled to close in 2027. As a municipal solid waste landfill, it plays a key role in managing waste for the surrounding area. The facility operates under the regulatory framework of the US EPA, including RCRA Subtitle D for municipal solid waste landfills and Clean Air Act landfill gas rules. California's stringent state regulations further govern landfill operations, focusing on methane capture and leachate management. The landfill's long operational history reflects its importance in the region's waste infrastructure. Located in the arid Imperial Valley, the landfill's environmental context includes considerations for groundwater protection due to the region's agricultural irrigation and proximity to the Salton Sea. Proper leachate management and gas collection are critical to minimize methane emissions and protect local water resources. The site serves as a primary disposal option for Imperial County residents and businesses.

The landfill is situated in the Imperial Valley, a desert region with high evaporation rates and reliance on irrigation from the Colorado River. Groundwater protection is a key concern due to the shallow aquifer and agricultural runoff. Methane emissions from decomposing waste require active gas collection systems to comply with California's climate goals. The site's proximity to the Salton Sea also raises considerations for air quality and wildlife habitat.