Keystone Union Mine Landfill - Calaveras County, California Solid Waste Management

Keystone Union Mine is an operational landfill located in Calaveras County, California, United States. As a solid waste management facility, it serves the local region by providing disposal capacity for municipal and industrial waste. The facility operates under the jurisdiction of the US EPA and California state environmental agencies. The landfill is classified under NAICS code 562212 (Solid Waste Landfill). In the United States, landfills are regulated under RCRA Subtitle D for municipal solid waste and must comply with Clean Air Act landfill gas rules. California imposes additional stringent requirements for landfill gas collection, leachate management, and groundwater monitoring to protect public health and the environment. Keystone Union Mine plays a role in the regional waste management infrastructure. Its location in a rural area of Calaveras County influences considerations such as transportation distances and community proximity. Proper management of landfill gas and leachate is critical to minimize environmental impacts, including methane emissions and groundwater contamination risks.

The landfill is situated in Calaveras County, California, a region with a Mediterranean climate and varied topography. Key environmental considerations for this facility include landfill gas generation and methane leakage, which contribute to greenhouse gas emissions. Leachate management is also critical due to potential groundwater proximity in the area. Community proximity and truck traffic are additional factors that influence operational practices and regulatory oversight.