TOSCO / OLD SITES (FORMERLY AVON REFINERY) Landfill - Martinez, California Solid Waste Management

TOSCO / OLD SITES (FORMERLY AVON REFINERY) is a landfill facility located on Solano Way in Martinez, California, within Contra Costa County. As a solid waste management site, it handles municipal and industrial waste for the region, operating under the regulatory framework of the US EPA's Resource Conservation and Recovery Act (RCRA) Subtitle D, which governs municipal solid waste landfills. The facility operates as a landfill, a common disposal method in California, where stringent state and federal regulations require liners, leachate collection systems, and groundwater monitoring to protect environmental health. The site's NAICS code 562212 indicates it is classified as a Solid Waste Landfill, focusing on waste disposal and management. Given its location in the San Francisco Bay Area, the landfill serves a densely populated urban region with significant waste generation. Proper management of landfill gas and leachate is critical to minimize methane emissions and prevent groundwater contamination, aligning with California's ambitious climate and environmental goals.

The landfill is situated in Martinez, California, within the San Francisco Bay Area, a region with a Mediterranean climate and high population density. Key environmental considerations include landfill gas generation (primarily methane), which requires collection and flaring or energy recovery to reduce greenhouse gas emissions. Leachate management is also critical due to the area's seasonal rainfall, necessitating robust containment and treatment systems to protect local groundwater and nearby waterways like the Carquinez Strait.