Redwood’s clean energy and recycling initiatives are designed to help the County achieve its goal of reducing GHG emissions to 30% below 1990 levels by 2020. Redwood’s on-site...
Services | Facilities | Landfill
Landfills
A landfill, sometimes referred to as a “dump”, is a waste management facility where waste materials are disposed of and buried in the ground. WM (formerly Waste Management) landfills are carefully engineered to minimize environmental impact and protect public health.
The process of creating a landfill starts with selecting a suitable site, taking into consideration factors such as proximity to population centers, geology, and hydrology. A liner system is constructed at the site to prevent leakage into the soil and groundwater. The liner typically consists of multiple layers of clay, plastic, and synthetic materials. This helps to create a barrier and isolate the waste from the surrounding environment.
Waste materials are then transported to the landfill, deposited in designated areas and covered with a layer of soil or other materials, known as daily cover, to reduce odor, control pests, and prevent littering.
Sustainable Landfill Technology at WM
WM’s modern landfills are designed with systems to collect and treat leachate, which is the liquid that seeps from the waste, as well as landfill gas, which is generated by the decomposition of organic materials in the landfill. The gas is captured and used as a source of renewable energy – in fact, the majority of WM’s fleet of vehicles have been powered by landfill gas since the 1980s.
Our landfills are carefully managed to minimize their impact on the environment. Measures such as proper waste compaction, methane gas collection, and leachate treatment systems help reduce potential pollution and control the release of harmful substances into the surrounding air, water, and soil.
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