Which phase of the landfill construction involves preparing the foundation for waste?

The phase of landfill construction that involves preparing the foundation for waste is base cell floor construction. This step is crucial as it establishes the foundational layer upon which the waste will be deposited. The base cell floor must be carefully engineered and constructed to ensure it can support the waste and manage leachate effectively. It typically includes the installation of a composite liner system to prevent contamination of the underlying soil and groundwater, making it a critical part of landfill design and operation.

Preparation of this foundation ensures stability and compliance with environmental regulations, facilitating the safe and efficient management of waste. The other phases mentioned, such as location assessment, structural analysis, and environmental impact assessment, are all important components that occur prior to this stage or serve different purposes in the larger context of landfill planning and design.