Which of the following is a source of leachate in a well-designed landfill cell?

In a well-designed landfill cell, leachate refers to the liquid that has percolated through the waste and potentially dissolved harmful components. The key sources of leachate include precipitation that falls directly onto the landfill and moisture already present in the solid waste. When precipitation occurs, it can seep through the layers of waste, mixing with the waste materials and forming leachate. Additionally, the moisture content inherent in the solid waste itself contributes to the leachate generation as the waste decomposes and releases water.

This understanding highlights the importance of effective landfill design and management, particularly in ensuring that systems are in place to collect and treat leachate to prevent environmental contamination. Other potential sources of leachate, such as stormwater runoff and groundwater infiltration, may be managed effectively in a well-designed facility to minimize their contributions to leachate production. This emphasizes the function of a well-constructed landfill to control and treat water inputs to reduce pollutants from leaching into the surrounding environment.