What is the purpose of monitoring groundwater at landfills?

Monitoring groundwater at landfills is primarily focused on detecting and preventing contamination from landfill leachate. Leachate is a liquid that forms when water filters through waste materials in a landfill, potentially carrying harmful contaminants. By regularly monitoring the groundwater, regulatory agencies and landfill operators can identify any signs of contamination early, ensuring that appropriate actions can be taken to mitigate environmental impacts and protect water resources.

While other monitoring aspects may be relevant, such as securing the site or assessing methane emissions, the critical purpose of groundwater monitoring is centered on protecting public health and the environment from hazardous substances that could leach into the water supply from the landfill. This proactive approach is crucial in maintaining compliance with environmental regulations and fostering community trust in landfill operations.