What does the Maximum Contaminant Level (MCL) represent?

The Maximum Contaminant Level (MCL) represents the allowable highest concentration of a contaminant that can be present in drinking water, as established by regulatory agencies such as the Environmental Protection Agency (EPA). MCLs are designed to protect public health by ensuring that the levels of harmful substances remain within a safe threshold. They take into account potential health risks associated with contaminants and provide a regulatory limit that public water systems must adhere to.

This standard is crucial for maintaining the quality of drinking water and safeguarding the health of consumers. By enforcing an MCL, it ensures that water suppliers manage and monitor contaminants effectively, thus reducing the likelihood of adverse health effects from exposure to harmful substances.