What is the action level for lead in water?

The action level for lead in drinking water is set at 15 parts per billion (ppb). This threshold is significant as it serves as a regulatory limit established by the Environmental Protection Agency (EPA) under the Lead and Copper Rule. When lead concentrations exceed this level, water systems are required to take certain actions, such as informing the public, conducting additional monitoring, and potentially replacing lead service lines to reduce the lead in water.

This standard is rooted in health considerations, as lead exposure can have serious health consequences, particularly for vulnerable populations such as children and pregnant women. Thus, the 15 ppb action level is designed to ensure safety and protect public health by minimizing lead exposure through drinking water.