What is the MCL for lead in drinking water?

The maximum contaminant level (MCL) for lead in drinking water is established at 0.015 parts per million (ppm) by the Environmental Protection Agency (EPA). This standard is crucial for protecting public health, particularly because lead can have serious neurological effects, especially in young children. The MCL is designed to limit the amount of lead that can enter drinking water supplies and aims to reduce the risk of lead exposure from drinking water sources.

This value is informed by comprehensive research regarding lead's health effects and potential sources of contamination, such as lead pipes or plumbing fixtures. Maintaining the MCL ensures that water systems actively manage and monitor lead levels, thereby safeguarding consumers and promoting overall public health.