What is the Maximum Contaminant Level for Lead?

The Maximum Contaminant Level (MCL) for lead in drinking water is set at 0.015 parts per million (ppm). This regulatory standard is established by the Environmental Protection Agency (EPA) to ensure that public drinking water supplies are safe and protect human health. Lead is a toxic metal that can cause serious health problems, particularly in young children, including developmental issues and cognitive impairments. Public water systems are required to take action to reduce lead levels in water when they exceed this limit. The value of 0.015 ppm is critical for implementing measures that safeguard water quality and public health, leading to proactive testing and mitigation strategies where lead is prevalent in water infrastructure. Understanding this MCL helps water operators maintain compliance and protect consumers effectively.