What is the MCL for lead as determined by water quality standards?

The maximum contaminant level (MCL) for lead in drinking water, as established by the U.S. Environmental Protection Agency (EPA) through the Lead and Copper Rule, is set at 0.015 mg/L. This standard is implemented to protect public health, as lead is a toxic metal that can cause a variety of health issues, particularly in young children and pregnant women. The MCL is determined based on monitoring the presence of lead in drinking water systems, ensuring that levels remain below this threshold to minimize exposure and potential health risks. Maintaining lead levels at or below 0.015 mg/L is crucial for ensuring the safety and quality of drinking water.