What is the typical action level for lead in drinking water?

The typical action level for lead in drinking water is established at 15 micrograms per liter (µg/l). This threshold is significant because it represents the level at which water systems must take action to reduce lead levels in the water supply. The 15 µg/l action level is set by the U.S. Environmental Protection Agency (EPA) under the Lead and Copper Rule. When lead levels exceed this standard, water systems are required to notify the public and undertake additional steps to minimize lead exposure, such as corrosion control treatment and monitoring. The presence of lead in drinking water is a public health concern due to its potential harmful effects, especially in young children and pregnant women. Meeting this action level is essential for protecting consumers from lead contamination in their drinking water.