Lead and copper rule

The Lead and Copper Rule (LCR) is a regulation in the United States aimed at protecting drinking water from lead and copper contamination. Established under the Safe Drinking Water Act, it requires water utilities to monitor and control the levels of these metals, which can leach into water from pipes and fixtures. If levels exceed specific thresholds, utilities must take action to reduce contamination, such as replacing lead pipes or adding chemicals to prevent leaching. The rule helps safeguard public health, particularly for vulnerable populations like children, who are at greater risk from lead exposure.