The Lead and Copper Rule and its revisions apply to all community and nontransient noncommunity waterworks. These regulations establish requirements for monitoring, treatment, consumer awareness, lead service line replacement, and public education, whenever the action levels for lead and copper are exceeded.
Lead and copper enter drinking water primarily through plumbing materials.
The rule requires systems to monitor drinking water at customer taps. If lead concentrations exceed an action level of 15 ppb or copper concentrations exceed an action level of 1.3 ppm in more than 10% of customer taps sampled, the system must undertake a number of additional actions to control corrosion. If the action level for lead is exceeded, the system must also inform the public about steps they should take to protect their health and may have to replace lead service lines under their control.
Revisions Being Considered by EPA:
EPA is considering Long-Term Revisions to the Lead and Copper Rule to improve public health protection by making substantive changes and to streamline the rule requirements. EPA’s primary goals in considering these revisions are to: