According to the lead and copper rule, how often must 7% of pipes be replaced?

The lead and copper rule requires that water systems must monitor lead and copper levels in their drinking water and take action if the levels exceed certain thresholds. Specifically, under this rule, utilities are required to replace a certain percentage of lead service lines or pipes that exceed the maximum allowable levels of lead. The regulation stipulates that at least 7% of lead service lines must be replaced each year as part of an ongoing effort to reduce lead in the drinking water supply.

This annual requirement ensures a consistent approach toward minimizing risks associated with lead exposure and ensures progress in reducing the number of lead pipes in service. While options may suggest other timeframes, only the annual replacement aligns with the regulatory standards set forth to protect public health effectively. By committing to this regular replacement schedule, water systems can maintain compliance with the lead and copper rule and work towards improving the safety of the drinking water.