Lead Service Line Identification, Inventories, and Replacement


Lead Service Lines (LSL) can be a significant contributor to lead levels at the tap. Many utilities have been actively identifying and removing LSLs to reduce lead exposure risk in drinking water. The proposed Lead and Copper Rule (LCR) revisions contain requirements for systems to develop and maintain a publicly accessible inventory of lead service lines and service lines of unknown materials. In addition, the proposed LCR contains requirements for systems with LSLs to develop a plan to replace LSLs. This webcast featured results from two Water Research Foundation projects, Evaluation of Lead Pipe Detection by Electrical Resistance Measurement (4698) and Lead Service Line Identification Techniques (4693) that looked at LSL identification techniques. This webcast also provided information on the current regulatory landscape of LSL inventories and replacement, perspectives from utility practitioners, and observations from state drinking water programs.