Lead Service Line Inventory

The Lead Service Line Inventory is an inventory of every service line in a distribution system, including both the utility owned and customer owned service lines. Each must be categorized as either lead, non-lead, galvanized requiring replacement, or lead status unknown. The required systems must comply by October 16, 2024. Service line inventories are the foundation from which water systems take action to address a significant source of lead in drinking water – LSLs. Establishing an inventory of service line materials and identifying the location of LSLs is a key step in getting them replaced and protecting public health