Lead Service Line Inventory

EPA’s Lead and Copper Rule Revisions – New Requirements

On January 15, 2021, the U.S. Environmental Protection Agency (EPA) issued Lead and Copper Rule Revisions (LCRR) that went into effect on December 16, 2021. Group A Community and non-transient non-community (NTNC) water systems are required to follow the LCRR, which is located in 40 CFR 141. At the same time, EPA announced that it was going to begin new rulemaking to update these same requirements, which they identified as the Lead and Copper Rule Improvements (LCRI). The part of the LCRR not expected to change in the LCRI is the requirements relating to the Lead Service Line Inventory or LSLI. All other requirements of the LCRR are subject to change under the LCRI.

What does this mean to Group A water systems? To comply with the LCRR, community and NTNC water systems need to develop and submit a Lead Service Line Inventory (LSLI) to the state by October 16, 2024; while continuing to comply with the monitoring, reporting, and treatment requirements of the prior version of the Lead and Copper Rule.