Lead and Copper Rule Revisions

Service Line Inventory requirements in the Lead and Copper Rule Revisions (LCRR)

The Lead and Copper Rule applies to all Community (CWS) and Non-Transient (NTNC) public water systems. EPA adopted revisions to the Lead and Copper Rule in 2021 that include a requirement for public water systems to conduct inventories of service lines and to identify service line material type. The intent of the service line inventory requirement is to identify those service lines made of lead so that they can be scheduled for removal and replacement.

Public water systems must conduct an inventory of all service lines, on both the water system side and the homeowner side of the meter, and to submit the results to OHA–Drinking Water Services (DWS) by October 16, 2024.

Frequently Asked Questions (FAQ)

Statistical Guidance for Evaluating Unknown Service Lines

Inventory Templates

For Community public water systems
For Non-Community Non-Transient public water systems – coming soon

Free Trainings and Webinars

ASDWA's free webinar series: Implementation Tools and Best Practices for Lead Service Line Inventories and Replacements. This is a series of six monthly sessions beginning November 10, 2022. To register for these webinars, please click here.

Helpful Links

EPA Guidance for Developing and Maintaining a Service Line Inventory (August 2022)
LCRR Service Line Inventory Requirements OHA Presentation from 6/29/22 (Recording from 6/29/22)
Together, Let's Get the Lead Out (video) - American Water Works Association (AWWA)
Preparing a Lead Service Line Inventory – The Lead Service Line Replacement Collaborative offers resources on where to start, reviewing existing data, identifying service line material, and integrating data collection into ongoing activities.
ASDWA Lead Service Line Inventory Framework - Association of State Drinking Water Administrators
Revised Lead and Copper Rule - U.S. Environmental Protection Agency