Service Line Inventory Requirements For Lead And Copper Rule Revisions (LCRR)

The U.S. Environmental Protection Agency’s (EPA) Federal Lead and Copper Rule Revisions (LCRR) went into effect in 2021.

Under the LCRR, all public water systems (PWS) in Wisconsin must submit an initial Service Line Materials Inventory to the Department of Natural Resources (DNR) by Oct. 16, 2024.

In addition to submitting an initial Service Line Materials Inventory to the DNR, all public water systems must make their inventories publicly accessible, and some water systems must meet Consumer Confidence Report (CCR) and Consumer Notification (CN) requirements.

All public water systems must:

• Submit initial inventory by Oct. 16, 2024.
• Make initial inventory publicly accessible by Oct. 16, 2024.
• Submit required information about how inventory was completed and how the inventory was made publicly accessible.

Additional inventory requirements:

• All Community Water Systems (CWS) must meet Consumer Confidence Report (CCR) requirements.
• Public water systems with one or more Lead, Galvanized Requiring Replacement, and/or Lead Status Unknown service lines must meet Consumer Notification (CN) requirements.

LCRR Service Line Inventory Resources

• LCRR Service Line Materials Inventory Instructions - A document that outlines the steps required to complete the LCRR Service Line Materials Inventory.
• Service Line Inventory Worksheet - A worksheet that can be used by water systems with ten or fewer service lines in their distribution system to complete the initial service line materials inventory.
• Service Line Inventory Spreadsheet Template [XLSX] - Water systems with ten or more service lines in their distribution system can use this template to complete the initial service line materials inventory.
• LCRR Inventory Methods & Completeness Form [DOCX] - A form for Community Water Systems to document and report to the DNR that their inventory meets the federal methods and completeness requirements.
• Technical Assistance for CWS - An informational webpage for Community Water Systems that are eligible to receive free technical assistance from Jacobs Engineering to complete their initial lead service line materials inventory.

EPA LCRR Service Line Inventory Resources

• EPA Guidance for Developing and Maintaining a Service Line Inventory (2022) - EPA Guidance intended to support public water systems in complying with initial inventory requirements.
• EPA Developing and Maintaining a Service Line Inventory: Small Entity Compliance Guide (2023) - EPA guidance intended to support small water systems complying with initial inventory requirements.
• EPA Fact Sheet for Developing and Maintaining a Service Line Inventory - A fact sheet developed by the EPA as a reference for understanding key LCRR inventory requirements.
• 2021 LCRR Implementation Fact Sheet (2024)

Inventory-Related Requirements: Public Accessibility, Consumer Notice, And Consumer Confidence Report

• Public Accessibility Documentation Form [DOCX] - A form for Community Water Systems to document and report to the DNR how they have met the public accessibility requirements of the Federal 2021 Lead and Copper Rule Revisions.