Drinking water Lead and Copper Rule & Revisions

Lead and Copper Rule Revisions (LCRR)

On December 16, 2021, EPA finalized the Lead and Copper Rule Revisions (LCRR), which further strengthen the protections against lead in drinking water. The LCRR has a number of new requirements for water systems. In December 2023, the EPA proposed the Lead and Copper Rule Improvements (LCRI) which modify the 2021 LCRR. While the LCRI does not change the October 16, 2024 deadline for initial service line inventory submittals, it may delay other requirements of the LCRR. We will continue to provide updates once the LCRI is finalized.

We have created forms and guidance below to assist water systems with complying with the upcoming LCRR requirements.

Please be aware that water systems must continue to comply with the current LCR requirements until the LCRR goes into effect on October 16, 2024.

The department offers technical assistance and hands-on support for service line inventory (SLI) and lead service line replacement planning (LSLRP) activities to systems serving populations up to 15,000. Assistance is provided by the department’s dedicated SLI/LSLRP technical support contractors, WSP in partnership with Sunrise Engineering. This program is full, and is currently operating on a waitlist. To be placed on the waitlist, please complete a Service Agreement or email Colorado@LeadRemoval.info with questions. Please see our answers to frequently asked questions. 

Additional Information:

• Getting Ready for the Lead and Copper Rule Revisions.
• WQCD stakeholder engagement related to LCRR Rulemaking.
• EPA Lead and Copper Rule Revisions Page.
  • Code of Federal Regulations.
• Lead service line inventories and replacement.
  • Lead Service Line Inventory and Replacement Plan Requirements/FAQ.
  • Initial Service Line Inventory Policy.
  • Single Service Line Inventory Guidance.
  • Customer Outreach Guide for service line identification.
    • CDPHE customer outreach letter of support.
    • Outreach letter to customers template.
    • Customer survey form template.
    • Customer service line material identification guide.
    • Lead fact sheet.
  • EPA Guidance for Developing and Maintaining a Service Line Inventory.
  • Forms:
    • Non-Lead Service Line Inventory form required to be completed by community and NTNC water systems with all verified non-lead service lines.
    • Service Line Inventory form required to be completed by community and NTNC systems with one or more lead, "galvanized requiring replacement," or unknown service lines.
    • Lead Service Line Replacement Plan form required to be completed by systems with lead, "galvanized requiring replacement", and/or lead status unknown service lines.
• Service Line Material Notification:
  • Service Line Material Notification Requirements and FAQ Document.
  • Lead service line notification template for consumers with a service line known to contain lead. Note: Use the GRR notification template for galvanized currently downstream from a lead service line.
  • Galvanized requiring replacement (GRR) notification template for consumers with a galvanized service line currently or previously downstream from a lead service line.
  • Unknown service line notification template for consumers with a service line of unknown material.
  • Lead and Unknown service line notification template for consumers where one portion of the service line is lead, and the other portion of the service line is unknown. 
  • Service line consumer notification certificate of delivery.
• Lead testing in schools and child care facilities
  • Note: lead sampling in schools and child care facilities will likely be delayed until October 2027. This includes compiling and submitting a list of schools and child care facilities supplied by the system. 
    • Systems should compile a list of schools and child care facilities they supply closer to when the information will be applied to ensure they have the most up-to-date information. 
    • More information will be available in 2025.
  • Lead testing in schools and child care facilities: mandatory state program vs. LCRR requirements.
  • Test and Fix Water For Kids webpage - mandatory lead sampling for schools and child care programs (HB22-1358).
  • EPA 3Ts for Reducing Lead in Drinking Water in Schools and Child Care Facilities.

Lead and Copper Rule (LCR)