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Lead in Drinking Water

Minimizing lead and copper in drinking water has been a regulatory challenge ever since EPA published the Lead and Copper Rule (LCR) in 1991. The rule established a maximum contaminant level goal (MCLG) of zero for lead in drinking water and a treatment technique to reduce corrosion of lead and copper within the distribution system. Since 1991, EPA and states have taken action to increase compliance with the LCR, update the rule to reflect new research and best practices, and better protect public health. The most recent federal action is a major update to the LCR, finalized in January 2020, known as the Lead and Copper Rule Revisions (LCRR).

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ASDWA Lead Service Line Inventory Framework

ASDWA worked with the Lead Service Line Inventory Workgroup to develop the State Implementation Framework for Lead Inventory Requirements under EPA’s Lead and Copper Rule Revisions (LCRR) and Template for CWS and NTNC Systems. The purpose of this framework and template is to provide useful and consistent information to primacy agencies, water systems, and consultants to start the development of lead service line inventories while EPA develops inventory guidance. The intent of this framework is to serve as a prequel for EPA’s Inventory Guidance and to ensure that everyone is working off the same information when starting inventories. The inventory template is intended to be used by states and water systems as a starting point for inventory development and data collection.


Download ASDWA's LSLI Framework

Download the CWS and NTNC Systems Template

ASDWA’s LCRR News Feed

ASDWA publishes content covering various areas of the drinking water program.

Learn More

Register Now: EPA-ASDWA Webinar on Lead Service Line Inventory Guidance

February 7th, 2024 Ashley Voskuhl Register now for the EPA-ASDWA webinar on Lead Service Line Inventory Guidance. This webinar will feature Melanie Bolden and Holly Young from EPA's Office of Water to discuss EPA's Lead Service Line Inventory Guidance, which helps to outline the steps water systems should take to initiate development of their inventories, in accordance with the 2021…

ASDWA Submits Comments on EPA’s Proposed Lead and Copper Rule Improvements

February 5th, 2024 Ashley Voskuhl Today, February 5, 2024, ASDWA submitted comments on the proposed Lead and Copper Rule Improvements (LCRI). ASDWA’s members developed extensive, in-depth comments based on over 20 hours of input from 165 state regulators across 41 states. States were encouraged by many of the changes proposed by EPA in the new rule, especially the requirement for…

Lead Updates: Less Than One Year Until LCRR Implementation Deadline

October 20th, 2023 Ashley Voskuhl As of October 20, 2023, the proposed Lead and Copper Rule Improvements (LCRI) is still under review by the Office of Management and Budget (OMB). This leaves less than one year for EPA to hold the public comment period for the proposed rule, address comments, make revisions to the proposal, and undergo review by OMB…