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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.

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ASDWA Submits Comments on EPA’s Federalism Consultation on the Lead and Copper Rule Improvements

December 14th, 2022 Ashley Voskuhl Pursuant to Executive Order 13132, which directs federal agencies to consult with state and local officials, or their national organizations, when developing regulations that impose substantial compliance costs on state and local governments, EPA held a Federalism Consultation on the Lead and Copper Rule Improvements (LCRI) on October 13, 2022.  This consultation was also used…

EPA’s Recent Regulatory Actions Now Face a Slightly Uncertain Future Schedule

January 22nd, 2021 Alan Roberson Three recent regulatory actions from EPA (Final Lead and Copper Rule Revisions [LCRR], proposed Fifth Unregulated Contaminant Monitoring Rule [UCMR5] and final regulatory determinations for PFOA, PFOS, and other Fourth Contaminant Candidate List [CCL4] contaminants) are now all in flux. Based on the new Executive Order "Regulatory Freeze Pending Review", all three of these regulatory…

Final LCRR Published in the Federal Register

January 15th, 2021 Alan Roberson The final Lead and Copper Rule Revisions (LCRR) were published in Friday's (1/15) Federal Register. This rule represents the culmination of a significant amount of work by a broad range of stakeholders to revise the existing 1991 Lead and Copper Rule (LCR). EPA staff deserves credit for getting the LCRR to the finish line. Today,…