The EPA regulates the permissible amounts of lead and copper in public drinking water, and requires periodic testing to ensure that water systems meet the required standards.
For system operators
- Lead and Copper Rule Revisions and Lead Service Line Inventories Lead and copper rule revisions that become effective in 2024, and resources for conducting an inventory of lead in service lines
- Developing Corrosion Control Treatment Recommendations based on EPA guidance
For water customers
- Understanding Lead and Copper Measurements in Drinking Water How to use our Drinking Water Watch tool to understand lead and copper measurements in your drinking water
- Lead Materials Inventory 2019A report by public water suppliers on possible sources of lead in their pipes, plumbing or other equipment
