The LeadOut Map
Where are lead service lines? What might seem to be an easy question is made complicated by inconsistent or incomplete records.
LeadOut Map uses predictive modeling and AI to show where communities might be at risk of exposure to lead in their drinking water. It also reports the location of lead service lines in public water systems in all 50 states and Washington, D.C.
How to Use the Map
If you receive your water from a public utility, you can explore lead service line data in your community. Enter your address, which will identify your water utility company, or, if you know your water utility company name, enter that. You can also simply search by “current location.”
This map does not show information about specific addresses. (Your address is used to find the best possible estimate for your location.)
The map will populate with your water system’s information, if it is available, as well as an estimated number of lead service lines. The percentages estimate the likelihood that a home served by that water system is connected to lead service lines.
(If your drinking water comes from well water and septic, or is otherwise not connected to the utility, information about the location and likelihood of lead in service lines will not apply.)
The gray sections of the map indicate areas where we do not have information about the water system. They represent a lack of information—not a lack of lead.
What You See
REPORTED
Number of Lead Service Lines
This data comes from the Environmental Protection Agency and state governments. It includes the numbers of lines that have been reported lead, non-lead, and unknown. The number of lines reported unknown represents gaps in the current data; it doesn’t mean that there are no lead service lines in the area.
ESTIMATED
Number of Lead Service Lines
The LeadOut Map integrates publicly available data to predict the material of lead pipes based on similar water systems. One key factor is the age of a home, as lead pipe regulation increased gradually, beginning in the 1930s. Other factors include water quality tests and census information such as home values, housing occupancy and income rates, racial demographics, and more.