Look up your water service line
Enter an address, ZIP code, city, or water system name. We'll route you to the utility's EPA-reported inventory record.
No data about your search is stored. We do not use your search for marketing.
Frequently asked
How do I know if my house has a lead service line?
Your water utility's LCRR inventory is the authoritative source. Enter your address or ZIP above and we'll route you to your utility's own inventory record. If your line is listed as 'unknown,' the utility has not yet verified its material.
What does 'unknown' mean in my utility's inventory?
It means the utility does not yet have documented proof of the pipe material. Under the EPA's LCRR, 'unknown' is treated as lead for planning and replacement purposes until inspected.
How accurate is this data?
All data on LeadPipeLookup comes directly from EPA SDWIS, EPA ECHO, and individual utility inventories. We do not estimate or model — we only surface what utilities have published. Each page shows the last verification date and links to the primary source.
Who pays for lead service line replacement?
Responsibility varies by utility. Public-side (the line from the main to your property line) is usually the utility's responsibility. Private-side (your property line to your house) is historically the homeowner's, but $15B in federal BIL/IIJA funding is increasingly covering both.
How this tool works
Under the EPA's Lead and Copper Rule Revisions (LCRR), every US public water system was required to publish a service line inventory by October 16, 2024. LeadPipeLookup aggregates these inventories — along with EPA SDWIS, EPA ECHO, HUD address crosswalks, and CDC county-level blood lead surveillance — into a single searchable interface. We never estimate materials: if the utility reports "unknown," we report "unknown."