About LeadPipeLookup

LeadPipeLookup makes lead service line inventory data from the US EPA's Lead and Copper Rule Revisions (LCRR) and Lead and Copper Rule Improvements (LCRI) searchable and understandable for ordinary homeowners. We cover all ~56,000 US public water systems and publish a page per state, city, ZIP code, and utility.

Why we built this

Under the LCRR, every public water system had to publish an initial service line inventory by October 16, 2024. The data exists — but it's scattered across thousands of PDFs, dashboards, and spreadsheets on utility websites. The EPA's own SDWIS portal is geared toward researchers, not residents. We built a single searchable interface so you can answer one question in under 15 seconds: does my water utility think my service line is lead?

What we don't do

• No lead forms. We don't sell your search to plumbers or filtration companies.
• No ads. No banners, no sponsored links, no affiliate deals.
• No tracking of individual searches. We keep aggregate traffic stats only.
• No medical advice. If you suspect lead exposure, talk to a pediatrician or physician.
• No estimated materials. If your utility classifies a line as "unknown," we display "unknown." We never guess.

Who's behind it

An independent project. We're not affiliated with the EPA, any water utility, any advocacy group, or any company. If you're a journalist, researcher, or utility operator and want to flag a data correction or collaborate on reporting, email us at the address on the data sources page.

How often is the data refreshed?

Every source has its own cadence. EPA Envirofacts SDWIS is re-pulled monthly per state; Chicago's address-level inventory monthly; NJ and NY state-level LSL aggregates monthly; HUD ZIP crosswalks quarterly; CDC blood-lead surveillance quarterly. Additional city inventories are added as bulk CSV endpoints become available. See methodology, data sources, and changelog for specifics.

License

Source datasets remain the property of their publishers (EPA, HUD, CDC, utilities). Our aggregation, normalization, and commentary are released under CC0 1.0 (public domain). Embed us, cite us, build on us.