I made a searchable database of public lead service line inventory records
I built a free site that aggregates public lead service line inventory records from across the US into one searchable place:
You can search by address, water system, city, or state. The source data is public, but it is often scattered across state, city, utility, spreadsheet, and PDF sources.
Important caveat: this is not a water test and it is not a replacement for checking with a local utility. The records are only as good as the public inventories they come from, so they can be incomplete, outdated, or wrong.
If there is demand, I may add an API so people can pull the data directly.