The [Environmental Protection Agency] has set a 10-year deadline for most utilities to replace lead service lines, but omitted requirements for schools to replace the water fountains or plumbing that have lead components.
Archived at https://ghostarchive.org/archive/F5qXx
A lot of older buildings around the world will probably have some lead in them still. Especially homes from the 60s and older. It’s one of the reasons you shouldn’t drink anything that comes from the hot tap.
Of course there’s no excuse for not having replaced the service lines, and water pipes in public buildings. It’s been at least 50 years since we realised putting lead in everything wasn’t a great idea. But I guess that costs money, and those third world countries won’t bomb themselves.