President Biden on Tuesday announced $2.6 billion in funding to replace all lead pipes in the United States as part of a new EPA rule that will require lead pipes to be identified and replaced within 10 years using the new funding from the Bipartisan Infrastructure Act.
Iirc the issue with Flint was they changed water sources and with it the PH of the water, dissolving the mineral deposits that were insulating the water from the lead pipe itself.