Wow, that is interesting. I’ve never come across any actual lead pipe in a water system.
Either way, in the case of Flint, if their water system is lead pipe, then the lead issue was there all along. Switching from the Detroit system to the Flint river would have not made any real difference.
Where on the Flint river are they pulling their water from?
It’s an issue in neighborhoods with older construction.
The cost of replacing every individual line would be insane.