Here's one: https://abcnews.go.com/US/tap-water-millions-americans-erin-brockovich-metal-report/story?id=42218891 https://abcnews.go.com/US/tap-water-millions-a

Here's one: https://abcnews.go.com/US/tap-water-millions-americans-erin-brockovich-metal-report/story?id=42218891 https://abcnews.go.com/US/tap-water-millions-americans-erin-... For lead alone there's a lot of variation in how many homes are impacted. The white house recently said 10 million are connected to lead service lines (https://www.whitehouse.gov/briefing-room/statements-releases/2021/12/16/fact-sheet-the-biden-harris-lead-pipe-and-paint-action-plan/ https://www.whitehouse.gov/briefing-room/statements-releases...)