https://www.nytimes.com/2008/01/29/health/29real.html
https://blogs.edf.org/health/2018/02/26/lead-hot-water-issue...
https://www.denverwater.org/tap/psa-dont-drink-or-cook-with-...
It can’t both accumulate and leave at the same time.
https://www.nytimes.com/2008/01/29/health/29real.html
https://blogs.edf.org/health/2018/02/26/lead-hot-water-issue...
https://www.denverwater.org/tap/psa-dont-drink-or-cook-with-...