> The biggest reason is that essentially Chicago and other cities around Illinois required the use of lead service lines all the way until 1986, long after it was recognized that lead was poisonous and other cities had stopped using it. A decade after other cities had stopped using it Chicago and other cities in Illinois were not only using it but requiring the use of lead long after everybody else.
> The biggest reason is that essentially Chicago and other cities around Illinois required the use of lead service lines all the way until 1986, long after it was recognized that lead was poisonous and other cities had stopped using it. A decade after other cities had stopped using it Chicago and other cities in Illinois were not only using it but requiring the use of lead long after everybody else.
[0] https://news.wttw.com/2021/03/24/chicago-has-more-lead-servi...