https://www.wpxi.com/news/top-stories/newly-introduced-lead-safety-law-aims-protect-pittsburghers-their-children/6FW6TTUFJZFM5BDK7J7OHQO45M/

https://www.pennlive.com/life/2021/10/why-is-there-purple-paint-on-trees-everywhere-in-pennsylvania.html

https://www.publicsource.org/pwsa-pittsburgh-crisis-turnaround-infrastructure-spending-rates-water-bills/

https://www.pgh2o.com/news-events/news/press-release/2020-01-24-pwsa-releases-december-2019-lead-compliance-test-results