This report looks are drinking water along the Mon River and finds some interesting facts. Through the report is a few years old the findings outline on EWG.org remain the same. As Pennsylvanians we have a constitutional right to clean water.
The Izaak Walton League report on Drinking Water along the Monongahela River can be found here: https://drive.google.com/file/d/1K9-ygNwL9BBFb9XV_qrLq3EehqpQeO5l/view?usp=sharing
More recent Drinking Water data for the Monongahela River is available here:
Similar Drinking Water data for the Allegheny River is available here: