Typical of backward thinking so often seen on this forum. The responsibility for safe drinking water is FIRST with your local water authority. The EPA is third in line. The EPA does deserve to get sued, because their testing was very deficient: How many people run their faucets for 5 minutes before drinking?
Article says " The EPA was notified that Flint was using a contaminated drinking water source—the Flint River"
The article gets it wrong. The Flint River had problems, but they could be coped with. The city water department did not treat the water properly, so the water leached an unhealthy amount of lead from the old lead pipes between the water treatment plant and homes in Flint. From the article below "That’s not because the Flint River itself contains lead. It’s because when acidic, chlorinated water flows through pipes, it destroys their coating, allowing lead to leach in. This is a totally avoidable problem whose cure was not necessarily to return to more expensive Detroit water. Rather, it was to simply add phosphorous to the water, something that could be done for as little as $50,000 annually, well within the means even of a cash-strapped city, "
And note that using the Flint River was a legal extender, between the end of their contract with the city of Detroit, and when about two years later they could receive water from Lake Huron.
I have read more informative articles on the subject elsewhere than here. Such as