We are working to understand and regulate per- and polyfluoroalkyl synthetic chemicals, known as PFAS and PFOS, used to make water-repellent fabrics and non-stick products. These chemicals have been in prevalent use since the 1940s, but we need to learn more about their potential effects on human health and the environment.
The PFOA, PFOS is is a real concern and people need to be concerned about it and the water systems need to be concerned about it. But when you only focus on that, it could take resources away from other issues or problems that the water systems have diverted to just this. And this may not be a huge problem in every community.
The Obama administration's Clean Power Plan was stayed by the Supreme Court. That was an historic stay. They had never stepped in at that stage in litigation and actually issued a stay for a Clean Air Act regulation. They did that because I believe the Clean Power Plan was outside of the Clean Air Act. It was outside the bounds of the law.