You are just telling me and others what you think.  What is important is the founding legislation which granted powers to the EPA.  If those powers include regulation of non-toxics so be it.  Given the supreme court decision cited by Motley C, it would appear that the highest court in the land believes that EPA founding legislation does not give it the powers it claimed.  Doesn't matter what I think or you think.  It matters what the founding legislation says.