Contamination problem

I have an ongoing problem with my lawn getting killed by contamination coming on my property after rain. I have contacted all elected officials for help and contacted EPA. No one seems interested in doing anything to get it stopped. The Ohio EPA actually told me to quit complaining. Federal EPA says it is an Ohio EPA issue. I was even told that I had no right to complain about what happens in the side ditch in front of my house because it is county property. But, my deed says that the center of the road is the property line. They have been issued warnings about controlling storm water runoff, but it never stops. There are two government agencies that are or could be in charge of regulating the place, each say the other is responsible.