I understand that you tried to be freindly, but things may change when your neighbor starts to consider that he may need to hire a lawer to defend himself in court ($$$). It is also useful in court to show that a lawsuit was not your first choice of action. I am a little mistified that your state environmental agency and health department is so unconcerned. I too do not bother myself with what neighbors do until it overflows onto my place. My wife and I worked hard for our land, and we will not let others degrade it.
