Actually most cases of runoff these days are from lawn fertilizer and manure from very large livestock operations. The later is on its way to being controlled

Actually most cases of runoff these days are from lawn fertilizer and manure from very large livestock operations. The later is on its way to being controlled with farmers having to fill out and get approved plans for manure disposal. Nothing is being done that I am aware about lawn fertilizer overuse and I am not certain as to why?