We do have tributaries, streams, and other city waterways.. Since I live out in the County, there is protected "Fat Pocketbook Mussel" species in just about all local areas. There is other protected wildlife that is considered at risk for dumpage of grass waste. According to the Arkansas Standards of the PC&E, since grass waste is sprayed with herbicides, it is considered hazardous waste and is monitored. Since trees absorb water from the ground..surface water too, and air pollutants, it is considered hazardous waste and is subject to monitoring. I mean sometimes the State and mostly local officials become anal about off site dumping. There is a real problem in my area of building material illegal dumping that has brought attention to abandoned farm land. This public eye sore material is being sought out as a problem and it often falls on the other regulations involving other sources of dumpage. This other source is considered unapproved off site dumping. The word "Approved" is a term by the EPA and the PC&E. You don't want these officials on your land with their clipboards and viles taking samples of surface water. Heaven forbid they should take shallow water samples because they will find things in the water from 100 years ago. The problem is.......it is your land, you dump on it from commercial business means and you will be fined and forced to clean up the site. After this, the state will pay you little visits from time to time. It has happened to a distant friend who tried to fill in a old gravel pit with lawn waste, leaves, limbs, and other hard fill materials. The state came down on him real hard and the costs for extracting all this material was astronomical.
I am not telling you a fish story either.