In fact, sediment deposited by storm runoff is a major source of surface water pollution. Pollution like this is defined as nonpoint-source, since it arises from many small, dispersed sources. In Georgia, we all live in watersheds. Soil erodes when water or wind carries off soil particles and deposits them somewhere else, such as in a stream, river or at the bottom of a bay. Besides soil sediment, runoff can wash fertilizer and other pollutants along with it.
Sediment makes up most of the pollutant carried by runoff.
And most of the phosphate and pesticides entering Georgia's waters are attached to these soil particles. Erosion in the home landscape also creates unsightly bare areas. It deposits mud and dust on driveways and walkways. Then you track it into the house. It all starts when rain or irrigation water loosens soil particles.