Error message

Image resize threshold of 10 remote images has been reached. Please use fewer remote images.

Definition of Stormwater Runoff

Definition of Stormwater Runoff

Stormwater runoff is rain and snowmelt that doesn't sink into the ground, but instead flows over it. Stormwater often water picks up pollutants such as oil, grass clippings, fertilizer, and pet waste, before it flows into a nearby body of water. In urban areas, stormwater runoff is a big cause of water pollution.