Rights: Public domain Published 30 July 2013 Size: 200 KB

Run-off is water that runs off over the surface of the land. If there’s too much rain and it’s greater than the rate that the soil can accept, it can pool on the surface, and if you have a slope, water will sheet over the surface of the land and go into waterways. Nitrate can be lost from soils through run-off.

Public domain