A BMP (Best Management Practice) is a method used to prevent or control storm water runoff and the discharge of pollutants, including sediment, into local waterbodies. Silt fences, inlet protection and site-stabilization techniques are typical BMP's on a construction site.

All land-disturbing activities, including clearing, grading, and excavation that disturb 1 or more acres are required to be covered under the South Dakota Department of Environment and Natural Resources NPDES construction storm water permit prior to land disturbance.