By mulching or planting bare areas, you can reduce erosion. Seed your vegetable garden with a cover crop such as rye or hairy vetch for the winter. Promptly seed and mulch bare patches in your lawn. Mulch around trees and shrubs, too, will absorb water and direct it to the root systems. Small rills or gullies beginning to show.
Soil splashes on windows and outside walls.
Stream channels widening or deepening. Sediment collecting in low areas or on pavement. Another pollution problem from the landscape is leaves. It seems strange that something as natural as tree leaves can be a pollutant. But it makes more sense when you consider that storm drains can funnel organic debris from all over your community to one small stream.