Sheet flow runoff definition
Sheet flow runoff means the movement of water, usually storm runoff, flowing in a thin layer over the ground surface; also called overland flow that occurs when excess stormwater, melt water, or other sources of water flow over the ground surface.
Sheet flow runoff means water, usually storm runoff, flowing in a thin layer of the ground surface; also called overland flow. (by convention this distance does not exceed 300 feet)