rainwater which does not infiltrate into the soil and runs off the land
For the purpose of this document, any stormwater that flows overland before infiltrating into the ground.
Rainwater that runs off of land and surfaces like roads and parking lots into a larger body of water. Jump to Top
The rainwater, melting snow, and associated material draining into storm drains and water bodies.
Precipitation and snowmelt runoff from roadways, parking lots, roof drains that is collected in gutters and drains; a major source of nonpoint source pollution to water bodies.
precipitation that does not infiltrate into the ground or evaporate due to impervious land surfaces but instead flows onto adjacent land or water areas and is routed into drain/sewer systems.
water that flows along streets or the ground as a result of a storm.
The water derived from rains falling within a tributary basin, flowing over the surface of the ground or collected in channels or conduits.
Water that flows off impervious surfaces such as roads, parking lots and roofs of buildings because it cannot enter and soak into the ground.
Precipitation that flows overland to surface streams, rivers, and lakes, either directly or through storm sewers.
overland runoff from snowmelt or a precipitation event.
precipitation running off of saturated soils and impervious surfaces such as paved parking lots, streets, or roofs.
Water that washes off the land after a rainstorm. In developed watersheds it flows off roofs and pavements into storm drains which may feed directly into the stream: often carries concentrated pollutants.
surface water that washes off land after a rainstorm; in developed areas, rather than being allowed to drain into the soil, water flows off roofs and pavement into storm drains which feed directly into a stream or river.
rainwater that runs off a hard surface into the nearest body of water
extra rainwater that does not soak into the ground and lows over the land to surface water bodies.