Stormwater
Stormwater
Stormwater (pronounced: /ˈstɔːmwɔːtər/), also spelled as storm water, is water that originates from rain, including snow and ice melt. The term is used to distinguish it from other types of water running off the surface of the land.
Etymology
The term "stormwater" is a compound of the words "storm" and "water". It is first known to have been used in the late 19th century.
Definition
Stormwater is defined as water that originates during precipitation events and snow/ice melt. It may also be used to apply to water that originates with snowmelt or runoff water from overwatering that enters the stormwater system. Stormwater that does not soak into the ground becomes surface runoff, which either flows directly into surface waterways or is channeled into storm sewers, which eventually discharge to the surface waters.
Related Terms
- Runoff: The portion of the water cycle that flows over land as surface water instead of being absorbed into groundwater or evaporating.
- Surface water: Water that is on the Earth's surface, such as in a stream, river, lake, or reservoir.
- Storm sewer: Infrastructure designed to carry away excess rain and ground water from impervious surfaces such as paved streets, car parks, parking lots, footpaths, sidewalks, and roofs.
- Groundwater: Water held underground in the soil or in pores and crevices in rock.
- Precipitation: Any product of the condensation of atmospheric water vapor that falls under gravity from clouds.
External links
- Medical encyclopedia article on Stormwater
- Wikipedia's article - Stormwater
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