Surface Runoff
A term used to describe the occurrence when soil is infiltrated to full capacity and excess water from rain, melted snow and other sources flow over the land. Surface runoff is a major part of the water cycle or hydrological cycle.
runoff
The portion of the total precipitation on an area that flows away through stream channels. Surface runoff does not enter the soil. Groundwater runoff or seepage flow from groundwater enters the soil before reaching the stream.
Runoff: Precipitation that flows overland to surface waters, such as streams, rivers, and lakes.
Runoff: The amount of precipitation appearing in surface streams, rivers, and lakes; defined as the depth to which a drainage area would be covered if all of the runoff for a given period of time were uniformly distributed over it.
Runoff: Precipitation that flows over land to surface streams, rivers, and lakes.
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Runoff - Water flowing over or just beneath the land surface, following the natural contour or slope of the land, and not confined by a channel such as a permanent or temporary stream.
Runoff: the portion of precipitation, snow melt, or irrigation which flows over and through soil, eventually reaching surface water (streams, rivers, lakes).
Runoff
Precipitation that falls to the ground in the form of a liquid.
Reverse osmosis ...
runoff The total amount of water flowing into a body of water. It includes overland flow, return flow, and interflow.
runoff
Water that is not absorbed by soil and drains off the land into bodies of water, either in surface or subsurface flows.
salinity ...
Runoff
Portion of rainfall, melted snow, or irrigation water that flows across the ground's surface and is eventually returned to streams. Runoff can pick up pollutants from air or land and carry them to receiving waters.
URBAN RUNOFF: Water from an urban area that neither infiltrates the soil nor is consumed, but flows into a storm sewer or open waterway.
urban runoff. Stormwater from city streets and adjacent domestic or commercial properties that may carry pollutants of various kinds into the sewer systems and/or receiving waters.
poison runoff - see polluted runoff.
poison - a chemical that adversely affects health by causing injury, illness, or death.
Direct Runoff- Water that flows over the ground surface or through the ground directly into streams, rivers, and lakes.
Surface Runoff
Precipitation, snow melt, or irrigation water in excess of what can infiltrate the soil surface and be stored in small surface depressions; a major transporter of non-point source pollutants in rivers, streams, and lakes.
Runoff The water that flows overland to lakes or streams during and shortly after a precipitation event.
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RUNOFF COEFFICIENT (RV)
A value derived from a site impervious cover value that is applied to a given rainfall volume to yield a corresponding runoff volume.
RUNOFF PRETREATMENT ...
The runoff of irrigation water from the lower end of an irrigated field.
Tailings
Residue of raw material or waste separated out during the processing of crops or mineral ores.
Overland Runoff: That part of precipitation flowing overland to surface streams.
Stormwater Runoff: Surface water that washed off 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.
TOPSOIL AND RUNOFF Topsoil is the layer of soil that contains organic material and provides growing space for many plants. In technical terms topsoil is described as the "A horizon" of a soil profile.
recharge The process by which water is added to a reservoir or zone of saturation, often by runoff or percolation from the soil surface.
surface runoff water flowing over the surface of the land.
surface tension the force at the water's surface that resists being penetrated by small and/or microscopic particles or living things.
receiving waters Bodies of water that receive runoff or wastewater discharges, such as streams, rivers, and lakes. recharge Process by which precipitation or applied water seeps or percolates into the groundwater system.
"Non-point" sources include runoff from land treated with pesticides, fertilizers or herbicides, car exhaust, contaminated sediments, storm water runoff, atmospheric deposits and domestic sewage5.
runoff from construction sites, farms, or paved and other impervious surfaces e.g. silt
discharge of contaminated and/or heated water used for industrial processes ...
A sewer system that carries both sewage and storm-water runoff. Normally, its entire flow goes to a waste treatment plant, but during a heavy storm, ...
Combined Sewers: A sewer system that carries both sewage and storm-water runoff.
(1) An area from which surface runoff is carried away by a single drainage system. (2) The area of land bounded by watersheds draining into a river, basin or reservoir.
Definition source
Synonyms (english only) ...
Agricultural pollution
Farming wastes, including runoff and leaching of pesticides and fertilizers; erosion and dust from plowing; improper disposal of animal manure and carcasses; crop residues, and debris.(1) ...
Sewer: A channel or conduit that carries waste water and storm water runoff from the source to a treatment plant or receiving stream.
SF6: Sulfur hexafluoride; a physiologically inert gas used as a tracer in building investigations.
A sewer system that carries only sanitary sewage; no storm-water runoff.
The Benefits of Green Roofs
Green roofs, which use plants and soil on rooftops to reduce rainwater runoff, increase energy efficiency, and improve urban ecology, can have far-reaching positive effects on the global environment.
benefits for the residents themselves by reducing the heat load on the building and monthly utility costs and by providing additional outdoor space, but they also provide benefits for the surrounding community by controlling the rate of storm runoff ...
Pathogens - Microorganisms that can cause disease in other organisms or in humans, animals and plants (e.g., bacteria, viruses, or parasites) found in sewage, in runoff from farms or rural areas populated with domestic and wild animals, ...
A pond or reservoir, usually made of earth, built to store polluted runoff.
Holding Time
The maximum amount of time a sample may be stored before analysis.
bioswale: landscape element designed to capture rainwater runoff and remove silt and pollution before it enters the water table.
Hydraulic Cycle: The continuous circulation of water between the earth and the atmosphere, through condensation, precipitation, runoff, percolation, evaporation, transpiration, groundwater storage and seepage, ...
Sump
A pit or tank that catches liquid runoff for drainage or disposal.
Superfund
See Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA).
Sheet and rill erosion. The removal of layers of soil from the land surface by the action of rainfall and runoff. It is the first stage in water erosion.
Clear Cut
Harvesting all the trees in one area at one time, a practice that destroys vital habitat and biodiversity and encourages rainfall or snowmelt runoff, erosion, sedimentation of streams and lakes, and flooding. ...
When there is too much water on the surface to infiltrate into the ground, it becomes runoff and ends up in lakes, streams, or oceans. Evapotranspiration is a two part process driven by the sun.
Hydrological (water) cycle is he cycle of the earth's water supply from the atmosphere to the earth and back which includes precipitation, transpiration, evaporation, runoff, infiltration, and storage in water bodies and groundwater.
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Topography, or relief, influences the stability of the parent material or soil, the volume and rate or water infiltration into the soil profile or surface runoff, the microclimate on different aspects, and the form and quantity of precipitation.
terrace intercepts surface runoff so that water soaks into the soil or flows slowly to a prepared outlet.
Tertiary - a period of the Cenozoic Era of geologic time (65 to 2 to 3 million years ago).
 See also: Water, Soil, Environment, Waste, Environmental
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