That portion of precipitation that does not naturally percolate into the ground or evaporate, but flows via overland flow, underflow, or channels or is piped into a defined surface water channel or a constructed infiltration facility (Washington Department of Ecology, 1992).
Surface runoff from urbanized areas (such as streets, parking lots, retail malls, residential developments, subdivisions. etc.).
Water that runs off land in towns and cities.
Wet weather runoff from urbanized areas not included in the Phase I Storm Water Permit program. Includes potential Phase II Storm Water discharges, hydromodification, runoff from construction activities, and runoff from marinas.
Storm water from city streets and adjacent domestic or commercial properties that may carry pollutants of various kinds into the sewer systems and from there to rivers, lakes or oceans.
the input of hydrocarbons, heavy metals, pesticides, and other chemicals to the nearshore marine environment from densely populated areas.
Storm water from city streets and adjacent domestic or commercial properties that carries pollutants of various kinds into the sewer systems and receiving waters.
polluted water which runs off the hard surfaces of urban (including industrial) areas into bushland. It carries litter, oils, chemicals, organic materials, fertilisers, pesticides, sewage, soil particles, animal faeces and weed seeds.
Urban Runoff is composed of both storm water and non-storm water that originates in urbanized areas. When rain falls and snow melts, the runoff washes pollutants from the earth's surface directly into water bodies. Sources of Urban Runoff include precipitation, industry discharges, leaks, washing, irrigation, and natural springs.
runoff derived from urban or suburban land-uses that is distinguished from agricultural or industrial runoff sources.
surface water runoff from urban areas such as lawns, streets, parking lots and residential developments. Such runoff can pick up, transport, and deposit a variety of pollutants including oil, gasoline, pesticide and heavy metals.
Storm water from urban areas, which tends to contain heavy concentrations of pollutants from vehicles and industry.
Stormwater from urban areas, which tends to contain heavy concentrations of pollutants from urban activities
Storm water from city streets and gutters that usually contains a great deal of litter and organic and bacterial wastes into the sewer systems and receiving waters.
The portion of precipitation, snowmelt, or irrigation water that does not naturally percolate into the ground or evaporate, but runs off the land into streams or other surface water. It can carry pollutants from the air and land into the receiving waters. Wet pond: Pond for urban runoff management that is designed to detain urban runoff and always contains water.
Runoff generated from urban areas.
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.