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What is storm water?

April 26, 2017storm water

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What is storm water?

4 Answers

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Storm water is the surface runoff of rain and snow melt. In undeveloped areas, such as forests and grassy areas, the surface flow of water is slowed by vegetation, allowing much of it to seep into the ground. Developed areas reduce this natural seepage by covering the area with building and impervious surfaces such as parking lots, decreasing the surface area of soil and vegetation. This results in increased amounts and faster flows of storm water runoff. Storm water drainage systems become necessary to prevent flooding.

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Storm water is rain water that runs off impervious surfaces such as streets, driveways, parking lots, rooftops, or other tightly packed surfaces. Impervious surfaces reduce the ability of storm water to be absorbed or infiltrate into the ground.

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Storm water is water from precipitation that flows across the pavement when it rains, then drains into storm sewers found at street corners or the low points on the sides of city streets. Unlike the water that we use in our homes, storm water receives no treatment.

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Storm water is the rainfall or snowmelt that flows over our yards, streets, parking lots, and buildings and either enters the storm drain system or runs directly into a lake or stream.