Stormwater
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Stormwater, also written storm water, is water that originates from precipitation, including heavy rain and meltwater from hail and snow. Stormwater can soak into the soil and become groundwater, be s
Urban runoff entering a storm drain
Urban runoff being discharged to coastal waters
Relationship between impervious surfaces and surface runoff
Gel flocculants in a passive mining treatment system
Surface runoff
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Surface runoff is the unconfined flow of water over the ground surface, in contrast to channel runoff. It occurs when excess rainwater, stormwater, meltwater, or other sources, can no longer sufficien
Stormwater
…infiltrate) and become groundwater, be stored on depressed land surface in ponds and puddles, evaporate back into the atmosphere, or contribute to surface runoff. Most runoff is conveyed directly as surface water to nearby streams, rivers or other large water bodies (wetlands, lakes and oceans) without treatment…
Runoff flowing into a stormwater drain
Surface runoff from a hillside after soil is saturated
Urban runoff flowing into a storm drain