Storm Water | Region 10 | US EPA

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Storm Water

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Stormwater is generated as a result of precipitation, melting snowfall, and runoff from over-watering. In general, there are two types of pollution that can enter a waterway: non-point source pollution and point source pollution. EPA classifies stormwater running off of impervious surfaces, such as parking lots, roads, and buildings as point-source pollution.

Program Highlights

Permitting Discharges to Groundwater

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URL: http://yosemite.epa.gov/R10/WATER.NSF/Stormwater/home

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