photo of stormwater runoff
Untreated stormwater entering a storm drain.

Precipitation that falls on impervious surfaces, such as streets, drains to storm sewers and eventually to lakes and rivers. Pollutants such as sediment and phosphorus are carried with the runoff water. Management of stormwater runoff entails intercepting and treating the runoff water.

This page provides general information on stormwater. The following articles are primarily written for non-stormwater professionals. Most pages have numerous links and images to illustrate basic concepts.

Stormwater for non-technical audiences

Stormwater treatment practices for non-technical audiences

This page was last edited on 26 January 2023, at 10:24.