What is storm water and urban runoff?

Storm water is a specific term referring to water generated from rain. Urban runoff is a more general term referring to storm water runoff generated from rain that flows over land or impervious surfaces, such as paved streets, parking lots, and building rooftops, and does not soak into the ground. Urban runoff also refers to all other water that originates from urbanized areas such as industrial discharges, irrigation water, leaks and spills, and wash water. These are commonly known as “non-storm water discharges.” This runoff picks up pollutants like trash, chemicals, oils, and dirt/sediment that can harm our lagoons and the Pacific Ocean.

Show All Answers

1. What is a watershed?
2. What is storm water and urban runoff?
3. How does over irrigation impact water quality?
4. What causes beach closure signs to be posted?
5. Can I hose down my sidewalks and driveways?
6. Can I wash my car at home?
7. Can I drain my swimming pool/spa water?
8. What do I do with oil and other automobile fluids?
9. Do I need to worry about small home improvement projects?
10. What else I can do to help water quality?