What is stormwater runoff?
Stormwater runoff occurs when precipitation from rain or snowmelt flows over ground. Impervious surfaces like driveways, sidewalks, and streets prevent stormwater from naturally soaking into the ground.

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1. What is stormwater runoff?
2. Why is stormwater runoff a problem?
3. Where does my stormwater go?
4. Who do I call if I see anyone illegally dumping into the storm drain?
5. What can I do to help?
6. What type of pollutants are found in stormwater?