An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Polluted Runoff: Nonpoint Source (NPS) Pollution

Nonpoint Source Pollution Awareness: What's Wrong with This Picture?

The people below are taking care of their home and car, but they are doing many things that can damage the environment, especially our water.

Click on the places where you think someone's activities might be harming the environment and find out if you are right.

Picture depicting various nonpoint source pollution examplesProblem 1Problem 2Problem 3Problem 4Problem 5Problem 6Problem 7