Welcome to the State Water Resources Control Board Welcome to the California Environmental Protection Agency

Education and Public Outreach

POLLUTED RUNOFF (NPS) INFORMATION

Polluted runoff or nonpoint source (NPS) pollution is caused by rainfall or snowmelt moving over and through the ground picking up pollutants along its journey to lakes, rivers, wetlands, coastal waters, and even our underground sources of drinking water. Some of these pollutants are natural and others are man-made. With your help, we will work toward reducing these pollutants in our waterways.

Note: If you would like to search for information by Program or Topic, please view the Alphabetical Index.

 

(updated 8/17/05)