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Storm Water Program

Storm Water Program

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Storm water is defined by US EPA as the runoff generated when precipitation from rain and snowmelt events flows over land or impervious surfaces without percolating into the ground. Storm water is often considered a nuisance because it mobilizes pollutants such as motor oil and trash. In most cases, storm water flows directly to water bodies through sewer systems, contributing a major source of pollution to rivers, lakes, and the ocean. Storm water discharges in California are regulated through National Pollutant Discharge Elimination System (NPDES) permits. However, storm water may also act as a resource and recharge to groundwater when properly managed. The Water Boards are actively involved in initiatives to improve the management of storm water as a resource. For more information read our Storm Water Management Fact Sheet


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Electronic Reporting

Contact Information

To sign up for Storm Water Industrial Permit updates email subscription list please use the link below, then select "Water Quality" and check the box for "Storm Water Industrial Permitting Issues", type in your name and email and click subscribe.

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General Storm Water Questions:
Email: stormwater@waterboards.ca.gov
Phone: 1-866-563-3107 (Monday - Friday from 8:00 AM-5:00 PM)

State and Regional Water Quality Control Board Contacts

Report a Storm Water Violation