Washington State University
Environmental Health & Safety Stormwater Management at WSU Pullman

What is Stormwater and Why Is It Regulated?

As precipitation (rain, snow, etc.) flows across impermeable surfaces (streets, parking lots, etc.) it flushes vehicle fluids, trash, pet waste, fertilizers and pesticides, cleaners and other pollutants into storm drains and catch basins.  Then without treatment, this contaminated stormwater flows directly into local rivers and creeks.
Picture of stormwater outfall
The EPA has determined that stormwater in urban areas is the leading cause of surface water pollution (rivers, lakes, oceans). As a result, Federal and State regulations only allow stormwater to be discharged to stormwater systems.

WSU Stormwater System

Storm drains and catch basins are located throughout the WSU campus to collect and remove excess stormwater runoff from parking lots and roadways during wet weather.


The University is responsible for planning, operating, monitoring, maintaining, and protecting the stormwater system at the Pullman campus.


The goal of the University’s stormwater management program is to ensure that stormwater generated on University property does not adversely impact surface and ground water. This WebSite is intended to assist the WSU community in understanding how the University’s stormwater system operates, what the law requires, and what you can do to reduce contamination of stormwater.

Report Illicit Discharges and Spills

An illicit Discharge is anything other than stormwater that enters the storm water system.
Catch Basin Label
Report illicit discharges and spills to the Spill Hotline.

Stormwater Awareness Survey

Please help us benchmark our stormwater awareness campaign by answering a quick survey on stormwater.

Contact Information

The WSU Stormwater Management Program is overseen by the Stormwater Committee which is comprised of representatives from EH&S, Facilities Operations, Capital Planning and Development, and Housing and Dining Services. If you have any comments, concerns or questions please contact EH&S.