Report Illegal Disposal
into Storm Drains to:
(800) 506-2555

The Watershed Protection Division is responsible for coordinating and assisting the County of Riverside and Cities in implementing the stormwater compliance programs and other responsibilities required by the National Pollutant Discharge Elimination System (NPDES) permits issued by the California Regional Water Quality Control Boards (RWQCBs) within the Santa Ana River, Santa Margarita River, and Whitewater River Regions.

This section oversees the program management of the Santa Ana and Whitewater Permit Regions as well as supporting the Cities and County of Riverside in investigations for any illicit connections/illegal discharges found throughout Riverside County. If you have any questions contact:

This section oversees the program management of the Santa Margarita Permit Region as well as the LID demonstration facility management and sampling duties. LID facility tours are available upon request. If you have any questions contact:

This Section oversees the implementation and coordination of the compliance monitoring programs, special studies, and regional monitoring collaborations (e.g., Southern California Stormwater Monitoring Coalition) on behalf of the Riverside County Permittees. If you have any questions contact:

The District oversees the Public Education program on behalf of all the Riverside County Permittees in the three watershed regions. Any Public Education material requests from Permittees may be directed to: