California Integrated Water Quality System Project (CIWQS)

Sanitary Sewer Overflows (SSOs) Reports

Sanitary sewer system agencies covered under Statewide General Waste Discharge Requirements for Sanitary Sewer Systems (WQO No. 2006-0003-DWQ), referred to as Enrollees, are required to report all SSOs for which their agency has responsibility into the State Water Resources Control Board’s SSO database.

Statewide Reported Sewer Spills