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El Segundo City Hall reopened Monday, July 6th at 7 a.m. with safety precautions in place. Click here for City Hall phone numbers, emails, appointment requests or here for daily info and resources. 

To report an illicit discharge or spill into a storm drain, or to report clogged catch basins:

  • During business hours, call the Wastewater Division at 310-524-2754
  • During non-business hours, call the Watch Commander at 310-524-2255
  • Or report online here if it is not currently occurring


The City is responsible for maintaining  storm drains and catch basins City-wide, including maintaining the County’s catch basins within City limits.  The City regularly cleans out the catch basins to prevent trash, debris, and pollutants from entering our waterways.

El Segundo is located in the Dominguez Channel and the Santa Monica Bay watersheds.  The Engineering Division is responsible for ensuring compliance with the Los Angeles RWQCB MS4 permit (Order No. R4-2012-0175, NPDES No. CAS004001).  This includes providing information to the community on keeping our waterways clean, in addition to monitoring, inspecting, and reporting on stormwater activities.  

Residential Stormwater Pollution Prevention
Industrial and Commercial Stormwater Program
Planning and Land Development Program