Sewer

Are you experiencing a sewer backup or flood emergency?

There are two numbers for you to call in an emergency, depending on when you call.

  • (650) 802-4140 to reach Public Works between 7 a.m. and 3:30 p.m., Monday-Friday.
  • (650) 802-4321 to reach Police Dispatch after business hours and on weekends and holidays when City Hall is closed. 

A Public Works crew will be sent out as soon as possible in response to your emergency.

Sewer System

The City owns and operates a wastewater collection system consisting of over 105 miles of sewer pipelines and six sewer pump stations. Wastewater is conveyed from the city to the Silicon Valley Clean Water (SVCW) treatment facility in Redwood Shores. Learn more about SVCW here.

SVCW is a regional wastewater treatment plant jointly owned by San Carlos, Belmont, Redwood City and the West Bay Sanitary District, for treatment and subsequent discharge into the San Francisco Bay. A small percentage of SVCW’s wastewater is treated to higher levels and used as recycled water by Redwood City. In addition to serving San Carlos customers, we also convey wastewater from four small neighboring county-operated sewer maintenance districts to the regional wastewater treatment plant.