Where do I call when there is a clogged storm drain or sanitary sewer line?
Category:
Sewer Overflow
For emergency sewer problems during normal business hours (Monday - Friday, 8:00am - 5:00pm), please call Public Works at (650) 522-7300.
For more information: https://www.cityofsanmateo.org/faq.aspx?TID=24
Updated 12/31/2025 12:04 PM