Wastewater Collection Corner — Know Your Utilities

Water Issues? Who Should You Call? If you notice water running down your street but aren’t sure where it’s coming from, the diagram below can help you call the right agency.

Street with labeled covers: water main valve, sewer manhole, and storm drain.
  • If you suspect a sewer issue, call Oro Loma immediately at (510) 276-4700. We have staff available 24 hours a day, 7 days a week to handle emergencies.
  • If the water is coming from a broken water main valve, contact EBMUD at 866-403-2683.
  • If the issue is a clogged storm drain (or fl ooding during a storm), contact Alameda County at 510-670-5480.

If you’re not sure, call Oro Loma right away. The District has a crew on hand 24/7 to handle emergencies, but the problem may have nothing to do with the sewer. The water may be coming from a water main valve (call EBMUD at 866-403-2683) or a clogged storm drain (call Alameda County Public Works at 510-670-5480).

Act quickly to address the issue and prevent further damage.

Join our mailing list