Active Alerts

Flood and high wind watch for San Francisco. 

For your safety, avoid driving or walking through standing water at all cost.
Please be cautious of manhole covers that may have been dislodged. Report dislodged manhole covers to @SF311. 

Emergency Operations Center (EOC) Activated

The City has activated the Emergency Operations Center (EOC) to coordinate citywide operations, such as clearing storm drains, responding to hill slides, distributing sandbags, and ensuring residents are informed.
Report non-life-threating storm issues to 311, such as:

  • Clogged catch basins
  • Non-life-threatening street and residential flooding
  • Sewer backups or wastewater odors
  • Downed trees

Read more about what to do before and during the storm.

Stay safe and avoid unnecessary travel.

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Water Quality

We are dedicated to protecting and maintaining your water quality.

Our water system is fortunate to have some of the best water in the U.S. Our major water source is the well-protected Tuolumne Watershed, where spring snowmelt flows from the Tuolumne River into Hetch Hetchy Reservoir. We rigorously protect and test the quality of your water to ensure that it meets or exceeds all federal and state standards for health.