Healthy Bay Beaches

Swimming in the Bay
San Francisco Bay waters have something for everyone. Whatever your passion, it’s important to know about Bay water quality before heading out to the beach. Remember that the water is tested for contaminants at nearly every Bay swimming beach. If you’re still unsure about water quality, use the following guidelines.

  • Look for warning signs.
  • Avoid the water during rainstorms and for three days after the rain.
  • Always avoid swimming in front of visible storm drain outfall pipes.


In 2004, Save The Bay sponsored a Healthy Bay Beaches law (AB1876), requiring Bay beach water quality monitoring to meet stringent state guidelines. When high bacteria levels are detected, warning signs must be posted on the beaches.

Learn More
Beach Water Quality FAQ

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