San Francisco Beach Water Quality
NOTE: From August 15th to August 27th, SFPUC is performing ongoing maintenance work affecting the Creek which may re-suspend sediments at the bottom of the Channel that may contain naturally occurring bacteria and other pollutants. The SFPUC and San Francisco Department of Health are advising against water contact recreation in and around the Islais Channel during this time as a precautionary matter.
The beach monitoring program is a cooperative effort between the San Francisco Public Utilities Commission and the San Francisco Department of Public Health. Samples are collected weekly year-round. Additional monitoring is conducted whenever a treated discharge from the City’s Combined sewer system occurs that affects a monitored beach. READ MORE about the combined sewer system and a detailed explanation of the Beach Monitoring Program.
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Water quality meets State of California bacteria standards for water contact recreation.![Beach Posted icon]()
Concentrations of bacteria were elevated at this location within the past 24 hours or a combined sewer discharge has recently occurred at this site.![Data N/A icon]()
This location is not sampled. No data is available at this time.![Data N/A icon]()
This location is not routinely sampled. No data is available at this time.![CSO icon]()
Combined Sewer Discharge has occurred within the last 24-72 hours. (Call 1-877-SFBEACH or 1-877-732-3224 for details)
Water quality meets State of California bacteria standards for water contact recreation.
Concentrations of bacteria were elevated at this location within the past 24 hours or a combined sewer discharge has recently occurred at this site.
This location is not sampled. No data is available at this time.
This location is not routinely sampled. No data is available at this time.
Combined Sewer Discharge has occurred within the last 24-72 hours. (Call 1-877-SFBEACH or 1-877-732-3224 for details)