California Regional Swim Guide Map
The data collected and displayed by the Swim Guide is of varying quality and should only be used as an information tool and not for regulatory or enforcement purposes.
Beach water quality monitoring and strong pollution prevention measures are critical for protecting beach goers from waterborne diseases. Monitoring is performed by city and county health agencies, publicly owned sewage treatment plants, other dischargers, environmental groups and numerous citizen-monitoring groups.
Questions Answered
- Can I swim at my coastal beach?
- What are the current swimming advisories for my coastal beach?
- How do harmful algal blooms affect swimming safety?
- What are the long-term trends of bacteria at my coastal beach?
- Which beaches, lakes, and streams are listed by the State as impaired for swimming?
- How are we improving swimming safety?