Danger in the water?
This week’s story suggests checking CA’s algal map for harmful bloom incidents before heading to local rivers or lakes. Caused in part by climate change, harmful algal blooms can make you sick and even kill your family dog.

May 27, 2026
Notice | Program Page
Remote Meeting - Information on how to participate in State Water Board meetings remotely
This week’s story suggests checking CA’s algal map for harmful bloom incidents before heading to local rivers or lakes. Caused in part by climate change, harmful algal blooms can make you sick and even kill your family dog.


Leaking fuel and hazardous waste can pollute our water systems. Single-walled storage tanks must close by January 1, 2026.
99% of these tanks are now closed.
85% of Californians depend on groundwater for all or part of their water needs.
Faster, lower-cost, 5-year permits allow California to store more water underground for future droughts.

The California Water Boards provides Language Access services in any language at no cost to you.
To request these services, or file a complaint, click on the button below to open the language access form.
The form is available in English, Español (Spanish), Tagalog, 中文 (Simplified Chinese), 한국인 (Korean), Tiếng Việt (Vietnamese), ਪੰਜਾਬੀ (Punjabi).
Visit Our New Student Programs page.
Learn More
Visit Our New Employment Homepage.
Learn More
The State Water Board is developing and implementing new regulatory programs to address potential water quality and quantity issues related to cannabis cultivation.
Learn More
Water is a precious resource in California, and maintaining its quality is of utmost importance to safeguard the health of the public and the environment.