Harmful Algal Blooms Press Release

While there are all kinds of water safety issues to be aware of, the State Water Resources Control Board wants the public to know about one that may not be so obvious, freshwater harmful algal blooms or HABs.

As California confronts the realities of climate change, HABs have become increasingly common in rivers, lakes and reservoirs, and they can be especially dangerous to children and pets.Get medical treatment immediately if you think that you, your pet, or livestock has gotten sick after going in the water. Be sure to alert the medical professional to the possible contact with cyanobacteria. Also, make sure to contact the local county public health department.

For more information about HABs, please visit:

California Cyanobacteria and Harmful Algal Bloom (CCHAB) Network: https://mywaterquality.ca.gov/monitoring_council/cyanohab_network/index.html

California Department of Public Health Resource Page https://www.cdph.ca.gov/Programs/CCDPHP/DEODC/EHIB/EAS/Pages/HABs.aspx

PDF icon Harmful Algal Blooms Press Release121.99 KB