Managing Algal Toxins in Recreational Waters

HABs threaten the recreational use of waterbodies and increase risks to wildlife, pets, livestock, and human health. As a result, the EPA has compiled and/or developed materials for reducing risks associated with HAB recreational exposure. These include how to visually identify signs and confirm cyanobacterial blooms in surface waters; how to protect human health using recreational water quality criteria or swimming advisories; and recommendations, examples, and templates for developing Emergency Response Plans for cyanotoxins. The EPA has also designed tools and materials to support effective risk communication by states, Tribes, territories and local governments to their communities.

This information is intended for recreational waterbody managers, which may include public health officials, lake managers, or other state, local or Tribal officials, involved in monitoring water quality and protecting the health of people and animals that use waterbodies within their jurisdiction.

• Visually Identifying Signs of a Cyanobacterial Bloom
• Protecting Human Health from Cyanotoxin Exposure During Recreation
• Developing an Emergency Response Plan for Cyanotoxins 
• Communicating about Cyanobacterial Blooms and Toxins in Recreational Waters

DISCLAIMER: This information does not impose legally binding requirements on EPA, states, Tribes, or the public, nor does it confer legal rights. It does not constitute a regulation, nor does it change or substitute for any Clean Water Act provision or EPA regulation. Any mention of trade names, products, or services does not convey and should not be interpreted as conveying official EPA approval, endorsement, or recommendation for use.