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Steer clear. Rinse off. When in doubt, stay out!

Don’t Get Sick Avoid the ick

Habs on water surface
algae blooms on the water surface algae blooms on the water surface algae blooms on the water surface algae blooms on the water surface

Blue-green algae can produce toxins that make people and animals sick.

Harmful algal blooms (HABs) happen when algae grows out of control, producing toxins that can harm people, pets, fish and wildlife.

HABs can make you sick through contact or swallowing water. If you see discolored, scummy, or foul-smelling water, stay out and keep pets away.

HABs can come in a variety of different shapes and colors or green – blue.

Steer clear. Rinse off. When in doubt, stay out.

If you would like to report an observed bloom, please click HERE to go to the WI DNR Blue-Green Algae information page and report a bloom.

If you or your pets have sudden illness or signs of poisoning following exposure, please call your doctor or veterinarian, or the Wisconsin Poison Center at 800-222-1222.

How can you help protect our waters? #LoveYourWatershed by:

  • Picking up garbage and pet waste
  • Planting a rain garden or using rain barrels
  • Keeping grass clippings and leaves out of storm drains
  • See more options HERE

Helpful Resources

Important Links

Wisconsin Department of Health Services

Wisconsin Department of Natural Resources

National Oceanic and Atmospheric Administration

United States Environmental Protection Agency

U.S. Centers for Disease Control and Prevention

Become a Champion! HABs Awareness Toolkit

Help spread the word, become a champion! Download this suite of graphics (social media, posters, caution signs) to help spread the message. Fill out this form to receive all graphics free of charge, for your use! Please note poster and sign are available in some additional languages upon request.

Download Promotional Items