Stay Safe This Summer: Avoid Foam on Michigan Waterways

As the weather warms up, the Michigan Department of Health and Human Services (MDHHS) urges residents and visitors to avoid foam on Michigan’s lakes, rivers, and streams. Foam may look white or brown and gather in areas like dams, shorelines, or riverbanks. While some foam is natural, it can sometimes contain PFAS chemicals, bacteria, or harmful algae.

Touching foam can lead to accidentally swallowing chemicals or bacteria, especially if you don’t rinse off afterward. MDHHS recommends rinsing or bathing immediately after contact with foam or surface water—this helps protect you, your family, and your pets.

The Michigan Department of Agriculture and Rural Development (MDARD) also recommends keeping pets away from foam. Animals can ingest harmful substances when they groom themselves after contact.

What to Know:

• Avoid touching foam on water.
• Rinse off or bathe after water activities.
• Keep pets away from foam and rinse them if exposed.
• Some foam may contain high levels of PFAS linked to liver damage and high cholesterol.

Resources:

• FAQ: PFAS Foam on Lakes and Streams
• 2021 Surface Water Foam Study (PDF)
• MDHHS Environmental Health Hotline: 800-648-6942

Your health is no small matter. Stay informed and stay safe when enjoying Michigan waters!