Out of an abundance of caution, the Kent County Health Department (KCHD) and the Michigan Department of Health and Human Services (MDHHS) are recommending that people using the Thornapple River avoid swallowing foam floating on the water.
This advisory is being issued after the MDHHS and KCHD received test results from the Michigan Department of Environmental Quality on June 29, 2018. Samples taken immediately downstream of the Cascade Dam on June 6, 2018 reveal total PFAS amounts of 316.97 parts per trillion (ppt) with PFOA at 2.41 ppt and PFOS at 197 ppt.
Because of these high levels of PFAS, MDHHS and KCHD have concluded that swallowing the foam may pose a human health risk. Therefore, the two agencies are advising people to take precautions against swallowing the foam while using the river recreationally. Current science suggests PFAS do not easily enter through the skin and would not pose a risk to human health.
More information about the results can be found here.
Residents who have health questions for MDHHS can call (800) 648-6742.
Residents who have questions about the environmental investigation can contact MDEQ at (800) 662-9278.
Reporters who have questions about the test results can contact MDEQ (517) 284-9278.