Flood fallout: Health department warns inspect wells, test drinking water

April 18, 2026 - 00:21

Health officials across northern Michigan are issuing an urgent advisory for residents with private wells following recent widespread flooding. The rapid rise of water can compromise well systems, allowing dangerous contaminants and bacteria to enter drinking water supplies.

The primary concern is that floodwaters, which often contain runoff from agricultural fields, septic systems, and other sources, can seep into well casings or submerge wellheads. This introduces pathogens like E. coli, which pose immediate health risks including gastrointestinal illness. Residents are strongly cautioned against assuming their water is safe based on taste or appearance alone.

The recommended course of action is to first inspect the well for any visible damage or signs of inundation. If flooding has occurred, or if there is any doubt, the water should not be used for drinking, cooking, or brushing teeth until it has been tested. Homeowners should contact their local health department for guidance on proper disinfection procedures and to obtain a water testing kit. Using bottled water or boiling all water vigorously for at least one minute are essential temporary measures until test results confirm the water's safety. Protecting public health in the aftermath of severe weather requires this critical vigilance.