Officials are warning metro Atlanta residents to avoid swimming and recreational water activities in parts of the Chattahoochee River after E. coli levels surged to more than 17 times the EPA’s recommended safety threshold following several days of heavy rain. According to WSB-TV meteorologist Brad Nitz, bacteria levels in some areas climbed above 4,000, while the Environmental Protection Agency considers anything over 235 to be a high infection risk for swimmers.
Experts say the spike was likely caused by storm runoff washing contaminants, pet waste, and sewage-related bacteria into the river system. The Chattahoochee Riverkeeper and U.S. Geological Survey both note that E. coli levels commonly increase after major rain events, especially during warmer months and periods of flooding. Officials are encouraging residents planning to kayak, tube, swim, or “shoot the Hooch” to check water quality conditions before entering the river.
The warning has sparked concern across metro Atlanta, with many residents on social media calling for stronger water infrastructure protections and environmental oversight. Public health experts say exposure to contaminated water can lead to illnesses involving the stomach, skin, eyes, and respiratory system, particularly for children and people with weakened immune systems. Authorities say river conditions will continue to be monitored closely until bacteria levels return to safer ranges.
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