Massive Fish Kill Reported on Chattahoochee River Following Atlanta Downpour
A significant fish die-off has been reported along a 20-mile stretch of the Chattahoochee River west of Atlanta, Georgia. According to Chattahoochee Riverkeeper, thousands of fish, including species such as spotted bass, catfish, and carp, were found dead following a severe thunderstorm that brought heavy rainfall to the Atlanta metro area on May 25, 2026. The storm dumped up to three inches of rain per hour, causing flash flooding and overwhelming the river's capacity to handle the influx of warm stormwater. The river, already running low due to prolonged drought, was unable to moderate the sudden increase in temperature and pollutants. Investigations by Chattahoochee Riverkeeper and the City of Atlanta’s Department of Watershed Management are ongoing, with preliminary findings suggesting that stormwater runoff, sewage discharge, and low river flow contributed to the event. 
