FLINT, MI -- The city dumped an estimated 2 million gallons of untreated sewage into the Flint River Sunday, Aug. 18, just months after officials warned wastewater infrastructure was fast approaching a “critical point.”

A partial report filed by the city with the state Department of Environment, Great Lakes and Energy on Tuesday, Aug. 20, says a “flash flood event” overflowed primary settling tanks at the city’s wastewater treatment plant on Beecher Road, sending raw waste onto the ground and into a storm sewer drain that discharges directly to the river.