Approximately 1 million gallons of wastewater overflowed into the San Marcos River early Thursday morning following a generator failure, the City of San Marcos announced Friday.
The city said the generator failure occurred at its main wastewater lift station — located near River Road and the Interstate 35 frontage road.— which moves sewage to the treatment plant.
According to the city’s monitoring system, approximately 1 million gallons of untreated wastewater overflowed into the river. The city said the overflow happened near the piping ear next to the river.
City crews fixed the problem Thursday afternoon. As of publication, the city said the lift station and wastewater treatment plant are operating normally.







