TOPEKA ? Topeka’s water department is monitoring the Kansas River for E. coli after a weekend sewage spill.

The city of Topeka says the sanitary sewer bypass pumping station went down over the weekend, discharging waste into the river. The Topeka Capital Journal reports most of the sewage spilled into the Kansas River overnight Sunday. It’s unclear how much sewage spilled or what caused the failure.

The city’s Water Pollution Control Division is monitoring the Kansas River for E. coli concentrations, and will continue to monitor the water until counts show normal levels.

The city says the Kansas Department of Health and Environment, and the Lawrence, Olathe, and WaterOne Utility water treatment plants were notified Monday of the breach.

Jeanette Klamm, a spokeswoman with Lawrence’s department of utilities, said operators at the city’s Kaw Water Treatment plant were made aware of the sewage spill shortly after it occured. She said the plant has not needed to make any adjustments to its treatment levels, and that Lawrence’s water supply remains unaffected by the spill.

“We haven’t seen any indications that it has made it this far down the river, nor do we expect it to,” Klamm said Tuesday afternoon.