The Department of Natural Resources is reporting several wastewater releases by Iowa cities.
The largest was Tuesday morning in Cedar Falls, where an electrical problem caused pumps to fail, causing several thousand gallons of untreated wastewater to back up at the downtown treatment plant, then flow onto nearby ground. The water reached a bike path.
Workers took about a half hour to fix the problem. They then cleaned up the area.
In Dubuque, a pipe broke Wednesday afternoon, causing about 200 gallons of wastewater to flow into Catfish Creek before the city could stop the release.
In Cresco, about 500 gallons of untreated wastewater flowed into a creek Monday night. City and DNR officials are investigating the cause of the release but a surge of rainwater could be a factor.