Clinton and Cedar Falls both accidentally discharged waste into nearby rivers yesterday.

The Quad-City Times reports:

The city of Clinton has discharged about 100,000 gallons of untreated wastewater into the Mississippi River.

The state Department of Natural Resources told KCRG-TV that the city discharged the sewage while repairs were made Friday to a 65-foot section of pipe.

The sewage was expected to dissipate in the river within a day.

Meanwhile, the city of Cedar Falls planned to send sewage into the Cedar River starting Sunday and continuing through Wednesday.

KWWL-TV reports the city says the wastewater will go through 60 percent of the treatment process before being released. The discharge is needed to repair a leaky pipe discovered about two weeks ago.

The impact on the river is expected to be minimal.