Prospect Heights is asking residents to help keep local streams clean by preventing yard waste, lawn ornaments, children's toys and general debris from floating downstream.
"It's the responsibility of people whose property abuts the stream," said Steve Cutaia, the city's director of public works. "Keeping them clear benefits everybody."
Republic Services will remove branches free if they are bundled and set out, Cutaia said. It is illegal to throw yard waste by a stream, he added.