City officials on Wednesday submitted documents to the state's natural resources agency, prompting another dredging of Newport Harbor within the next year.
Harbor Resources Manager Chris Miller said he submitted applications to take sediment from the Rhine Channel, some of it clean and some toxic, to the Port of Long Beach's expansion project and the rest to a dumping site offshore.
The city could begin dredging the channel by the beginning of 2011, Miller said.
Dredging the Rhine Channel would be the harbor's third dredging in recent years. Currently, the Upper Bay is being dredged of 2.1 million cubic yards to help restore the ecosystem there.