Under the Great Lakes Restoration Initiative’s Legacy Act, the $24.6m project removed about 140,000 cubic yards of sediment contaminated with polychlorinated biphenyls and polycyclic aromatic hydrocarbons, or PCBs and PAHs.
The contamination led to limits on eating fish caught in the river, as well as loss of habitat and other environmental problems.
The project received about $16m in funds from GLRI Legacy Act, about $8.6 from WDNR.
The Great Lakes provide 30 million Americans with drinking water and underpin a multi-billion dollar economy.
The EPA Administrator senior advisor Cameron Davis said the work by state, county, city and other partners over the years has helped deliver real results under the Great Lakes Restoration Initiative.
"Thousands of cubic yards of harmful contaminated sediment were removed to help boost human, ecological and local economic health," Davis said.
