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Ottawa River

The Ottawa River 2010 cleanup removed approximately 250,000 cubic yards (CY) of contaminated sediments in the upper reaches of the lower 9 miles of the river around Suder Ave bridge to Upton Ave bridge. The lower 3 miles were not dredged but monitored for natural recovery to support the removal of Beneficial Use Impairments. The main contaminants were polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), heavy metals (primarily lead), and oil and grease.

Project Location:

The Ottawa River cleanup was divided into four reaches. Reach 1 being the most downstream reach, extending from the mouth of the Ottawa River to approximately river mile 3.5. Reaches 2, 3, and 4 extending, approximately, from river miles 3.5 to 9.

Project Benefits:

  • Reduce or remove impairments negatively affected aquatic communities.
  • Improve overall environmental health and usability of this area.

Project Objectives:

  • Remove contaminated sediments from approximately 6 miles of the Ottawa River. Improve water quality, habitat, and biological communities.
  • Remove contact and consumption advisories
  • Encourage economic redevelopment and reuse of the area.

Project Links:

Project Partners:

U.S. EPA and the Ottawa River Group (comprised of seven industries & the city of Toledo) worked with community partners and other federal, state, and local governmental agencies to evaluate and cleanup contaminated sediments utilizing the Great Lakes Legacy Act (GLLA) and other non-federal funding.


This publication was financed in part through a grant from the Ohio Environmental Protection Agency with funds from the Great Lakes Restoration Initiative. The contents and views contained within are those of the authors and have not been subject to any Ohio EPA review and may not necessarily reflect the views of the Ohio EPA or U.S. Environmental Protection Agency and no official endorsement should be inferred.

The Maumee AOC Committee works toward fishable and swimmable waters in the Maumee Area of Concern and delisting the beneficial use impairments. The Committee is working towards all major restoration projects being completed by 2025, through collaboration of partners and volunteer opportunities by its facilitating organization, Partners for Clean Streams. The committee is made up of representatives from various organizations, citizens, businesses and non-government agencies to build long term solutions to the area’s water quality issues.