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United States Environmental Protection Agency
Great Lakes Legacy Act
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Authorized Legacy Act Project Site

Ruddiman Creek/Pond Project

An aerial view of the area where contaminated sediment will be removed from Ruddiman Creek and Ruddiman Pond
This is an aerial view of the area where contaminated sediment will be removed from Ruddiman Creek and Ruddiman Pond.

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Ruddiman Creek and Ruddiman Pond are part of the designated Muskegon Lake “Areas of Concern” or AOC. Contaminants are present at high enough concentrations that they can affect human health, wildlife and aquatic life. Currently the main branch of Ruddiman Creek is posted as a no swimming, fishing or recreation area due in part to contaminated sediment. EPA and Michigan DEQ, in partnership with a local public advisory council, have developed a contaminated sediment removal and site cleanup project for the creek and the pond. The project got underway in August of 2005.

The $10.6 million project is expected to take about nine months to remove about 80,000 cubic yards of contaminated sediment (mud). Under the Great Lakes Legacy Act of 2002, $6.9 million or 65 percent of cleanup costs are paid for with federal funds. The other 35 percent or $3.7 million must be non-federal, in this instance funds from the state’s Clean Michigan Initiative.

The main contaminants of concern include cadmium, found in the sediment with a maximum level of 25 parts per million; chromium, found at 5,900 ppm; polychorinated biphenyls, usually called PCBs, found at 6 ppm; and lead, found at 1,200 ppm. This project will remove a substantial amount of these contaminants: an estimated 2,800 pounds of cadmium, 320 pounds of PCBs, 204,000 pounds of chromium and 126,000 pounds of lead.


How much contaminated sediment has been dredged from
Ruddiman Creek and Pond?
Graph plots showing swift progress of contaminated sediments removal from Ruddiman Creek and Pond on a weekly basis

This graph plots the swift progress of contaminated sediment removal from Ruddiman Creek and Pond on a weekly basis. Each bar is the estimate of the amount of sediment removed during that week added to the amount removed in the previous weeks. Approximately 90,000 cubic yards of contaminated sediment were removed from the site (cubic yard = think about a square box that is 3 feet on each side). All sediments were treated at the site with a drying agent to remove water and then trucked to a nearby landfill. The last of the dredging was completed in early May 2006. 


 
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