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Cleanup gives new life to Minnesota waterway
|Project Summary: Fish and wildlife have returned to a Minnesota waterway that for decades was one of the worst pollution sites in the Great Lakes.|
Project name: Stryker Bay cleanup.
Location: Duluth Harbor in Duluth, Minn.
Description: Stryker Bay is a 41-acre bay in Duluth Harbor, where
the St. Louis River enters Lake Superior. From the late 1800s through the 1960s, tar and coke factories, meatpacking plants and other heavy industry
ringed Duluth Harbor. Those factories discharged a massive toxic stew into the harbor, much of which settled in sediment at the bottom of Stryker Bay. Officials at the Minnesota Pollution Control Agency began working on a cleanup in 1979, and the site was placed on the federal Superfund list in 1983. The dredging of contaminated sediments began in 2006 and was completed in 2010. The project removed about 200,000 cubic yards of toxic mud from the bottom of the bay; another 175,000 acres of contaminated sediment were left in the bay and capped with a layer of clean sand and a carbon mat designed to permanently isolate the contaminants from the waters of Duluth Harbor. The project also created about 13 acres of green space by capping two former industrial boat slips that were severely polluted. That green space provided habitat for migratory birds and endangered piping plovers.
Approximate cost of project: $62 million.
Resource challenges addressed: Contaminated sediments, impaired water quality and loss of fish and wildlife habitat.
Key partners (public and private): U.S. Environmental Protection Agency’s Superfund program, Minnesota Pollution Control Agency, St. Louis River Alliance. Three companies that were deemed responsible for polluting the bay — XIK (the successor of Interlake), Honeywell Inc. and domtar Inc.— funded most of the cleanup.
Types of jobs created: Chemists, toxicologists, biologists, ecologists, dredge operators, heavy equipment operators, wastewater treatment plant operators and general laborers.
Results and accomplishments: Fish and wildlife have returned to the bay and it is now safe to swim in the water. In 2013, the city of Duluth received a $303,787 grant to clean up a 6.65-acre parcel of land adjacent to Stryker Bay. The site will be redeveloped into a 7,200 square foot building that will house an office, warehouse and fabrication shop for a local manufacturer.
Web site: http://bit.ly/11AGxVs
Originally Published: April 30, 2013