United States progress in remediating contaminated sediments in Great Lakes Areas of Concern
Keywords:
contaminated sediment remediation, Great Lakes Legacy ActAbstract
Starting in 1985, comprehensive Remedial Action Plans were initiated to restore impaired beneficial uses in Great Lakes Areas of Concern. These plans were a catalyst for developing programs to remediate contaminated sediments. In 1987, the U.S. Environmental Protection Agency implemented the Assessment and Remediation of Contaminated Sediment Program to: measure contaminant concentrations in sediments and their potential effects on aquatic life; evaluate risks to wildlife and human health; and test technologies that might be used to clean up these contaminated sediments. In 2002, the U.S. Great Lakes Legacy Act was signed into law with the intent to remediate contaminated sediments at Great Lakes Areas of Concern. Before Great Lakes Legacy Act, only limited progress had been made in addressing contaminated sediments, a major, intractable issue impacting 9 of the 14 listed beneficial use impairments in Areas of Concern. Between 2004 and 2017, Great Lakes stakeholders have completed a total of 46 contaminated sediment remediation projects in U.S. Areas of Concern, resulting in the remediation of over 6.6 million m3 of contaminated sediments at a cost of over $1 billion. Although much has been accomplished, more contaminated sediment remediation must be undertaken to fully restore Areas of Concern. The Great Lakes Legacy Act and Great Lakes Restoration Initiative have been essential components for completing this important remediation and restoration work in Areas of Concern that is resulting in significant economic and environmental benefits.
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