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A federal court granted approval (6 pp, 40.44 KB) of a consent decree (177 pp, 13.31 MB) in February 2017 between the federal and state governments and North Shore Gas. Under the agreement, NSG agrees to perform work related to the removal of the source of groundwater and soil contamination (i.e., free product) at the site. The cost of performing this work is estimated to be $10.5 million and will take about 8 years to complete. NSG also agrees to pay future response costs incurred by the United States and the State of Illinois in overseeing the work.

 On November 16, 2016, the Department of Justice (DOJ) had lodged the proposed consent decree with the United States District Court for the Northern District of Illinois in the lawsuit entitled United States and State of Illinois v. North Shore Gas Co., Civil Action No. 16-10672. The comment period was from November 23 to December 23, 2016. The consent decree resolves claims by the United States and the State of Illinois in the associated complaint under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) against the North Shore Gas Company (“NSG”) for response actions and future response costs relating to the NSG Former South Plant Manufactured Gas Plant (MGP) Superfund Alternative Site in Waukegan.

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