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Date: 2008-04-21 17:39:29Environment of Canada Environment of the United States Great Lakes Areas of Concern Water supply and sanitation in the United States Environmental remediation Torch Lake Great Lakes Lake Superior Calumet River United States Geography of Canada Canada–United States border | Lake Superior 2008 UpdateAdd to Reading ListSource URL: epa.govDownload Document from Source WebsiteFile Size: 1,47 MBShare Document on Facebook |