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Date: 2011-04-01 09:00:12Canada–United States border Erie Canal Great Lakes Waterway Lake Erie Saint Lawrence Seaway Erie Pennsylvania Erie Polychlorinated biphenyl Water quality Environment Pollution Great Lakes | 12 Photo: John Cooper Summary and ConclusionsAdd to Reading ListSource URL: epa.govDownload Document from Source WebsiteFile Size: 167,82 KBShare Document on Facebook |