American, America's, Duwamish River, EPA, Elliott Bay, North America, Northwest, Pacific Northwest, Port of Seattle, Puget Sound, Seattle, Super Fund Site, USA, Washington, Washington State, West coast, area, clean up, environment, environmental, habitat restoration, harbor, harbors, industrial, maritime, mitigation, park, parks, pollute, pollution, port, ports, restoration, restoring, river, rivers, site, toxic, trade, waterfronts