Boston did not receive a clean water act waiver from the Environmental Protection Agency, leaving Boston with little incentive to increase water quality of the harbor. Since the mid-1970s organizations within the Boston community have battled for a cleaner Boston Harbor. More recently, the harbor was the site of the $4.5 billion Boston Harbor Project. Failures at the Nut Island sewage treatment plant in Quincy and the companion Deer Island plant adjacent to Winthrop had far-reaching environmental and political effects.
Information Link: https://en.wikipedia.org/wiki/Boston_Harbor
Image Link: http://www.mami-eggroll.com/2015/05/boston-harbor-sunset-cruise.html