04/01/2013
Deer Island is a peninsula in Boston Harbor, Massachusetts. Since 1996 it is part of the Boston Harbor Islands National Recreation Area. Although still an island by name, Deer Island has been connected to the mainland since the former Shirley Gut channel, which once separated the island from the town of Winthrop, was filled in by the New England Hurricane of 1938. Today Deer Island is best known as the location of the Deer Island Waste Water Treatment Plant, whose 150-foot-tall (46 m) egg-like sludge digesters are major harbor landmarks. Deer Island - Wastewater treatment plant. The island has a permanent size of 185 acres, plus an intertidal zone of a further 80 acres. Two-thirds of the island's area is taken up with the waste water plant, which treats sewage from 43 nearby cities and towns and is the second largest such plant in the United States. The remainder of the island consists of park land surrounding the treatment plant, and offers walking, jogging, sightseeing, picnicking, and fishing.

07/14/2011