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The Oyster Bay/Cold Spring Harbor watershed located on the north shore of Long Island, New York is the cleanest harbor in western Long Island Sound. Like many suburban communities this watershed is subject to continuous environmental threats including storm water runoff, development pressure and habitat impairments.

The Oyster Bay/Cold Spring Harbor Protection  Committee was formed in 2010 to improve the health of Oyster Bay and Cold Spring Harbor by coordinating the efforts of eleven (11) municipalities in the watershed and engaging the public.