|NYC Floatable Debris|
|LIS Sites Volume (cubic yds.)||Non-LIS Sites Volume (cubic yds.)
Land-based marine debris (floatables) are water-borne litter and debris. They come mainly from street litter that ends up in the City’s storm drains and sewers or from recreational activities such as pleasure boating and beach goers. During certain heavy rain events when water flow into treatment plants exceeds treatment capacity, floatables may be discharged into the surrounding waters.
A debris containment boom and skimmer vessel is used to contain against further dispersion of debris and skim floatable debris from a body of water. The NYC DEP has installed booms or floating barriers at 24 locations to capture floatables discharged from combined sewers, which handle sanitary and storm water. NYC DEP skimmer vessels are used to remove floatable debris from boomed sites. The Long Island Sound sites are: Bowery Bay, Bronx River, Clason Point, Cryder’s Lane, Flushing Bay (CS1), Flushing Bay (CS2), Flushing Creek 1, Flushing Creek 2, and Hunts Point.
This indicator measures efforts by New York City to remove land-based marine debris from their waterways. From 1995-2007, data from all New York City waterways was combined, but beginning in 2008 data from Long Island Sound sites were able to be separated and tabulated.
Floatable debris remains a problem in the highly urbanized portion of the Long Island Sound watershed.
Data does not include debris collected by the Cormorant in offshore sites.