Environmental cleanup sites on Long Island

The state has reclassified a toxic site in Sag Harbor that used to be a manufactured gas plant, saying it is no longer a "a significant threat to public health and . . . the environment." Here are details on the site, know as "K - Sag Harbor MGP" and other active and closed federal and state Superfund sites in Nassau and Suffolk counties. Click on the map below or search in the table for details on 256 locations that are or were contaminated at some point. For more information on the types of sites, click here, and for details on some of the acronyms used for current or past contaminants, click here. To read a detailed federal or state report on any site, click on "Read report" in the table or in the map's pop-up box. And you can also read more about the Sag Harbor superfund site. This database was updated on Dec. 8, 2016.

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