Hackensack River could be cleaned up as a Superfund site The Route 3 bridge spans the Hackensack River in Secaucus, N.J., Jan. 22, 2015. (AP File Photo) SECAUCUS, N.J. - New Jersey is moving ahead with a plan to get federal help to clean up the lower Hackensack River's toxic sediment, which is a remnant of the state's industrial past. Gov. Phil Murphy's administration is seeking placement of the 23-mile section of the river on the federal government's list of Superfund toxic sites, according to state Department of Environmental Protection Commissioner Shawn LaTourette. If the U.S. Enviro...