(DNAINFO) Murray Weiss — An underground leak has been discovered within the World Trade Centercomplex — and officials fear the seepage may be coming from the slurry wall that separates the newly rebuilt Ground Zero site from the Hudson River, DNAinfo New York has learned.
Workers began to hear the sound of rushing water behind the walls of lower concourses of the complex within the last two weeks, according to sources.
The discovery prompted the Port Authority to quietly call in engineering and construction experts to try to identify its cause, sources said.
Crews were also tasked with dismantling sections of walls and other previous construction along lower subterranean concourses to try to get to the running water and trace its origin. The work is expected to be extremely costly, sources say.
Sources say officials are concerned that the leak may be coming from a stretch of the 3,200-foot-long slurry wall that is hidden by other walls that house unopened commercial offices, retail shopping stores and underground warehouse space that are expected to operational by next summer.