BETHPAGE - A new report by the U.S. Geological Survey has concluded that original predictions about how much pollution seeped into the ground water near the old Northrop Grumman complex in Bethpage ignored certain factors such as water flow and how quickly the contaminates would dilute.

Twenty years ago, Grumman did a study predicting how badly ground water around the industrial site would be affected. Attorney Anthony Sabino, who represents the Bethpage Water District, said it grossly underestimated the damage.

"Grumman predicted very low concentrations of trichloroethane at our well sites," he says.

As News 12 Long Island has reported, a new plume of contamination was recently discovered coming from the old site.

In a statement, the aerospace and defense company said, "Northrop Grumman has been a good corporate citizen as evidenced by our investment of over $100 million toward our Bethpage site-remediation program over the past 20 years. We have received a copy of the USGS report and are reviewing it."