NEW YORK — New York State has unveiled a $585 million plan to combat the plume of groundwater pollution that has been spreading from the former Northrop and Grumman and Navy facilities in Bethpage, Long Island.

Newsday says the plan, which was announced Thursday, proposes 24 wells connected with miles of piping and five treatment plants.

The cleaned water would be recharged into the aquifer through four basins, including at Bethpage State Park and Massapequa Creek.

The plan is to contain and treat the plume.

Volatile Organic Compound-contaminated groundwater extends from the Northrop Grumman Corporation/ NWIRP Bethpage facility to south of Hempstead Turnpike and to a depth of approximately 750 feet. Within this plume, VOCs are present at concentrations that exceed federal or New York State maximum contaminant levels; however, the groundwater contamination is not continuous throughout this area and is not present at all depths. (Navy)
Volatile Organic Compound-contaminated groundwater extends from the Northrop Grumman Corporation/ NWIRP Bethpage facility to south of Hempstead Turnpike and to a depth of approximately 750 feet. Within this plume, VOCs are present at concentrations that exceed federal or New York State maximum contaminant levels; however, the groundwater contamination is not continuous throughout this area and is not present at all depths. (Navy)

State officials say they will move ahead with the plan despite any potential objections from Grumman and the Navy.

They say they will sue them to recover the costs under state law.

Newsday says the U.S. Navy and Grumman didn’t immediately respond to requests for comment.