State environmental officials were on Long Island Thursday to inspect new wells that were installed after contamination was found in the groundwater near the old Grumman site in Bethpage. 

State Department of Environmental Conservation Commissioner Basil Seggos and other local officials were at the deep groundwater monitoring well on the Seamans Neck Road site in Wantagh. Officials say their goal was to reach 760 feet deep and collect as much material as they can to send for testing. 

"We need treatment options, we need disposal options, we need a way to hydraulically contain the flow of this material," said Seggos. 

News 12 Long Island reported in June that a Newsday Freedom of Information Law request revealed that radioactive materials were in fact handled at the old Grumman Aerospace facility. That information was obtained in a report written by Grumman and sent to the state DEC. 

"This new revelation underscores the urgent need for all levels of government to work together to immediately address the toxic soil contamination and to remediate the Grumman Navy plume," said Oyster Bay Supervisor Joseph Saladino. 

Seggos says if it's determined that more work needs to be done to contain the plume and the company and Navy refuses to help, he says the DEC would do the work, then go after the company for cost.