Northrop Grumman and state Department of Environmental Conservation officials on Tuesday updated Nassau County residents about a toxic underground plume.

Dozens of Bethpage residents gathered to hear the new proposal from the company to install monitoring and remedial wells, along with new pipes, in the community. Officials say each well will be connected to the water treatment plant, but some people are still concerned about how the work will impact their families and their health.

Grumman officials promised that the work, which is slated to start this summer, will be done with the least impact to the community. But project manager Ed Hannon did say the work is meant to clean up one of the smaller toxic plumes emanating from Bethpage Community Park.

The hope now is that the plume will be cleaned up in 10 years instead of 20.

Work is slated to begin in mid-July, but permits are still under review by the town. Grumman says it's paying for the bulk cost of the project.