As an underground toxic chemical plume moves inexorably south from a former Northrop Grumman site in Bethpage, the state 's Department of Environmental Conservation has a plan to deal with it. But not everyone thinks the proposal is adequate. This is the time to speak up. Three water districts have told Gov. Andrew M. Cuomo that this cleanup plan repeats the mistakes of an earlier one for the larger plume. Together, the commingled Northrop Grumman plumes threaten wells of the Bethpage, South Farmingdale and Massapequa water districts.

DEC is receiving comments on the new plan until June 30. There are information sessions Monday and Tuesday at Bethpage Community Center and a community meeting Tuesday evening at Bethpage Senior High School. Attendance is important for residents of all three districts.

A community meeting will be held at 7 p.m. Tuesday at Bethpage Senior High School, 10 Cherry Ave.

Information sessions will be conducted from 7 to 9 p.m. Monday and 2:30 to 4 p.m. Tuesday at Bethpage Community Center, 103 Grumman Rd. West.

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