Calverton plume at ex-Grumman site is more extensive than Navy acknowledges, Suffolk testing shows
A far more extensive plume of industrial chemicals is spreading beyond the former Grumman site in Calverton than the U.S. Navy has acknowledged, according to years of independent water testing by the Suffolk County Health Department.
The findings, presented by the county at a forum in Manorville on Tuesday night, show the hazardous and in some cases carcinogenic chemicals are migrating directly toward the Peconic River, putting the entire estuary at risk, according to a Suffolk hydrogeologist.