A state Department of Environmental Protection investigation found the West Tisbury fire station to be a contributor of per- and polyfluoroalkyl substances (PFAS) to the area’s groundwater supply, affecting nearby wells.
Known as PlumeStop, the project, which was completed this fall, seeks to stop the chemicals in their tracks, caging them underground before they reach the aquifer or other wells.
Hazardous levels of PFAS have been found in a private well in West Tisbury following a testing program offered to the town through the Massachusetts DEP.