MONTPELIER, Vt. (AP) — The Vermont Department of Environmental Conservation says two elementary schools in the state have chemical levels in their drinking water above a safe standard.

Officials say Grafton Elementary School and Warren Elementary School both tested above the state standard for PFAS, a group of man-made chemicals that have been linked to a number of adverse health effects. Vermont Public Radio reports the Department of Environmental Conservation is retesting all five schools that showed detectable levels to confirm results and will work toward long-term solutions with the schools.

Grafton's superintendent Chris Pratt says officials are doing everything they can to resolve the situation and have notified all teachers and families.