According to the Waterford water & sewer association, the treatment plant that supplies water to the town has been depleted after a valve malfunctioned during a routine fire hydrant flush.
The association tells us the tanks are in a "recovery state" and are being re-filled.
Once water service is restored, residents are being told to boil their water until further notice.
There is no timetable for when the service will be restored or when the advisory will be lifted.