At the present time, the Hazardville Water Company does not add fluoride to its water. Current State of Connecticut regulations require water companies that serve a population of 20,000 or more to add fluoride to their water. HWC serves water to just over 18,000; when this number reaches 20,000, HWC will begin fluoridating its water. Customers in Rye Hill serviced by Connecticut Water do have fluoride.