I am the one reader who reported this. I was drinking distilled water and my trainer told me that there is no fluoride in the water. The children at school can choose to have a fluoride drink instead.
Some day I should call them. Checked the minutes of meetings but I could not find the history.
Someone else on the oxygen forum checked his county in Florida and they did have fluoride.
For the last 40 years I have lived only in houses with well water. Of course that water should be tested, some houses in our town have either radon or arsenic and these people use filters.