I'm kinda curious about this.

Seems fucked he'd like to his town about how the water is treated. On the other hand, I know that flouride in water can fuck with things like:

Making water based wood stain

Some fish don't like it

Then again I don't have much knowledge on these matters other than that. I'm not a denier of the positive effects of flouride, I know that in some scenarios it's not ideal. I think chlorine is likely more dangerous than flouride.