Robert Kesterson wrote:
> I presently live only a few hundred yards from where I grew up, drinking
> from a well sunk into the same aquifer).

That wouldn't be Pike's Peak, Colorado, would it?  *grin*  (The naturally
high levels of fluoride there and coincident low caries amongst children
were what eventually led to the fluoridation of drinking water in the US,
according to Wikipedia).

:j