I'm on a well, quite a deep one, that taps into a very deep aquifer below the niagara escarpment, with plentiful clean water, and I was always confident in the cleanliness of our water.

But I just put in a reverse osmosis system for cooking & drinking water because of this whole PFA thing. I suspect it's highly likely that given their use in fire retardants, lubrication, omniprescence all over the place, they're probably deep down in aquifers at this point.

Sigh.