Meanings of undrinkable water in English

It's disgusting as is most of the "recycled but undrinkable water in modern societies".

And he called to mind the peculiar tepid undrinkable water which bubbles up by the side of artesian wells.

He said the Auckland Council-supplied non-potable water stations, containing undrinkable water, were a good token gesture, but it had not helped with business.

Very quickly SochiProblems went viral, as journalists and athletes and spectators were met with odd double-toilets, undrinkable water and buildings half-completed.